Python Developer (AWS, API)

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

* 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.

Desirable criteria

* 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

Key responsibilities

* 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.

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