Job Title: Python App Developer (AWS) Rate: £600-800 per day (Outside IR35) Experience: 5-8 years Location: On-site in Central London (Soho) — min. 3 days/week Strong expertise on knowledge on Python, AWS Neptune and AWS development certification. My client, an innovative accelerator company specializing in digital transformation, working with a diverse range of clients is looking for a strong Python Developer with deep AWS experience to join their well-established ProServe team. We looking for a Python Developer with deep AWS experience and a passion for building smart, scalable backend systems? We're looking for 2 experienced engineers to join an exciting AWS ProServe engagement focused on improving supply chain analytics and event tracking for a major enterprise client. What You'll Be Working On • Developing new event generation features for Unit Tracking & Pre-alert systems • Building Smart Flows for Analytics and Visibility • Creating backend APIs and integrations using AWS-native services • Collaborating with AWS ProServe consultants and client stakeholders Must-Have Skills • Strong Python engineering (FastAPI, Flask, SQLAlchemy, etc.) • Deep experience with AWS Lambda, Neptune, DynamoDB, and other core services • Confident working with event-driven architecture (EventBridge/SNS/SQS) • AWS App Dev Certified (or equivalent cloud certification) • Strong grasp of backend integration and clean system design • Minimum 5 years commercial experience Location • On-site in Central London (Soho) — min. 3 days/week • Must be already based in London or able to commute easily Bonus Points for • Experience with AWS Supply Chain • Working knowledge of AWS Glue, Redshift, or Athena • Familiarity with AWS CDK or Infrastructure as Code tooling • Supply chain experience and AWS Neptune is good to have. Team Vibe You'll be joining a well-established ProServe team already on-site — looking for someone who’s collaborative, low-ego, and ready to hit the ground running.