Python Backend Developer - AWS

Slough Full-Time 43200 - 72000 £ / year (est.) No home office possible

Job Summary:

We are seeking a highly skilled Python Backend Developer with strong experience in building Microservices-based architectures and cloud-native server less solutions on AWS. The ideal candidate will be responsible for designing, developing, and maintaining scalable backend systems, ensuring high performance and responsiveness to requests from front-end applications and third-party systems.

Key Responsibilities:

Design and develop robust backend services and RESTful APIs using Python (FastAPI, Flask, or Django)
Build and deploy microservices that are scalable, loosely coupled, and independently deployable
Develop and manage serverless applications using AWS Lambda, API Gateway, DynamoDB, S3, SNS, SQS, and Step Functions
Implement event-driven architectures and data processing pipelines
Collaborate with front-end developers, DevOps, and product teams to deliver high-quality software
Ensure code quality through unit testing, integration testing, and code reviews
Automate deployments using CI/CD pipelines and Infrastructure as Code (IaC) tools like CloudFormation or Terraform
Monitor, debug, and optimize backend systems for performance and scalability

Required Skills & Experience:

7+ years of backend development experience using Python
Strong experience in designing and implementing microservices
Hands-on experience with AWS Serverless services: Lambda, API Gateway, S3, DynamoDB, SQS, SNS, etc.
Proficient in RESTful API design, JSON, and OpenAPI/Swagger specifications
Experience with asynchronous programming in Python (e.g., asyncio, aiohttp, FastAPI)
Knowledge of CI/CD tools (e.g., GitHub Actions, Jenkins, CodePipeline)
Familiarity with Docker and containerized deployments
Strong understanding of software design patterns, clean code practices, and Agile methodologies