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Staff Frontend Engineer

Location: New York City (Hybrid)

Pay: $180k – $225k Base + Bonus & Equity

About the Opportunity

A rapidly growing, venture-backed technology company within the travel industry is seeking a Senior/Staff Frontend Engineer to help build and scale its core platform. The organization is transforming a large, established market through a combination of modern technology, data-driven solutions, and a strong community-focused approach. This individual will play a key role in developing customer-facing products, internal tools, and platform integrations while partnering closely with Product and Design teams

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Responsibilities

• Partner with Product Managers and Designers to define, prioritize, and deliver key product initiatives
• Build and enhance a web application used for onboarding, workflow management, search functionality, booking experiences, and customer interactions
• Develop and maintain scalable frontend solutions for customer-facing and internal platforms
• Collaborate with backend engineers to design and implement end-to-end technical solutions
• Own projects throughout the full development lifecycle, from architecture through deployment
• Contribute to frontend best practices, code quality, and application performance
• Develop integrations with third-party platforms and external systems
• Help shape the overall user experience through close collaboration with cross-functional teams

Must Have Qualifications

• Bachelor’s degree in Computer Science or a related technical field
• 5+ years of frontend web development experience
• 3+ years of professional experience with React, Vue.js, or Angular
• Experience building stateful and event-driven web applications

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DATA ANALYST (6-MONTH FTC)
LONDON/HYBRID
UP TO £55,000

This is an opportunity to join a high-profile regulatory programme where your work will directly support business-critical decision making. Sitting within an established Analytics team, you will play a key role in delivering accurate data analysis, reporting, and extracts to support a major FCA redress initiative.

ROLES AND RESPONSIBILITIES:

The Data Analyst will:

• Support the delivery of a major FCA redress programme.
• Analyse complaints and regulatory datasets to provide actionable insights.
• Write, maintain, and optimise SQL queries.
• Produce large-scale data extracts for operational and reporting requirements.
• Manage high volumes of data requests while maintaining exceptional accuracy.
• Deliver reporting and management information to support programme outcomes.
• Collaborate with technical and non-technical stakeholders across the business.
• Ensure data quality and supporting regulatory reporting requirements.

YOUR SKILLS AND EXPERIENCE:
The ideal candidate will have the following skills and experience:

• Strong commercial SQL experience, using SQL as a primary analytical tool.
• Proven ability to manipulate, transform, and analyse complex datasets.
• Experience handling large data extract and reporting requests.
• Strong attention to detail and a commitment to data accuracy.
• Ability to work effectively in a regulated or highly governed environment.
• Experience engaging with business stakeholders and translating requirements into deliverables.
• Availability to start within a reasonable timeframe.
• Financial services experience is beneficial

APPLY BELOW

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Data Scientist – MMM

This is an exciting opportunity for a Junior Data Science Manager to work at the intersection of data science and marketing effectiveness. You will use advanced modelling techniques to influence real business decisions, while continuing to develop both your technical expertise and your ability to communicate complex insights clearly.

The Company
They are a global, data-led organisation operating at the forefront of marketing analytics and technology. Built on strong technical foundations, they combine proprietary tools, experimentation, and data science to help organisations understand what drives performance. Their teams work across a wide range of clients and industries, delivering measurable impact through rigorous analysis and innovation. They are committed to developing talent and fostering a collaborative, learning-focused environment.

The Role

• Support the delivery of marketing mix modelling projects, owning key components such as data preparation, model execution, and scenario analysis
• Apply statistical and analytical techniques to solve business problems across marketing and performance data
• Translate complex model outputs into clear, actionable insights that inform budget and channel decisions
• Collaborate with senior stakeholders and contribute to high-quality client deliverables
• Use AI tools to enhance productivity, accelerate development, and improve communication of outputs

Your Skills and Experience

• Strong commercial experience in data science or statistical modelling, ideally within marketing analytics
• Hands-on experience with marketing mix modelling or similar approaches, with exposure to tools such as Meridian, Robyn, or PyMC
• Proficiency in Python and experience working with cloud platforms such as GCP
• Understanding of Bayesian statistics and marketing attribution concepts
• Ability to communicate technical findings clearly to non-technical audiences
• Interest in applying AI tools to enhance data science workflows

What They Offer

• Opportunity to work on data-driven projects across a range of industries
• Ongoing professional development and clear progression within a growing data science function
• Access to cutting-edge tools like Google Meridian and AI-driven workflows

How to Apply
Apply now to learn more about this Junior Data Science Manager opportunity and take the next step in your data science career.

