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SENIOR MARTECH MANAGER

UP TO £80,000 + BENEFITS

LONDON

THE ROLE

As a Senior MarTech Manager, you will play a pivotal role in leading on MarTech across this leading retailer, being responsible for vendor selection, implementation and migration, including working with cutting edge technology in the MarTech space.

Key responsibilities include:

• Providing expert advice on CDP strategies to meet client objectives.
• Engaging with stakeholders to understand their business goals and challenges.
• Translating complex technical solutions into clear, actionable insights for non-technical stakeholders.
• Developing tailored strategies to enhance digital marketing and customer engagement.
• Strategy development for configuration and optimisation of enterprise CDPs
• Setting up new CDP activations and optimizing existing implementations.
• Ensuring the successful delivery of CDP projects
• Working closely with clients to deliver customised solutions
• Staying informed about the latest MarTech trends and technologies to drive continuous improvement.

YOUR SKILLS AND EXPERIENCE

The successful candidate will bring:

• Proven experience in a MarTech role
• Hands-on expertise in enterprise CDPs and CRM / Martech systems
• A strong understanding of digital marketing, data integration, and customer journey optimisation.
• Demonstrated success in delivering CDP projects that generate tangible business outcomes.
• Exceptional communication and client-facing skills, with the ability to translate technical concepts into actionable business insights.
• A proactive, collaborative approach and the ability to thrive in a hybrid working environment.
• A keen interest in staying up-to-date with the rapidly evolving MarTech landscape.

THE BENEFITS

• Competitive salary of up to £80,000
• Comprehensive benefits package
• Hybrid working model (2 days in office per week)

HOW TO APPLY

If you’re an experienced MarTech expert ready to take the next step in your career, we’d love to hear from you! Please send your CV to Dylan Butcher via the Apply link on this page.

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SENIOR CREDIT RISK STRATEGY ANALYST

£40-60,000 depending on experience

LONDON

THE COMPANY

This role is with an exciting credit start-up who have grown rapidly and are continuing to expand. This is an exciting opportunity to join a fast-paced and dynamic environment where you can have true ownership over your work and a hands-on, analytical role, focusing on driving strategy for the lending book.

THE ROLE

• Developing credit risk strategies across the credit risk lifecycle, with a specific focus on customer management strategies
• Assessing and analysing profitability across the lending book to enhance performance
• Implementing scoring models into strategy to adjust credit limits, lending profiles etc
• Driving customer marketing strategies with the marketing team and leading analysis on how to improve performance, as part of wider policy management

YOUR SKILLS AND EXPERIENCE

• Essential to have had experience within the consumer lending space, ideally within the Credit Card space
• Strong experience and ability using SQL or Python is essential
• Ideal to have developed existing customer strategies within the credit risk space, specifically credit limits

SALARY AND BENEFITS

• Up to £60,000 base salary
• Company pension
• Medicash scheme
• 25 days holiday
• Opportunity to work directly in projects and take direct ownership over your work

HOW TO APPLY

Please register your interest by sending your CV to Rosie Walsh through the ‘Apply’ link

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Senior Data Scientist
Fashion retailer
London (2-3x days a week in office)
£85,000 + Bonus + Benefits

THE ROLE:

Harnham is working with a leading fashion retailer in the UK who are looking to add a Senior Data Scientist to their UK team.

The focus of this new investment is to introduce cutting-edge machine learning to the business, solving problems across the company.

Projects will include: performance marketing (attribution modelling / market mix modelling), customer behaviour analysis, supply chain optimisation and dynamic pricing strategies.

WHAT YOU NEED:

• A solid understanding of both supervised and unsupervised machine learning techniques
• A passion for solving complex commercial problems with a data-driven modelling approach
• Strong communication skills
• An MSc or equivalent in a STEM subject
• Strong skills in Python and SQL
• Cloud experience
• Experience in deploying, scaling and maintaining machine learning models in production.

THE BENEFITS

You can earn up to £85,000 + bonus + benefits in this position.

HOW TO APPLY

To be considered for this exciting opportunity, please submit your details using the Apply button on this page. For more information about similar roles please contact Nick Mandella at Harnham.

KEYWORDS

Python, SQL, Data Scientist, Data Science, Machine Learning, Retail, Customer, marketing, Data, AI. Databricks, azure, MLOps.

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Data Scientist (Marketing)

3x day per week in office (London)
Telco
£45,000 – £50,000 + Equity

OVERVIEW

At Harnham we’re working with a tech start-up in London who are looking for a Data Scientist to help lead their efforts in performance marketing and customer behaviour analysis.

They have an established data team within the organisation tackling a range of problems, and are growing their data science team to help bring a more sophisticated approach to key areas.

There is a fun and relaxed culture, as well as a passion for using data to help companies in the financal services space make better decisions and maximise their ROI from marketing efforts!

