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Senior Commercial Data Scientist – Consulting | New York | $150,000-$180,000

Location: Midtown Manhattan (Hybrid)

Salary: $150,000-$180,000 +bonus + benefits

Industry: Revenue Growth Consulting

Company: Confidential (via Harnham)

The Opportunity

Harnham is partnering with a confidential consulting firm that helps global organizations drive revenue through advanced analytics. They’re expanding their client-facing Data Science function and hiring a Senior Commercial Data Scientist to join a high-impact, high-visibility team.

This is not a back-office DS role – you’ll sit directly with consulting teams, present to senior stakeholders, and build models that shape sales, marketing, and customer strategy.

What You’ll Work On

• Predictive modeling & ML for revenue growth
• Customer health scoring & churn prediction
• Next-best-offer and spend forecasting
• ICP modeling & commercial segmentation
• Hands-on technical delivery + mentoring junior DS associates
• Partnering with consultants in client meetings and strategy discussions

Why This Role Stands Out

• Client-facing from day one – influence strategy, not just outputs
• High technical depth – build and interpret ML models end-to-end
• Strong career runway – opportunity to move into BD / pre-sales support within ~12 months
• Forward-looking environment – expansion into AI/agentic solutions planned
• Collaborative, meritocratic consulting culture blending DS + commercial consulting

Ideal Background

• 3-7 years in Data Science (commercial, consulting, or client-facing preferred)
• Strong Python skills; ML modeling expertise
• Quant degree (Math, Stats, Econ, CS, etc.); Master’s a plus
• Experience leading junior analysts/associates
• Excellent communication + stakeholder skills

Compensation & Setup

• Base salary: $150,000-$180,000 (DOE)
• Bonus %
• Hybrid in NYC
• Full benefits package

Interested?

Apply directly or reach out to Harnham for more details. This role offers a rare blend of deep technical ownership, client exposure, and strategic impact.

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VP of Data

Fintech

Hybrid in NYC area

$250,000 – $275,000 base + equity + benefits

THE COMPANY

Harnham is working with an innovative fintech that creates real economies in virtual worlds to help studios and creators embed frictionless payments and digital currencies.
They are looking for a VP of Data who will lead data strategy, owning everything from infrastructure to insights. The mission: turn raw data into a powerful engine for smarter decisions, faster operations, and bold product innovation-while keeping compliance rock solid.

RESPONSIBILITIES

• Own data strategy, roadmap and vision
• Instill data governance practices, driving governance standards for relevant financial regulations
• Lead data architecture – modernizing data ecosystem, warehouse, data lakes, ETL pipelines
• Lead the company’s data and machine learning strategy
• Partner with cross-functional departments and C-suite stakeholders (engineering, product, marketing, advertising)
• Manage data products – build & scale applications to automate processes
• Oversee business intelligence function – driving insights, dashboards and reports

SKILLS AND EXPERIENCE

• 10+ years in data roles, including 3+ years in leadership (VP/Director).
• Proven success in FinTech, payments, or regulated financial services.
• Expertise in data governance, quality, and risk management.
• Cloud data warehouses (Snowflake, BigQuery, Redshift).
• ETL/ELT, orchestration tools (Airflow, dbt), CI/CD for pipelines.
• BI tools (Looker, Tableau, Metabase), SQL & Python.
• AWS data stack (Redshift, Glue, S3) and Terraform.

Bonus

• Experience in crypto or gaming industries.
• Degree in Computer Science, Statistics, or related field.

BENEFITS

The compensation package contains a base salary, equity and a comprehensive benefits package.

HOW TO APPLY

Please register your interest by sending your CV via the Apply link on this page.

KEY TERMS

Data Science | Business Intelligence | BI | Engineering | Fintech | Production | Real Time | Gaming | Regulation | Python | Compliance | Regulatory | Startup | Executive | Data Governance | Data Architecture | Artificial Intelligence

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Head of Data Management

£85,000-£100,000 + Package
Hybrid – Nottingham (3 days a week)

A massive transformation is underway, and this business is looking for a data leader who’s ready to take the reins. This is a brand-new role with huge scope – the chance to rebuild how an organisation thinks about, governs, and uses its data from the ground up.

