
Senior Staff Software Engineer - Fullstack
Real job — pulled straight from CesiumAstro’s careers page · Verified August 29, 2026 · No reposts.
Job description
CesiumAstro is hiring a Senior Staff Software Engineer - Fullstack — a full-time, based in Westminster, CO role. Apply directly on CesiumAstro's careers page below.
Senior Staff Software Engineer - Fullstack
Team: Software
Location: Westminster, CO
Commitment: Full-time
Workplace Type: onsite
We are seeking a Staff Software Engineer to support several new, space-centric programs across the DoW and IC. We are looking for engineers who thrive in a fast-paced startup environment and enjoy solving hard problems. Our culture is simple: work hard, solve real problems, build things that matter.
JOB DUTIES AND RESPONSIBILITIES
- Build modern full-stack applications in support of space mission systems.
- Integrate and modernize legacy space-related ground and flight software.
- Develop distributed applications leveraging microservices, cloud-native architectures, and Distributed Ledger Technology (DLT)/consensus frameworks.
- Support on-orbit and ground system integration & test, including emulation, simulation, and interface validation.
- Implement DevSecOps pipelines, automated testing, and secure software practices.
- Develop modern UI/UX interfaces for mission operators and analysts.
- Work closely with space system engineers, mission integrators, and operations teams.
- Contribute to a mission-focused engineering culture where your ideas truly shape the product.
JOB REQUIREMENTS AND MINIMUM QUALIFICATIONS
- Bachelor’s degree in Software Engineering, Computer Engineering, or relevant field.
- 12+ years of relevant software engineering experience.
- Demonstrated technical leadership across software modernization or distributed systems
- Experience architecting microservices, APIs, message buses, and high-availability systems
- Expertise integrating and testing software for space-based or ground mission systems
- Ability to mentor junior engineers and guide design decisions
- Experience with DoD/IC programs, ATO processes, or DevSecOps on classified systems
- Experience developing in C++, C#, Rust, Python, or Go.
- Experience with SQL/NoSQL database design and integration.
- Experience with cloud services (AWS, Azure, or GovCloud variants).
- Experience with GitHub, Jira, and Confluence.
- U.S. Citizenship is required for this position along with the ability to obtain a Secret security clearance.
- Ability to travel up to 10%.
PREFERRED EXPERIENCE
- Existing security clearance (TS/SCI preferred).
- Experience supporting DoD/IC programs.
- Experience building software for spacecraft, OPS software, or flight/ground segment integration.
- Experience with high-performance computing, distributed processing, or real-time systems.
- Experience with performance tuning and resource-constrained environments.
- Experience with DevSecOps, IaC, and automated test frameworks.
- Familiarity with DLT, blockchain, or consensus protocols.
- Experience with modern UI/UX frameworks (React, Vue, Svelte, Blazor, etc.).
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Frequently asked questions
What skills are required for Senior Staff Software Engineer - Fullstack at CesiumAstro?
The required skills for Senior Staff Software Engineer - Fullstack at CesiumAstro include: C++, C#, Rust, Python, Go, SQL, NoSQL, AWS, Azure, GitHub, JIRA, Confluence, Microservices, API, DevSecOps, React, Vue.js, Svelte.
What is the seniority level for Senior Staff Software Engineer - Fullstack at CesiumAstro?
Senior Staff Software Engineer - Fullstack at CesiumAstro is a Senior / Staff level position.
How do I apply for Senior Staff Software Engineer - Fullstack at CesiumAstro?
You can view the full description and apply for Senior Staff Software Engineer - Fullstack at CesiumAstro on EchoJobs: https://echojobs.io/job/cesiumastro-senior-staff-software-engineer-fullstack-atj2c.