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Senior Backend Engineer

Los Angeles or San Francisco, CA (Hybrid) | Full-Time | Confidential Client

The Opportunity

We’re partnering exclusively with a pre-IPO AI technology unicorn approaching its Series D. The company builds AI-powered consumer experiences at massive scale, sitting at the intersection of real-time AI inference, interactive media, and high-throughput compute. With a clear pathway to widespread consumer adoption, this is a rare opportunity to join a high-caliber engineering team ahead of a significant liquidity event.

About the Role

The team is looking for a Senior Backend Engineer who can operate across two distinct but complementary challenges. The first is building the reliable service layer that powers the product with clean APIs, authentication, microservices, and data models. The second is engineering the high-compute orchestration layer that drives AI-generated output at scale: coordinating complex multi-stage inference pipelines, managing GPU resources, and moving large model artifacts efficiently. Strong CS fundamentals, deep concurrency experience, and the ability to own work from design to deployment are essential. This is a hybrid role based in Los Angeles.

What You’ll Be Doing

• Design and build backend services, APIs, and microservices powering core product functionality
• Own authentication flows, data models, and service-to-service communication patterns
• Architect and implement orchestration systems for multi-step, high-compute pipelines end to end
• Manage GPU cluster scaling and resource allocation to support real-time, high-throughput workloads
• Optimize data movement and model artifact delivery at scale
• Extend internal observability tooling and integrate with Datadog and custom monitoring systems
• Collaborate with ML and infrastructure teams to improve pipeline reliability and latency
• Contribute to infrastructure-as-code and cloud resource management (Kubernetes, ECS, Terraform)
• Drive technical design, code review, and architectural decisions across backend systems
• Mentor engineers and raise the bar on engineering quality and clarity

What They’re Looking For

• 3+ years of backend engineering experience building real production systems
• Deep, substantive proficiency in TypeScript, Go, or Python applied to backend services and APIs
• Strong grasp of web fundamentals: HTTP, networking, how browsers and services communicate
• Solid concurrency experience thread safety, resource management, scaling concurrent workloads
• Experience designing and building microservices and service-oriented architectures
• Hands-on experience with REST and/or gRPC service design
• Some exposure to infrastructure orchestration with Kubernetes, ECS, or similar
• Ability to take a high-level design brief and independently drive it to production
• Strong communicator who can clearly articulate trade-offs and gaps in their own systems
• Familiarity with GPU cluster management or ML inference infrastructure
• Experience orchestrating heavy-compute or multi-stage compute pipelines
• Hands-on with Terraform or infrastructure-as-code at scale
• Exposure to Datadog, distributed tracing, or custom observability tooling
• Background in high-throughput, latency-sensitive consumer-scale systems

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Head of Data (ERP & Master Data)

(12-Month FTC)

London (Hybrid)
£90,000 – £95,000 + benefits

The Role

We’re working with a global consumer brand looking for a Head of Data to join on a 12-month fixed-term contract during a key transformation period.

You’ll lead a small team and take ownership of product and supply chain data, supporting an ERP implementation alongside BAU operations.

Key Responsibilities

• Lead and develop a team of 3 (Data Engineering & Master Data)
• Own product data (materials, dimensions, pricing and inventory/stock data)
• Drive data governance, quality, and structure
• Support ERP implementation and wider data transformation
• Work closely with tech, product, and supply chain teams

Requirements

• Experience leading data or master data teams
• Strong background in product + stock/inventory data
• Experience in B2C / consumer goods / retail environments
• Exposure to ERP systems
• Understanding of tools like Power BI, Tableau, SQL, or Python

If you are interested in the role, please apply. To follow up please message me on LinkedIn or email.

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Senior AI Engineer

London – 1-2x week in office

Salary: £80,000 – £90,000

This is an exciting opportunity to join a business that is investing heavily in AI and modern cloud technologies. You will play a key role in building AI‑driven products that have a direct impact on customer experience, operational efficiency and the future of their platform.

The Company

They are a tech‑forward insurance organisation with a strong focus on delivering smarter, more personalised digital products. Their teams combine data, engineering and customer expertise to create solutions that simplify complex challenges for their users. Innovation, collaboration and a flexible working culture are at the heart of how they operate. They continue to scale their AI capability and are looking for someone who can help shape this next phase of growth.

