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Role: Data Engineering Manager
Salary: £110,000 – £120,000 + 10% bonus + share options
Location: Central London – 1 day per week in the office (Hybrid)

Our client, a fast-growing product-led business in the insurance and financial services sector, is looking for a Data Engineering Manager/Head of Data Engineering to lead and scale their data team. The company leverages real-world behavioural and location data to power next-generation insights for underwriting, credit risk, and product innovation.

You’ll define the data platform strategy, modernise infrastructure, and enable large-scale data processing to support analytics and machine learning use cases. Leading a team of four Data Engineers, you’ll combine strategic vision with hands-on technical leadership in a fast-paced, high-growth environment.

The role will involve:

• Defining and delivering the data engineering roadmap
• Architecting and modernising data platforms for scale and reliability
• Building pipelines for large-scale behavioural and GPS data
• Driving best practices across CI/CD, infrastructure-as-code, and governance
• Mentoring and growing a high-performing team

What you’ll bring:

• 5+ years in data engineering, with 2+ years in a leadership role
• 60% hands-on technically/40% hands-off leadership and strategy
• Proven experience designing scalable data architectures and pipelines
• Strong Python, SQL, and experience with tools such as Airflow, dbt, and Spark
• Cloud expertise (AWS preferred), with Docker/Terraform
• A track record of delivering in fast-paced, scale-up environments

Nice to have:

• Experience with streaming pipelines, MLOps, or modern data architectures

This is a great opportunity to join a well-funded, high-growth business where you’ll shape data strategy, build modern infrastructure, and directly influence product innovation at scale.

Apply today or get in touch for more details.

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CRO DIGITAL EXPERIENCE LEAD
THEALE – 3X A WEEK

Please note, this company is unable to sponsor, and you must be a UK resident to apply

THE COMPANY

A well-established British retailer and distributor within the direct-to-consumer space is growing its digital performance function. Known for its strong brand presence and customer-focused approach, the business offers a curated product range across several well-known platforms, including web and mobile.

As part of a wider digital transformation, the business is investing in building out its customer experience and optimisation capabilities across multiple brands.

THE ROLE

This is a newly created role with full ownership of Conversion Rate Optimisation (CRO) strategy across digital platforms. You’ll work closely with stakeholders to analyse user behaviour, identify pain points, and develop data-driven strategies to enhance customer journeys.

This role is ideal for someone who enjoys getting into the data using tools like Fullstory or Hotjar, spotting opportunities, solving problems, and executing meaningful improvements. You won’t be building tests yourself but should be comfortable with experimentation principles and able to troubleshoot where needed.

Over time, the goal is to bring more capability in-house, reducing dependency on agencies and making CRO a central function within the business.

SKILLS + EXPERIENCE

• Proven experience in CRO – any industry background welcome
• Strong understanding of customer journeys, UX principles, and digital performance
• Experience with behavioural analytics tools such as Fullstory, Hotjar, GA4
• Strategic thinker who’s hands-on and passionate about optimisation
• Confident in presenting ideas, insights, and results to senior stakeholders
• Strong interest in user experience and digital problem-solving
• Ideally some mentoring or leadership exposure, though not essential

HOW TO APPLY

If you’re excited about owning CRO strategy and making a tangible impact, apply now by sending your CV via the link below. The business is looking for someone to start by September, so candidates with shorter notice periods will be prioritised.

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PRINCIPAL ECONOMETRICIAN
£60,000 – £70,000 + BONUS
HYBRID – WEST LONDON – 3X A WEEK

Please note, this company is unable to offer sponsorship at this time and you must be a UK resident

THE COMPANY

This leading entertainment and connectivity brand runs one of the largest client-side Econometrics teams in the UK, with over 30 specialists across Europe. With significant annual marketing investment, the team plays a pivotal role in understanding the impact of advertising across multiple business areas and driving both short-term ROI and long-term brand growth.