This is one of a few roles they’re hiring for in 2025 – so a great time to join!

THE ROLE

You will be:

• Helping to lead data science efforts related to marketing problems and customer behaviour for the company (e.g. segmentations, propensity modelling, LTV, market mix modelling, attribution modelling etc).
• Help promote the company’s data-driven culture
• Work closely with other teams including engineering, product, pricing and CRM
• Come up with creative ways for the company to get results using data
• Pushing the boundaries and exploring new and innovative techniques

SKILLS AND EXPERTISE

You must have:

• A BSc or MSc in a STEM subject (e.g. Maths, Stats, Computer Science, Physics etc)
• Experience programming with Python
• Knowledge of a database query language (SQL preferred)
• Experience in using machine learning to solve customer/marketing-related problems

SALARY

In this role you could earn up to £50,000 + benefits.

HOW TO APPLY

To be considered for this exciting opportunity, please submit your details using the Apply button on this page. Or for more information regarding other roles please contact Nick Mandella at Harnham.

KEYWORDS

Python, SQL, machine learning, Data Scientist, Data Science, analyst, analytics, data, AI, customer, marketing, attribution.

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Senior CRO Analyst

Location: Holborn (2x per week)
Salary: £65,000 per annum

About the Role:

A leading international marketing agency is seeking a Senior Conversion Rate Optimisation (CRO) Analyst to join their growing Data & Strategy team. This is a key opportunity to work on high-profile accounts and take ownership of the CRO space for a major automotive brand. You’ll collaborate with a talented Data Science team, driving data-driven insights to optimise customer journeys and improve conversion rates.

Key Responsibilities:

• Lead strategy development and create impactful presentations (decks) for clients, focusing on key areas such as UX, finance, forms, and more.

• Collaborate with Data Scientists to extract insights from GA4 data, ensuring the right questions are answered and actionable narratives are created.

• Manage web analytics tasks, from data interpretation to setting up and understanding tagging and events.

• Brief data science teams, use tools like Omnibug to optimize the tracking and analysis of user behaviour.

• Regularly engage with clients through workshops, planning sessions, and offering insights that drive strategic decisions.

• Analyse user journey data to identify hypotheses for A/B testing and conversion rate optimization, and collaborate with external agencies to implement tests.

Skills & Experience:

• 5+ years of experience in Web Analytics, CRO, or a similar role, ideally within a digital/marketing agency.

• Strong experience with web analytics tools such as Adobe Target, Medallia, MXO, or Decibel, and a deep understanding of customer/user journey analytics.

• Expertise in A/B testing and CRO methodologies, with the ability to develop data-driven hypotheses.

• Data Science Knowledge: Familiarity with concepts like clustering, predictive modelling, and basic statistical techniques.

• Technical Skills: Knowledge of BigQuery/SQL/Python is desirable but not essential.

• Strong communication skills – experience presenting to clients and collaborating with internal teams.

• Experience working with large clients in complex environments is a plus.

Why Join?

• Work with a global, well-established marketing agency offering professional growth.

• Engage in a mix of strategic thinking and hands-on data work for high-profile clients.

• Competitive salary and travel expenses covered for client meetings outside London.

The Process:

1. Initial interview with Talent Acquisition (if applicable).

2. Online interview with the Data Science Manager and potentially the Data & Strategy Director.

3. In-person interview with a presentation: Present a recent project you’ve worked on, showcasing your experience in CRO and analytics.

If you’re passionate about data storytelling, CRO, and web analytics, apply now to take your career to the next level!

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**Research Manager & Director Roles – Leading Global Research Agency**

**Location:** Central London (Hybrid – 3 days in office)

**Salary:**

– Research Manager – Up to £50,000 (3-4 years of experience)

– Director – Up to £80,000 (7+ years of experience)

**Company Overview:**

A well-established global research agency with a strong presence across the US and UK. The company operates in multiple divisions, each specializing in different sectors, including FMCG, Retail, Tech, Media, Healthcare, and more. You will work in a fast-paced, dynamic environment with a diverse and high-profile client base.

**Team Overview:**

Join a large and collaborative team of researchers across qualitative and quantitative disciplines. The team works on a wide range of projects, including brand, communications, innovation, audience, and shopper insights, serving top-tier clients in various industries. The work culture is described as ambitious, friendly, and focused on delivering high-quality results.

**Role Overview:**

– **Research Manager:**

Manage end-to-end research projects, build strong client relationships, and ensure the delivery of high-quality insights.

– **Director:**

Stay hands-on with survey design, research execution, and debrief presentations. Oversee projects and manage client relationships, with opportunities to contribute to new business and proposals. You may also have the chance to manage a small team, if desired.

**Desired Candidate Profile:**

– Strong experience in quantitative research methods.

