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Machine Learning Engineer
London | £500-600 Outside IR35 | 6 month initial contract | Hybrid 2-3
This is an exciting opportunity to join a fast-growing startup at a pivotal stage of its journey. You’ll play a key role in shaping and delivering machine learning solutions that directly influence product development and business growth. The environment is fast-paced, collaborative, and ideal for someone who enjoys building and deploying impactful AI solutions from the ground up.
The Company
They are an ambitious technology startup experiencing significant growth and investment. With a strong focus on innovation, they are leveraging machine learning to solve complex business challenges and create scalable products. Their leadership team combines deep technical expertise with a clear commercial vision, creating an environment where engineers can make a tangible impact. This contract engagement offers the chance to work on meaningful projects within a highly collaborative team.
The Role and Deliverables

• Design, build, and deploy machine learning models that support key product and business objectives.
• Develop and maintain scalable ML pipelines and production-ready systems.
• Collaborate closely with software engineers, data professionals, and product stakeholders.
• Optimise model performance, reliability, and monitoring processes.
• Contribute to the implementation of best practices across MLOps and machine learning engineering.
• Deliver robust, well-documented solutions within an agile development environment.

Your Skills & Experience

• Strong experience building and deploying machine learning models in production environments.
• Proficiency in Python and the modern machine learning ecosystem.
• Experience developing scalable data pipelines and ML workflows.
• Strong understanding of cloud platforms such as AWS, Azure, or GCP.
• Experience with containerisation and deployment technologies, such as Docker and Kubernetes.
• Ability to balance technical excellence with commercial priorities in a fast-moving environment.
• Strong communication skills and experience collaborating with cross-functional teams.
• Comfortable working independently and delivering outcomes within a contract engagement.

How to Apply
If you’re a Machine Learning Engineer looking for a high-impact contract opportunity with a rapidly growing startup, apply today to learn more about the project and team.

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Senior Data Scientist
London | Outside IR35 £600-700 per day | 6 month initial contract | hybrid 3 days
This is a fantastic opportunity for a Senior Data Scientist to join a rapidly growing health technology business on a high-impact contract. You’ll work on data science initiatives that help drive better outcomes, influence product development, and support innovation across the organisation.

The Company
They are a fast-scaling health technology company focused on using data and analytics to improve decision-making and deliver meaningful outcomes. With continued growth and investment, they are expanding their data capabilities and looking for experienced professionals to help shape the next phase of their journey. You’ll join a collaborative team working on complex challenges within a purpose-driven environment.
The Role and Deliverables

• Develop and deploy advanced predictive and statistical models to address key business challenges.
• Analyse large, complex datasets to generate actionable insights.
• Work closely with product, engineering, and business stakeholders to translate requirements into data science solutions.
• Communicate findings and recommendations to both technical and non-technical audiences.
• Support the development of scalable analytics and machine learning workflows.
• Contribute to best practices across data science, experimentation, and model governance.

Your Skills & Experience

• Strong experience delivering end-to-end data science projects in commercial environments.
• Advanced Python and SQL skills for analytics and modelling.
• Experience building and deploying machine learning models.
• Strong understanding of statistical analysis, experimentation, and predictive modelling.
• Experience working with cloud platforms such as AWS, Azure, or GCP.
• Excellent stakeholder management and communication skills.

How to Apply
If you’re a Senior Data Scientist looking for a contract opportunity where you can make a measurable impact within a growing health technology business, apply today to learn more.

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Data & Software Engineer
Remote (UK) | Outside IR35 | £593 per day
This is an exciting opportunity to join a high-impact engineering project focused on commercial data, systems integration, and analytics. You’ll work on solutions that directly influence business decision-making, helping to improve how critical data is collected, processed, and delivered across the organisation.
The Company
They are a technology-driven organisation operating a large-scale digital platform with a significant user base. Their products generate substantial volumes of operational and commercial data, creating complex engineering challenges and opportunities. Data plays a central role in the business, with ongoing investment in reporting, system integrations, and decision-making capabilities. You will work alongside software engineers, data engineers, and analytics professionals on projects that deliver tangible business value.
The Role and Deliverables

• Process and manage commercial data relating to revenue and business performance.
• Build new integrations with external partners to improve data connectivity and accessibility.
• Develop integrations with internal systems to streamline data flows across the business.
• Collaborate with Data Engineers and Analytics teams to support reporting and performance insights.
• Work closely with Data Engineers on performance data initiatives.
• Deliver scalable backend solutions that improve the quality, availability, and usability of business-critical data.

Your Skills & Experience

• Strong commercial experience with PHP.
• Strong commercial experience with Python.
• Strong experience working with PostgreSQL.
• Proven backend engineering capability within production environments.
• Experience building and maintaining integrations and data-driven applications.
• Ability to collaborate effectively with engineering, analytics, and data teams.
• Exposure to Airflow is advantageous.
• Experience with Snowflake is beneficial.
• Experience working with AWS is desirable.

