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Software Engineer

Sustainment · Austin, Texas, United States

Software Engineer is open at Sustainment in Austin, Texas, United States. The posting gives no salary; similar roles in the United States advertise a median of $192K. Posted on Nov 13, 2026, and still on Sustainment’s careers page when we last checked, on Nov 14, 2026.

About the role

Company Overview: Sustainment is an AI-native software platform that helps US-based manufacturers easily find and work with the critical suppliers they need to build and manage their supply chains. Our vision is to reimagine American manufacturing as a hyperconnected, secure, and resilient ecosystem of local and regional suppliers who can more easily connect, interact, and do business with the industry and government customers that rely on them. We are a dual-use technology platform that supports both DoD and commercial customers in pursuit of our vision.

ROLE OVERVIEW

We are hiring a Software Engineer to ship features across our full stack. You will build alongside our Staff Software Engineer’s and other senior engineers, take on real production work from week one, and grow into larger scope as you prove it. We are scaling, and this role is a path to technical leadership.

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 review. Learn from senior engineers and share what you learn.
  • Debug production issues with guidance, find the root cause, and fix it.
  • Write and tune queries against PostgreSQL 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 what you build so the next engineer can pick it up.

QUALIFICATIONS

  • 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. PostgreSQL and EF Core preferred.
  • Working proficiency in Angular and TypeScript.
  • Experience with Git, automated testing, and CI/CD.
  • Familiarity with AWS, containers, or distributed systems is a plus. ABP Framework experience is a plus.
  • Clear written and verbal communication.
  • Bachelor's degree in computer science or a related field, or equivalent experience.
  • Ability to obtain and maintain a US government security clearance. Certain programs may require US citizenship.
  • Early-stage startup or SaaS experience is a plus.

OUR STACK

C#, ASP.NET Core, ABP Framework, EF Core, Angular, PostgreSQL, Kafka (Amazon MSK), Docker, Kubernetes, Terraform, AWS (including GovCloud), GitLab, Datadog

Sustainment offers a competitive benefits package for full time employees including medical, dental, vision, paid time off, company holidays, and 401K matching.

Sustainment is proud to be an equal opportunity employer. We provide employment opportunities without regard to age, race, color, ancestry, national origin, religion, disability, sex, gender identity or expression, sexual orientation, veteran status, or any other protected class.

Applicants must be authorized to work for ANY employer in the U.S. We are unable to sponsor or take over sponsorship of an employment Visa at this time.

Sustainment participates in E-Verify.

The employer’s own description, as published on Sustainment’s careers page.

Hiring at Sustainment

Sustainment has 6 open roles right now. Most are in Engineering, Sales & Business Development and Finance & Trading. See all its roles

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