Reporting directly into the Director, you’ll lead a team of 12 (including four Managers) and take full ownership of data management, governance, and the full data lifecycle. This is a high-impact, highly visible position where you’ll be working closely with Senior Leadership, Technology, Risk and the CDO to drive real change across data quality, privacy and compliance.

THE ROLE

In this strategic, hands-on role, you will:

• Own and deliver the enterprise Data Management Strategy

• Lead data stewardship across analytical, operational and policy environments

• Evolve and mature data governance, data quality frameworks and risk processes

• Oversee the full data lifecycle – ensuring data is discoverable, trusted and well governed

• Partner with senior leaders, Risk, the DPO and Technology to meet regulatory standards

• Play a central role in a major enterprise-wide data transformation

TECHNICAL SKILLSET

• Strong experience with ETL, APIs and modern cloud data platforms

• Skilled in SQL and Python (automation a strong advantage)

• Knowledge of data quality tools (e.g. Informatica)

• Understanding of data governance frameworks, lifecycle management and architecture

• Experience working in regulated environments or data-risk heavy settings is a big plus

WHAT THEY’RE LOOKING FOR

• A proven people leader who has developed and managed high-performing teams

• Someone who has delivered data management or governance transformations

• Strong grasp of regulations and data policy (GDPR experience highly beneficial)

• Confident influencing senior stakeholders and simplifying complex data topics

• Suitable backgrounds: Data Management, Governance, Data Quality, Architecture,
  or technical leaders who’ve moved into strategic roles

WHY APPLY?

If you want real ownership, this is it. A rare opportunity to step into a senior leadership role with the autonomy to rewrite how data is governed across a major organisation. You’ll set the strategy, shape the roadmap and define the future of data for the business.

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HEAD OF PAID MEDIA
£60,000-£70,000 + BENEFITS
FOLKESTONE – 1-2x A MONTH

Please note: you must have full UK right to work and be able to commute to Folkestone three days per week.

ABOUT THE BUSINESS

This is a fast-growing paid digital agency working with an extensive mix of clients across retail, food delivery, travel, education, and more. The agency operates primarily on long-term retained partnerships but also supports short-term, high-impact campaigns when needed. With rapidly increasing demand and a strong commercial trajectory, the business is known for its integrated digital expertise across paid media, data, content, and digital PR.

This role supports an exceptionally broad client portfolio with around 40 active accounts, ranging from household-name brands to specialist sector organisations. Paid media budgets span from £5,000 per month through to more than £1 million, offering huge variety and strategic challenge.

THE TEAM

You’ll join the Paid Media team, working closely with specialists across digital PR, content, data, and account management. Account managers handle day-to-day client relationships, while this role provides the technical, analytical, and performance-driven paid media leadership.

You’ll report into the Director of Data and lead a team of five, including a senior lead and a manager who directly report into you, with 2-3 paid media executives beneath them. The environment is collaborative and fast-moving, with senior leadership maintaining close involvement and visibility across teams.

With the agency expanding quickly, this role is a backfill in a growing function – offering both stability and the excitement of building new capability.

THE ROLE

This is a hybrid role split evenly between hands-on delivery and strategic team leadership.

You’ll be responsible for driving the direction and development of the Paid Media function while ensuring high-quality execution across all client accounts. You’ll oversee campaigns, shape strategy, guide your team, and contribute commercial insights that influence broader performance and client growth.

Key Responsibilities:

• Leading a team of paid media specialists across search and social channels.
• Overseeing delivery of paid search and paid social activity, including strategic planning and hands-on support where needed.
• Owning performance KPIs across a large and diverse client portfolio.
• Developing paid media strategies across Google, Meta, Bing, TikTok, Instagram, and other major platforms.
• Providing commercial insight and identifying growth opportunities for clients.
• Ensuring high-quality measurement, reporting, and interpretation of conversion data.
• Collaborating with content, digital PR, data, and account management teams.
• Presenting performance updates and technical insights to clients in a clear, actionable way.
• Supporting the department’s growth and helping shape best-practice delivery processes.