– Familiarity with survey design, brand tracking, campaign evaluation, and innovation.

– Experience working with FMCG, media, or related sectors is a plus.

– Excellent client-facing and stakeholder management skills.

– A drive for professional growth and development, with a desire to work in a high-performance environment.

**Interview Process:**

– **Stage 1:** 30-minute CV run-through with hiring managers.

– **Stage 2:** Proposal design task.

If your interested in either role please send your CV to Jordan Victor via the Apply Link below

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Lead Analyst

Up to £85,000

Hybrid – London

A great opportunity to join a leading consumer goods and food delivery business as a Lead Analyst

THE COMPANY

The business are a leading consumer goods and food delivery business as a Lead Analyst. And they are undergoing a period of rapid growth in which they are opening 100 new stores and growing by 5-10% week on week.

With this period of rapid growth, they are now seeking to transform their marketing outlook with the addition of a Lead Analyst to the team.

THE ROLE AND RESPONSIBILITIES

• Analyse and enhance key metrics across customer acquisition, retention and revenue generation
• Develop and maintain advanced data models using dbt
• Ensure KPIs are aligned with overall business objectives, identifying areas for improvement and efficiency
• Ensure data insights are clear and actionable for driving performance improvements
• Use data to provide strategic solutions that enhance how the business grows and operates as a company
• Communicate complex analysis and data insights to technical and non-technical stakeholders

YOUR SKILLS AND EXPERIENCE

• Strong technical experience in SQL (specifically within Windows Functions), Snowflake, Data Visualisation and Python/R
• Strong background in advanced analytics, predictive modelling and exploratory analysis
• Proven expertise in DBT and reporting
• Strong stakeholder management skills

THE BENEFITS

• Up to £85,000 + bonuses + equity
• Hybrid
• London

HOW TO APPLY

If interested in the role please send your CV to Jordan Victor via the Apply Link below

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Job Title: Senior Brand Manager

Location: Hybrid (3 days in the office, with 1 likely being visiting restaurants)
Salary: £65,000 base + 20% bonus

Company Overview:
Join a leading global fast-food brand with a vast customer base, serving millions of guests daily worldwide. With a strong presence in the industry for several decades, this company is continuously evolving and expanding its brand presence.

Role Overview:
As a Senior Brand Manager, you will be responsible for developing and overseeing in-restaurant creative strategies that enhance customer experiences and drive sales. Reporting directly to the Head of Brand and Communications, you will work closely with senior leadership to execute brand marketing initiatives across in-store and digital platforms.

Key Responsibilities:

• Develop and oversee in-restaurant creative assets, including printed banners, digital menu boards, window stickers, and digital screens.
• Collaborate with global and local teams to align brand strategy and ensure consistent messaging across customer touchpoints.
• Manage and mentor a small team, overseeing creative development and the execution of in-restaurant strategies.
• Work closely with operations and property teams to drive customer engagement and foot traffic to kiosks and other touchpoints.
• Lead creative initiatives for major campaigns, including new product launches, seasonal promotions, and more.
• Be the primary point of contact for advertising and print agencies, ensuring timely and high-quality delivery of assets.
• Monitor and analyze the impact of campaigns and suggest improvements for future marketing efforts.

Essential Skills & Experience:

• 6+ years of in-person brand marketing experience (5 years if exceptionally strong).
• Experience in managing and developing creative strategies and overseeing creative teams.
• Previous experience working with large brands (retail, restaurant, or other industries).
• Strong understanding of in-restaurant marketing, including digital screens, menu boards, kiosks, and printed assets.
• Ability to collaborate with cross-functional teams, including creative, operations, and property teams.
• Proven track record of managing and executing high-profile campaigns from concept to rollout.

Desirable Skills & Experience:

• Experience in managing or mentoring junior team members.
• Strong understanding of customer experience and a passion for improving in-restaurant experiences.

The Benefits:

• Up to £65,000 + benefits
• Hybrid
• London

How to Apply:

If interested in this role please send your CV to Jordan Victor via the Apply Link below

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Senior Experimentation Analyst | Up to £75,000 + benefitd | Hybrid – London (3 days/week)

Join one of the UK’s most recognisable food delivery platforms and play a key role in shaping how millions experience value. We’re hiring a Senior Experimentation Analyst to drive pricing and promotions strategy through robust A/B testing, statistical analysis, and hands-on collaboration with commercial teams.

