Software Architect

Modern Technology Solutions, Inc. (MTSI) is seeking a Software Architect to join our team in El Segundo, CA or Colorado Springs, CO.The MILSATCOM Systems Engineering, Integration, and Test (MSEIT) effort provides leading edge Systems Engineering & Integration (SE&I) for the US Space Force’s Space Systems Center (SSC). We support the Space Force’s acquisition of state-of-the-art satellite communications systems, providing global secure, survivable, and protected communications for our nation’s warfighters. We seek technical individuals who will thrive in a highly collaborative work environment of small teams, using the most modern tools and methodologies to tackle the challenges of integrating complex space and ground communications systems.Key ResponsibilitiesDesign and implement high‑quality software while maintaining architectural integrity across the stack.Lead architectural decision‑making, setting technical direction and balancing key trade‑offs.Own solutions end‑to‑end, from design through deployment and long‑term stewardship.Work autonomously, showing initiative and strong problem‑solving capability.Collaborate closely within a small, high‑impact team and contribute to shared delivery.Operate effectively in a fast‑moving environment with evolving requirements.Shape foundational architecture and establish best practices for long‑term success.Adopt and explore emerging AI‑assisted development tools to enhance delivery and qualityWork EnvironmentLocation: On-siteTravel Requirements: MinimalWorking Hours: StandardQualificationsRequired:Ability to obtain and maintain a Secret clearanceBachelor’s degree in engineering, computer science, mathematics, or equivalent field5 years of applicable experienceDemonstrated experience designing and delivering large‑scale, production‑ready systemsStrong cloud and Kubernetes expertise, including ecosystem tooling and Infrastructure‑as‑Code (Terraform, Ansible, or similar)Familiarity with GitOps, secure system design, supply‑chain security, and air‑gapped environmentsStrong understanding of DevSecOps principlesExperience with messaging or event‑streaming platforms (e.g., Kafka).Broad technical capability, able to reason across the stack and make sound architectural trade‑offsExperience with Go, TypeScript, or Java; proficiency with Git workflows, code review, and CI/CDExperience with AI‑assisted and agentic development tools, including safe integration practicesEffective technical communicator able to document and justify architectural decisionsProficient in Microsoft Office products (Word, Excel, Powerpoint)Preferred Skills And ExperienceActive Secret (or higher) clearanceExperience supporting government or Department of War (DoW) systemsExperience with MILSATCOM, such as AEHF, EPS, WGS, Protected Tactical SATCOM and COMSATCOMExperience with maintaining software requirements alongside systems engineers, and establishing requirements traceability to capabilitiesExperience integrating DevSecOps principles into software architectureCertifications such as INCOSE CSEP/ESEPCompensation: The pay range for this position in California is $127,000/year to $159,000/year and for Colorado is $116,000/year to $145,000/year; however, base pay offered may vary depending on established government contract ranges, job-related knowledge, skills, and experience, and other factors. MTSI also offers a full range of medical, financial, and other benefits, dependent on the position offered. Base pay information is based on market location. Applicants should apply via MTSI's internal or external careers site.#MTSI#MTSIJOBS