How to Apply
If you are a Data & Software Engineer with strong PHP, Python, and PostgreSQL expertise and are looking for your next contract opportunity, please apply with your latest CV. Initial contract duration is 6 months, with potential for extension, starting September 2026.

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Data & Software Engineer

£550-£590 per day | Outside IR35 | Fully Remote | 6-Month Contract

THE OPPORTUNITY

A well-established organisation is looking for an experienced Data & Software Engineer to join its technology team on an initial six-month contract.

The business is currently investing in its technology and data capabilities, with a number of projects underway to improve how information is collected, processed and shared across its systems.

You’ll join a collaborative engineering environment and work across a combination of backend development, data processing and systems integration, helping to build reliable and scalable solutions.

THE ROLE

This is a hands-on engineering position suited to someone who enjoys working across both software and data.

You’ll be responsible for developing backend solutions, connecting different systems and helping to improve the movement and availability of data across the wider technology estate.

You’ll work alongside engineers and other technical teams to deliver new functionality, improve existing platforms and support a range of ongoing development initiatives.

The role will give you exposure to a variety of technical challenges and the opportunity to have a tangible impact on the systems being developed.

KEY RESPONSIBILITIES

• Develop and maintain backend applications and services
• Work with data processing and data management solutions
• Build and maintain APIs and system integrations
• Connect internal systems and external platforms
• Improve the reliability, accessibility and quality of data
• Contribute to the development of existing applications and platforms
• Work closely with engineering and data-focused teams
• Translate technical and business requirements into practical solutions
• Identify opportunities to improve existing processes and systems
• Ensure solutions are scalable, maintainable and built to a high standard

EXPERIENCE REQUIRED

• Strong commercial experience with PHP
• Strong commercial experience with Python
• Excellent experience with PostgreSQL
• Strong background in Backend Engineering
• Experience developing and integrating APIs
• Experience working with multiple systems and data sources
• Comfortable working within complex technical environments
• Strong understanding of software engineering principles and best practices

DESIRABLE

• Airflow
• Snowflake
• AWS
• Data warehousing
• Modern data platforms
• Experience working closely with data or analytics teams

THE PERSON

We’re looking for an experienced engineer who can operate independently, take ownership of their work and work effectively with wider technical teams.

You’ll be comfortable dealing with complex requirements, working across different systems and finding practical solutions to technical challenges.

Experience working within a high-volume, data-heavy or technically complex environment would be beneficial, but candidates from a range of backgrounds will be considered.

CONTRACT DETAILS

• £550-£590 per day
• Outside IR35
• Fully Remote
• 6-month initial contract
• Potential for extension
• Immediate opportunity to make an impact within an established technology function

If you’re an experienced PHP/Python Backend Engineer with strong PostgreSQL experience, we’d be keen to speak with you.

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Data & Software Engineer

£550-£590 per day | Outside IR35 | Fully Remote | 6-Month Contract

THE COMPANY

A leading digital business operating within a highly data-driven online environment is seeking a Data & Software Engineer to support the development of critical commercial and operational data platforms.

This organisation processes large volumes of transactional, revenue, and user performance data, using these insights to drive key business decisions. As part of a growing engineering function, they are investing heavily in their data ecosystem and require an experienced contractor to support several high-priority initiatives.

Candidates from online gaming, iGaming, betting, gambling, esports, or other high-volume digital platforms are particularly encouraged to apply.

THE ROLE

As a Data & Software Engineer, you’ll work across backend engineering, data processing, and systems integration, helping to enhance platforms that provide commercial visibility across the business.

You’ll be responsible for building and maintaining data-driven applications, integrating external partners, and streamlining data exchange across internal systems. Working closely with Data Engineering and Analytics teams, you’ll help ensure critical reporting and performance metrics remain accurate, scalable, and fit for business decision-making.

This is an opportunity to work in a genuinely impactful role where your solutions will be used directly by stakeholders to shape commercial strategy and operational performance.

RESPONSIBILITIES

• Develop and maintain backend services supporting commercial reporting and operational data products
• Process and manage large-scale commercial and revenue datasets
• Build integrations with external partners and third-party platforms
• Develop integrations between internal systems to improve data accessibility and efficiency
• Collaborate with Data Engineers and Analytics teams on reporting and insight generation
• Support initiatives focused on user and performance data
• Improve data quality, reliability, and scalability across critical business systems
• Deliver enhancements to existing data and reporting platforms

SKILLS AND EXPERIENCE

Essential

• Strong commercial experience with PHP
• Strong commercial experience with Python
• Excellent PostgreSQL skills
• Proven Backend Engineering background
• Experience building APIs and system integrations
• Experience working within complex, data-intensive environments
• Strong understanding of software engineering best practices

Desirable

• Airflow
• Snowflake
• AWS
• Exposure to data warehousing and modern analytics platforms
• Experience supporting reporting, commercial analytics, or performance data solutions

IDEAL BACKGROUND

We’re especially interested in individuals with experience in:

• Online Gaming
• iGaming
• Betting & Gambling
• Sportsbook
• Esports
• High-transaction E-commerce
• Digital Marketplace Platforms
• Subscription-Based Businesses

You’ll have experience managing complex requests, integrating multiple data sources, and working in environments where business-critical decisions depend on accurate, timely data.

