Software Engineer

Systemstechnologyresearch; Arlington (VA); Hybrid; USD 110,000 - 138,000; Full time

Job summary

Systemstechnologyresearch is seeking a Software Engineer to build software that addresses national security challenges. You will work on innovative projects in a hybrid environment, collaborating with experts in AI and decision-making.

The ideal candidate holds a BS/MS in Computer Science and has over 2 years of experience in software development using Java. A salary range of $110,000 to $138,000 is offered, along with opportunities for professional growth.

Qualifications

• 2+ years of experience (BS) or recent MS graduate with professional experience.
• Mindset of a trailblazer, comfortable with ambiguity.
• Experience building maintainable, well-documented APIs.

Responsibilities

• Design and implement flexible microservices within a robust DevSecOps ecosystem.
• Support a mature mission planning solution through transition.
• Collaborate to turn complex mathematical models into production-grade software.

Skills

Building maintainable APIs and software

Java

Spring Boot

Linux

Docker

Kubernetes

Kafka/NATS

GitLab

Python

Education

BS/MS in Computer Science or related field

Tools

Java 17+

Spring Boot

Docker

Kubernetes

Job description

Software Engineer

The Mission

Do you want to build software that solves the world's most complex national security problems? At STR, we don’t just write code; we bridge the gap between cutting‑edge research and real‑world mission success. You will join a multidisciplinary powerhouse of software engineers, physicists, mathematicians, and data scientists dedicated to taking innovative ideas from a whiteboard concept to a mature, deployed implementation.

The Technical Frontier

As part of the Knowledge Exploitation & Decisions Systems Group, you will work at the intersection of AI and human decision‑making. Our portfolio is diverse and high‑impact, including Command & Control (C2) via intuitive human‑machine interfaces that help operators make the best possible decisions in high‑pressure environments; Trusted AI & Autonomy via simulation platforms to test AI autonomy and evaluate the reliability and responsibility of autonomous systems; and Advanced Reasoning via graph‑based reasoning and evolutionary algorithms for resilient workflow optimization, and enhancing language models to assess the feasibility of scientific claims.

What You’ll Do

• Build & Scale: Design and implement flexible microservices within a robust DevSecOps ecosystem.
• Drive Deployment: You will initially support a mature mission planning solution, guiding it through the critical transition from R&D into an active user community.
• Collaborate: Work alongside scientists and engineers to turn complex mathematical models into production‑grade software.
• Own Your Growth: Beyond your initial project, your trajectory will be driven by the intersection of your interests and our portfolio.

Who You Are

• Education: BS/MS in Computer Science or a related technical field.
• Experience: 2+ years (BS) or recent MS graduate with professional experience building maintainable, well‑documented APIs and software in Java.
• Mindset: You are a "trailblazer"—someone who is comfortable with ambiguity and loves learning new libraries and languages on the fly.

Our Tech Stack

• Primary: Java 17+, Spring Boot
• Infrastructure: Linux, Docker, Kubernetes, Kafka/NATS, GitLab
• Secondary: Python (for AI/Data integration)

Logistics

• Location: Hybrid at one of STR’s offices in Woburn, MA; Arlington, VA; Carlsbad, CA; or Aurora, CO.
• Travel: Periodic travel up to 20%
• Clearance: US Citizenship required with the ability to obtain a Top Secret clearance.

Pay Information

Full‑Time Salary Range: $110,000.00 to $138,000.00

STR is an equal‑opportunity employer. We are fully dedicated to hiring the most qualified candidate regardless of race, color, religion, sex (including gender identity, sexual orientation and pregnancy), marital status, national origin, age, veteran status, disability, genetic information or any other characteristic protected by federal, state or local laws.

If you need a reasonable accommodation for any portion of the employment process, email us at [e-mail].

Pursuant to applicable federal law and regulations, positions at STR require employees to obtain national security clearances and satisfy the requirements for compliance with export control and other applicable laws.