App Developer | Outside IR35 at Sanderson, South East London, £Contract Rate

Position: App Developer
Location: Vauxhall / Stratford
Day Rate: £600 p.d Outside IR35
Must hold active DV clearance

A central government department is looking for an experienced App Developer to join a high-security programme. This role requires working on-site 5 days per week in Vauxhall, moving later to Stratford later on in the project. Due to the nature of the work, candidates hold UKSV DV clearance.

Key Skills & Experience

• Strong expertise in Python, Docker, Kubernetes, and Data Governance
• Experience working in air-gapped environments, including managing dependencies and build pipelines without internet access
• Proven background building APIs for data enrichment services
• Orchestration & data pipeline experience with Prefect or Airflow, and K8s or Swarm
• Configuration and automation of business workflow tooling (e.g., Jira)
• Hands-on experience with a range of databases and storage technologies: Elastic, Mongo, Cassandra, Redis, S3

Desirable Skills

• PyTorch, AI/ML, NLP, LLMs
• Experience with the Atlassian Suite, GitHub, Linux CLI
• Broader data handling and advanced model-driven development exposure

To learn more, please do reach out to Tom Royston via email on