The Role

In this AI Platform Engineer role, you will:

* Design, build and operate AI‑first products that deliver measurable value.

* Develop and deploy production‑grade AI agents on GCP using ADK, integrating with internal systems via REST and JSON APIs.

* Build and maintain robust evaluation and monitoring frameworks, including online and offline testing, A/B experiments and performance dashboards.

* Integrate AI agent functionality with applications through MCP servers and reliable tool configurations.

* Develop secure and scalable RAG pipelines, including ingestion, text processing, metadata handling and vector search in GCP.

* Embed security, compliance, GDPR controls and best‑practice engineering with clear documentation and stakeholder collaboration.

Your Skills and Experience

To be successful, you will bring:

* Strong Python skills for backend services, SDKs, API development, authentication and testing.

* Hands‑on experience working with LLMs, embeddings, prompt engineering, tool calling and RAG design.

* Practical knowledge of GCP services including Vertex AI, Model Garden, BigQuery, Cloud Run and Google’s ADK.

* Experience with document and data processing using tools such as Apache Tika, plus storage or caching technologies like Postgres, Redis, GCS or BigQuery.

* Solid DevOps practices including CI/CD, Docker, observability and automated testing.

* A product‑led mindset with a strong understanding of security, IAM, auditability and defining success metrics.

What They Offer

* Opportunities to shape AI products from the ground up.

* A collaborative environment that encourages innovation and career progression.

How to Apply

If you are excited about building production‑ready AI systems and want to drive meaningful impact, please apply with your CV.

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Principal AI Engineer

Hybrid Working on Client Site

£100,000 to £130,000 plus bonus and benefits

This is a standout opportunity to shape and deliver cutting‑edge digital solutions that drive real operational impact. You will work directly with clients, embedding AI, advanced analytics, and digital tools into live environments and seeing your work translate into tangible outcomes.

The Company

This organisation is known for delivering meaningful, measurable change across both public and private sectors. They partner closely with clients to solve complex challenges using AI, data science, and digital innovation. Their culture is collaborative, low‑ego, and centred on developing exceptional talent. As they scale their digital capabilities, you will be joining a growing team with significant influence on its future direction.

The Role

* Identify high‑impact opportunities to apply AI, data science, advanced analytics, and digital tooling.

* Lead technical workstreams, including the design and delivery of machine learning solutions and digital tools.

* Work closely with client teams on the ground to embed solutions directly into operations.

* Guide multi‑disciplinary teams that combine people, processes, and technology to deliver sustainable results.

* Translate complex technical concepts into clear, actionable insights for non‑technical stakeholders.

* Mentor colleagues and help shape best‑practice approaches across digital programmes.

* Stay current with emerging technologies and bring innovative ideas into client delivery.

Client site travel is essential as you will drive change alongside client teams.

Your Skills and Experience

* Strong commercial experience taking digital ideas from concept through to operational impact.

* Deep capability in AI, data science, advanced analytics, or digital tooling.

* Ability to turn technical designs into practical, in‑operation solutions.

* Confident leading teams and managing stakeholders across technical and non‑technical backgrounds.

* Skilled at communicating complex ideas simply and clearly.

* A hands‑on, client‑centric approach with a focus on delivering measurable outcomes.

* Comfortable working on‑site with clients to drive change in real time.

What They Offer

* Clear progression pathways with structured development support.

* Exposure to high‑impact projects across diverse sectors.

* A collaborative digital community with access to the latest technologies.

How to Apply

If you are excited by the opportunity to deliver meaningful, data‑driven impact, please apply with your CV.

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Digital Analyst
London (Hybrid – 2x Days a Week in Office)
£35,000-£40,000

THE COMPANY

This is an opportunity to join a fast-growing data function within a global marketing and media group! Acting as the central data hub across a collective of agencies, the team delivers high-impact analytics and measurement solutions to some of the world’s biggest brands; you’ll be part of a small, highly collaborative team with strong visibility across the business, working closely with senior stakeholders and gaining exposure to a wide range of clients and marketing channels.