THE ROLE

This Principal Econometrician position is a new hire within the team, created to support the growing partnership work in the broadband and mobile space. You’ll manage and mentor a small team (2 Econometricians + 2 Seniors), while owning projects end-to-end, from scoping through to delivering insights back to the business.

Key responsibilities include:

• Leading MMM projects with a focus on broadband and mobile campaigns.
• Working cross-functionally with stakeholders to evaluate media effectiveness and commercial performance.
• Driving insights to measure how significant marketing investment influences brand emotion, ROI, and growth.
• Providing mentoring, guidance, and oversight of junior team members.

SKILLS + EXPERIENCE

• Experience in Marketing Mix Modelling / Econometrics.
• Hands-on technical capability (experience in R/Python/SQL or equivalent).
• Proven ability to deliver end-to-end econometrics projects.
• Experience mentoring or managing junior team members.
• Strong stakeholder engagement and presentation skills.

HOW TO APPLY

If this sounds like the role for you, swiftly send over your CV to Izzi at Harnham by using the link below.

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DIGITAL PRODUCT LEAD

UP TO £80,000
HYBRID – 4X PER WEEK LONDON

Please note, the company is unable to offer sponsorship and you must be a UK resident to apply

COMPANY

This company hosts premium private schools, operating globally and educating over 80,000 students. The group is undergoing rapid growth, building new schools from scratch, acquiring others, and investing in high-performance, scalable digital infrastructure.

THE ROLE

This is a strategic digital leadership role. You’ll take full ownership of the platform, ensuring it performs commercially, scales globally, and integrates CRM, CRO, SEO, and emerging AI-powered capabilities.

Less about day-to-day execution, this position focuses on product thinking, strategic ownership, and cross-functional leadership. You’ll be instrumental in:

• Developing and connecting digital propositions across web content, onboarding, and user journeys
• Driving the roadmap for AI adoption within the web function
• Ensuring performance, scalability, and compliance across a global ecosystem

SKILLS

• Strong experience in digital or web product management
• A track record across CRM, CRO, SEO, and digital platforms
• Experience building and delivering roadmaps
• Comfort leading teams and stakeholders without needing to be hands-on
• A passion for AI innovation, even if not technical
• High attention to UX, performance, and conversion metrics

Bonus if you’ve worked in:

• Retail, agency, or PE-backed businesses
• Fast-growth, marketing-led environments
• A global or multi-brand setup
• Performance-driven digital teams

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Growth Analyst – 12-month FTC

Up to £70,000
London – Hybrid (2 days/week in office)

*Please note, the company is unable to offer sponsorship and you must be a UK resident to apply*

Company

This company is a global leader in interactive audio for children, with millions of audio devices and figurines sold worldwide. Their award-winning, screen-free system is transforming how kids play and learn independently. Available in over 100 countries and multiple languages, their expanding range of products continues to inspire imagination and support meaningful, tech-enabled play.

The Role

They are looking for an ambitious and motivated Marketing & Growth Data Analyst to join the UK team and help build out their analytic capabilities. You’ll also be part of the global Data & Analytics unit, giving you the opportunity to work on scalable data products, collaborate with international colleagues, and expand your expertise.

This is a hands-on analysis role where you’ll move seamlessly from pulling and manipulating data to producing clear, actionable insights for the UK Growth and Marketing teams. You’ll help monitor performance, understand customer behaviour, evaluate campaigns, and contribute to both tactical and strategic decision-making.

You’ll split your time roughly 60% on UK-focused work and 40% on global collaboration, creating local insights while helping to shape global dashboards and reporting tools.