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Data Analyst – Up to 45k

This is an opportunity to work with a genuinely unique behavioural dataset, combining digital activity, consumer journeys and emerging AI interactions. You will help answer complex commercial questions for leading brands while shaping how data is used to understand real-world behaviour.

The Company
They are a specialist data and analytics business focused on understanding how advertising and digital experiences influence consumer behaviour. Their work blends advanced analytical techniques with rich, multi-source datasets to uncover insights that traditional approaches cannot provide. Operating as a close-knit team, they encourage new ideas and give individuals the autonomy to make a real impact. Their client base includes well-known organisations across media and consumer sectors.

The Role

You will work hands-on with large behavioural datasets, analysing how consumers interact across digital platforms, media channels and AI tools. Responsibilities include:

* Extracting, querying and analysing data using SQL
* Cleaning and structuring complex datasets for analysis
* Identifying patterns, trends and commercially relevant insights
* Delivering post-campaign analysis to evaluate performance
* Supporting bespoke analytical projects addressing business challenges
* Translating data into clear, client-ready insights and presentations
* Working across both quantitative and qualitative data sources
* Developing scalable analytical processes and methodologies
* Collaborating closely with senior stakeholders to evolve analytical outputs

Your Skills & Experience
* Strong commercial experience working in a hands-on data analysis role
* Advanced SQL skills for data extraction and manipulation
* Confidence working with large, complex datasets
* Strong Excel capability for analysis and data handling
* Ability to interpret data and communicate insights effectively
* Experience with quantitative analysis and problem-solving
* Curiosity and attention to detail when exploring new datasets
* Familiarity with modern AI or LLM tools and an interest in their application within analytics

What They Offer
* Salary up to £45,000
* Hybrid working model with regular collaboration in a London office
* Exposure to highly unique and innovative datasets
* Opportunity to work closely with senior leadership
* A fast-paced environment with strong ownership and career development potential

How to Apply
If you are a commercially minded Data Analyst looking to work with cutting-edge datasets, apply to find out more.

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This is an opportunity to join an analytics team within a leading data-led marketing environment. The role offers strong exposure to digital performance, customer insight, and end-to-end campaign measurement, with clear impact on client strategy and business outcomes.

The Company
They are a global consultancy-style organisation operating at the intersection of data, technology and marketing. Their work focuses on delivering measurable impact through customer-centric insights and advanced analytics. With a strong agency and consulting heritage, they partner with major brands to transform marketing effectiveness and customer experience. They foster an inclusive and collaborative culture, with a strong emphasis on continuous learning and development.

The Role
You will play a role in delivering data-driven insights across digital campaigns and customer journeys.

Responsibilities will include:

• Leading post campaign analysis to evaluate performance and identify optimisation opportunities
• Delivering customer journey reporting across multiple digital touchpoints
• Building and maintaining dashboards using tools such as Power BI or Tableau
• Working with large datasets using SQL and Python to generate insights
• Collaborating with stakeholders to translate business questions into analytical solutions
• Supporting test and learn methodologies, including A/B testing and campaign optimisation
• Mentoring junior analysts and contributing to best practice within the team

Your Skills and Experience

• Commercial experience in marketing analytics within an agency or consultancy environment
• Experience in digital analytics, including web and social performance measurement – GTM, Google Analytics
• Proven ability to deliver post campaign analysis and customer journey insights
• Experience with SQL and Python for data manipulation and analysis
• Experience with data visualisation tools such as Power BI or Tableau
• Understanding of tagging, attribution and digital measurement frameworks
• Stakeholder management skills with the ability to present insights clearly

What They Offert

• Structured learning and development programmes
• Clear progression pathways within a growing analytics function
• Comprehensive benefits package focused on wellbeing and work-life balance

How to Apply
If you are interested in applying your digital analytics expertise in a client-facing, insight-driven environment, please submit your CV to learn more.

