Software Engineer

Sustainment•Austin, TX

About The Position

Sustainment is hiring a Software Engineer to build and ship full-stack features across its AI-native software platform for U.S.-based manufacturers and their suppliers. The role involves production work from the first week, working alongside staff and senior engineers, and expanding in scope as the engineer grows. The position is described as a path to technical leadership. The engineer will build with C#, ASP.NET Core, ABP Framework, EF Core, Angular, and PostgreSQL, and contribute to a platform that serves both Department of Defense and commercial customers. The work includes feature development, maintenance and upgrades, production debugging, security-conscious engineering for AWS GovCloud and government customer environments, and collaboration with Product and engineering teammates. Sustainment offers full-time employees medical, dental, and vision coverage, paid time off, company holidays, and 401(k) matching. Applicants must be authorized to work for any U.S. employer; the company is unable to sponsor or take over sponsorship of an employment visa. The role requires the ability to obtain and maintain a U.S. government security clearance, and certain programs may require U.S. citizenship.

Requirements

2–3 years of professional software engineering experience.
2+ years building in C# and ASP.NET Core, or a comparable modern backend framework.
Working experience with a relational database.
Working proficiency in Angular and TypeScript.
Experience with Git, automated testing, and CI/CD.
Clear written and verbal communication.
Bachelor's degree in computer science or a related field, or equivalent experience.
Ability to obtain and maintain a U.S. government security clearance; certain programs may require U.S. citizenship.
Authorization to work for any employer in the U.S.

Nice To Haves

PostgreSQL and EF Core experience.
Familiarity with AWS, containers, or distributed systems.
ABP Framework experience.
Early-stage startup or SaaS experience.

Responsibilities

Build and ship full-stack features in C#, ASP.NET Core, and Angular, from design through production.
Write clean, tested code that follows the team's .NET and ABP conventions.
Give and receive code reviews, learn from senior engineers, and share learnings.
Debug production issues with guidance, identify root causes, and implement fixes.
Write and tune PostgreSQL queries using EF Core.
Contribute to .NET and ABP upgrades and other maintenance while feature work continues.
Build with security in mind, including for AWS GovCloud and government customer environments.
Work with Product and senior engineers to turn customer needs into clear tasks.
Document work so other engineers can take it up.