SKILLS & EXPERIENCE REQUIRED

Essential:

• Strong technical expertise in paid search (Google Ads experience is a must).
• Experience in paid social highly beneficial.
• Proven leadership experience in a fast-paced agency environment.
• Ability to work across a wide range of budgets and client categories.
• Strong understanding of measurement, conversions, and performance analytics.
• Confident communicator capable of presenting to clients and influencing decision-making.
• Ability to balance strategic thinking with hands-on activation.

Desirable:

• Experience managing large-scale monthly budgets (£1M+).
• Exposure to working across both retained and short-term campaign models.
• Ability to thrive in a high-growth environment where processes are evolving.

WHY APPLY?

• Lead and shape the direction of a growing Paid Media team.
• Work across an exceptionally broad and varied client portfolio.
• Combine hands-on delivery with strategic leadership and commercial influence.
• Join a high-growth digital agency with strong cross-functional collaboration.
• Work closely with senior leadership in an environment that values innovation, data-driven decision-making, and continuous improvement.

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SENIOR DATA ANALYST – MARKETING SCIENCE

UP TO £65,000 + BENEFITS

LONDON – 4 DAYS PER WEEK IN HAMMERSMITH

Please note: you must have full UK right to work and be able to commute to Hammersmith four days per week.

ABOUT THE BUSINESS

This is a fast-growing digital media and subscription platform operating at scale across multiple markets. The business combines content, advertising, and subscription revenue models and is undergoing rapid growth in its analytics capability. With a strong emphasis on data-driven decision-making, the company is investing heavily in measurement frameworks that enable smarter spending, sharper marketing effectiveness, and sustainable subscriber growth.

THE TEAM

You’ll join the newly established Marketing Analytics function; a specialist group focused on advanced measurement, marketing mix modelling, experimentation, and campaign performance evaluation. Sitting within the wider Analytics organisation (which includes content analytics, local analytics, and subscriber growth), this team partners closely with global stakeholders and plays a pivotal role in shaping how marketing investment decisions are made.

You’ll work closely with performance marketing, brand marketing, research, finance, and an internal analytics team based in the US, while reporting directly into the Head of Marketing Analytics.

The environment is young, collaborative, and still being shaped, offering the rare opportunity to define processes, build new frameworks, and pave the way for best-in-class marketing measurement.

THE ROLE

This is a hands-on and highly strategic MMM role, responsible for building, refining, and operationalising measurement models that drive smarter marketing decisions.

You’ll be a key partner in helping the business understand how campaigns perform, what drives incremental growth, and how budgets should be allocated across channels. This is far more than running models – you’ll play a central part in turning insights into real-world decisions.

Key responsibilities include:

• Building, maintaining, and evolving MMM models to understand the impact of marketing on subscriber growth and engagement.
• Supporting the transition from MMM to complementary approaches such as geo-testing, incrementality testing, and A/B experimentation.
• Designing creative test-and-learn frameworks to measure campaign performance more accurately.
• Working closely with marketing teams to ensure insights translate into clear recommendations and implemented actions.
• Partnering with commercial stakeholders to assess forecast accuracy and support campaign planning.
• Collaborating with performance, brand, and finance teams to communicate findings and influence investment decisions.
• Contributing to the development of measurement methodologies across a scaling analytics organisation.

SKILLS & EXPERIENCE REQUIRED

Essential:

• Proven experience in Marketing Mix Modelling and marketing effectiveness frameworks.
• Strong SQL skills (high bar – candidates must be comfortable scoring 10-11 out of 15 on SQL assessments).
• Hands-on experience with R or Python for statistical modelling.
• Strong experimentation background (A/B testing, geo-testing, incrementality).
• Excellent communication skills – able to simplify complex models and influence senior, non-technical stakeholders.
• Ability to translate insights into actionable recommendations and ensure follow-through.