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This is an opportunity to join a data-led consumer business where analytics is central to commercial decision-making. You will play an important role in shaping growth strategy across acquisition, product and marketing, partnering closely with senior stakeholders to drive measurable impact.

The Company
They are a high-growth, direct-to-consumer business operating in the subscription space, focused on delivering premium products through a digitally native model. Backed by significant investment, they are scaling rapidly and expanding into new markets. Analytics sits at the core of the organisation, influencing performance across marketing, product and customer experience. The business fosters a high-performance environment where data is used proactively to unlock growth opportunities.

The Role
You will act as a strategic partner to growth, marketing and product teams, using data to inform decisions and identify opportunities. Key responsibilities include:

• Proactively uncover growth opportunities across acquisition, conversion and retention
• Partner with marketing and product teams to influence strategy and prioritisation
• Translate complex business questions into clear analytical frameworks and recommendations
• Analyse performance across funnels, campaigns, experiments and customer lifecycle
• Design and evaluate A B tests and other experiments to measure impact
• Diagnose trends in performance and identify underlying drivers
• Deliver clear, actionable insights that influence commercial decisions
• Support stakeholders in understanding trade-offs between growth, efficiency and profitability
• Help improve data foundations, tracking and reporting capabilities

Your Skills and Experience

• Strong SQL skills and experience working with large datasets
• Experience using a data visualisation tool to communicate insights effectively
• Background in growth, marketing or product analytics within a digitally focused business
• Ability to move beyond reporting into insight generation and recommendation
• Strong commercial awareness and understanding of business performance drivers
• Confident stakeholder management skills, with the ability to influence senior decision-makers
• Proactive mindset, with the ability to work in ambiguity and drive projects forward
• Experience analysing funnels, experiments, campaigns and customer behaviour

What They Offer

• Competitive salary and comprehensive benefits package
• Private health insurance and enhanced pension contributions
• Hybrid working with flexibility and work-from-anywhere options
• Professional development budget to support continued learning
• Generous annual leave allowance with additional entitlement over time
• A collaborative, high-performing culture with clear opportunities for progression

How to Apply
If you are a commercially minded analyst looking to make a tangible impact in a high-growth business, please apply with your CV.

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This is an role to be a part of paid media strategy within a fast growing digital environment. You will work across a mix of well recognised brands, driving performance through innovative campaigns while developing your expertise across broader digital channels.

The Company
They are a well established digital growth specialist that partners with a range of well known consumer and B2B brands. The business is known for its collaborative culture, strong analytical approach, and commitment to continuous learning. With a focus on delivering measurable outcomes, they combine strategy, media execution, and creative thinking to drive client success. The team environment encourages ownership, knowledge sharing, and professional growth.

The Role
You will lead the development and delivery of paid media strategies, owning campaign performance and client relationships end to end. Responsibilities include:

• Leading paid media strategy across paid search, social, and display
• Managing campaign planning, execution, testing, and optimisation
• Translating data into clear insights and actionable recommendations
• Owning client relationships and presenting to senior stakeholders
• Driving budget optimisation and performance improvements against KPIs
• Identifying new growth opportunities across accounts and channels
• Mentoring and developing junior team members
• Supporting cross channel strategy including analytics and conversion optimisation

Your Skills and Experience

• Hands on experience managing complex paid media campaigns
• Commercial understanding of performance marketing and digital strategy
• Confident working across multiple platforms such as Google Ads and paid social channels
• Strong analytical mindset with the ability to interpret and communicate data
• Experience managing client relationships and presenting insights
• Collaborative approach with the ability to mentor and support others
• Broader awareness of digital marketing including CRO, analytics, and creative

What They Offer

• Salary between 50,000 and 60,000
• Hybrid working model based in London
• Structured training and development opportunities
• Clear progression pathways and performance based growth
• Bonus scheme and additional benefits package
• Supportive and collaborative team environment

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Senior Analytics Manager
London based (2 days in office)
Up to 85k

They are a consumer-focused organisation investing in data, analytics, and decision intelligence to support commercial growth. As part of this investment, they are creating a dedicated analytics team focused on pricing, promotional effectiveness, product range optimisation, and store portfolio strategy.