THE ROLE

This role is ideal for someone with a background in digital or marketing analytics who wants to deepen their technical skillset while maintaining a strong focus on insight delivery. You’ll sit at the intersection of analytics, tracking, and performance, supporting global clients with high-quality data and actionable insight.

Key responsibilities:

• Analyse website and campaign performance using GA4
• Build and optimise dashboards in Looker Studio for client reporting
• Implement and maintain tracking via Google Tag Manager (events, pixels, troubleshooting)
• Support analytics audits and ensure data quality best practices
• Monitor digital and paid media performance to identify trends and opportunities
• Present insights to internal stakeholders across multiple agency teams

YOUR SKILLS AND EXPERIENCE

• Hands-on experience with GA4
• Strong working knowledge of Google Tag Manager (event tracking, implementation)
• Experience building dashboards in Looker Studio (or similar tools)
• Background in a digital, media, or performance marketing environment
• Strong communication skills – confident presenting insights to stakeholders
• Proactive mindset with a desire to learn and develop

Nice to have:

• Understanding of paid media metrics (PPC, paid social, display)
• Exposure to wider MarTech or analytics too

THE BENEFITS

• £35,000-£40,000

HOW TO APPLY

Please register your interest by sending your CV to Adam Osborne at Harnham via the Apply link on this page.

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Digital Analyst
Leeds (Hybrid – 2x Days a Week in Office)
£35,000-£40,000

THE COMPANY

This is an opportunity to join a fast-growing data function within a global marketing and media group! Acting as the central data hub across a collective of agencies, the team delivers high-impact analytics and measurement solutions to some of the world’s biggest brands; you’ll be part of a small, highly collaborative team with strong visibility across the business, working closely with senior stakeholders and gaining exposure to a wide range of clients and marketing channels.

THE ROLE

This role is ideal for someone with a background in digital or marketing analytics who wants to deepen their technical skillset while maintaining a strong focus on insight delivery. You’ll sit at the intersection of analytics, tracking, and performance, supporting global clients with high-quality data and actionable insight.

Key responsibilities:

• Analyse website and campaign performance using GA4
• Build and optimise dashboards in Looker Studio for client reporting
• Implement and maintain tracking via Google Tag Manager (events, pixels, troubleshooting)
• Support analytics audits and ensure data quality best practices
• Monitor digital and paid media performance to identify trends and opportunities
• Present insights to internal stakeholders across multiple agency teams

YOUR SKILLS AND EXPERIENCE

• Hands-on experience with GA4
• Strong working knowledge of Google Tag Manager (event tracking, implementation)
• Experience building dashboards in Looker Studio (or similar tools)
• Background in a digital, media, or performance marketing environment
• Strong communication skills – confident presenting insights to stakeholders
• Proactive mindset with a desire to learn and develop

Nice to have:

• Understanding of paid media metrics (PPC, paid social, display)
• Exposure to wider MarTech or analytics too

THE BENEFITS

• £35,000-£40,000

HOW TO APPLY

Please register your interest by sending your CV to Adam Osborne at Harnham via the Apply link on this page.

To Apply for this Job Click Here

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Credit Risk Manager

Up to £70,000

Hybrid

West Midlands

The Company

We are currently recruiting for a Risk Manager on behalf of one of our leading lending clients. They are a major player in the unsecured lending market and continue to expand their credit risk and portfolio management capabilities. In this role, you will take responsibility for a key credit risk portfolio, using analytics and insight to drive performance and improve strategy.

The Role

As a Risk Manager, you will be:

• Reporting on portfolio performance, risk trends and key insights
• Using SAS/SQL to assess the portfolio, forecasting, and bad‑debt exposure.
• Helping shape and develop credit risk strategies across acquisitions, pricing and existing customer management.
• Understanding and interpreting CRA and third‑party data to inform strategy decisions.
• Reviewing dashboards, MI and forecasting to identify optimisation opportunities across the portfolio.
• Working with a dedicated data scientist to support modelling inputs and strategic enhancements.