Desirable:

• Experience working with commercial stakeholders in media, advertising, or subscription environments.
• Exposure to international teams or matrixed organisations.
• Ability to build credibility quickly in a fast-paced, growing analytics function.

WHY APPLY?

• Shape a new marketing analytics function from the ground up.
• Work across a broad and influential stakeholder group, including commercial, media, brand, and finance teams.
• Build advanced MMM and experimentation frameworks that directly influence budget allocation and subscriber growth.
• Join a young, high-growth business where analytics is deeply valued and still evolving – giving you the chance to define the blueprint going forward.

To Apply for this Job Click Here

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SENIOR DIGITAL MARKETING & WEB ANALYTICS MANAGER
HYBRID – LONDON 2X A WEEK
SALARY – UP TO £65,000

Please note: you must have full right to work and be a UK resident.

THE COMPANY
A leading London-based private healthcare provider is looking for a Digital Marketing & Website Manager to take full ownership of their digital presence. With a brand-new website launching early 2025, this is a high-impact role for someone who loves combining hands-on digital execution with technical website management. You’ll work across marketing, product and development teams, manage agency partners, and drive performance across all digital channels.

THE ROLE
Website Management & Optimisation

• Own the website end-to-end (Contentful).
• Lead UAT, regression testing and analytics setup.
• Analyse performance, run A/B tests and drive CRO.
• Collaborate with product and dev teams on UX/functionality improvements.

Digital Marketing Delivery

• Manage SEO, PPC, paid social and web agencies.
• Deliver campaigns across paid and organic channels.
• Shape user journeys and support broader marketing strategy.

Analytics & Reporting

• Use GA4, GTM, HubSpot and Hotjar to track performance.
• Build dashboards, tagging frameworks and conversion reporting.
• Provide clear, actionable insights on spend and results.

Ownership & Collaboration

• Confidently work with senior stakeholders.
• Proactive, ideas-led and able to run with projects from day one.

What They’re Looking For

• Digital Marketing and web management experience
• Strong technical skills in website management & analytics.
• Comfortable managing agencies and cross-functional teams.
• Experience with Contentful, GA4, GTM, HubSpot, Hotjar, A/B testing.
• Service-sector background helpful (healthcare not essential).
• Confident, data-driven, and hands-on.

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To Apply for this Job Click Here

PRODUCT DATA ANALYST / SCIENTIST

UP TO £80,000

HYBRID – LONDON 2x PER WEEK + 1x MONTHLY TEAM TRAVEL

*Please note, you must be a UK resident and citizen to apply*

THE COMPANY

Backed by private equity, this fast-growing consumer technology business is on a mission to become more product-focused and deliver greater personalisation for its users. With strong leadership and exciting growth plans, they’re now looking for a senior-level Product Data Analyst/Scientist to help shape product strategy and deliver actionable insights.

THE ROLE

As a Product Data Analyst/Scientist, you will:

• Own and drive product analytics, focusing on user behaviour and personalisation.
• Deliver insights that directly influence product strategy and experimentation.
• Build and maintain dashboards to track product performance and user engagement.
• Partner with stakeholders across product and analytics to communicate insights effectively.
• Support the business in becoming more data-driven, shaping commercial and product decisions.

YOUR SKILLS AND EXPERIENCE

• Experience in product analytics, within B2C consumer tech businesses
• Strong SQL skills essential.
• Proficiency with data visualisation tools (Looker preferred, open to others).
• Experience with Python desirable.
• Product analytics expertise: experimentation, dashboarding, and driving product strategy.
• Excellent communication and stakeholder management skills.
• Experience influencing product roadmaps and delivering commercial impact.

BENEFITS

• Opportunity to influence product strategy in a PE-backed, high-growth business.
• Work closely with senior leadership, including the Director of Analytics.
• Competitive salary plus benefits.

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SENIOR CUSTOMER ANALYST – LOYALTY

UP TO £70,000 + BONUS
LONDON – 2 DAYS A WEEK IN OFFICE

Please note: you must have full UK right to work and be able to commute to central London twice per week.

