Senior Data Engineer
London / £80000 - £95000 annum
INFO
£80000 - £95000
LOCATION
London
Permanent
Senior Data Engineer
Salary: £95,000
Location: Remote First (London Office)
Join a team where data engineering isn't just support, it's the engine. Build the models and pipelines that fuel innovation, accelerate growth, and elevate how the whole company thinks about data.
The Opportunity
This opportunity puts you at the centre of shaping the company's data landscape, giving you the ability to influence how teams access, understand, and trust their data. You'll take ownership of high-impact initiatives that drive better decision-making and unlock meaningful insights across the business.
As a senior contributor, you'll help define the long-term vision for data, ensuring it grows in a scalable, reliable, and forward-thinking direction. You'll mentor and support other engineers, fostering a culture of collaboration, learning, and empowerment. Ultimately, this role offers the chance to make a visible, lasting mark by elevating the organisation's data capabilities and enabling teams to work smarter and more independently.
The Role & Responsibilities
- Designs, builds, and maintains production-grade data pipelines for multiple internal teams.
- Develops and optimises central data models supporting analytics, ML, and operational workloads.
- Works with Databricks, AWS, dbt, Airflow, and Looker as part of a modern data stack.
- Leads complex technical initiatives and improves efficiency through CI/CD, observability, and tooling.
- Ensures data reliability at scale while mentoring junior engineers and fostering a collaborative, self‑service data culture.
Join as a Senior Data Engineer to build robust data pipelines, shape high-quality models with modern tech, and lead impactful engineering initiatives that empower data-driven decision-making, apply now.
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Business Intelligence Developer
Amsterdam
€70000 - €71000
+ Data Engineering
PermanentNetherlands
To Apply for this Job Click Here
Senior BI Developer – 6-Month Contract
Netherlands (On-site/Hybrid)
Global FMCG Organisation
We are partnering with a leading global FMCG organisation to appoint an experienced Senior BI Developer on an initial 6-month contract. This is a fantastic opportunity to work within a fast-paced, data-driven environment supporting commercial and operational decision-making across international markets.
The Role
As a Senior BI Developer, you will play a critical role in transforming complex data into actionable insights for senior stakeholders across sales, marketing, supply chain, and finance. You will work closely with cross-functional teams to design, build, and optimise scalable BI solutions that drive business performance.
Key Responsibilities
- Design, develop, and maintain robust BI dashboards and reporting solutions
- Translate business requirements into scalable data models and visualisations
- Work with large, complex datasets across commercial and operational domains
- Partner with senior stakeholders to deliver actionable insights
- Optimise ETL processes and ensure data integrity and governance standards
- Support strategic decision-making through advanced analytics and performance reporting
Required Experience
- Proven experience as a Senior BI Developer in a global environment
- Strong background within FMCG (highly preferred) or retail
- Experience working with commercial data (sales, trade promotions, pricing, supply chain, etc.)
- Advanced proficiency in BI tools (e.g., Power BI, Tableau, or similar)
- Strong SQL skills and experience with modern data platforms
- Ability to operate effectively in a fast-paced, international setting
- Based in the Netherlands (essential)
Preferred Profile
- Experience working with global or multi-market stakeholders
- Strong communication skills with the ability to influence senior leadership
- Hands-on, proactive, and delivery-focused mindset
- Immediately available or available at short notice
Contract Details
- Initial 6-month contract (potential extension)
- Competitive daily rate
- Hybrid working model (Netherlands-based)
If you are a senior-level BI professional with FMCG or retail experience and are looking for your next contract opportunity within a global organisation, we would love to hear from you.
To Apply for this Job Click Here
Lead GCP Data Engineer
London
£80000 - £90000
+ Data Engineering
PermanentLondon
To Apply for this Job Click Here
Lead GCP Data Engineer
New Malden (Hybrid, approx. 4 days per month onsite)
£85,000 to £90,000 plus up to 30 percent bonus
This is an opportunity to take ownership of a brand‑new GCP data platform and shape the engineering standards from the ground up. You will join a growing data function at a pivotal moment, playing a key role in a major cloud migration while influencing best practice across the team.
