Senior Full Stack Engineer

London (Hybrid – 2 days/week)

Full-time, Permanent

Up to £85k (DOE)

Build products that power real-world data decisions

We’re looking for a Senior Full Stack Engineer to help shape and scale a suite of data-driven products used across the media and analytics ecosystem, including Barb Ads Hub, NMO XCM, and a Data Fusion platform.

You’ll play a key role in designing and delivering high-performance applications end-to-end — from backend services and APIs to slick, user-friendly frontends. If you enjoy working with complex data, modern tech, and cross-functional teams, this is the kind of role where you can really make your mark.

What you’ll be doing

• Designing and building scalable, high-performance applications across the full stack
• Developing backend services in Python and SQL, integrated with Azure and Snowflake
• Creating intuitive frontends using React and modern TypeScript
• Shaping architecture across multiple products with a focus on scalability and maintainability
• Building robust APIs for internal and external use
• Working closely with data scientists to bring models and pipelines into production
• Handling large, complex datasets and building systems that make them usable and insightful
• Owning features end-to-end — from idea to deployment and beyond
• Contributing to engineering best practices, CI/CD, and clean, testable code
• Using AI-assisted development tools to improve speed and quality (without blindly trusting them )

What we’re looking for

• Strong experience in full stack development (typically 5–10+ years)
• Solid backend skills in Python + SQL
• Experience with Azure and modern data platforms (e.g. Snowflake)
• Strong frontend skills with React + TypeScript
• Experience building APIs and working with distributed systems
• Good understanding of data engineering concepts (ETL/ELT, data modelling, performance)
• Familiarity with CI/CD, containers, and modern deployment practices
• Comfortable working in agile teams with real ownership
• Able to navigate complex, data-heavy problems without breaking a sweat

(Bonus points for .NET experience — but not essential.)

Why this role?

• Work on high-impact, data-rich products used across the industry
• Be part of a team with deep expertise in data science and analytics
• Get hands-on with modern data platforms and cloud tech
• Influence product and technical direction — not just ticket delivery
• Hybrid working with a Central London office (2 days/week)
• Great benefits: 25–30 days holiday, private medical, pension, season ticket loan + more