Software Development Engineer II
Confirmed on the employer's own hiring board on Oct 2, 2026. First seen by Alion on Sep 7, 2026.
About the role
Software Development Engineer II (SDE II) What You Will Do Design, build, and operate production-grade services, APIs, and integrations end-to-end. Own delivery of well-defined components, from design through testing, deployment, and monitoring. Build backend systems in Python (FastAPI or similar) and contribute to React-based interfaces and streaming APIs. Deploy and manage workloads on AWS services such as ECS, EKS, Lambda, API Gateway, and CloudWatch. Implement CI/CD pipelines, automated testing, infrastructure automation, and observability tooling. Define and execute testing strategies including unit, integration, and regression testing. Contribute to low-level designs, code reviews, and technical documentation. Debug and resolve production issues, improving reliability and performance. Mentor junior engineers through reviews and pair programming. Use AI tools to improve engineering productivity, testing, and documentation.
What you'll bring
What We Are Looking For Experience building production-grade software systems. Strong engineering capability in at least one modern language (Python strongly preferred). Experience designing and operating backend services, APIs, and databases. Hands-on experience deploying applications on AWS (ECS/EKS, Lambda, API Gateway, IAM, CloudWatch). Solid understanding of CI/CD, automated testing, observability, and DevSecOps practices. Familiarity with React, Node.js, or modern web application patterns is an advantage. Strong debugging, problem-solving, and ownership capability.