Senior AWS Python Developer
First seen by Alion on Oct 4, 2026.
Are you a passionate software engineer eager to lead the development of cutting-edge cloud platforms? We are seeking exceptional Senior, Principal, and Sr. Principal Software Engineers to craft the next generation of AI-native cloud solutions tailored for the financial industry. In this pivotal role, you will be a hands-on technical leader, solving complex distributed systems challenges, designing scalable cloud architectures, and writing high-performance, production-grade code infused with AI capabilities. This is an individual contributor role perfect for engineers who love building innovative solutions, with the opportunity to mentor and influence a team of talented engineers.
What you'll do:
Design and develop highly scalable, cloud-native platforms on AWS.
Create distributed systems, APIs, event-driven services, and core platform components.
Drive engineering excellence through clean architecture, rigorous testing, code reviews, CI/CD pipelines, observability, and operational best practices.
Own systems end-to-end—from initial design to production deployment and ongoing operations.
Mentor fellow engineers, promoting technical excellence and best practices.
Collaborate closely with product teams and AI specialists to deliver enterprise-grade software solutions.
Required Skills:
8+ years (Senior), 12+ years (Principal), or 15+ years (Sr. Principal) of software engineering experience.
Hands-on coding expertise with Python.
Deep experience designing, building, and operating cloud-native applications on AWS, Azure, OCI, or GCP.
Strong understanding of distributed systems, scalability, resilience, performance optimization, and security.
Proven track record of delivering high-reliability production systems using modern engineering practices, including CI/CD, infrastructure as code, automated testing, and monitoring.
Excellent system design skills and effective technical communication.
Nice to Have Skills:
Experience with Kubernetes, microservices architecture, event streaming, or platform engineering.
Exposure to AI/LLM platforms, agentic systems, or developer platforms.
Background in fintech, enterprise SaaS, or highly regulated environments.
Language Required for the role:
Fluent English (written and spoken).
Eligibility for the role:
Only candidates with an existing legal right to work in the European Union will be considered for this role.
#MAKEYourCareerBETTER
Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.
Tech stack
- Python
- AI/ML
- Amazon AWS