Your Skills and Experience

To be successful as a Risk Manager, you will need:

• Experience in credit risk or portfolio analytics within consumer lending.
• Strong SAS and/or SQL experience
• Ideally experience with Python
• Solid understanding of CRA data, MI and credit risk frameworks.
• Strong stakeholder management and confident communication skills.
• Experience working with portfolio analytics, forecasting and risk controls.

Benefits

Up to £70,000 + benefits package

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Senior Credit Risk Analyst

Up to £55,000

Hybrid

West Midlands

The Company

I am hiring a Senior Credit Risk analyst for lending business that leads the way on all types of unsecured lending for a large consumer base across the UK. Within this role you will help drive credit risk strategy using analytics to drive companywide profitability.

The Role

As a Senior Credit Risk Analyst, you will be:

• Reporting on credit risk insights and trends to senior stakeholders
• Using analytics skills to improve credit risk strategies
• Helping manage the credit risk customer lifecycle
• Spotting trends to find new ways to increase profitability for credit risk
• Developing new credit risk strategies across the business for acquisitions and existing customers.
• Working with and presenting to senior stakeholders daily within the role.

Your skills and experience:

To be successful as a Senior Credit Risk Analyst, you will need:

• Strong experience with SAS and/or SQL
• Experience as a credit risk analyst in an analytical position
• Experience developing credit strategies for acquisitions, ECM, or collections.
• Experience working in financial services
• Strong stakeholder management & excellent communication skills
• STEM Degree from a top university

Benefits

Up to £55,000 + benefits package

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Senior Fraud Analyst – (Analytics)

Up to £55,000

Hybrid

West Midlands

Company:

One of our fintech banking clients is looking for a strong Senior Fraud Strategy Analyst to join their fraud analytics function where you will be developing fraud strategies and providing insights on fraud performance using tools like SAS, SQL, and Python.

Responsibilities:

As a Senior Fraud Analyst, you will be responsible for:

• Crafting and implementing effective fraud strategies to mitigate risks and protect different clients and customers
• Utilizing SAS, SQL, and Python to analyse data, identify fraud patterns, and develop new fraud rules.
• Managing and mitigating various types of fraud with a focus on application fraud.
• Collaborating with multiple vendors to enhance fraud prevention measures and ensure seamless integration.
• Leveraging your experience in the UK banking sector to align strategies with regulatory requirements and industry best practices.

Key Requirements:

• Extensive experience in developing comprehensive fraud strategies.
• Proficiency in SAS, SQL, and/or Python
• In-depth knowledge of different types of frauds, ideally with experience in Application Fraud.
• Experience working with different fraud systems (Ideally Hunter & Cifas)

Salary: Up to £55,000 Per Year + Strong Benefits Package

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Data Scientist – Credit Risk

Up to £75,000

Remote (UK Based)

The Company

They are a global, fully remote fintech working across payments and credit risk. Their teams operate internationally collaborating on high impact risk and credit solutions. They use Python, SQL and GenAI tools heavily across the business.

The Role

* Deliver credit risk and fraud analytics across partner portfolios.

* Build predictive models and rules in Python and SQL.

* Develop and optimise credit strategies including pricing, limits and segmentation.

* Support bespoke insurance and risk solutions for complex merchant portfolios.

* Work closely with data, product and commercial teams.

Your Skills and Experience

* Strong commercial experience with Python and SQL.

* Background in credit risk or fraud analytics.

* Experience building supervised models.

* Comfortable solving open problems and communicating insight clearly.

* Interest in both analytics and modelling.

What They Offer

* Salary up to £75,000 + Benefits

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Head of Data (Maternity Cover)
London
£90,000 to £100,000 plus benefits

This is a standout opportunity to lead a data function during a pivotal digital transformation. You will play a key role in shaping product and supply chain data foundations, guiding an ERP overhaul, and driving data quality across an international consumer brand. If you enjoy delivering structure, enabling teams, and building scalable data ecosystems, this role offers real impact.

The Company
They are a global consumer brand within the comfort‑focused footwear market, operating across ecommerce, wholesale, and international distribution channels. With a strong engineering ethos and a collaborative, people‑centred culture, they are investing heavily in data, systems, and digital growth. You will join a supportive environment with a clear transformation roadmap and strong cross‑functional engagement.

The Role
You will lead the data function through a period of change, ensuring stable, high‑quality product and supply chain data across the business. Expect to:
* Lead and develop a team covering data engineering and master data.
* Oversee product, stock, and supply chain data structures and governance.
* Manage data flows across SmartSheet, the ERP environment, and the Snowflake data lake.
* Support the NetSuite implementation, including testing, readiness, and post go‑live stability.
* Drive improvements in data pipelines, integration, governance, and architecture.
* Partner closely with finance, technology, product, and supply chain teams to ensure data accuracy and availability.
* Support the migration from Tableau to Power BI and enable reliable BI reporting across the organisation.

Your Skills and Experience
You will bring strong commercial experience in:
* Product‑related data, including materials, dimensions, SKUs, and pricing.
* Inventory, stock, or supply chain data environments.
* Data leadership within B2C, retail, consumer goods, footwear, apparel, or similarly complex product‑led sectors.
* ERP environments, ideally with exposure to NetSuite or major ERP transformation programmes.
* Leading small teams and managing cross‑functional data requirements.
* Understanding data engineering concepts, pipelines, integrations, and BI tooling.
Experience with Power BI, Snowflake, SmartSheet, Power Query, SQL, or Python is beneficial.

What They Offer
* £90,000 to £100,000 base salary.
* Hybrid working with three days in the office.
* A collaborative, social culture with strong onboarding and structured handover.
* A mix of BAU responsibilities and high‑visibility project delivery.
* A range of wellbeing, lifestyle, and professional development benefits.

How to Apply
If you are ready to lead a data function through a transformative period and want to play a key role in shaping data excellence, please apply today.

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Marketing Technology Executive – Digital Marketing Data & Feeds

Location: London (Hybrid – approx. 1 day per week on-site)
Salary: £45,000-£50,000 + benefits
Start: ASAP (urgent hire)

About the Role

We’re looking for a hands-on Marketing Technology Executive to help deliver and evolve the technical digital marketing capabilities across inbound and outbound channels. This role sits within a growing digital marketing function and focuses on building, managing, and optimising the product and stock data pipelines that power marketing activity across multiple platforms.

You’ll work closely with Marketing, Product, and Engineering teams to ensure product data is accurate, reliable, and effectively integrated into the MarTech ecosystem. If you enjoy solving data flow challenges, improving feed quality, and enabling smarter marketing activation, this is a great fit.

What You’ll Do

• Develop, maintain, and optimise product and stock data feeds using tools like Athos Commerce and technologies such as Kafka and Snowflake.
• Manage real-time feed integrations with platforms including Meta, TikTok, Salesforce Marketing Cloud, and others.
• Support ETL processes to ensure accurate and compliant data sharing across marketing tools and dashboards.
• Validate and monitor product/stock data to ensure accuracy, completeness, and performance.
• Run and report on feed tests, identifying opportunities to improve marketing efficiency.
• Work collaboratively with internal teams to ensure smooth delivery of data-driven projects.

What We’re Looking For

Essential:

• Experience managing product and stock feeds for digital commerce (Athos, Mulesoft, Boomi, etc.).
• Integration of feeds into digital marketing platforms.
• Knowledge of ETL processes and data governance best practices.
• Understanding of how digital channels use feed data for targeting, optimisation, and reporting.
• Ability to translate technical requirements into marketing deliverables.

Desirable:

• Experience with APIs (Postman, Datadog, Splunk, Boomi).
• Working knowledge of GCP, data pipeline tools (Funnel, Datorama) or Snowflake.
• Experience in enterprise retail, ecommerce, or marketplace environments.
• Familiarity with real-time data architecture (e.g., Kafka).

What You’ll Bring

• Problem-solving mindset and ownership of tasks from start to finish.
• Ability to simplify complex problems and communicate clearly with stakeholders.
• Curiosity, adaptability, and willingness to try new approaches.
• Strong relationship-building skills across technical and non-technical teams.
• A proactive approach to improving processes and marketing effectiveness.

Working Model

Hybrid, with flexibility-typically one day per week in the London office, but open to once every two weeks depending on needs.

Find out more and apply via the link below.

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