ABOUT THE BUSINESS

This company is a leading global online food ordering marketplace, connecting millions of consumers with a vast network of restaurant partners. In the UK, the platform has grown into a household name, facilitating thousands of orders daily across a diverse range of cuisines. Beyond food delivery, the business supports restaurants with data-driven insights, pricing optimisation, and promotional strategies, ensuring sustainable partner growth and improved customer experiences.

THE TEAM

You’ll join the Customer Analytics & Loyalty function – a highly data-led team sitting within the wider Analytics organisation. Reporting into a Senior Manager, you’ll collaborate closely with experts across customer analytics, pricing, and promotions. The wider analytics team is led by the Director of Analytics, with a strong track record in leveraging insight to shape customer-centric decisions. The environment is collaborative, fast-moving, and intellectually curious, perfect for someone who thrives at the intersection of strategy, analytics, and customer experience.

THE ROLE

This is a strategic and proposition-led position, focused on evolving and delivering the loyalty vision for one of the UK’s most recognisable digital brands.

You’ll define how the business rewards and retains customers, transforming its current offering into a best-in-class loyalty proposition that drives engagement, repeat purchases, and customer lifetime value.

Key responsibilities include:

• Developing and owning the loyalty strategy, evolving the existing proposition into a competitive, tiered rewards programme.
• Building and managing a Single Customer View (SCV) to enable personalised, data-driven engagement.
• Using customer insight and data to recommend and deliver loyalty improvements across tiers, rewards, and experience.
• Partnering cross-functionally with marketing, data, CRM, and global teams to deliver and measure loyalty initiatives.
• Leading projects such as loyalty redesigns, customer value modelling, and competitor benchmarking.
• Feeding insights and success frameworks into global markets for adoption and scaling.

SKILLS & EXPERIENCE REQUIRED

• Proven experience in loyalty, CRM, or customer engagement strategy.
• Strong analytical foundation, with hands-on SQL skills and experience with dashboarding tools (e.g. Looker, Tableau, or Power BI).
• Strategic thinker with the ability to interpret data, shape propositions, and influence senior stakeholders.
• Experience working cross-functionally and/or in international environments.
• Excellent communication and presentation skills.

Desirable:

• Experience with Python for statistical analysis.
• Background in A/B testing design and evaluation.
• Familiarity with customer lifetime value modelling and loyalty analytics frameworks.

WHY APPLY?

• Play a leading role in shaping the loyalty strategy of a globally recognised tech brand.
• Work with rich customer data to design programmes that drive real behaviour change.
• Join a collaborative, data-led team that values innovation and experimentation.

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SENIOR CUSTOMER EXPERIENCE MANAGER
UP TO £70,000 + BONUS
LONDON – 2 DAYS A WEEK IN OFFICE

Please note: you must have full UK right to work and be able to commute to central London twice per week.

ABOUT THE BUSINESS
This global lifestyle organisation is undergoing a major transformation of its digital customer experience, investing heavily in modernising journeys, personalisation, and product optimisation across its ecommerce platforms. Operating internationally, the business is well-established yet highly ambitious, with a growing focus on elevating the end-to-end experience across all digital touchpoints.

Customer Experience has recently been repositioned as a standalone strategic function, responsible for shaping how millions of customers browse, discover, purchase, and engage online.

THE TEAM
You’ll join the Customer Experience team, reporting into a Director who leads global and regional CX strategy. The team partners closely with Product, Technology, UX, Trading, and Analytics to identify friction, define improvements, and deliver best-in-class digital journeys.

You will lead two experienced managers, overseeing optimisation, site features, internal search, journey enhancements, and A/B testing – supported by a wider network of analysts, UX designers, and engineering teams.
The digital product organisation is structured into four customer flow areas: Inspiration, Discovery, Cart & Checkout, and Post-Purchase. You’ll own 1-2 of these streams, representing business needs and helping shape the roadmap.