The Company
They are a technology‑driven organisation within the insurance space, focused on making data‑led decisions and building modern, scalable systems. Their mission is centred around delivering fast, accurate and accessible insurance experiences for a wide range of customers. With strong investment and a clear roadmap, they continue to enhance their predictive capabilities and data platform maturity. The environment is collaborative, outcome‑focused and built for people who enjoy autonomy and ownership.
The Role
As Lead GCP Data Engineer, you will
* Act as the in‑house GCP expert, guiding design decisions and engineering standards.
* Lead end‑to‑end delivery of data products, from ingestion through to transformation and analytical layers.
* Build and maintain production‑grade pipelines across batch and streaming workloads.
* Work closely with internal stakeholders to deliver reliable, high‑quality datasets.
* Support the Azure‑to‑GCP migration, ensuring data sources are correctly transformed and integrated.
* Mentor engineers and help uplift best practice across the team.
* Operate within Agile ways of working, contributing to planning, ceremonies and continuous improvement.
Your Skills and Experience
You will need:
* Strong commercial experience as a Data Engineer working on production‑grade pipelines.
* Deep hands‑on experience with GCP, including BigQuery, Cloud Storage, Cloud Run, Dataflow, Cloud Composer, and streaming technologies such as Kafka.
* Strong capability in dbt or Dataform and familiarity with medallion architecture.
* Ability to design robust ingestion patterns across multiple data types.
* Experience with Terraform or similar IaC approaches.
* Clear communication skills and a value‑focused engineering mindset.
* Experience operating within Agile teams.
Nice to have:
* GCP certifications.
* Experience working in regulated environments.
What They Offer
* £80,000 to £90,000 base salary.
* Up to 30 percent annual bonus.
* Hybrid working with only four days per month onsite.
* Strong pipeline of projects including a cloud migration and new platform build.
* Clear progression opportunities as the team scales.
* A positive, supportive culture with an emphasis on trust and autonomy.
How to Apply
If this sounds like the right next step, apply now to register your interest.
To Apply for this Job Click Here
Chief Data Scientist – TS/SCI Clearance
Washington
$325000 - $375000
+ Data Science & AI
PermanentWashington, District of Columbia
To Apply for this Job Click Here
Chief Data Scientist – TS/SCI Clearance
Washington, DC – 4 days/week onsite
$325,000 – $375,000 + Bonus + Benefits
Harnham is partnered with a cutting-edge government contractor in the DC area. They are looking for an AI leader with a strong background in building production-grade LLM / natural language platforms in federal spaces. This person will lead a growing part of the AI research team and partner with government agencies on projects across defense, cybersecurity, robotics and human language technology.
THE ROLE
As the Chief Data Scientist, you will be required to:
- Show technical leadership of machine learning and NLP models for production
- Work closely across different ML and engineering teams on both model development and production
- Own new projects supporting various business functions and product development
- Partner directly with the C-suite on data science direction
- Expand upon existing AI platforms
- Provide deep knowledge and leadership in data science
YOUR SKILLS AND EXPERIENCE
The successful Chief Data Scientist will likely have the following skills and experience:
- Top Secret Clearance required (TS/SCI Poly preferred)
- PhD in Computer Science or similar STEM field required
- History of owning development of scalable ML models in federal spaces
- Team management experience required
- Strong Python coding – ability to step in to support the team as needed
- High level of comfort partnering with executive teams; history of pitching new concepts / getting buy-in
- Experience with NLP preferred
- Defense or cybersecurity experience preferred
- Comfortable with LLMs, Generative AI and AI Agents
- Proven communicator with technical team, clients and senior stakeholders
THE BENEFITS
A competitive base salary of $325,000 – $375,000 + bonus + benefits
HOW TO APPLY
Please register your interest by sending your résumé to Tim Jonas via the Apply link on this page.