Key Responsibilities

• Analysis & Insight – Conduct deep-dive analysis into marketing performance, customer acquisition, retention, and lifetime value. Go beyond “what happened” to explain “why” and recommend “what next.”
• Campaign Impact Assessment – Evaluate promotions and experiments to determine both immediate and long-term effects on customer spend and retention.
• SQL Data Extraction & Manipulation – Pull, join, and transform data from Snowflake and other sources, working with data marts and dbt models.
• Data Visualisation – Create clear, compelling Tableau dashboards and reports for stakeholders at all levels.
• Marketing KPI Tracking – Support the marketing team in measuring key performance metrics (e.g., acquisition cost, retention rates, channel ROI).
• Proactive Opportunity Spotting – Identify trends, anomalies, or risks in the data and bring them to the attention of the business without waiting for a request.
• Stakeholder Collaboration – Work closely with marketing, sales, and growth teams in the UK, while engaging with global analytics peers to align on best practices and standards.
• Enablement & Self-Service – Support colleagues in becoming more self-sufficient in accessing and interpreting data.

Skills and Experience

• Experience in data analytics roles, ideally in marketing, growth, or e-commerce environments.
• Advanced SQL skills for data extraction and manipulation.
• Experience with Snowflake, dbt, and Tableau (or similar visualisation tools).
• A strong statistical foundation and ability to apply the right analytical methods.
• Understanding of marketing metrics such as CAC, LTV, retention, and channel ROI.
• The ability to work independently, structure your own analysis, and deliver actionable insights.
• Strong communication skills to explain complex findings clearly to non-technical stakeholders.
• A collaborative mindset and a proactive, curious approach to solving problems.

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ANALYTICS MANAGER
£65,000 + 10% BONUS
HYBRID – LONDON (3 DAYS A WEEK)

Please note: this company is unable to offer sponsorship for this role. You must be based in the UK and have the right to work.

THE COMPANY

This global live entertainment business operates nearly 50 iconic venues across the UK, US, and Europe – from historic West End theatres to Broadway and Berlin. With a huge customer base and millions of ticket sales annually, they’re building out a high-impact analytics function to drive smarter marketing, better customer experiences, and stronger business outcomes.

The culture is grown-up, fast-moving, and collaborative. You’ll be joining a team that’s expanding rapidly to meet global demand, with direct exposure to decision-makers and meaningful scope to shape the analytics strategy in the UK.

THE ROLE

This is a key leadership role in the UK analytics function, managing three direct reports across data science, BI and analysis. While you won’t be deep in the code every day, you’ll be deeply embedded in both the business and the data – prioritising workstreams, guiding delivery, and supporting the team as they scale.

You’ll partner closely with marketing, CRM and performance teams, translating business needs into clear data projects and helping shape how marketing impact is measured globally. You’ll also collaborate with the US analytics team and newly appointed Head of Analytics to align strategy across regions; with your focus squarely on the UK.

Projects will centre around email and app marketing, with a big focus on MMM, recommender systems, and customer modelling. MMM will be the priority for the next 12 months.

DAY TO DAY

• Lead UK analytics team (BI Developer, Data Analyst, Data Scientist)

• Oversee team priorities, coaching, and delivery standards

• Translate business questions into technical project scopes

• Champion analytics best practices across teams

• Support marketing teams with data-driven decision-making

• Collaborate with global analytics leads on shared initiatives

• Oversee and contribute to marketing measurement projects

• Focus areas: MMM, recommender systems, lift testing, propensity modelling

• Rough split: ~75% leadership / 25% strategic hands-on guidance

SKILLS + EXPERIENCE

Must haves:

• Strong background in marketing or performance analytics

• Experience leading or managing analytics teams

• Stakeholder management and communication skills

• Familiarity with MMM, customer modelling, and related techniques

• SQL, Python or R proficiency

Nice to have:

• Experience in live entertainment, ticketing, or consumer-focused businesses

• Familiarity with CDPs or marketing automation platforms

• Passion for theatre, live events, or the arts

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JUNIOR ANALYST

£28,000 – £35,000

HYBRID – LONDON – 2X A WEEK

*Please note, this company is unable to offer sponsorship at this time and you must be a UK resident*

THE COMPANY

This small but growing Digital agency works with brands to transform their data, making it accessible for the wider business. They provide meaningful and commercially viable insights through reports and dashboards.

