FIND YOUR NEXT DATA SCIENCE JOB
We help the best talent in the Data Science market find rewarding careers.
Harnham is the best company for data science jobs because we are a global leader in data science recruitment.
Our extensive network of data science employers, and clients, ensuring you find the perfect match for your skills.
We offer a range of data science jobs from entry-level to director-level and have an experienced team of recruiters who will help match you with the right employer.
Also, we provide excellent resources and advice for data science job seekers, helping you prepare for interviews, negotiate salaries, and more.
HOW WE
DO IT
We pride ourselves on keeping our pulse on trends across the Data Science industry.
Our dedicated Data Science consultants have immersed themselves fully in the market and are able to provide industry-leading advice. Whether you’re looking for your next Data Science Job, or to find a Data Scientist for your team, Harnham has a wealth of knowledge and will help you make the process as efficient as possible.
We pride ourselves on keeping our pulse on trends in the industry and offer educational programmes to help keep our candidate’s skills sharp.
WHAT SETS
US APART?
We place considerable emphasis on getting to know you, your motivations and your skills.
We do this to ensure we only introduce you to companies that suit you. By taking the time to listen to and explore our clients’ briefs, we soon know whether candidates fit their culture or not.
As a genuine specialist in Data Science recruitment, we have developed long-standing partnerships within the marketplace. These relationships allow us to provide our candidates with access to the best opportunities in the sector.
If you are looking for that next Data Science job and career step, let us help you find it.
As working from home becomes ever more common, you can now search Remote Data Science Jobs.
JOBS
LATEST DATA
SCIENCE JOBS
Harnham are a specialist Data Science recruitment business, specializing in finding you your next data science job!
Data Scientist
Birmingham
£60000 - £75000
+ Data Science & AI
PermanentBirmingham, West Midlands
To Apply for this Job Click Here
Remote – Senior Insight Analyst / Data Scientist
We’re looking for a Senior Insight Analyst to join a fast-moving tech company. You’ll lead insight projects from start to finish-digging into data, running experiments, and delivering recommendations that directly influence marketing, product, and commercial decisions.
You’ll work cross-functionally, using tools like SQL, Python, and data viz platforms (e.g., Tableau) to uncover actionable insights.
- Analytical Depth: You’re comfortable using statistical methods (A/B testing, forecasting, causal inference) to go beyond the obvious and surface meaningful insights.
- Technical Proficiency: You’re confident in SQL and Excel/Google Sheets. You can use Python (e.g. Pandas) for data manipulation and analysis. Familiarity with BI tools like Tableau or PowerBI is a plus.
- Strong Communicator: You can distill complex findings into clear, compelling stories that drive decision-making.
- Curious and Adaptable: You’re always looking to learn, eager to explore new tools or methods, and quick to adapt to changing business needs.
- Experience with Diverse Data: From structured databases to event/clickstream data from mobile apps, you’re comfortable navigating a variety of data sources.
To Apply for this Job Click Here
Contract Data Scientist
London
£550 - £600
+ Data Science & AI
ContractLondon
To Apply for this Job Click Here
Key Responsibilities:
- Deliver end-to-end data science solutions in a consultancy environment
- Build and deploy custom forecasting models (e.g., time series, XGBoost, deep learning)
- Implement reinforcement learning techniques for dynamic prediction
- Apply causal inference and graph AI methods to uncover complex relationships
- Develop and containerize models using Docker
- Work within modern CI/CD pipelines to streamline deployment
- Operate in a cloud environment (AWS preferred)
- Contribute to the development of a data-driven web application using JavaScript/TypeScript and Next.js
Required Skills & Experience:
- Strong experience as a Full Stack Data Scientist
- Deep expertise in time series forecasting and machine learning (XGBoost, deep learning, reinforcement learning)
- Practical knowledge of Causal AI and Graph AI methodologies
- Proficiency in Python for data science and model development
- Experience with Docker, CI/CD workflows, and AWS
- Comfortable working with JavaScript, Next.js, and ideally TypeScript
- Ability to thrive in a consulting or agency environment with changing client demands
- Strong ownership of delivery and adaptability to fast-moving projects
Desirable:
- Experience in retail analytics
- Prior work in cross-functional teams building web-based data products
- Exposure to start-up style or agile project settings
To Apply for this Job Click Here
Director of Data Science
San Francisco
$250000 - $280000
+ Data Science & AI
PermanentSan Francisco, California
To Apply for this Job Click Here
Director of Data Science – Pricing, Lead Scoring & Personalization
Location: San Francisco (Remote Eligible)
Salary: $250-280k base + equity
We are looking for a Director of Data Science to lead a high-impact team focused on pricing optimization, lead scoring, and customer personalization for a rapidly growing travel platform backed by top investors. This role is ideal for a data science leader who can define strategy, develop predictive models, and drive measurable business impact through advanced analytics and machine learning.
Key Responsibilities:
- Lead and scale a high-performing team of data scientists and analysts, fostering a culture of experimentation, collaboration, and innovation.
- Develop dynamic pricing models that optimize revenue, improve conversion rates, and enhance market competitiveness.
- Enhance lead scoring and customer personalization by building predictive models that identify high-value leads, optimize sales funnels, and improve user experiences.
- Design and analyze A/B tests, causal inference models, and other experimentation techniques to measure and optimize product, marketing, and operational decisions.
- Establish frameworks for data quality, governance, and self-service analytics to ensure consistency and accessibility across the company.
- Collaborate with Product, Finance, Marketing, Sales, and Operations to define key business metrics, analyze performance, and provide strategic recommendations to executive leadership.
Qualifications:
- 10+ years of experience in data science or analytics, including at least 5 years in leadership roles.
- Expertise in predictive modeling, dynamic pricing, and lead scoring using machine learning and statistical methods.
- Strong experience with SQL, Python, R, and BI tools such as Looker, Tableau, or Sigma.
- Proven ability to translate data insights into business strategy and influence executive stakeholders.
- Deep knowledge of A/B testing, experimentation, and customer segmentation.
- Industry experience in B2B SaaS or travel is a strong plus.
- Bachelor’s degree in a technical field required; Master’s or MBA preferred.
This is an opportunity to shape the data science strategy at a fast-growing company, driving decisions that will transform pricing, customer engagement, and business growth.
To Apply for this Job Click Here
Data Scientist
Leicester
£480 - £480
+ Data Science & AI
ContractLeicester, Leicestershire
To Apply for this Job Click Here
Contract Data Scientist – MMM & Causal Inference
£480/day | Outside IR35 | 3-Month Contract
Hybrid (2 days/week in Leicester)
We’re partnering with a highly data-literate, fast-paced company seeking a skilled Contract Data Scientist to join their advanced analytics team. If you thrive in environments where data drives every decision and you bring strong communication skills to match your technical expertise, this one’s for you.
Please note: Candidates must have excellent communication skills
Tech Stack:
-
Databricks
-
SQL
-
Python
-
PySpark
-
Robyn
-
Meridian / Light MMM
⭐ Nice to Have:
-
R
-
Dashboarding experience
-
PyMC
✅ Requirements:
-
Proven Marketing Mix Modeling (MMM) experience
-
Solid grasp of causal inference techniques
-
Ability to clearly explain complex models and insights to non-technical stakeholders
-
Comfortable working in a high-autonomy, fast-delivery environment
Details:
-
Day Rate: £480/day
-
Outside IR35
-
Hybrid: 2 days/week in Leicester
-
Duration: Initial 3 months with strong potential for extension
To Apply for this Job Click Here
Data Scientist – Time Series Forecasting
London
£500 - £600
+ Data Science & AI
ContractLondon
To Apply for this Job Click Here
DATA SCIENTIST – TIME SERIES FORECASTING
6-MONTH CONTRACT
£500-600 PER DAY (INSIDE IR35)
This is an exciting opportunity for a Data Scientist to lead the development of robust time series forecasting models for a major media organisation. You’ll take ownership of a fully scoped, delivery-focused project, working across daily, weekly, and monthly resolutions to forecast ad revenue, website traffic, and digital performance. The environment offers autonomy, technical depth, and the chance to make a measurable business impact from day one.
THE COMPANY
A leading name in the digital media space, this organisation is focused on leveraging data to drive growth and performance across its digital channels. With a modern cloud-based tech stack and a growing demand for predictive insights, they’re investing in scalable data science capabilities. Based in London, the team operates on a hybrid model with 2 days a week in their.
THE ROLE
As the lead Data Scientist on this project, you’ll be responsible for the end-to-end delivery of forecasting solutions, from model design to deployment. You’ll collaborate closely with stakeholders across marketing, commercial, and product teams to shape model inputs and outputs that are both business-relevant and technically sound.