THE ROLE
This is a senior, hands-on position responsible for elevating the digital customer experience across key product streams. You’ll combine user insight, experimentation, and commercial awareness to deliver meaningful improvements to journeys, features, and site performance.
You will play a central role in ideation, requirements gathering, testing, UAT, and post-launch validation – partnering with Tech, Product, UX, and global/regional stakeholders to bring enhancements to life.

Key responsibilities include:
Customer Journey & Optimisation

• Own end-to-end CX for selected digital product areas.
• Identify friction points and champion solutions with Product/Tech teams.
• Ensure site functionality, features, and promotional components perform as intended.
• Represent the business throughout discovery, design reviews, and release cycles.

Data & Voice of Customer

• Analyse NPS, qualitative feedback, and digital metrics to surface issues and opportunities.
• Deliver clear, data-led insights on customer impact and commercial performance.
• Collaborate with analytics to influence content, merchandising, and product priorities.

Experimentation & Testing

• Lead the A/B testing programme across journeys and features.
• Review UX designs and create robust business requirements for enhancements.
• Oversee UAT, QA, and post-launch validation of new features.
• Partner across UX, engineering, and analytics to drive a structured optimisation roadmap.

Leadership & Collaboration

• Manage and develop two managers plus their supporting teams.
• Confidently challenge and influence senior stakeholders at global and regional levels.
• Align CX efforts with Product, Trading, UX, CI/Analytics, and other cross-functional groups.

SKILLS & EXPERIENCE REQUIRED

• Strong digital or ecommerce background
• Proven experience delivering journey improvements, A/B tests, and product optimisations.
• Deep understanding of digital CX principles and high-quality user journeys.
• Confident communicator able to influence, challenge, and guide stakeholders.
• Hands-on experience with experimentation platforms, CRO tools, analytics, UAT, and VoC insight.
• People management experience with a focus on coaching, collaboration, and team development.

WHY APPLY?

• Drive the digital customer experience for a globally recognised consumer brand.
• Own meaningful product streams with the autonomy to shape their direction.
• Lead talented managers while influencing senior stakeholders across regions.
• Join a forward-thinking, digitally focused environment where optimisation, experimentation, and continuous improvement are at the heart of decision-making.

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Head of Paid Media

£50,000-£70,000 * Hybrid (Kent-based agency) * Full-time

A fast-growing digital agency is looking for a Head of Paid Media to lead a high-performing team and drive paid search & social strategy across a diverse client portfolio.

This role is ideal for an experienced paid media leader who enjoys combining hands-on delivery with team management, and who’s confident owning performance, strategy and client communication.

The Role

This position is split roughly 50/50 between team leadership and campaign delivery.

You will:

• Lead and develop a paid media team (senior, manager and execs).

• Oversee strategy and performance across 40+ active accounts.

• Own key KPIs and ensure campaigns deliver measurable commercial outcomes.

• Work across paid search and paid social channels – Google Ads (must-have), Bing, Meta, TikTok, Instagram and more.

• Get hands-on where needed with execution, optimisation and troubleshooting.

• Partner with account management, data, content and digital PR teams to drive results.

• Communicate technical insights, performance updates and recommendations to clients.

• Make proactive commercial observations and contribute to wider growth initiatives.

Budgets vary significantly – from £5K per month to £1M+ – offering strong variety and strategic challenge.

About You

• Strong technical background in paid search – Google Ads expertise is essential.

• Experience across paid social platforms is highly beneficial.

• Comfortable leading teams in a fast-paced agency environment.

• Confident managing both enterprise-level and smaller campaigns.

• Data-literate and able to interpret performance, measurement and conversions.

• Able to balance strategic thinking with hands-on delivery.

Location & Working Style

• Ideally 3 days per week in the Kent office (55 minutes from St Pancras).

• For exceptional candidates, remote-first arrangements are possible with 1-2 office visits per month for key meetings.

Interview Process

2-3 stages:

1. Introductory interview with the hiring lead.

2. In-person or virtual interview with senior leadership, including a scenario-based task (e.g., “How is AI changing paid search?”).

Find out more and apply via the link below.

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