The business is developing an analytics capability that combines commercial understanding with analytical techniques that deliver measurable outcomes. Analytics is positioned as a strategic partner, helping teams make informed decisions and identify opportunities for improvement.

The Role
You will lead the development of a new analytics capability, partnering with senior leaders to support key commercial decisions.
Key responsibilities include:

• Build and lead a commercial analytics team.
• Develop the roadmap and delivery approach for Range, Space, Price & Promotion Analytics.
• Partner with Buying, Merchandising, Retail, Marketing, Finance, and Supply Chain teams.
• Translate analytical outputs into practical business recommendations.
• Identify opportunities to improve pricing performance, promotional effectiveness, product range decisions, and store portfolio strategy.
• Support decision-making through insight, measurement frameworks, and analytical outputs.
• Work closely with Data Science, Data Engineering, and wider Analytics teams to deliver scalable solutions.
• Balance commercial priorities with analytical approaches that support business objectives.

Your Skills & Experience

• Commercial analytics experience within retail, ecommerce, consumer, or similarly fast-paced environments.
• Experience working with pricing, promotions, merchandising, trading, customer, or commercial analytics.
• Ability to engage senior stakeholders and support business decision-making through data and insight.
• SQL capability and experience working with large transactional datasets.
• Understanding of advanced analytics and data science methodologies and their application in commercial environments.
• Experience leading, mentoring, and developing analytics teams.
• Ability to work in evolving environments and define new ways of working.

What They Offer

• Competitive salary and comprehensive benefits package.
• Hybrid working model based in London.
• Opportunity to lead a newly established analytics function with visibility across the business.
• Exposure to senior leadership and strategic commercial initiatives.
• Career development opportunities within a growing Data & Analytics team.
• Access to modern data platforms and collaboration with Data Science and Engineering teams.

How to Apply
If you are interested in using analytics to support commercial decision-making and would like to learn more about this opportunity, please apply today.

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Data Analyst (FTC – 6 Months)
London or Oxford (Hybrid 2-3 days) | Up to £55,000

No sponsorship offered – must have full UK working rights

An exciting opportunity has arisen for a Data Analyst to join a highly data-driven organisation on an initial 6-month fixed-term contract. This role offers the chance to support a business-critical regulatory programme, working with large and complex datasets to deliver accurate analysis, reporting, and data extracts. If you thrive in a SQL-focused environment and enjoy working on high-impact projects where precision matters, this could be an excellent fit.

The Company

They are an established, technology-led financial services organisation with a strong emphasis on data and analytics. Operating within a regulated environment, they use data to support critical business decisions, customer outcomes, and compliance requirements.
Their analytics function works across the organisation, partnering with teams to provide insights, reporting, and operational support. Data plays a central role in their decision-making, creating an environment where analytical expertise is highly valued.

The Role

As a Data Analyst, you will join a collaborative analytics team supporting a major regulatory programme. This is a hands-on position focused on extracting, manipulating, and analysing data to support reporting, operational processes, and stakeholder requirements.

