Senior Software Engineer
$160kTrillium Staffing Solutions
Trillium Professional has a direct hire opportunity in Colorado Springs, CO for aSenior Software Engineer IV. In this role, you will take ownership of new features from concept to implementation, collaborate with cross-functional teams to gain alignment, and work across a wide range of areas—from system-level software to higher-level application components. You will contribute to areas such asarchitecting complex C++ subsystems, porting 3rd party software,integration of third?party software, system scripting, and maintenance of supporting tools and automated workflows. We are looking for someone who thrives in a dynamic engineering environment, is comfortable working independently, and is eager to apply their skills broadly—from low-level debugging to application?level enhancements. This is a strong opportunity for an engineer who values variety in their work and wants to have a meaningful impact across the full product lifecycle. Key Responsibilities: -Follow agile software practices enabling quick prototyping and multiple releases to meet market windows. -Results-oriented, with a mindset of a sense of urgency and ability to drive daily progress, even on complex design issues. -Invest in development support activities including code reviews, collaborative design sessions, project/sprint planning, and feature demos. -Strong desireto write testable software, and a mindset of unit testing the code that is produced. -Create andmaintaincomplex C++ subsystems -Willing to own large initiatives and independently formulate, architect, and deliver new product features. Obtain buy-in from leadership and team members -Drive thetechnical roadmap through software development for new and existing products -Participate in system-level integration, validation, and testing across multipleproducts. -Create andmaintainsoftware specifications, test plans, and technical documentation Annual salary is $160k/year. Apply now! RecommendedQualifications,or equivalent experience: -Bachelor’s orMaster’s degree in Computer Engineering, Computer Science, Electrical Engineering, or related field. -5+ years of hands-onC++development experience. Knowledge and Skills: -Proficient in C++ and JAVA programminglanguages. -Experience with Linux and Android software development. -Solid understanding of computer science principles. -Python scripting for tooling or automation. AdditionalPreferredSkills: -Solid general network knowledge, including TCP/IP, SNMP, DNS, DHCP, stacks and/or other open-source network toolkits. -Experience with chroot environments and complex software integrations. -STM32 development experience. -Linuxdrivers, kernel modules, system integration -Write Android JNI-Level C++ modules and associated Java modules to interface with JNI components Language and Interpersonal Skills -Strong communicationskills and ability to interact effectively with hardware, software, and test engineers. -Ability to document designs clearly and present technical information to peers and managers. -Comfortable working in a fast-paced, multi-product environment where resourcefulness and problem ownership are key. Trillium has been recruiting and placing professionals for over 30 years. From Fortune 100 companies to small businesses, our philosophy remains the same: to achieve excellence by providing quality employees and an uncompromising level of service. We believe in honesty, integrity, and a simple philosophy of providing value to our customers and our employees. We strive to be unsurpassed in the recruitment and placement of quality and skilled professionals. Trillium is an Equal Opportunity Employer. #J-18808-Ljbffr
$165k - $218k
...Slope is seeking a Senior Software Engineer specializing in Space Ground Software in Colorado Springs, CO. You will own the architecture and deployment of software solutions that support mission management for space operations. The ideal candidate has a strong programming...Senior- Lockheed Martin is searching for a skilled professional in Colorado Springs, focused on operational planning and space domain awareness. Successful candidates should have experience in application containerization, Agile development, and CI/CD in a cloud environment. The...SeniorFull time
$112.2k - $196.4k
...A leading cybersecurity firm in Colorado Springs is looking for a Senior Software Engineer to join their team. This hybrid position calls for deep expertise in Java and Spring Boot, and the ability to design scalable microservices. The role supports crucial national security...Senior- ...A leading advanced technologies company is seeking a Senior Forward Deployed Software Engineer to own the deployment success of complex software systems. Ideal candidates have 5+ years in software development with strong expertise in C#/.NET Core and Java. Responsibilities...SeniorFull time
$120k - $185k
...Description GXM is seeking a Senior Software Engineer to join our team to support advanced defense and space-related mission programs focused on Command and Control (C2), mission systems integration, cloud modernization, and enterprise capability delivery. The selected...Senior- ...NextGen Federal Systems, LLC is seeking a Software Engineer with experience in Systems Tool Kit (STK) to support the development and integration of mission analysis and modeling applications. These applications enable multi-domain analysis—including air, space, ground,...SeniorWork experience placement
- ...Sr Software Engineer Sr - TS//SCI with CI Poly to start Work Location: Colorado Springs, CO Mid-career level HPC Linux Software Engineer that will work in a High Performance Computing (HPC) Research and Development (R&D) customer contract. The candidate will be an active...SeniorContract work
$165k - $218k
...allied partners. We're developing fully integrated hardware and software systems, including Lattice for Space Missions and modular... ...in this contested warfighting domain. ABOUT THE JOB As a Senior Software Engineer on Space Ground Software, you will own the architecture and...SeniorFull timeWork experience placement$112k - $179k
