> Markdown version of [/jobs/ext/2164038-software-engineer-ii-fullstack](https://www.wearedevelopers.com/jobs/ext/2164038-software-engineer-ii-fullstack). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Software Engineer II - Fullstack - **Company:** Cesiumastro Inc - **Location:** Westminster, CO, United States - **Experience:** Expert - **Salary:** $113,000.0 - $136,000.0 - **Contract:** Permanent contract - **Skills:** Automation of Tests, C Sharp (Programming Language), C++ (Programming Language), Cloud Engineering, Computer Engineering, Distributed Computing Environment, Distributed Systems, Embedded Software, Object-Oriented Software Development, Performance Tuning, Svelte, Blockchain, Software Construction, Software Engineering, System Programming, Systems Integration, Rust (Programming Language), High Performance Computing, Real Time Systems, Modern Ui, ReactJS, Blazor, Software Security, Vue.js, Containerization, Restful APIs, Devsecops, Docker, Microservices - **Published:** August 21, 2026 - **Apply:** https://www.careerjet.com/jobad/us612b6c98c84edf6923bb5c5008307792 ## About the Role At CesiumAstro, we are developers and pioneers of out-of-the-box communication systems for satellites, UAVs, launch vehicles, and other space and airborne platforms. We take pride in our dynamic and cross-functional work environment, which allows us to learn, develop, and engage across our organization. If you are looking for hands-on, interactive, and autonomous work, CesiumAstro is the place for you. We are actively seeking passionate, collaborative, energetic, and forward-thinking individuals to join our team. We are seeking a Software Engineer II 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. \n, * Bachelor's degree in Software Engineering, Computer Engineering, or relevant field. * 2+ years of relevant software engineering experience. * Foundation in object-oriented or systems programming (C++, Rust, C#, etc.) * Familiarity with containerization (Docker), REST APIs, or microservices * Exposure to embedded development or cloud development is a plus * Strong desire to learn space-domain systems, DLT, DevSecOps, and distributed architectures * 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.). ## Description * 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. ## Related Videos - [Blazor Unleashed: The Future of .NET Web Development](https://www.wearedevelopers.com/videos/1564-blazor-unleashed-the-future-of-net-web-development) - [Lessons learned from building a thriving Vue.js SaaS application](https://www.wearedevelopers.com/videos/1666-lessons-learned-from-building-a-thriving-vue-js-saas-application) - [Docker Compose: Rediscovered](https://www.wearedevelopers.com/videos/1978-docker-compose-rediscovered) - [Beyond Warp Speed: Crafting the Future of Web Development with Astro 4.10](https://www.wearedevelopers.com/videos/985-beyond-warp-speed-crafting-the-future-of-web-development-with-astro-4-10) - [Blazor – the new SPA Framework for everyone who hates JavaScript](https://www.wearedevelopers.com/videos/699-blazor-the-new-spa-framework-for-everyone-who-hates-javascript) - [Common Mistakes in Vue.js and How to Avoid Them](https://www.wearedevelopers.com/videos/958-common-mistakes-in-vue-js-and-how-to-avoid-them) ## Related Articles - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [Dev Digest 132 - Binging WADFlix?](https://www.wearedevelopers.com/magazine/473-dev-digest-132-binging-wadflix) - [Dev Digest 134 - Where pixels sing?](https://www.wearedevelopers.com/magazine/477-dev-digest-134-where-pixels-sing) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs)