CRO Manager
/ £45000 - £60000 annum
INFO
SALARY:
£45000 - £60000
LOCATION
Permanent
CRO Manager
Cheshire (Hybrid - 3x Days a Week in Office)
£45,000 - £60,000
Are you passionate about Conversion Rate Optimisation and looking for the opportunity to build a CRO function from the ground up? I am partnering with an established digital business that's investing heavily in experimentation and optimisation. Following two years of successful contractor-led CRO activity, they're now looking for their first permanent CRO Manager to own the function, shape experimentation strategy and build a team as the business continues to grow; this is a genuine greenfield opportunity with significant autonomy, senior stakeholder exposure and the chance to make a measurable commercial impact from day one!
The Company
My client is an international digital marketing and customer acquisition business that owns and operates a portfolio of high-performing online brands across both B2B and B2C markets. Since launching in 2013, the business has grown to over 100 employees with operations across the UK, North America, Australia and Europe, supporting millions of customer interactions every year. Unlike traditional agencies, the business owns its own digital platforms, giving the team complete control over customer acquisition, experimentation and optimisation across the entire user journey. With over 40 products, multiple acquisition funnels and high volumes of website traffic, experimentation is viewed as a key commercial growth lever and has strong backing from senior leadership.
The Role
As the CRO Manager you will take ownership of Conversion Rate Optimisation across multiple brands and customer journeys; initially operating as an individual contributor, you'll have the opportunity to establish experimentation best practice before growing and leading the CRO capability over time.
Key responsibilities include:
- Owning the CRO roadmap across multiple digital brands
- Designing, implementing and analysing A/B and multivariate tests
- Building experimentation frameworks and best practice
- Identifying opportunities to improve customer journeys and conversion performance
- Partnering with Product, Marketing, PPC and Development teams
- Working with developers to deploy testing activity
- Using customer behaviour data to prioritise optimisation opportunities
- Measuring commercial impact and presenting recommendations to stakeholders
- Helping establish a long-term experimentation culture across the business
Your Skills & Experience
- Extensive CRO / Experimentation experience
- Proven experience delivering successful experimentation programmes
- Strong knowledge of A/B testing methodologies
- Hands-on experience with platforms such as Convert.com, Optimizely, VWO or similar
- Experience working with high-traffic websites
- Strong understanding of customer journey optimisation
- Excellent stakeholder management and communication skills
- Commercial mindset with a focus on measurable outcomes
- Experience within lead generation or performance marketing environments advantageous
- Previous mentoring or management experience beneficial
The Benefits
- £45,000 - £60,000
- Genuine opportunity to build and lead the CRO function; clear progression as the optimisation function expands
How to Apply
To register your interest in this opportunity, please submit your CV via the Apply link on this page. For more information, contact Adam Osborne at Harnham.
CONTACT
Adam Osborne
Manager
SIMILAR
JOB RESULTS
Data Engineer
Dallas
$140000 - $160000
+ Data Engineering
PermanentDallas, Texas
To Apply for this Job Click Here
Data Engineer
Location: Richardson, TX (Hybrid)
Compensation: $140,000-$160,000 Base + Annual Bonus + Comprehensive Benefits
About the Opportunity
A leading financial services organization is investing heavily in the modernization of its enterprise data platform and is looking for a Senior Data Engineer to join its growing Data Engineering team.
As a Data Engineer, you’ll help shape the future of a cloud-first data ecosystem supporting enterprise analytics, reporting, and data-driven decision making across a large, complex organization. You’ll partner with architects, engineers, and business stakeholders to build scalable, production-grade data solutions while helping establish engineering standards and best practices across the platform.
What You’ll Do
- Design, build, and optimize enterprise-scale ETL/ELT pipelines
- Develop modern cloud data solutions using AWS, Snowflake, dbt, and Fivetran
- Create scalable, reusable data models that power analytics and reporting
- Design high-performance Snowflake architectures with a focus on scalability, security, and cost optimization
- Build robust data transformations using SQL, Python, and PySpark
- Implement Infrastructure as Code using Terraform
- Develop CI/CD pipelines for automated deployment and testing of data assets
- Improve data quality, observability, governance, and operational monitoring
- Partner with engineering, architecture, security, and analytics teams to deliver enterprise data solutions
- Mentor other engineers and help establish engineering standards across the organization
What We’re Looking For
- 4+ years of Data Engineering experience
- Strong experience designing and building enterprise-scale data pipelines
- Hands-on expertise with Snowflake, dbt, and Fivetran
- Experience building cloud-native data platforms in AWS
- Advanced SQL and Python skills (PySpark preferred)
- Experience with Terraform and Infrastructure as Code
- Experience implementing CI/CD for data engineering workflows
- Strong understanding of modern data architecture, data modeling, and analytics engineering
- Excellent communication skills with the ability to collaborate across technical and business teams
Why Join?
- Highly visible role driving enterprise data transformation
- Modern cloud-native technology stack
- Opportunity to influence engineering standards and architecture
- Collaborative, innovation-focused engineering culture
- Competitive compensation, annual bonus, comprehensive benefits, and long-term career growth

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Senior Machine Learning Engineer
Irvine
$180000 - $220000
+ Data Science & AI
PermanentIrvine, California
To Apply for this Job Click Here
What You’ll Do
- Evaluate existing machine learning models and identify performance improvement opportunities
- Train, test, deploy, and continuously refine production ML models
- Improve feature engineering, model architectures, prediction accuracy, and optimization performance
- Analyze large-scale datasets containing millions of records across multiple sources
- Design and execute experiments to validate model improvements
- Develop production-quality Python code and collaborate through code reviews and testing practices
- Translate insights from complex datasets into measurable product and business outcomes
- Monitor model effectiveness and evolve solutions as user behavior and market conditions change
- Partner with Product, Engineering, and Data teams to align machine learning initiatives with business objectives
What Success Looks Like
During the first several months, you will:
- Gain a deep understanding of existing machine learning systems and business objectives
- Analyze large and complex datasets to uncover optimization opportunities
- Improve prediction, ranking, recommendation, or optimization models
- Introduce enhanced features, architectures, and model configurations
- Deliver production-ready improvements that positively impact key performance metrics and revenue
Ideal Background
Successful candidates may come from backgrounds such as:
- Senior Machine Learning Engineer
- Applied Machine Learning Engineer
- Data Scientist with strong production ML experience
- Software Engineer specializing in Machine Learning
Experience in any of the following areas is highly valued:
- Advertising technology and optimization
- Ranking and bidding systems
- Recommendation engines
- Personalization systems
- Search and relevance algorithms
- Marketplace optimization
- User value prediction
- Large-scale forecasting and predictive systems
Candidates from consumer technology, marketplaces, digital products, or other large-scale data environments are encouraged to apply.
Required Qualifications
- 5+ years of industry experience in Machine Learning Engineering, Applied Machine Learning, or Data Science
- Bachelor’s degree in Computer Science, Engineering, Mathematics, Statistics, or a related technical field
- Strong Python programming skills with hands-on experience building ML solutions
- Advanced SQL skills, including complex joins, aggregations, and multi-source analysis
- Experience working with datasets containing millions of records
- Experience building, deploying, and optimizing production machine learning models
- Strong understanding of feature engineering and its impact on model performance
- Experience writing maintainable, testable, production-quality code
- Ability to operate independently and drive technical decisions
Preferred Qualifications
- Experience with optimization, ranking, recommendation, or personalization systems
- Background in advertising technology or digital monetization platforms
- Familiarity with feature stores and modern machine learning workflows
- Experience with cloud platforms and modern data technologies
- Knowledge of large-scale experimentation frameworks and model evaluation methodologies

To Apply for this Job Click Here
CRO Manager
Macclesfield
£55000 - £60000
+ Digital Analytics
PermanentMacclesfield, Cheshire
To Apply for this Job Click Here
CRO Manager
Macclesfield – Hybrid (2-3 Days Per Week)
£50k-£60k
I’m hiring a CRO Manager for one of the UK’s leading customer generation businesses, operating a portfolio of high-traffic digital brands across B2B and B2C markets.
This is a rare opportunity to build an in-house CRO function from scratch, taking ownership of experimentation strategy across multiple brands, products, and customer journeys while helping shape the future of optimisation within the business.
The company
A fast-growing performance marketing and technology business that owns and operates its own digital brands rather than acting as an agency.
Established in 2013, they’ve grown into an international organisation operating across the UK, USA, Canada, Australia, and France, generating high-intent leads through a combination of proprietary technology, data, and digital marketing.
With more than 40 products across multiple acquisition funnels and customer journeys, they have significant traffic volumes and enormous optimisation potential.
The opportunity
After investing in CRO through external consultants for the last two years, the business is now bringing the capability in-house for the first time.
Reporting directly into senior leadership, you’ll have full ownership of:
- The experimentation roadmap
- CRO strategy
- Testing framework and methodology
- Optimisation prioritisation
- Future team growth
This is a genuine greenfield role with strong executive support and a clear opportunity to build a team around you over time.
What you’ll be doing
- Own and develop the CRO roadmap across multiple digital brands
- Design, execute and analyse A/B and multivariate tests
- Build a scalable experimentation framework and testing culture
- Analyse customer behaviour and identify opportunities to improve conversion performance
- Partner with developers to implement experiments and winning variants
- Collaborate with PPC, Marketing, Product and Media Buying teams
- Measure and communicate the commercial impact of optimisation activity
- Prioritise initiatives based on business value and revenue opportunity
- Help establish and grow the company’s internal CRO capability
What they’re looking for
Must-haves
- 5+ years’ experience in Conversion Rate Optimisation
- Proven experience running end-to-end experimentation programmes
- Strong hypothesis generation and test design skills
- Experience withCRO platforms such as:
- Optimizely
- VWO
- Convert.com
- AB Tasty
- Similar tools
- Strong understanding of customer journey optimisation
- Experience working on high-traffic websites
- Excellent stakeholder management and communication skills
- Commercial mindset focused on measurable business outcomes
Nice to have
- Lead generation experience
- Agency experience
- Previous mentoring or management experience
- Experience helping build or mature an experimentation function
The team
Initially you’ll operate as an individual contributor with full ownership of experimentation.
You’ll work closely with:
- Marketing
- PPC
- Media Buying
- Product
- Development
The business already has strong development resources in place to support implementation, allowing you to focus on identifying and delivering high-impact opportunities.
Why this role
- Build an internal CRO capability from the ground up
- Own experimentation strategy across multiple brands
- Huge volumes of traffic and optimisation opportunities
- Strong backing from senior leadership
- Clear pathway into team leadership
- Genuine autonomy and ownership from day one
- Exposure across international markets
- Significant commercial impact
Package
- £50,000 – £60,000 salary
- Bonus scheme
- Hybrid working (3 days min per week in Macclesfield)
- Clear progression into leadership
- High levels of ownership and responsibility
Interview process
- Initial interview with Marketing Manager
- Practical task and presentation focused on experimentation strategy
- Final interview with senior leadership

To Apply for this Job Click Here
Lead Decision Scientist – (Experimentation)
London
£80000 - £90000
+ Advanced Analytics & Marketing Insights
PermanentLondon
To Apply for this Job Click Here
Lead Decision Scientist (Experimentation)
Hybrid | Brighton | £90,000 Base
We’re partnering with a fast-growing, product-led technology business that is investing heavily in its Data & AI function. As the organisation evolves, they’re looking for a commercially minded Lead Decision Scientist to help shape product strategy through data-driven decision making.
This is an analytics-focused role where you’ll work closely with Product Managers and Engineering teams to identify opportunities, size business impact and influence where the business invests.
The Role
You’ll be responsible for:
- Identifying and solving high-value business problems through data.
- Conducting product and exploratory analysis to uncover opportunities.
- Designing and measuring experiments, including A/B testing.
- Defining success metrics and evaluating product performance.
- Translating analytical insights into clear commercial recommendations.
- Partnering with cross-functional teams to influence product decisions.
What We’re Looking For
- Experience in Product Analytics, Decision Science or Commercial Analytics.
- Strong SQL and analytical problem-solving skills.
- Experience designing and evaluating experiments.
- Excellent stakeholder management and communication skills.
- A commercial mindset with the ability to influence decision making.
- Comfortable working in fast-paced, ambiguous product environments.

To Apply for this Job Click Here
Data & AI Strategy Consultant
London
£90000 - £110000
+ Data Science & AI
PermanentLondon
To Apply for this Job Click Here
Data & AI Strategy Consultant
London hybrid, competitive salary plus bonus and benefits
The Company
They are a global management consultancy with a strong reputation across capital markets and financial services, alongside a growing presence in other regulated industries. The business specialises in end to end transformation, deploying cross functional teams to solve complex client challenges. Their data and AI practice is expanding rapidly, with increasing demand across strategy, governance and data driven transformation.
The Role
You will work closely with senior stakeholders to define and deliver data and AI strategies for large organisations. The work is varied, ranging from short discovery engagements to longer transformation programmes. Responsibilities include:
- Leading or supporting the development of AI and data strategies for enterprise clients
- Engaging with C suite stakeholders to assess current capabilities and define future state roadmaps
- Identifying high value use cases for AI and advanced analytics
- Advising clients on build versus buy decisions for AI solutions
- Supporting AI governance frameworks, including policies and controls for emerging technologies such as Generative AI
- Translating complex technical concepts into clear, actionable recommendations
- Contributing to wider transformation programmes across data management and governance
Your Skills & Experience
- Strong experience in data or AI strategy within a consulting or advisory environment
- Understanding of AI governance, with awareness of policies, risk and regulatory considerations
- Ability to operate in a client facing role, engaging senior stakeholders and driving discussions
- Strong communication and storytelling skills, bridging technical and non technical audiences
- Experience in financial services or another regulated industry such as energy or pharmaceuticals is beneficial
- Understanding of how consulting engagements operate, including delivery models and stakeholder management
What They Offer
- Competitive salary
- Clear progression opportunities across Senior Consultant and Principal levels
- Exposure to high profile, C suite projects across data and AI strategy
- A collaborative and growing team environment within an established consultancy
- Opportunity to specialise in governance and strategy rather than hands on technical delivery
How to Apply
If you are interested in shaping AI strategy and working closely with senior stakeholders on complex transformation programmes, please apply to learn more.

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Data Scientist
London
£90000 - £100000
+ Data Science & AI
PermanentLondon
To Apply for this Job Click Here
Data Scientist, Causal Inference
London – 1x every 6 weeks
The Company
They are a global, product led organisation operating at scale with a highly sophisticated data environment. The business places data at the centre of decision making and continues to invest heavily in advanced analytics and AI capabilities. Their datasets are rich and complex, enabling deep analysis of customer behaviour across the full lifecycle. This role sits within a dedicated CLV team focused on maximising long term customer value.
The Role
You will focus on applying causal inference techniques to quantify the true impact of customer behaviours, product features and commercial initiatives. Your work will directly influence how the business invests in growth, retention and engagement. Responsibilities include:
- Applying causal inference methodologies to measure incrementality and customer lifetime value drivers
- Designing and analysing experiments, quasi experiments and observational studies
- Developing frameworks to distinguish correlation from causation in customer behaviour
- Using techniques such as propensity score matching, double machine learning and counterfactual modelling
- Measuring the incremental impact of actions such as product usage or subscription adoption
- Working with large scale customer and product datasets to identify value drivers
- Collaborating with stakeholders to translate complex analysis into clear business recommendations
- Supporting the productionisation of analytical solutions
Your Skills and Experience
- Strong statistical foundation with the ability to apply rigorous analytical methods
- Experience working with customer, product or subscription data
- Knowledge of causal inference techniques such as propensity scoring, incrementality testing and counterfactual analysis
- Experience designing experiments and interpreting A B testing results
- Ability to translate complex technical outputs into clear business insights
- Strong collaboration and stakeholder management skills
- Proactive approach with a focus on delivering commercial impact
- Academic background in a quantitative discipline such as mathematics, statistics, economics or similar
What They Offer
- Competitive salary and comprehensive benefits package
- Clear progression opportunities within a growing data science function
- Exposure to cutting edge causal inference and experimentation methodologies
- Opportunity to work on large scale, high impact data problems
- Collaborative and forward thinking data environment
How to Apply
To find out more or apply for this Data Scientist, Causal Inference role, please get in touch.

To Apply for this Job Click Here
Senior Decision Scientist
Brighton
£80000 - £90000
+ Data Science & AI
PermanentBrighton, East Sussex
To Apply for this Job Click Here
Senior Decision Scientist
Brighton (Hybrid), Competitive Salary
This is an opportunity to join a highly data-driven, product-led organisation where analytics and AI are central to shaping commercial decisions and customer experience. As part of a growing data function, you will play a key role in embedding data into product development and driving measurable business impact.
The Company
They are an established and fast-growing digital platform operating at scale across international markets. The business is investing heavily in data, AI, and product innovation, with a strong focus on using insight to drive commercial performance.
Their data function is evolving into a hub-and-spoke model, embedding decision-focused data professionals directly into product teams. This creates a collaborative environment where data has real influence on strategy, product direction, and customer outcomes.
The Role
You will sit within a cross-functional product squad, acting as the data expert responsible for turning insight into action. Your work will shape product decisions, quantify impact, and drive continuous improvement. Responsibilities include:
- Acting as the data lead within a product squad, influencing decisions from planning through to delivery
- Identifying and sizing opportunities to improve product performance and customer experience
- Analysing customer journeys to uncover friction points, conversion drivers, and growth opportunities
- Defining success metrics and building dashboards to track performance
- Designing and running experiments, including A/B testing and statistical analysis
- Developing data-driven features, insights, and lightweight models where appropriate
- Communicating findings clearly to stakeholders, driving actionable recommendations
- Leveraging AI tools and modern analytics approaches to accelerate insight generation
Your Skills and Experience
- Strong commercial experience in analytics, data science, or product analytics roles
- Advanced SQL skills and experience with Python or R for analysis and experimentation
- Experience working with product, engineering, or commercial stakeholders in a collaborative environment
- Strong understanding of experimentation, hypothesis testing, and statistical analysis
- Ability to translate complex data into clear business recommendations
- Experience working with large datasets and modern data platforms
- Interest in AI and emerging technologies, with practical exposure to applied use cases
- A proactive and curious mindset, with the ability to work effectively in ambiguous environments
What They Offer
- Competitive salary and benefits package
- Hybrid working with a collaborative team environment
- Strong focus on learning and development, including dedicated time and resources
- Opportunity to work on impactful, business-critical projects
- Clear progression opportunities within a growing data function
- Exposure to cutting-edge tools, AI-driven workflows, and product innovation
How to Apply
Please apply with your CV to be considered for this opportunity.

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Lead Data Scientist – commercial
Brighton
£85000 - £90000
+ Advanced Analytics & Marketing Insights
PermanentBrighton, East Sussex
To Apply for this Job Click Here
Lead Data Scientist
This is a important, commerical Lead Data Scientist role within a fast-growing, product-led environment that is redefining how data drives commercial outcomes. The position sits at the intersection of product, analytics and AI, focusing on identifying the right problems to solve, quantifying opportunities and delivering measurable business impact.
The Company
They are an international, product-led digital platform operating across multiple regions, with a strong focus on customer experience, sustainability and innovation. Data and AI sit at the core of their growth strategy, supported by a modern data stack, strong documentation and executive buy-in. The business is evolving into a more decentralised data model, embedding decision-makers directly within product teams. This creates a highly collaborative environment where data professionals have direct influence on product direction and commercial outcomes.
The Role
- Act as the data voice within product teams, shaping decisions from ideation through to delivery
- Identify and define key business problems, with a focus on commercial impact and customer outcomes
- Conduct opportunity sizing, exploratory analysis and deep-dive product analytics
- Design and implement experiments, including A B testing and post-test analysis
- Define success metrics, dashboards and measurement frameworks with product stakeholders
- Translate analysis into clear recommendations that influence investment decisions
- Collaborate with engineering and data teams to build data-driven product features
- Apply light touch data science techniques such as segmentation, forecasting and recommendation approaches
- Use AI and emerging technologies to prototype and enhance product capabilities
- Balance analytical rigour with pace in a fast-moving, ambiguous environment
Your Skills and Experience
- Commercial experience using data to drive business decisions and measurable outcomes
- Proven ability to frame ambiguous problems and translate them into structured analytical approaches
- Experience in product/customer analytics, experimentation and statistical analysis
- Confident stakeholder manager with the ability to influence cross-functional teams
- SQL skills and working knowledge of a programming language such as Python or R
- Understanding of modern data platforms and dashboarding tools
- Strong grasp of experimentation design, including hypothesis testing and sample sizing
- Interest in AI and practical experience using data or AI tools to enhance workflows
- A product mindset, with the ability to connect data work to customer experience and revenue impact
What They Offer
- Competitive salary and comprehensive benefits package
- Clear progression opportunities as the data function continues to scale
- Dedicated learning and development support, including structured upskilling and training resources
- Opportunity to work on cutting edge AI and data-driven product initiatives
- Collaborative, inclusive environment with strong data foundations and leadership support
How to Apply
If you are interested in solving complex business problems and shaping product decisions through data, apply now to learn more.

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Senior Decision Scientist
Brighton
£70000 - £90000
+ Data Science & AI
PermanentBrighton, East Sussex
To Apply for this Job Click Here
Senior Decision Scientist
London – hybrid – 3x a week
The Company
They are a global, technology driven marketplace operating across multiple regions, with a strong focus on sustainability and circular commerce. The business has experienced significant growth and continues to invest heavily in product, data and AI capabilities. Data sits at the heart of their strategy, with a mature data platform, strong documentation practices and increasing use of AI assisted analytics. They are evolving their data function into a hub and spoke model, embedding decision making closer to product teams.
The Role
You will operate at the intersection of analytics, product and commercial strategy, helping the business identify the right problems to solve and quantify impact. Key responsibilities include:
- Defining and scoping business problems with a strong commercial lens
- Opportunity sizing and identifying areas to drive revenue, efficiency or customer experience improvements
- Leading product analytics and supporting product squads with insight driven recommendations
- Designing experiments, defining success metrics and measuring A B testing outcomes
- Collaborating with analytics engineering and contributing to the wider data ecosystem
- Applying light touch data science where appropriate, such as segmentation or recommendation logic
- Influencing stakeholders across product, data and commercial teams to support decision making
Your Skills and Experience
- Strong commercial experience in data science within a product led environment
- Ability to translate ambiguous business challenges into structured analytical approaches
- Experience in product analytics, experimentation and performance measurement
- Confidence working with stakeholders and influencing decision making
- Exposure to statistical methods, modelling or machine learning concepts
- Comfortable balancing analytical rigour with pace and prioritisation
- Interest in AI, emerging analytics tools and data driven product development
What They Offer
- Competitive salary and comprehensive benefits package
- Clear progression opportunities as the team scales and embeds into product squads
- Exposure to a modern data and AI environment with strong foundations
- A collaborative culture focused on impact, learning and innovation
- The opportunity to shape how data drives commercial decisions in a growing organisation
How to Apply
If you are interested in applying analytics and data science to solve meaningful business problems and drive measurable impact, please get in touch to learn more.

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CRO Manager
£45000 - £60000
+ Digital Analytics
PermanentCheshire
To Apply for this Job Click Here
CRO Manager
Cheshire (Hybrid – 3x Days a Week in Office)
£45,000 – £60,000
Are you passionate about Conversion Rate Optimisation and looking for the opportunity to build a CRO function from the ground up? I am partnering with an established digital business that’s investing heavily in experimentation and optimisation. Following two years of successful contractor-led CRO activity, they’re now looking for their first permanent CRO Manager to own the function, shape experimentation strategy and build a team as the business continues to grow; this is a genuine greenfield opportunity with significant autonomy, senior stakeholder exposure and the chance to make a measurable commercial impact from day one!
The Company
My client is an international digital marketing and customer acquisition business that owns and operates a portfolio of high-performing online brands across both B2B and B2C markets. Since launching in 2013, the business has grown to over 100 employees with operations across the UK, North America, Australia and Europe, supporting millions of customer interactions every year. Unlike traditional agencies, the business owns its own digital platforms, giving the team complete control over customer acquisition, experimentation and optimisation across the entire user journey. With over 40 products, multiple acquisition funnels and high volumes of website traffic, experimentation is viewed as a key commercial growth lever and has strong backing from senior leadership.
The Role
As the CRO Manager you will take ownership of Conversion Rate Optimisation across multiple brands and customer journeys; initially operating as an individual contributor, you’ll have the opportunity to establish experimentation best practice before growing and leading the CRO capability over time.
Key responsibilities include:
- Owning the CRO roadmap across multiple digital brands
- Designing, implementing and analysing A/B and multivariate tests
- Building experimentation frameworks and best practice
- Identifying opportunities to improve customer journeys and conversion performance
- Partnering with Product, Marketing, PPC and Development teams
- Working with developers to deploy testing activity
- Using customer behaviour data to prioritise optimisation opportunities
- Measuring commercial impact and presenting recommendations to stakeholders
- Helping establish a long-term experimentation culture across the business
Your Skills & Experience
- Extensive CRO / Experimentation experience
- Proven experience delivering successful experimentation programmes
- Strong knowledge of A/B testing methodologies
- Hands-on experience with platforms such as Convert.com, Optimizely, VWO or similar
- Experience working with high-traffic websites
- Strong understanding of customer journey optimisation
- Excellent stakeholder management and communication skills
- Commercial mindset with a focus on measurable outcomes
- Experience within lead generation or performance marketing environments advantageous
- Previous mentoring or management experience beneficial
The Benefits
- £45,000 – £60,000
- Genuine opportunity to build and lead the CRO function; clear progression as the optimisation function expands
How to Apply
To register your interest in this opportunity, please submit your CV via the Apply link on this page. For more information, contact Adam Osborne at Harnham.

To Apply for this Job Click Here
Lead Decision Scientist – Product Analytics
London
£75000 - £90000
+ Advanced Analytics & Marketing Insights
PermanentLondon
To Apply for this Job Click Here
Lead Decision Scientist (Product Analytics)
Hybrid | Brighton | £90,000 Base
We’re partnering with a fast-growing, product-led technology business that is investing heavily in its Data & AI function. As the organisation evolves, they’re looking for a commercially minded Lead Decision Scientist to help shape product strategy through data-driven decision making.
This is an analytics-focused role where you’ll work closely with Product Managers and Engineering teams to identify opportunities, size business impact and influence where the business invests.
The Role
You’ll be responsible for:
-
Identifying and solving high-value business problems through data.
-
Conducting product and exploratory analysis to uncover opportunities.
-
Designing and measuring experiments, including A/B testing.
-
Defining success metrics and evaluating product performance.
-
Translating analytical insights into clear commercial recommendations.
-
Partnering with cross-functional teams to influence product decisions.
What We’re Looking For
-
Experience in Product Analytics, Decision Science or Commercial Analytics.
-
Strong SQL and analytical problem-solving skills.
-
Experience designing and evaluating experiments.
-
Excellent stakeholder management and communication skills.
-
A commercial mindset with the ability to influence decision making.
-
Comfortable working in fast-paced, ambiguous product environments.
What’s on Offer
-
£90,000 base salary.
-
Hybrid working
-
Opportunity to join a growing Data & AI team within a modern, product-led organisation.
-
Work on high-impact product initiatives with significant commercial influence.
Interview Process
-
Initial interview with the Hiring Manager and Product team.
-
Final on-site presentation discussing a previous project, your approach and the commercial impact delivered.
Find out more and apply via the link below!

To Apply for this Job Click Here
Director, Public & Private Cloud
Dallas
$250000 - $251000
+ Data Management & Governance
PermanentDallas, Texas
To Apply for this Job Click Here
Director, Public & Private Cloud Engineering
A global semiconductor and engineering-led organisation is looking for a Director of Public & Private Cloud Engineering to lead an enterprise cloud platform organisation focused on connecting private and public cloud into one unified environment.
This is a highly strategic leadership role with a strong delivery focus, leading a global engineering organisation across cloud platform engineering, SRE, DevOps, and infrastructure functions.
The Role
Reporting into senior technology leadership, this person will oversee an organisation of 50-100 engineers and leaders across the US and India while driving the evolution of a connected cloud platform environment across both private and public cloud.
The organisation already has strong technical capability across cloud and infrastructure, but the current environment remains fragmented across teams and platforms. This role is focused on bringing those environments together, building alignment across engineering functions, and driving platform delivery across the business.
Key Responsibilities
* Lead a global cloud engineering organisation across platform engineering, SRE, DevOps, and infrastructure
* Drive strategy and delivery across both private and public cloud environments
* Connect siloed infrastructure and platform functions into a unified cloud platform
* Partner closely with senior technical leadership and architecture teams to deliver cloud initiatives
* Oversee Kubernetes, compute, storage, networking, GPU infrastructure, and cloud services across modern environments
* Improve reliability, scalability, automation, and operational efficiency across cloud platforms
* Build trust, autonomy, and strong engineering culture across distributed teams
* Drive modern infrastructure practices using open source tooling and infrastructure-as-code approaches
Required Experience
* 12+ years across cloud, infrastructure, platform engineering, or private cloud environments
* Experience leading managers and senior engineering leaders within enterprise organisations
* Strong experience across both private and public cloud environments
* Deep expertise across AWS plus additional public cloud exposure preferred
* Strong infrastructure automation and IaC experience using Terraform, Ansible, Python, or similar tooling
* Experience building or scaling internal infrastructure platforms or cloud engineering environments
* Strong understanding of networking, security, distributed systems, and infrastructure operations
* Proven ability to deliver technical strategy within complex engineering environments
Preferred Background
* Kubernetes or OpenShift platform leadership experience
* Experience within large enterprise or engineering-led organisations
* Exposure to AI/ML, GPU, or high-performance compute environments
* Strong open source tooling experience
This is a highly visible leadership opportunity within a global engineering environment offering significant ownership, long-term platform impact, and executive-level exposure.

To Apply for this Job Click Here
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