Your responsibilities will include:
-
Building and deploying time series models for revenue, traffic, and ad performance
-
Operating across multiple temporal resolutions (daily, weekly, monthly)
-
Working with structured web analytics and revenue data in a cloud environment
-
Ensuring models are robust, explainable, and scalable for production use
-
Collaborating with cross-functional teams to understand needs and define targets
-
Managing delivery independently within a scoped project timeline
KEY SKILLS AND REQUIREMENTS
-
5+ years’ experience delivering commercial time series forecasting projects
-
Strong programming ability in Python (NumPy, Pandas, scikit-learn)
-
Solid SQL skills and experience working with large datasets
-
Experience deploying models into production environments (GCP preferred)
-
Strong communication skills and stakeholder collaboration experience
-
Ability to manage the full delivery lifecycle autonomously
TECH STACK
-
Python, SQL
-
GCP (BigQuery, Cloud Functions)
-
Docker, Kubernetes, Airflow
-
Git, CI/CD pipelines
-
Tableau (optional)
WHY APPLY
-
Lead a high-impact forecasting project for a major media brand
-
Work with a modern, cloud-first tech stack
-
Hybrid working:
-
£600/day (Inside IR35, up to £650 billing rate)
-
6-month initial contract
HOW TO APPLY
Please register your interest by sending your CV via the apply link on this page.
To Apply for this Job Click Here
Data Scientist – Time Series Forecasting
London
£600 - £700
+ Data Science & AI
ContractLondon
To Apply for this Job Click Here
Contract Data Scientist – Time Series Forecasting
Duration: 6 months
Rate: £600-700/day (Inside IR35)
Location: Hybrid – 1-2 days/week in Central London
We’re hiring a contract Data Scientist to lead the development of forecasting models for a major media organisation. The project is fully scoped and delivery-focused; you’ll be responsible for building daily, weekly, and monthly time series models to predict ad revenue, website traffic, and overall digital performance.
Key Responsibilities
-
Build and deploy time series forecasting models to predict traffic, ad performance, and revenue
-
Work across multiple temporal resolutions (daily, weekly, monthly)
-
Collaborate with stakeholders in product, marketing, and commercial teams to define inputs and targets
-
Work with structured web analytics and revenue data in a cloud environment
-
Ensure models are robust, explainable, and production-ready
Tech Environment
-
Python (NumPy, Pandas, scikit-learn)
-
SQL
-
GCP (BigQuery, Cloud Functions)
-
Deployment: Docker, Kubernetes, Airflow
-
Git, CI/CD pipelines
-
Tableau (optional)
Requirements
-
Proven expertise in time series forecasting at multiple granularities
-
Strong Python and SQL skills
-
Experience deploying models into production in a cloud environment (GCP preferred)
-
Ability to work independently and manage delivery from end to end
-
Strong communication skills for cross-team collaboration
To Apply for this Job Click Here
Data Science – Time Series and Forecasting
London
£550 - £650
+ Data Science & AI
ContractLondon
To Apply for this Job Click Here
Job Title: Data Scientist – Time Series Forecasting
About the Role:
Data Scientist to lead the design and deployment of time series models forecasting website and app traffic at daily, weekly, and monthly levels. This is a high-impact, cross-functional role within a media organization, collaborating with teams across revenue, editorial, and product.
Key Responsibilities:
-
Lead forecasting projects for monetizable traffic
-
Build and deploy models at various time scales (daily, weekly, monthly)
-
Audit and improve existing models
-
Collaborate with stakeholders across journalism, commercial, and revenue teams
-
Ensure models are production-ready using modern pipelines and tools
Required Experience:
-
Proven track record in time series forecasting (e.g., ARIMA, Prophet, LSTM)
-
Strong experience with large datasets (e.g., traffic, engagement metrics)
-
Model deployment experience in production environments
Key Skills:
-
Programming: Python (strong), SQL
-
Cloud Platforms: GCP (BigQuery), AWS
-
Deployment Tools: Airflow, DBT, GitHub
-
Collaboration Tools: JIRA, Slack, Notion
-
Strong understanding of model evaluation (RMSE, MAPE, cross-validation)
To Apply for this Job Click Here
Senior Data Scientist
London
£450 - £480
+ Data Science & AI
ContractLondon
To Apply for this Job Click Here
Job Opportunity: Marketing & Data Science – Measurement & Modelling
Location: Hybrid (2 days per week in office for first month, flexible after)
Duration: 3 months initially
Rate: £450-480/day (Outside IR35)
Commute: 2 hours by train from Central London
Role Overview:
This role focuses on marketing effectiveness and data science in the retail industry, with a strong emphasis on email campaign measurement, incremental value, and experimentation. The main responsibilities include finalising the Marketing Mix Modelling (MMM) framework, completing the A/B testing framework, and automating marketing analytics processes. The ideal candidate will have experience in causal inference, MMM, and experimentation.