BENEFITS

• £550-£590 per day
• Outside IR35
• Fully Remote
• Initial 6-Month Contract
• Opportunity for extension
• High-impact role working with large-scale commercial and performance data

Interested? Apply now with your latest CV to discuss the opportunity in more detail.

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Job Title

Data Architect (Data Privacy)

Intro Harnham

Harnham is partnering with a technology-led organisation undergoing a major data transformation initiative. We are seeking a Data Privacy Architecture Consultant to help define the future state of their cloud data platform.

Intro client

Our client is investing heavily in modern data architecture, governance, and privacy capabilities. They are looking to establish a sustainable and scalable approach to managing customer data while enabling future analytics and AI initiatives.

Role Details

Role: Data Privacy Architecture Consultant
Location: Fully Remote (United States)
Pay: $70 to $95 per hour
Length: 6-month contract
Utilisation: 40 hours per week

Intro to role
This engagement focuses on designing a privacy-first architecture for a modern enterprise data platform. You will partner closely with data engineering and business stakeholders to define how customer identity should be managed while reducing the use of PII throughout analytical environments.
The outcome will be a detailed architectural blueprint, migration roadmap, and implementation recommendations that internal engineering teams can execute.

Key Responsibilities

• Design a privacy-focused target state architecture for analytics and reporting environments
• Define approaches for customer identity resolution, pseudonymization, and universal identifiers
• Create migration plans for existing warehouse assets and transformation models
• Assess impacts across reporting, analytics, operational systems, and downstream data products
• Define integration patterns between identity management services and cloud data platforms
• Produce implementation-ready technical documentation and architecture artefacts

Requirements: Must Have

• Strong experience designing privacy-centric data architectures
• Expertise in identity resolution, pseudonymization, or customer identity management
• Hands-on experience with Snowflake
• Strong dbt experience, including warehouse transformation and migration initiatives
• Experience delivering governance, privacy, or compliance-focused data programs
• Excellent stakeholder communication and documentation skills

Nice to Have

• Experience supporting AI-readiness initiatives
• Exposure to customer identity platforms or MDM solutions
• Experience designing deletion workflows or data subject rights processes
• Background in regulated industries

Outro

This is an opportunity to influence a long-term data platform strategy while solving complex privacy and governance challenges. If you enjoy designing scalable architectures that balance compliance, usability, and business value, we’d love to speak with you.

WE WILL NOT UTILIZE THIRD PARTIES FOR THIS SEARCH

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Data Architect

**we will NOT be utilizing agencies or third parties for this role**

Location: Fully Remote (United States)
Contract Length: 6 Months
Extension Potential: Yes
Rate: $80-$100 per hour

We are partnering with a technology-led organization undergoing a significant data transformation initiative to identify an experienced Data Architect (Data Privacy Focused). This engagement offers the opportunity to shape the future-state architecture of a modern cloud data platform, ensuring privacy, governance, and AI readiness are embedded at the core of the design.

Working closely with senior data and engineering stakeholders, you will be responsible for defining a scalable architecture that removes or minimizes customer personally identifiable information (PII) from analytical environments while maintaining business value and operational effectiveness.

Key Responsibilities

• Design a target-state data architecture that minimizes or removes customer PII from analytics environments.
• Define and implement a universal customer identifier strategy across the enterprise data estate.
• Provide expertise on identity resolution, pseudonymization, and privacy-centric data warehouse design.
• Develop a comprehensive migration strategy for existing warehouse tables and transformation models.
• Define integration requirements between the data platform and identity translation services.
• Assess the impact of architectural changes across reporting, analytics, and data products.
• Establish approaches for managing data subject deletion requests within the proposed architecture.
• Provide recommendations for integrating customer feedback and qualitative data sources.
• Produce detailed architectural designs, migration plans, and implementation-ready documentation for engineering teams.

Required Experience

• Demonstrated experience designing privacy-focused data architectures within enterprise environments.
• Deep expertise in identity resolution, pseudonymization, and customer identity management.
• Strong experience working with Snowflake and modern cloud-based data platforms.
• Proven knowledge of dbt and large-scale data warehouse migration programs.
• Experience delivering data governance, privacy, or regulatory compliance initiatives.
• Ability to produce detailed technical documentation and communicate effectively with both technical and non-technical stakeholders.
• Strong stakeholder management skills and the ability to balance governance, usability, and operational requirements.

Opportunity Highlights

• Fully remote engagement within the United States.
• Opportunity to influence a high-profile enterprise data transformation program.
• Direct collaboration with senior data and engineering leadership.
• Exposure to complex challenges spanning data privacy, governance, AI enablement, and modern data architecture.

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