• Job Title: Senior Back End Developer• Salary Range: £90,000 – £110,000 + bonus• Location: London | Hybrid (2–3 days office)Our client is investing heavily in a new digital capability as part of a wider transformation programme, creating a rare opportunity to join at the very start of a greenfield product build. This Senior Back End Developer role will shape a brand-new data platform designed to support complex decision-making for major global organisations.You’ll join a highly experienced, close-knit team with the autonomy to define architecture, tooling, and engineering standards from day one. The Senior Back End Developer will play a critical role in turning early product ideas into a scalable, production-ready platform, combining start-up agility with the backing of a well-established business.The Senior Back End Developer will… take ownership of backend engineering for a new API-first data intelligence platform.Role HighlightsDesign and build scalable backend systems from a true greenfield starting pointDefine architecture, balancing rapid delivery with long-term scalabilityDevelop API-first services for data-heavy, enterprise-grade applicationsEmbed observability, metrics, and performance tracking from day oneCollaborate within a small, high-autonomy team shaping a new productYou Will NeedExtensive backend development experience within data-driven B2B environmentsStrong programming skills in Python or Go, with API design expertiseExperience building and scaling cloud-based infrastructure (Docker, Kubernetes, CI/CD)Proven use of AI-assisted development tools in real-world workflowsAbility to break down complex problems and deliver iterative solutionsWhy You’ll Love It£90,000 – £110,000 base salary plus annual bonusTrue greenfield project with high ownership and influenceClear progression as the team and product scalePrivate healthcare, strong pension, and development budgetIf you’re interested in this exciting Senior Backend Engineering role and have the right experience, please apply ASAP with a copy of your CV.
Updated: 22 March 2026
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