THE ROLE

You’ll provide insight into the Digital performance for brands; monitoring, reporting and dashboarding. You’ll be supported in your learning and development and get the chance to be client-facing. You’ll also get involved in advanced modelling projects such as incrementality testing, market mix modelling and propensity modelling.

SKILLS + EXPERIENCE

Must haves:

• Web analytics experience – Google Analytics 4 or Adobe Analytics
• Some SQL or Python experience in a working environment e.g. internships or placement years
• STEM degree with a minimum of a 2:1
• Dashboarding/reporting experience – any tool, e.g. Power BI, Tableau, Looker or equivalent

HOW TO APPLY

If this sounds like the role for you, swiftly send over your CV to Izzi at Harnham by using the link below.

KEY TERMS

IBM, Coremetrics, Google Analytics, GA, Omniture, SiteCatalyst, Adobe Analytics, Analyst, Web, Digital, Online, Website, Financial Services, Finance, A/B, Test, Split, Multivariate, MVT, Tracking, Code, Tagging, Tags, Insight, Client, Agency, Management, Strategy, CRO, Conversion, Optimisation, Optimizely, Test and Target, Adobe Target, Maxymiser, VWO, Visual Website Optimiser, Tag Manager, Tag-manager, Tagging, Tag Management, Set Up Tags, Manage Tags, Manage Tagging, Managing Tags, Managing Tagging, Setting Up Tags, Analytics Tracking, Implement Tags, Implement Tagging, Tagging Implementation, Tag Implementation, Tracking Implementation, Analytics Implementation

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SENIOR DATA ANALYTICS ADVISOR (12-MONTH FTC)

UP TO £65,000 + BONUS
HYBRID – LONDON – 2X A WEEK

Please note, the company is unable to offer sponsorship and you must be a UK resident to apply

Company

This organisation is a leading trade body representing the UK insurance and long-term savings industry. Acting as the collective voice of its members, it plays a crucial role in shaping policy, supporting innovation, and providing authoritative data and insight. It’s recognised for its collaborative culture, approachable leadership team, and meaningful industry impact – from supporting members through the pandemic to leading on complex, long-term issues that affect millions of customers.

The Role

They are seeking a Senior Data Analytics Advisor to join the analytics function on a 12-month fixed-term contract. The role blends hands-on analysis with significant stakeholder engagement, supporting a wide range of projects from market forecasting and policy development to diversity and inclusion reporting.

You’ll be responsible for collecting, analysing, and presenting data from member organisations and third-party sources, providing actionable insights that inform policy, communications, and industry decisions.

This is a highly collaborative role where you’ll work with colleagues across policy, media, and research teams, liaise with external stakeholders, and occasionally present insights in committee meetings. It’s a fantastic opportunity to influence industry thinking while sharpening your technical and communication skills.

Key Responsibilities

• Data Collection & Management – Gather and validate data from member firms, surveys, and third-party sources (e.g., market research, ONS, financial reports).
• Analysis & Insight – Use Excel and SQL to analyse data, identify trends, and generate actionable insights for both internal and external stakeholders.
• Reporting & Visualisation – Build clear, compelling dashboards and reports in Power BI (or similar) to share findings with colleagues and members.
• Stakeholder Engagement – Collaborate with member firms, policy teams, and external partners to ensure robust data collection and effective communication of results.
• Project Support – Contribute to key initiatives such as annual diversity and inclusion data collection, ad-hoc policy projects, and media team data requests.
• Market Intelligence – Support forecasting and subscriber identification projects, helping the organisation stay ahead of industry trends.

Skills and Experience

Must-haves:

• Strong SQL and Excel skills, with proven experience handling complex datasets.
• Proficiency in a data visualisation tool (Power BI strongly preferred but open to any).
• Experience working with third-party/market research datasets and survey data.
• Ability to create meaningful insights from both internal and external data sources.
• Excellent communication and stakeholder management skills.