Key Responsibilities:
-
Finalising the MMM framework and modelling (70% complete)
-
Building out the A/B testing framework
-
Automating marketing analytics processes, particularly around experimentation
-
Handling complex data and working with incomplete data
-
Measuring campaign impact and refining marketing strategies
Tech Stack:
-
Core: Databricks, SQL, Python, PySpark
-
Nice to Have: R, dashboarding tools
Ideal Candidate:
-
4-5 years of commercial experience in data science, preferably in an eCommerce or marketing analytics environment
-
Proven experience in causal inference, MMM, and experimentation
-
Strong communication skills and the ability to explain data-driven insights
Interview Process:
-
Stage 1: Technical assessment
-
Stage 2: Knowledge-based interview
To Apply for this Job Click Here
Head of Data Sceince
£600 - £800
+ Data Science & AI
ContractEngland
To Apply for this Job Click Here
Head of Data Science – Lead the Shift to AI-Driven Decision Making
A forward-thinking organisation is seeking a Head of Data Science to drive the evolution from traditional analytics to advanced AI solutions. This is a high-impact, strategic role starting as an expert individual contributor, with a clear path to building and leading a data science team.
In this role, you will:
-
Define and lead the AI and data science strategy
-
Develop and deploy machine learning models across key business areas
-
Collaborate with cross-functional teams to embed AI into decision-making
-
Promote AI literacy and ensure responsible, ethical AI practices
What we’re looking for:
-
Proven track record delivering ML/AI in a commercial setting
-
Strong Python skills and experience with cloud/MLOps tools (e.g. Azure ML)
-
Strategic thinker with excellent communication and stakeholder engagement skills
To Apply for this Job Click Here
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Testimonials
Client and
candidate
testimonials
A trusted partner of professionals
across the globe.
We understand the challenges our
customers face and offer the
recruitment solutions needed to drive
business success through Data &
AI.
Candidate – Data Analyst
I’ve had a great experience with Harnham. The recruiter provided great advice and ensured that I understood everything, and even followed up with me after I started my new role to see how I was settling in. I would recommend Harnham as a great recruitment company for anyone looking for a role in data and analytics.
Candidate /
Data Analyst
Candidate – Market Research Analyst
Thanks to Harnham, I am now in a role that suits me. My recruiter was able to quickly identify the skills I had to offer and match me up with his client. It was a win-win for everyone. I was given great advice throughout the process, and I also appreciated the follow-ups that I received.
Candidate /
Market Research Analyst
Client – Director of Customer Data Science – Apparel
The team at Harnham have been outstanding in helping our company build a market-leading data science team. Harnham’s communication is great, and the recruiter’s take a consultative approach that’s really focused on provided value for both their clients and their candidates. They provide strong candidates that help us fill our roles with high achievers who are also a great fit for our culture.
Client /
Director of Customer Data Science – Apparel
Client – Data Direction – Broadcast Media
I have worked with Harnham for over 2 years now as our main Analytics Recruiter partner and I am very pleased with the overall service and the people we have hired via Harnham. Harnham’s team is very good at understanding our recruitment needs and always come back with relevant and well scanned CVs, which saves me precious time.
Client /
Data Direction – Broadcast Media
Candidate – Senior Data Engineer
I've been a Senior Data Engineer for about 4-5 years and Harnham is one of the best recruitment agencies I worked with. There was a time when my offer fell through and the recruiter I was working with at Harnham jumped in to the rescue and scheduled interviews for me within a couple of days. Really good agency and some great people.
Candidate /
Senior Data Engineer
Candidate – Digital Media and Analytics
I've recently got a short-term contract role through Harnham, and things couldn't have gone better! My recruiter was incredibly helpful throughout the entire process. They also provided incredible admin support so that I could focus on the actual job in hand, rather than having to spend too much time dealing with these matters.
Candidate /
Digital Media and Analytics
Candidate – Chief Data Officer
It was a real treat to work with Harnham. My recruiter consistently went above and beyond to ensure that I navigated through the recruitment process as smooth as possible. I had been in contact with other professional at Harnham in the past and I can attest that the level of professionalism is always top-notch.
Candidate /
Chief Data Officer
Client – Director of People Operations
We’ve been collaborating with Harnham to recruit some key positions for our company, and they have been incredible partners. They team has been great and efficient. They understood our needs perfectly and provided us very talented candidates. We'll keep collaborating with them in the future. Thank you for your excellent job!
