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ML OPS ENGINEER – RELOCATION TO BARCELONA

We are working with an incredible start up company who have just gained pre-seed funding to join the team as a ML Ops Engineer. The role does require relocation to Barcelona.

Requirements:

• 5+ years ML Ops experience
• AWS & GCP
• Docker & Kubernetes
• Open to relocation

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Lead Data Scientist
Location: Central London (1 day per week in office)
Salary: Up to £85,000 + Benefits (with potential for small flexibility)

Company: Leading Performance Marketing Agency

We are seeking a skilled Data Scientist to join a fast-growing performance marketing agency, specialising in data engineering, analytics, and innovative technology solutions. This role offers the opportunity to work with some of the biggest names in the industry, while leveraging advanced data science methodologies to drive scalable, sustainable growth.

Key Responsibilities:

• Develop and implement advanced analytics models, including LTV, Propensity, and Forecasting/Pricing models.

• Work with Cloud environments (GCP/AWS) to deploy models for Google and Meta Ads.

• Lead or assist in experimentation methodologies such as incrementality, attribution, MMM, and brand lift studies.

• Consult with high-profile clients to provide data-driven insights and measurement strategies.

• Collaborate with other data scientists and analytics teams to refine methodologies and deliver results.

Ideal Candidate:

• Proficiency in Python and SQL (essential).

• Experience with Cloud platforms (GCP/AWS) is highly desirable.

• Familiarity with key methodologies such as Experimentation, Attribution, MMM, Propensity, and LTV modelling.

• Experience in the performance marketing space is strongly preferred.

• Management experience is a plus, but open to candidates with a passion for mentoring.

• Agency experience is a strong advantage.

Interview Process:

• 1st Stage: Introductory interview with Antonio (30-45 mins).

• 2nd Stage: Technical assessment covering SQL, Python, and Marketing Analytics.

• 3rd Stage: Panel interview with Data Scientists and Heads of Innovation and Product.

• 4th Stage: Final sign-off chat with the CTO and MD.

If you’re looking to join a high-growth, award-winning agency and make a significant impact with your data science expertise, apply now!

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Senior Strategy & Analysis Manager
London – 3 days in the office

Salary up to £70,000

Ready to shape the future of rail travel through insight, planning, and strategic leadership?

We’re looking for a commercially minded Senior Strategy & Analysis Manager to lead a high-performing team of analysts at the heart of our Commercial function. Reporting to the Head of Commercial Strategy Analysis, you’ll drive business-critical decisions through demand forecasting, revenue modelling, and data-driven insights – all while supporting a collaborative and forward-thinking culture.

What you’ll be doing:

• Lead a team of analysts to forecast revenue, evaluate commercial performance, and develop long-term strategic plans

• Drive insight into customer behaviour, pricing, and commercial effectiveness

• Own the commercial business planning cycle and submit key performance reports to the DfT

• Partner with stakeholders across Marketing, Sales, Finance, and Compliance to align strategy and performance

• Define the Commercial Department’s data and analytics approach to boost revenue and customer satisfaction

• Deputise for the Head of Commercial Strategy Analysis as required

What we’re looking for:

• Strong commercial experience within the rail industry

• Proven expertise in revenue management, forecasting models, and business planning

• Confidence presenting insights and influencing decisions at senior levels

• Experience managing and developing high-performing teams

• Excellent communication, stakeholder engagement, and leadership skills

• Tools such as Tableau, Power BI, or SQL are a plus, as is familiarity with the PDFH

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LEAD DATA SCIENTIST

£75,000 – £85,000

LONDON – 1 DAY A WEEK

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

THE COMPANY

Join a fast-growing London-based agency that specialises in performance marketing and cutting-edge technology. The agency delivers services across paid search and social, data engineering, analytics, and marketing automation. The agency partners with major brands across retail, travel, tech, and entertainment, and runs an inclusive Early Careers Scheme to support entry into marketing and tech. Their mission: to fuel scalable, sustainable growth through data-driven marketing and innovative tech solutions.

THE ROLE

This performance marketing agency focuses on digital analytics and measurement, delivering long-term, data-driven projects across platforms like Google and Meta. Data Scientists play a key role in experimentation and measurement (including incrementality, attribution, and MMM), as well as advanced analytics such as lifetime value and propensity modelling. Projects involve cloud-based environments, with models deployed directly into advertising platforms. The work goes beyond typical agency tasks, including strategic consulting for major clients and direct access to robust first-party data – a rare advantage in the agency space.

SKILLS + EXPERIENCE

• Python + SQL and ideally GCP/AWS
• Key methodologies are Experimentation (incrementality, brand lift studies, geo lift testing, causal inference), MMM, Propensity and LTV modelling
• Management experience desirable but open to mentoring

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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Media Data Analyst
London (Hybrid – 2 days in office)
Up to £60,000 + benefits

A leading international media group is looking for a Data Analyst to join their growing data team within the Audio division – home to some of the UK’s most well-known radio and digital content brands.

