Senior Python Developer – Data Integrations & APIs

Senior Python Developer – Data Integrations & APIs | Public Sector | Up to £470/day (Inside IR35)We're hiring a Senior Python Developer to join a new integrations squad on a major UK public sector programme, building robust data flows and APIs that connect operational systems, analytics platforms, and business intelligence services.You'll act as the primary technical interface between downstream digital teams and the core data platform team, working closely with Technical Architects, Data Engineers and Digital product teams to accelerate delivery of strategic data capabilities.Location: Leeds, Sheffield or London (hybrid — travel flexibility dependent on team)Clearance: Active SC clearance required, or strong confidence of obtaining itEssential: Prior experience working within UK Government or wider public sector is requiredWhat you'll be doing:Designing and building scalable automated data flows and APIs connecting operational systems, analytics and BI platformsDesigning and writing ETL (extract, transform, load) scripts and code for optimal performanceRecognising opportunities to reuse and re‑engineer data flows for scaling and repeatable useWorking with data users to translate their needs into technical requirementsUsing a range of AWS services to deploy solutions in a reproducible, sustainable wayUsing Infrastructure as Code to deploy AWS cloud infrastructureDeveloping and optimising code, tools and services that enable effective data useDesigning pipelines and services with observability, resilience and operational support in mindContributing to daily support rota management of existing services and pipelinesWhat we're looking for:Strong technical skills in Python and SQL, ideally within a team already using bothStrong experience across the software development lifecycle — testing (e.g. pytest), version control (e.g. Git), CI/CD (e.g. GitHub Actions)Confident working with a range of data sources — data wrangling, analysis and manipulationStrong communication skills — translating user needs into technical requirements for technical and non‑technical stakeholdersExperience working within agile, multidisciplinary delivery teamsPrevious UK Government or public sector experience essential

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