What you’ll do:

• Design and run complex experiments (A/B, regression, hypothesis testing)

• Optimise pricing models and promotional tactics across customer segments

• Dive into initiatives like our new “Value for Money” project, impacting revenue at scale

• Analyse pricing for new restaurant partners and customer-facing fees

• Work cross-functionally with pricing, analytics, and commercial teams to inform strategy

What we’re looking for:

• Strong SQL & Python (must be comfortable writing and interpreting code)

• Solid experience with experimentation and data-driven decision-making

• Background in commercial or product analytics (marketplace or B2C ideal)

• Confident stakeholder manager who can influence, challenge, and lead discussions

• Data storyteller who thrives on solving high-impact business problems

Package & Perks:

• £75,000 – £78,000 base salary

• Discretionary bonus

• Up to 12% pension (8% employee contribution)

• Hybrid working – 3 days/week in London

Hiring process:

1. Technical screen (2x SQL + 1x Python via Kaggle)

2. Take-home case study + in-person interview (90 mins incl. presentation & Q&A)

If you’re ready to use experimentation to drive meaningful business outcomes, we want to hear from you.

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Marketing Data Scientist (12-month FTC)
Up to £60,000
Hybrid – London

A great opportunity to join a leading customer data science company as a Marketing Data Scientist

THE BUSINESS

The business is a global leader in customer data science, empowering businesses to compete and thrive in the modern-data driven economy always putting the customer first. Enabling businesses to grow and diversify by utilising and understanding data and ensuring the customer is put first.

Joining the business as a Marketing Data Scientist, you’d be helping to scope out business problems, creating data science solutions for these problems and then delivering insights and recommendations of the back of it.

THE ROLE AND RESPONSIBILITIES

• Understanding business problems, creating data science solutions and delivering insights and recommendations
• Working directly with clients and helping the team to give recommendations and answer questions
• Working on projects across clustering, propensity modelling, regression and more
• Building data visualisations and dashboards for clients

YOUR SKILLS AND EXPERIENCE

• Strong technical experience in SQL and Python
• Experience in data visualisation
• Proven track record working across propensity modelling, clustering, forecasting, regression and more
• Strong commercial and stakeholder management expertise

THE BENEFITS

• Up to £60,000
• Hybrid
• London

HOW TO APPLY

If interested in the role please send your CV to Jordan Victor via the Apply Link below

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Lead Econometrician

Up to £60,000

Hybrid – London

A great opportunity to join a leading marketing agency as a Lead Econometrician

THE COMPANY

The business are a leading marketing agency specialised in content creation, social campaigns and media measurement across the globe. Working with clients from various different sectors the business are now looking to grow out the team due to an influx of new projects – and are seeking to hire a Lead Econometrician to join their Measurement team.

THE ROLE AND RESPONSIBILITIES

• Supporting the team on econometrics projects including maintaining, running, and building MMM models from scratch
• Collecting, preparing and cleansing datasets from various sources
• Presenting key insights to clients and senior stakeholders
• Analysing marketing data and providing insights and recommendations to clients
• Support clients with optimising marketing and advertising spend

YOUR KEY SKILLS AND EXPERIENCE

• Proven track-record building MMM/Econometrics models from scratch
• Background in marketing analytics or customer analytics
• Strong technical experience
• Strong communication skills

THE BENEFITS

• Up to £60,000
• Hybrid
• London

HOW TO APPLY

If interested in the role please send your CV to Jordan Victor via the Apply Link below

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Senior Route Revenue Manager
Location: Hybrid – Euston, London (3 days a week in the office)
Salary: £55,000 – £60,000 + Benefits (TBC)

About the Company:
A leading UK transport provider operating across the West and North West, covering areas such as the West Midlands, North West, North Wales, and Scotland. With a newly secured 9-year contract extension, the company is positioned for significant growth, investment, and long-term stability, offering exciting opportunities for the future.

Role Overview:
As Senior Route Revenue Manager, you’ll be responsible for managing one of the company’s most important and high-revenue-generating routes. You’ll lead a small team and work on optimizing pricing strategies, revenue generation, and ensuring targets are met. Your work will span across train services and other aspects of the travel experience, including retail spaces at stations and additional add-ons to the service.

Key Responsibilities:

• Take ownership of a high-revenue route, ensuring effective pricing strategies and revenue growth.
• Lead and manage a team of Senior Revenue Analysts and Revenue Analysts to achieve team objectives.
• Adjust rail prices on a daily basis and manage revenue delivery to meet targets.
• Lead weekly trading calls, collaborating with key internal and external stakeholders.
• Work closely with senior management to support strategic decisions and business performance.

Requirements:

• 3-5 years of experience in revenue management, preferably within the transport or travel sectors.
• Experience working with senior stakeholders and C-suite executives.
• A strong self-starter with a driven attitude and the ability to work in a dynamic, fast-paced environment.
• Experience in managing teams and delivering successful revenue outcomes.

Benefits:

• Competitive salary of £55,000 – £60,000.
• Hybrid working model (3 days per week in the Euston office).
• Additional benefits to be confirmed.

If you’re eager to join a growing and stable company with long-term prospects, and if you have the expertise to manage a crucial route within a dynamic team, we’d love to hear from you!

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