KEYWORDS
Team Leadership | Model Development | Machine Learning | Natural Language Processing | Production | Stakeholder Management | Innovation | Technology | Government | Federal Agencies | DoD | DoW | Department of War | Department of Defense | AI | Artificial Intelligence | LLM | Large Language Models | Agentic AI | AI Agents | Top Secret | Clearance | Cleared | Cybersecurity | Applied Research
To Apply for this Job Click Here
Senior Analyst – Digital – Contract
London
£350 - £400
+ Digital Analytics
ContractLondon
To Apply for this Job Click Here
Senior Analyst, Digital – Contract
Agency
London – 2-3 days per week in office
£350-£400 per day – Inside IR35
This is an exciting contract for a Senior Analyst to join a well established digital data team working on a major global account. You will play a key role in understanding how content and campaigns perform across multiple channels, supporting ongoing analytics projects and providing insights that drive real change.
The Company
They are a leading marketing and data driven agency group working across global brands. Their analytics function partners closely with creative, media and strategy teams to deliver high quality insight. You will join a collaborative environment where data is central to decision making. The work is fast paced, project focused and offers strong exposure to senior stakeholders.
The Role and Deliverables
- Deliver content analytics, assessing performance across paid media, web and social channels.
- Use content intelligence tools to deconstruct and analyse specific elements of creative content.
- Support web analytics projects using GA and contribute to broader customer journey analysis.
- Conduct deep dive analyses and support global reporting audits to identify gaps and best practice.
- Engage directly with market teams to understand requirements and provide clear updates.
- Contribute to multi channel campaign performance reviews and insight generation.
Your Skills and Experience
- Strong experience in content analytics, campaign analysis or digital performance insight.
- Confident using Excel and capable with SQL or Python for data manipulation.
- Good understanding of web analytics, particularly GA.
- Comfortable in agency environments and able to manage varied stakeholder expectations.
- Strong communication skills with the ability to consult and present insights effectively.
How to Apply
If you are interested in this Senior Analyst, Digital contract, please apply with your CV.
Senior Analyst / Digital / Analytics / Content / Campaigns / SQL / GA / Google Analytics / Python
To Apply for this Job Click Here
Ecommerce Trading Manager – Contract
London
£500 - £600
+ Digital Analytics
ContractLondon
To Apply for this Job Click Here
Ecommerce Trading Manager
Marketplace Platform
London
£500-£600 per day – Outside IR35
This is an opportunity to join a fast moving marketplace platform at the centre of a major growth phase. You will play a pivotal role in shaping how they optimise marketing performance, customer acquisition and trading outcomes across a high volume ecommerce environment.
The Company
They are a leading, tech driven marketplace platform operating at scale across multiple customer segments. Their business moves quickly, and they rely on data, collaboration and clear commercial thinking to stay ahead. As they continue to grow, they need specialist trading expertise to help them maximise the performance of their marketing investment. You will join an ambitious team where insights and fast decision making directly influence trading outcomes.
The Role and Deliverables
- Scrutinise marketing channel performance to ensure activity delivers strong P&L and order volume outcomes.
- Challenge the weekly trading plan to ensure all activity aligns with wider quarterly strategy.
- Activate and adjust marketing levers to support short term trading needs while maintaining commercial discipline.
- Analyse user base dynamics and identify where targeted marketing actions can lift underperforming segments.
- Build a deep understanding of customer conversion funnels, collaborating with other trading leads.
- Work with operations teams to reduce spend when capacity is tight, protecting margin and ensuring responsible commercial decisions.
Your Skills and Experience
- Strong experience using data to influence trading decisions and improve marketing efficiency.
- Confident working cross functionally and creating clarity for stakeholders with different priorities.
- Able to simplify complex commercial data into clear actions that support daily trading needs.
- Deep understanding of P&L drivers and how to optimise budgets for long term customer value.
- Proactive mindset with the ability to make fast, high quality decisions in a fast paced environment.
How to Apply
If you are interested in this Ecommerce Trading Manager contract, please apply with your CV.
