Python Developer (AWS, API)

Project overview

Our key Technology client is looking for a Python Developer to join on a contract basis to work within the Data Services & Analytics teams.

Essential skills

Desirable criteria

Key responsibilities

Hays Specialist Recruitment Limited acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept the T&C's, Privacy Policy and Disclaimers which can be found at hays.co.uk

• Strong Python development experience, including use of boto3 and AWS SDKs to build and maintain production services.
• Practical experience with AWS services including Lambda, EC2, S3, SQS, DynamoDB and CloudWatch.
• Experience developing and supporting event-driven and serverless architectures.
• Ability to investigate and resolve production issues spanning multiple services, integrations and workflow stages.
• Experience with AWS Batch and API Gateway to deliver secure, scalable data sharing capabilities
• Experience analysing existing code and delivering maintainable, low-risk changes.
• Experience creating and maintaining automated tests using pytest, moto or related tooling.
• Ability to produce clear technical documentation and operational support procedures.
• Experience with large scale ETL pipeline platforms, including its infrastructure, integrations, data flows and operational processes.
• Familiarity with the application, infrastructure and operational aspects of a live service.
• Experience contributing to technical design and agreeing pragmatic implementation approaches.
• Experience improving platform performance, maintainability and operational stability.
• Experience with Github CoPilot and agentic workflows
• Deliver new CICO features and enhancements from analysis through implementation and support.
• Investigate, diagnose and resolve production issues across the platform and its integrations.
• Analyse existing code and implement maintainable, proportionate and low-risk changes.
• Contribute to technical designs and implementation approaches that align with platform needs.
• Expand and maintain automated test coverage using appropriate testing and mocking tools.
• Create and maintain technical documentation, operational procedures and support guidance.
• Support platform maintenance, performance improvement and operational stability.

Project details

• Start: flexible
• Location: London, South East England, GB, GB