Senior Data & Platform Engineer

Senior Data & Platform Engineer (AWS)

Day Rate Contract

Starting Immediately

We're looking for a senior, hands-on engineer with experience building, deploying and supporting data-intensive backend systems.

Working alongside an existing engineering team, you'll own application code, data pipelines and AWS deployment, introducing improvements and managing changes through to production.

The Role:

• Develop backend services and reliable pipelines that integrate external data sources.
• Improve asynchronous processing, handling duplicates, retries, interrupted jobs and recovery.
• Deploy and operate applications on AWS, with effective monitoring and automated release pipelines.
• Manage database changes and system migrations, comparing outputs and planning controlled cutovers and rollback.
• Take ownership from initial investigation through implementation, production support and handover.

Requirement's:

• Strong production backend engineering experience. The application uses Python, but engineers from other language backgrounds will be considered if they can become productive quickly.
• Hands-on AWS experience across services such as Lambda, ECS/Fargate, SQS, S3 and RDS, alongside IAM, networking, secrets and infrastructure as code.
• Experience with data ingestion and queue-based systems, including data quality, idempotency, concurrency and partial failures.
• Strong SQL and relational database experience, ideally PostgreSQL, covering transactions, schema changes and query performance.
• Experience with CI/CD, containers, structured logging, metrics, tracing and actionable alerts.
• Practical experience using coding agents for implementation, testing and review, with independent verification of their output.
• Confidence working autonomously, identifying dependencies and communicating decisions clearly.

You don't need every named technology, but you should have concrete examples of comparable systems you have personally delivered and operated.