Ecommerce Trading Manager / Marketplace Trading / Marketing Performance / Customer Acquisition / Digital Trading / Commercial Optimisation / Conversion Funnel Analysis / Data Driven Marketing
To Apply for this Job Click Here
Product Analyst (Contract)
London
£450 - £450
+ Advanced Analytics & Marketing Insights
ContractLondon
To Apply for this Job Click Here
Product Analyst
London
Senior Product Analyst
£450 Per Day (Inside IR35)
6 Month Contract
ASAP start
This is an opportunity to join a high‑impact product team during a period of accelerated experimentation and decision making. You will play a key role in shaping product outcomes by delivering clear, rigorous analysis that directly informs strategic choices.
The Company
They are a well-known consumer-facing organisation operating at scale across international markets. With a strong focus on product innovation, they are investing heavily in experimentation to drive customer engagement and growth. You will join a collaborative environment where data is central to decision making and where analytical excellence is genuinely valued.
The Role and Deliverables
- Deliver end-to-end analytical work, from approach definition to insight delivery.
- Query, validate and interpret complex datasets using SQL.
- Support experimentation analysis including metric definition, results interpretation and recommendations.
- Partner with product and engineering teams to clarify decision needs and ensure analytical rigour.
- Produce concise written readouts and stakeholder-ready summaries.
- Contribute to templates, documentation or reusable analytical frameworks.
Your Skills and Experience
- Strong SQL capability with experience handling complex joins, aggregations and data validation.
- Solid understanding of experimentation, A/B testing and statistical principles.
- Experience working in fast-moving product environments.
- Ability to work with messy or incomplete data.
- Able to clearly communicate findings to non-technical stakeholders.
- Comfortable delivering independently as a contractor, including working two days per week in person.
How to Apply
Register your interest by sending your CV to Ananya Gupta via the Apply Link on this page.
To Apply for this Job Click Here
Lead Data Scientist
Leicester
£60000 - £75000
+ Data Science & AI
PermanentLeicester, Leicestershire
To Apply for this Job Click Here
Lead Data Scientist – Leicester x2 days a week
We are working with a leading ecommerce company who are looking to add a Lead Data Scientist to their team. This role will involve the line management of 2 junior data scientists and will be interacting with stakeholders often.
The role will sit within a Marketing Science department and you will work on customer and marketing data including customer churn, segmentation, campaign analysis and marketing effectiveness across ads.
Required:
- Strong leadership and communication skills
- Ability to work in a fast paced environment
- Strong Python & SQL skills
- 4+ years in a Data Science position
To Apply for this Job Click Here
MMM Marketing Analytics Manager
London
£600 - £650
+ Advanced Analytics & Marketing Insights
ContractLondon
To Apply for this Job Click Here
Marketing Analytics Manager
London, Inside IR35
This is an excellent opportunity to take ownership of a high profile marketing effectiveness programme for a global digital business. You will shape their approach to marketing measurement while remaining deeply hands on with the analytics that drive major investment decisions.
The Company
They are a well known digital brand operating at scale across multiple markets and channels. Data, experimentation and performance form the backbone of their decision making. As they continue to grow, they are investing heavily in marketing science to better understand what drives impact. This contract plays a central role in that effort, directly influencing key commercial and media strategies.
The Role and Deliverables
* Lead the marketing analytics workstream, defining the roadmap for MMM and broader effectiveness measurement.
* Build, implement and refine MMM methodologies to quantify media and key growth drivers.
* Use SQL to develop and maintain robust datasets and pipelines that support modelling and reporting.
* Translate complex modelling outputs into clear, actionable insights for senior marketing, commercial and finance stakeholders.
* Partner with media, performance marketing and marketplace teams to inform channel mix, budget allocation and campaign planning.
* Deliver dashboards, frameworks and playbooks that support ongoing investment decisions beyond the duration of the contract.
Your Skills and Experience
* Strong experience delivering marketing analytics projects in complex digital environments.
* Deep, hands on expertise in building and interpreting MMM.
* Confident SQL skills with the ability to extract, manipulate and quality check large datasets.
* Experience working with media data across brand and performance channels.
* Ability to communicate analytical concepts clearly and influence senior stakeholders.
* Collaborative working style with the ability to partner across marketing, data, product and finance.
How to Apply
If this freelance role sounds like the right next project for you, please apply today.
