{"id":804083,"url":"https://alion.io/job/sphinxdefense-backend-engineer","title":"Backend Engineer","company":{"id":686152,"name":"Sphinx Defense","domain":"sphinxdefense.com","url":"https://alion.io/company/sphinxdefense","size_band":"11-50","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"A","score":95,"open_postings":3,"ghost_share":0,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":70,"computed_at":"2026-10-29T05:49:05Z"}},"role":"Backend","role_family":"Backend","seniority":"middle","employment_type":null,"work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Colorado Springs, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":138000,"max":167000,"currency":"USD","period":"year","gross":null,"usd_annual":167000},"salary_estimate":null,"experience_years_min":3,"visa_sponsorship":false,"relocation_package":false,"has_equity":true,"technologies":[{"name":"AWS","optional":false},{"name":"Azure","optional":false},{"name":"Docker","optional":false},{"name":"FastAPI","optional":false},{"name":"GCP","optional":false},{"name":"Kubernetes","optional":false},{"name":"PostgreSQL","optional":false},{"name":"Python","optional":false},{"name":"Terraform","optional":false}],"status":"live","first_seen_at":"2026-07-06T20:12:23Z","employer_posted_date":"2026-08-05","last_verified_at":"2026-10-29T05:30:29Z","board_verified":true,"closed_at":null,"days_open":114,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":114},"description":"ABOUT SPHINX\nSphinx builds software to solve complex national security problems in Space. Founded by engineers and technologists with deep experience across commercial and defense technology, we were frustrated by the outdated and insecure technology America's service members are forced to rely on. We're here to do better. \nWe’re focused on building modern, scalable products with an emphasis on using open source technologies. Expect talented, motivated, and interesting colleagues who emphasize collaboration, transparency, and individual responsibility.\nABOUT THE ROLE\nSphinx is hiring a Backend Engineer to join our Space Communications team building a ground communications and data-transport platform for US government satellites. As a Backend Engineer you will lead the development of core platform services, designing and building technology to support the operations of a wide variety of US Government satellites. You'll work as both an individual contributor and a lead for more junior engineers.\nWe’re looking for a track record of the following:\nExperience working on multi-tenant services on public cloud platforms like AWS, Azure, or GCP\nDeveloping and consuming APIs and services as part of platform ecosystem\nDeveloping with an emphasis on automation and security\nWillingness to own a technical problem end-to-end\nA habit of self-directed learning of new technologies\nThe ability to work well with a team\nThe ability to communicate clearly\nYou might be a good fit if:\nYou have 3-5+ years’ of progressively responsible software engineering experience\nYou have extensive experience with Python, FastAPI, postgres, AWS, Docker, Kubernetes, Terraform\nYou have experience architecting and building APIs and backend services\nYou can demonstrate in-depth knowledge of at least one commercial cloud platform and its associated services \nAre comfortable working with some ambiguity and able to self-direct your work\nYou’ve made enough mistakes and booked enough wins to know what not to build and know what good looks like\nNice to have:\nPrior experience working in space, satellite communications, or building ground systems. \nLOCATION\nThis hybrid role requires a regular presence in Colorado Springs, CO.\nCOMPENSATION\nThis role is between $138,000 - $167,000 base salary.\nQuarterly bonus structure\nEquity ownership in the company\n100% Premium coverage for medical, dental, and vision for you and dependents\nHealth Savings Accounts\nLife Insurance\n401k employer contribution plan\nFlexible paid time off policy \nFlexible work/remote work policy\nBENEFITS\nCompensation includes competitive salary, meaningful equity ownership, profit sharing, employer 401(k) contribution, and 100% employer covered medical, dental, and vision insurance for you and your dependents.\nAt Sphinx Defense, we are devoted to building a team that represents a variety of backgrounds, perspectives, and skills. Sphinx Defense is committed to providing equal employment opportunities to all employees and applicants for employment without regard to race, color, religion, sex, sexual orientation, and gender identity.\nCLEARANCE ELIGIBILITY - This position requires eligibility to obtain and maintain a U.S. security clearance. For more information about U.S. Security Clearances: click here. \nTo conform to U.S. Government export regulations, applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (aka green card holder), (iii) Refugee under 8 U.S.C. § 1157, or (iv) Asylee under 8 U.S.C. § 1158, or be eligible to obtain the required authorizations from the U.S. Department of State. 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