Nice-to-haves:

• Background in insurance, financial services, or market research.
• Experience with Python for statistical analysis.
• Advanced Power BI skills.

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DIRECTOR OF CUSTOMER MARKETING
UP TO £150,000
HYBRID – 2X A WEEK LONDON

Please note, the company is unable to offer sponsorship and you must be a UK resident to apply

COMPANY

This organisation is an established media and publishing brand, operating at scale with a global audience. Having successfully built a strong subscription base, it is now moving into its next strategic phase: creator-led, membership-driven models. The business is investing heavily in customer engagement, brand differentiation, and community-building as a way to expand its commercial reach and deepen loyalty.

THE ROLE

This is a senior customer marketing leadership role, taking ownership of customer strategy during a critical shift in direction. The position goes beyond reader revenue to encompass membership, partnerships, and creator-led engagement models.

You’ll be responsible for:

• Defining and executing customer propositions that increase engagement, differentiation, and brand value.
• Driving short-term wins in subscriptions via perks, partnerships, and campaigns.
• Building and scaling longer-term creator- and community-led membership models.
• Developing strategies to personalise and segment customer engagement at scale.
• Leading a team of 12 (including direct reports in growth and retention).

This is both a strategic and delivery-focused role-balancing long-term vision with rapid innovation and results.

SKILLS

Core Experience

• Proven ability to build customer propositions and commercial products.
• Track record in creating and executing marketing campaigns focused on customer communities.
• Strong understanding of data, segmentation, and marketing technology.
• Experience in channel evaluation and optimisation.
• Ability to deliver personalisation strategies and leverage commercial partnerships.

Personal Qualities

• Resilient, creative, and innovative.
• Comfortable generating and testing ideas quickly.
• Strategic thinker who can balance pace (6 weeks vs 6 months) with long-term goals.
• Able to hold firm on strategy amidst competing internal priorities.
• Ideally brings experience outside of traditional publishing.

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SENIOR CRM MANAGER
UP TO £60,000
HYBRID – LONDON, 3 DAYS A WEEK

Please note, the company is unable to offer sponsorship and you must be a UK resident to apply

Company

This growing retention agency is dedicated to helping ambitious ecommerce brands build lasting customer relationships. With a specialist focus on CRM and email marketing, the team of 11 partners with direct-to-consumer brands to deliver high-impact lifecycle strategies. They work exclusively with Klaviyo and Shopify, positioning themselves as true experts in their niche. Collaboration, accountability, and culture are at the heart of the business. With a new East London office and a people-first mindset, they’re proud of their vibrant, social environment and growth-focused outlook.

The Role

This agency is seeking a CRM leader to take ownership of retention strategy across a diverse client portfolio. You’ll manage and mentor a team of three CRM specialists, act as the go-to expert on Klaviyo, and oversee CRM execution across up to 20 ecommerce accounts.

This is a hands-on leadership role where you’ll partner directly with clients to elevate their retention performance, while balancing team management, client strategy, and campaign optimisation.

Key Responsibilities:

• Lead and mentor a team of 3 CRM specialists, ensuring consistent delivery across accounts.
• Act as the strategic lead for client CRM/retention programmes, advising on lifecycle strategies and optimisation.
• Oversee all CRM briefs and execution across 20+ client accounts.
• Own and report on CRM KPIs across accounts, ensuring measurable client growth.
• Drive campaign testing, measurement, and optimisation.
• Collaborate with account managers, designers, and copywriters to deliver best-in-class campaigns.

Role Requirements

Must-haves:

• Strong Klaviyo expertise and enthusiasm (active in the community, e.g. events).
• Proven experience with ecommerce retention, ideally within Shopify.
• CRM leadership experience (managing at least one direct report).
• Strategic background in CRM, ideally across multiple accounts.
• Strong time management skills and ability to balance leadership with hands-on strategy.

Nice-to-haves:

• Agency background or experience in a fast-growth ecommerce brand.
• Ambition to step into a Head of CRM role, with a roadmap for progression in place.

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