To Apply for this Job Click Here
Lead Data Engineer
Newcastle upon Tyne
£90000 - £110000
+ Data Engineering
PermanentNewcastle upon Tyne, Tyne and Wear
To Apply for this Job Click Here
Lead Data Engineer
£90,000 – £110,000
Remote (UK Only)
This is a standout opportunity to take technical ownership of a modern data engineering function. You will shape data architecture, build high‑impact ETL pipelines, and play a key role in developing both the platform and the team as they enter their next phase of growth.
THE COMPANY
They are a high‑growth online gambling and sports betting platform backed by significant recent investment and focused on delivering an intuitive, mobile‑first user experience. The environment is modern, engineering‑driven, and designed for people who enjoy solving complex technical problems in a fast‑moving setting.
THE ROLE
As a Lead Data Engineer, you will take charge of a Data Engineering team focused on data ingestion and modelling.
Specifically, you can expect to be involved in the following:
- Leading the design, build and optimisation of ETL pipelines and ingestion frameworks.
- Owning core data engineering solutions across modelling, transformation and orchestration.
- Acting as a technical lead while providing light people leadership to a growing team.
- Collaborating closely with stakeholders to shape data architecture and best practice.
- Driving high coding standards and contribute to long‑term platform scalability.
SKILLS AND EXPERIENCE
The successful Lead Data Engineer will have the following skills and experience:
- Strong commercial experience working as a Data Engineer in AWS.
- Solid programming skills in Python and strong SQL capability.
- Exposure to orchestration tools such as Airflow or Dagster.
- Experience with modern data warehouses such as Snowflake, Redshift or BigQuery.
- Infrastructure‑as‑code experience, ideally Terraform or Pulumi.
BENEFITS
The successful Lead Data Engineer will receive the following benefits:
- Salary between £90,000 – £110,000 – depending on experience.
- Fully remote work.
HOW TO APPLY
Please register your interest by sending your resume to Majid Latif via the Apply link on this page.
To Apply for this Job Click Here
Lead Data Engineer
Leeds
£90000 - £110000
+ Data Engineering
PermanentLeeds, West Yorkshire
To Apply for this Job Click Here
Lead Data Engineer
£90,000 – £110,000
Remote (UK Only)
This is a standout opportunity to take technical ownership of a modern data engineering function. You will shape data architecture, build high‑impact ETL pipelines, and play a key role in developing both the platform and the team as they enter their next phase of growth.
THE COMPANY
They are a high‑growth online gambling and sports betting platform backed by significant recent investment and focused on delivering an intuitive, mobile‑first user experience. The environment is modern, engineering‑driven, and designed for people who enjoy solving complex technical problems in a fast‑moving setting.
THE ROLE
As a Lead Data Engineer, you will take charge of a Data Engineering team focused on data ingestion and modelling.
Specifically, you can expect to be involved in the following:
- Leading the design, build and optimisation of ETL pipelines and ingestion frameworks.
- Owning core data engineering solutions across modelling, transformation and orchestration.
- Acting as a technical lead while providing light people leadership to a growing team.
- Collaborating closely with stakeholders to shape data architecture and best practice.
- Driving high coding standards and contribute to long‑term platform scalability.
SKILLS AND EXPERIENCE
The successful Lead Data Engineer will have the following skills and experience:
- Strong commercial experience working as a Data Engineer in AWS.
- Solid programming skills in Python and strong SQL capability.
- Exposure to orchestration tools such as Airflow or Dagster.
- Experience with modern data warehouses such as Snowflake, Redshift or BigQuery.
- Infrastructure‑as‑code experience, ideally Terraform or Pulumi.
BENEFITS
The successful Lead Data Engineer will receive the following benefits:
- Salary between £90,000 – £110,000 – depending on experience.
- Fully remote work.
HOW TO APPLY
Please register your interest by sending your resume to Majid Latif via the Apply link on this page.