This is an exciting opportunity to work on high-visibility projects that combine audience insights, advertising strategy, and competition performance to shape how millions interact with digital media content.

What You’ll Work On:

• Analyse audience behaviour across digital and audio platforms – who’s listening, how often, and through what channels

• Support commercial teams in optimising advertising inventory and pricing decisions

• Deep dive into competition data – helping identify trends, patterns, and smarter targeting strategies

• Build dashboards, generate reports, and present clear, actionable insights to stakeholders

• Collaborate with teams across product, marketing, legal, and planning to support data-informed decision making

What You’ll Bring:

• Experience with SQL and strong analytical tools (Excel, Python, or BI platforms)

• Knowledge of A/B testing and experimental design

• Strong problem-solving mindset with a commercial lens

• Ability to communicate findings in a clear, compelling way

• Friendly, curious, and easy to work with – someone who enjoys collaboration

• (Bonus) Background in product analytics, advertising, or competitions (e.g., gambling sector)

Join a team that operates like a boutique internal consultancy – using data to drive creativity and smarter business decisions across the UK and Europe.

Apply now to play a key role in shaping the future of audio and digital media insights.

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Senior Data Scientist
London (Hybrid – 2 days in office)
Up to £90,000 + benefits

A major international media group is looking for a Senior Data Scientist to join their growing data function within the Audio division – home to some of the UK’s most recognisable digital and broadcast brands.

You’ll be using your technical skills and business acumen to shape high-impact data projects around audience insights, advertising inventory, and competitions. This is a hands-on role, working closely with cross-functional teams across the UK and Europe to improve decision-making and unlock commercial value through data.

What You’ll Be Working On:

• Building predictive models to better understand audience behaviour, engagement, and revenue outcomes

• Analysing advertising inventory and pricing strategy to support a key revenue stream

• Driving insights from competitions data – understanding participation patterns, audience segmentation, and ROI

• Collaborating with engineers, analysts and product stakeholders to embed data into everyday decision-making

• Supporting the wider data function in operating as an internal “consultancy” within the business

Tech & Experience:

• Strong knowledge of SQL and Python

• Hands-on experience with A/B testing and statistical modelling

• Background in product analytics or commercial data projects

• Comfortable working with stakeholders across tech and non-tech functions

• Great communication skills – personable, curious, and clear in explaining complex ideas

• (Bonus) Experience in media, gambling, or advertising environments

This is a brilliant opportunity to join a high-visibility team in a creative, fast-paced industry – with the chance to work on diverse and meaningful projects that impact millions of users.

Apply now to be part of a team shaping the future of audio data in one of the UK’s most exciting media organisations.

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Senior Marketing Data Scientist
Up to £75,000
Hybrid – London

A great opportunity to join a leading customer data science company as a Senior 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 Senior 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
• Line Management/Mentoring experience

THE BENEFITS

• Up to £75,000
• 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 Data Analyst / Data Manager – High-Growth Consumer Subscription Business
Orpington (Hybrid – 3 days in office) | £75,000 DOE | High-Impact Role

A fast-scaling, consumer-facing subscription business is seeking a Senior Data Analyst / Data Manager to take full ownership of its data operations during a period of rapid expansion. Operating at the intersection of entertainment, competitions, and e-commerce, the company offers free-to-enter prize draws and exclusive subscriber rewards – including VIP experiences and monthly benefits.

After significant growth in 2024 (headcount increased 5x), the business is preparing for international expansion and requires a dedicated, commercially-minded data lead to build scalable systems, deliver insights, and support decision-making across all teams.

The Role:

• Build and manage the company’s data warehouse and ETL processes

• Develop and maintain dashboards in Looker Studio; conduct analysis in SQL

• Provide actionable insights to marketing, product, and leadership teams

• Prioritise incoming data requests and deliver timely solutions

• Own data governance, quality audits, and the development of long-term strategy

• Report directly to the founder and be a key part of the leadership team

What They’re Looking For:

• 3+ years in data analytics roles (ideally within e-commerce, gaming, or digital subscriptions)

• Strong SQL skills and experience with Looker Studio or similar BI tools

• Product Analytics and Experimentation experience

• Proven experience building and maintaining ETL pipelines and data infrastructure

• Commercially driven with a track record of using data to drive business value

• Adaptable, hands-on, and comfortable working in a fast-paced environment

Key Details:

• Salary: Circa £75,000 (range £60,000-£85,000 depending on experience)

• Location: Orpington (3 days per week in the office required)

• Sector experience in e-commerce, betting, or digital consumer products is highly valued

• Preference for candidates with stable employment history and strong stakeholder communication skills

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Commercial Data Analyst
Up to £80,000
Hybrid – 4 days/week in South West London (5 days during first 3 months)

A digitally-led retail brand within a well-established retail group is hiring a Commercial Data Analyst to help drive smarter, faster decisions across the business. With a balanced mix of e-commerce and brick-and-mortar, the business is profitable and growing-with ambitious digital growth targets for the year ahead.