Key responsibilities include:

• Supporting a large-scale regulatory and customer remediation programme
• Writing, maintaining, and optimising SQL queries for data extraction and analysis
• Processing and fulfilling high volumes of data requests
• Producing accurate data extracts, reports, and management information
• Working with large and complex datasets to identify relevant information
• Ensuring data quality, accuracy, and auditability in all outputs
• Collaborating with stakeholders across analytics and wider business functions
• Supporting reporting requirements within a regulated environment

Your Skills & Experience
You will have:

• Strong commercial SQL experience with advanced data manipulation and querying skills
• Experience working with large datasets and complex extraction requests
• Excellent attention to detail and a highly accurate approach to analytical work
• Experience delivering reporting and data outputs to business stakeholders
• The ability to work effectively within a fast-paced, delivery-focused environment
• Availability to start within a reasonable timeframe

Desirable experience:

• Financial services experience
• Exposure to regulated or compliance-driven environments
• Experience working with complaints, regulatory, or customer remediation datasets
• Tableau or other dashboarding and visualisation tools

What They Offer

• Salary up to £55,000
• 6-month fixed-term contract
• Hybrid working with offices in London and Oxford
• Attendance in the office 2-3 days per week
• Flexibility to be based from either location
• Travel expenses covered when travelling between offices for business requirements
• Opportunity to work on a high-profile regulatory programme with significant business impact
• Exposure to senior stakeholders and a highly regarded analytics function

How to Apply

If you’re a SQL-focused Data Analyst looking for a high-impact opportunity within a data-driven organisation, please apply with your CV to learn more about the role and company.

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SVP, Head of Technology
Location: United States (Remote) – HQ in New York
Salary: Base up to $350k + 15% bonus + equity (total comp ~$500k)

This is a rare opportunity to lead a full Product and Technology transformation at a business redefining how AI is applied within digital products and customer workflows. Reporting directly to the CEO, you will shape strategy across Product, Engineering, Data, Design, QA, and Technology while helping build a genuinely AI-native operating model.

The Company
Our client is a private equity-backed technology business operating at the intersection of digital advertising, data, and artificial intelligence. They have an established platform, a strong customer base, and a leadership team committed to long-term innovation.

The organisation is entering a significant growth and transformation phase focused on building proprietary intelligence, modernising product development, and embedding AI throughout the business. With investment already secured, they are seeking an executive leader who can help define the next chapter of the company.

The Role
As SVP, Head of Product & Technology, you will own the vision, strategy, and execution across Product and Technology functions.

Key responsibilities include:

• Define and execute the Product and Technology strategy aligned to business objectives
• Lead Product, Engineering, Data, QA, Reliability, and Design teams
• Build and scale AI-enabled products, workflows, and operational capabilities
• Develop proprietary data assets and intelligence platforms that create competitive advantage
• Modernise technology architecture, engineering practices, and delivery processes
• Establish a high-performance operating model that balances innovation, quality, and efficiency
• Drive platform reliability, security, governance, and scalability
• Partner closely with executive stakeholders to prioritise technology investments and transformation initiatives
• Create clear metrics and reporting frameworks to demonstrate business value and transformation outcomes
• Present strategic updates, priorities, and ROI to senior leadership and board stakeholders

Your Skills & Experience

• Strong executive leadership experience across Product, Engineering, and Technology functions
• Experience leading large-scale transformation programmes within technology-driven businesses
• Commercial experience building or deploying AI, machine learning, generative AI, or agentic workflow solutions
• Strong understanding of cloud technologies, modern software engineering, data platforms, and system architecture
• Ability to translate business strategy into scalable technology and product roadmaps
• Experience managing cross-functional teams spanning Product, Engineering, Data, and Design
• Strong knowledge of data governance, analytics, and proprietary intellectual property development
• Comfortable operating within a private equity-backed or highly performance-focused environment
• Excellent stakeholder management skills with experience presenting to executive and board-level audiences
• Experience within AdTech, MarTech, digital media, SaaS, or data-intensive technology environments is highly beneficial

What They Offer

• Remote-first working environment
• Direct access to CEO and board-level decision making
• Opportunity to build and lead an AI-native Product & Technology organisation
• Significant influence over company strategy, investment decisions, and future growth
• A genuine opportunity to create lasting technology, data, and product impact

How to Apply
If you are an executive Product and Technology leader with a track record of driving transformation, AI adoption, and business growth, apply today to discuss this opportunity with Harnham.

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