To Apply for this Job Click Here
Senior AI/ML Engineer
London
£106822.68 - £123256.94
+ Data Science & AI
PermanentEngland
To Apply for this Job Click Here
Senior AI/ML Engineer
Fully Remote
Competitive salary between 130,000 to 150,000 USD base salary (paid in GBP) + equity + bonus
No sponsorship available
A standout opportunity to join a high‑growth technology business building advanced AI features into a market‑leading analytics platform. This role is ideal for someone who loves end‑to‑end machine learning, enjoys experimenting with the latest AI and LLM tools, and wants to work in a fast‑moving product environment where models directly impact customers.
The Company
They are a well‑funded, fully remote, product‑led technology organisation operating in a highly data‑rich domain. Their platform provides deep analytical insights to help customers discover opportunities, make informed decisions, and protect their portfolios. With strong backing, global reach and an ambitious roadmap, they are investing heavily in AI and expanding their senior engineering capability. The culture values transparency, speed, curiosity, ownership and simplicity.
The Role
You will join a small, senior team focused on building AI‑powered features that sit at the heart of the product.
Your work will involve
- Creating and scaling machine learning models across large and complex datasets
- Conducting high‑quality exploratory data analysis and shaping modelling approaches
- Working end‑to‑end across data, modelling, evaluation and integration with engineering
- Experimenting with new AI and LLM tooling to influence the product roadmap
- Contributing to labelling, behaviour modelling and intelligence features
- Collaborating closely with product and engineering to ship AI features that drive real customer value
Your Skills and Experience
- Strong commercial experience in Python for data science and machine learning
- Confidence working end‑to‑end across the ML lifecycle, including EDA and best‑practice DS methodology
- Experience or interest in GCP
- Genuine interest in the crypto, blockchain or financial data space
- Curiosity for modern AI and LLMs, with evidence of experimentation or personal projects
- Comfortable working in product‑focused environments and contributing to engineering‑ready solutions
- Start‑up experience is beneficial; consultancy backgrounds are less suited to this role
What They Offer
- Competitive salary between 130,000 to 150,000 USD base salary, paid in GBP
- Performance‑based bonus
- Equity with a four‑year vesting schedule
- Fully remote working, with once a year meetups across EMEA and APAC
- A high‑impact role in a growing AI team with strong technical leadership
How to Apply
If you are excited by the opportunity, please apply with your CV or email me at
To Apply for this Job Click Here
Lead Data Engineer
Birmingham
£90000 - £110000
+ Data Engineering
PermanentBirmingham, West Midlands
To Apply for this Job Click Here
Lead Data Engineer
£90,000 – £110,000
Remote (UK Only)
This is a standout opportunity to take technical ownership of a modern data engineering function. You will shape data architecture, build high‑impact ETL pipelines, and play a key role in developing both the platform and the team as they enter their next phase of growth.
THE COMPANY
They are a high‑growth online gambling and sports betting platform backed by significant recent investment and focused on delivering an intuitive, mobile‑first user experience. The environment is modern, engineering‑driven, and designed for people who enjoy solving complex technical problems in a fast‑moving setting.
THE ROLE
As a Lead Data Engineer, you will take charge of a Data Engineering team focused on data ingestion and modelling.
Specifically, you can expect to be involved in the following:
- Leading the design, build and optimisation of ETL pipelines and ingestion frameworks.
- Owning core data engineering solutions across modelling, transformation and orchestration.
- Acting as a technical lead while providing light people leadership to a growing team.
- Collaborating closely with stakeholders to shape data architecture and best practice.
- Driving high coding standards and contribute to long‑term platform scalability.
SKILLS AND EXPERIENCE
The successful Lead Data Engineer will have the following skills and experience:
- Strong commercial experience working as a Data Engineer in AWS.
- Solid programming skills in Python and strong SQL capability.
- Exposure to orchestration tools such as Airflow or Dagster.
- Experience with modern data warehouses such as Snowflake, Redshift or BigQuery.
- Infrastructure‑as‑code experience, ideally Terraform or Pulumi.
BENEFITS
The successful Lead Data Engineer will receive the following benefits:
- Salary between £90,000 – £110,000 – depending on experience.
- Fully remote work.
HOW TO APPLY
Please register your interest by sending your resume to Majid Latif via the Apply link on this page.
To Apply for this Job Click Here
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