As the sole embedded data expert in the brand team, you’ll work across Digital, Marketing, Buying, Finance, and Exec stakeholders-responding to ad hoc requests, delivering insightful reporting, and most importantly, using data to proactively influence strategy.

Example projects:

• Spot sales trends (e.g. weather-driven demand spikes) and recommend agile trading or campaign decisions

• Support new store expansion strategy by analysing customer location, order frequency, and market viability

• Evaluate marketing ROI using tools like Fospha and GA; lead incrementality testing across paid channels

• Integrate new data sources (e.g. research, attribution, or behavioural data) to enrich customer understanding

About you:

• 3+ years in a data analytics or insight role

• Strong SQL, experience with BigQuery preferred

• Exposure to Python for analysis/modelling

• Skilled in data visualisation (Looker, Tableau, Power BI, etc.)

• Experience in digital, marketing or customer analytics

• E-commerce or retail background a plus

• Naturally curious and proactive-you spot trends and ask questions before others do

Tech Stack: BigQuery (SQL), Python, Looker, Fospha, GA, ContentSquare

Interview Process:

1. Intro chat with Chief Digital Officer

2. In-person data task with senior stakeholders

3. Optional meeting with other senior leaders (Marketing, Finance, COO)

This is a fantastic opportunity for a commercially-minded analyst to step into a role where your insights will directly shape digital growth and brand strategy.

Interested or know someone perfect? Apply now or DM for more details.

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Business Development Director – Strategic Insights & Research | £80-120k + Equity | London (Hybrid)

Join a fast-growing tech-powered research firm that’s redefining how leading global brands, non-profits, and institutions understand public opinion. Backed by a cutting-edge data platform and with work featured in outlets like The Economist and FT, we’re helping the world’s most influential organisations make smarter decisions.

We’re seeking a driven Business Development Director to lead new business efforts, shape go-to-market strategies, and build long-term relationships with clients like global corporates, think tanks, and major foundations.

What you’ll be doing:

• Driving outbound BD campaigns and building strategic growth plans

• Leading the full sales cycle – from pitch to close

• Writing compelling proposals and helping shape research design

• Securing 10+ face-to-face meetings per week with key decision-makers

• Growing existing accounts and nurturing C-suite relationships

• Collaborating closely with Research, Marketing & Content teams

What we’re looking for:

• Proven BD track record in full-service market research (agency side ideal)

• Strong grasp of public opinion, reputation, comms or policy research

• Confident in both new business hunting and account growth

• Experience working with non-profits, public affairs or corporate comms clients

• Comfortable meeting in-office 4 days/week in London and engaging clients face-to-face

Package:

• £80,000-£120,000 salary

• 0.1-0.3% equity

• High-ownership role in a well-backed, high-visibility team

Find out more and apply via the link below !!!

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Principal Econometrician
Location: West London (Hybrid – 3 days a week in the office)
Salary: Up to £70,000

Ready to make an impact in a dynamic, fast-paced environment? Join a leading media and entertainment brand and take on an exciting opportunity to drive the efficiency of marketing plans through advanced econometric insights.

Role Overview:
As a Principal Econometrician, you’ll play a pivotal role in delivering econometric projects that help optimize business decision-making. You’ll work with key stakeholders to ensure your insights translate into real-world decisions on budget allocations, media planning, and marketing efficiency. If you’re passionate about advanced statistical techniques, media planning, and optimizing commercial strategies, this role is for you.

Key Responsibilities:

• Lead the delivery of econometric projects, ensuring alignment with key business goals and objectives
• Drive the Cross-Portfolio Optimisation process, using econometric insights to inform budget allocations and marketing decisions
• Collaborate with key stakeholders to integrate econometric findings into real-world business decisions
• Partner with consumer strategy teams to enhance the department’s reputation and influence within the company
• Lead the development of new techniques, tools, and processes to improve team efficiency, staying ahead of industry trends

Ideal Candidate:

• Proven experience delivering econometrics projects with an established provider in the industry
• Experience with sizing, allocating, and optimizing media investment decisions in a commercial context
• Passion for using statistical techniques to convert data into actionable recommendations
• Strong understanding of media planning and buying, and knowledge of how optimization techniques inform media strategies
• Advanced Excel skills to manipulate data and optimize based on model parameters
• Self-motivated with the ability to thrive in a fast-paced, dynamic environment
• Experience in developing and upskilling econometrics teams to ensure the use of the latest tools and techniques
• Excellent communication skills with experience delivering results and recommendations that impact commercial decision-making
• Strong organizational and time management skills to manage multiple tasks and priorities effectively
• Knowledge of Python is desirable

The Benefits:

• Up to £70,000 + benefits
• Hybrid
• West London (x3 days a week)

How To Apply:

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

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