...Senior Software Engineer Job Locations US-CO-Schriever AFB Requisition ID 2026-162610 Position Category Information Technology Clearance Top Secret/SCI w/Poly Responsibilities Ready to make an impact! Peraton is...SeniorContract workShift work$127k - $190k
...KBR’s National Security Solutions team provides high-end engineering and advanced technology solutions to our customers in the intelligence... ...– protecting our national security. KBR is seeking a Sr Software Engineer to work on-site at Schriever SFB, near Colorado Springs...SeniorLocal areaFlexible hoursDay shift$121.81k - $175.4k
...Are you a highly skilled Senior Software Engineer with deep technical expertise in one of our needed specialty areas? Are you looking for a challenging role where your technical expertise and Agile leadership can directly contribute to advancing cutting‑edge Live, Virtual...SeniorImmediate startFlexible hours$93.2k - $164.45k
...priorities. Our team leverages industry standard open‑source software solutions such as GitLab, Kubernetes, Docker, and Rancher. Our... ...automation‑first and "everything as code" mindset allows our software engineers to focus their time and efforts on what is most important —...SeniorFull timeTemporary workRelocationFlexible hoursShift work$127k - $190k
...Principal Software Engineer page is loaded## Principal Software Engineerlocations: Colorado Springs, Coloradotime type: Full timeposted on: Posted Todayjob requisition id: R2117203**Title:**Principal Software Engineer***Belong. Connect. Grow. with KBR!***KBR’s National...SeniorLocal areaFlexible hoursDay shift$130k - $175k
...Senior Forward Deployed Software Engineer (Secret) {S} Job Category : ENG Requisition Number : SENIO003158 Apply now Posted : December 18, 2025 Full-Time Locations Showing 1 location Description ARKA Group L.P. ("ARKA") is an advanced technologies company serving the U...SeniorFull timeTemporary workWork at officeVisa sponsorshipRelocation packageFlexible hours$100k - $155k
...Senior Software Engineer At Bluestaq, we build secure data platforms that matter for space missions, national defense, healthcare systems, and commercial innovation. Founded in 2018, we've become a leader in enterprise software and secure data management by staying...SeniorLive inLocal areaImmediate startRelocation$150k - $185k
...and consulting services to our clients. Equipped with elite engineering and dynamic innovation, we empower IT executives and their... ...individuality of the people around us. JOB SUMMARY: The Senior Principal Software Engineer supports the DARC program based in Colorado...SeniorLive inWork at officeLocal areaFlexible hours$156k - $236k
...TYPE: SCIRequired WORK SHIFT: 1st Shift TRAVEL: Yes, 10% of the Time About the role We are hiring full-time on-site roles for Software Engineers in Aurora, Littleton, Boulder, and Colorado Springs. Software Engineers at Four Sea Group can expect to work on mission...SeniorFull timeTemporary workWork experience placementFlexible hoursShift workDay shift$111.9k - $167.8k
...~ Location: Colorado Springs, CO – Hybrid or Onsite Title Senior Software Engineer Belong. Connect. Grow. with KBR! KBR’s National Security Solutions team provides high-end engineering and advanced technology solutions to our customers in the intelligence...SeniorTemporary workWork experience placementLocal areaRelocation packageFlexible hours$114k - $158k
...Overview Software Engineer (Experienced / Senior) at Boeing. The Boeing Space & Launch Division's GSCCE program is looking for Software Engineers (Experienced/Senior) in Colorado Springs, CO. This role involves updating, upgrading, and developing a modernized global...SeniorRemote work- ...NextGen Federal Systems in Colorado Springs is looking for a Software Engineer to develop and integrate Systems Tool Kit (STK) applications for mission analysis. The role includes software development, backend services using Python, and integrating STK with various external...Senior
- ...A technology solutions provider in Colorado Springs seeks a Senior High Performance Computing (HPC) Software Engineer to support advanced R&D initiatives. The ideal candidate will have over 10 years of software engineering experience, deep knowledge of HPC environments...Senior
- ...A leading aerospace company in Colorado Springs is seeking an experienced Software Engineer. This role involves full-stack development with Java, Python, and React.js, while participating in various stages of the product lifecycle. Candidates should have extensive software...Senior
- ...Lockheed Martin in Colorado Springs is seeking an experienced Software Engineer to generate operational plans and optimize satellite constellations to defend space. You will work on innovative solutions that contribute to our security and technological advancement. Ideal...Senior
$79.3k - $125.2k
...Northrop Grumman Corp. (AU) in Colorado Springs is seeking a Software Engineer to work on revolutionary systems, with a focus on development for the Sentinel program. The role requires a Bachelor's degree and offers a robust benefits package including medical coverage,...Senior- ...KBR is seeking a Sr Software Engineer to work on-site in Colorado Springs, CO. This role involves Java software development and support for satellite operations. The ideal candidate will have at least 5 years of experience in software engineering and must hold a TS/SCI...Senior
$110k - $190k
...Senior Full-Stack Software Engineer LMI is actively seeking a skilled, experienced Senior Full-Stack Software Engineer to join our team in Colorado Springs, CO. This role involves working directly with USSF and US Government customers, as well as analytical partners...Senior- ...A leading technology services provider is seeking a Senior Software Engineer in Colorado Springs, CO, to work on high-performance computing (HPC) projects. The role involves developing modeling and simulation software, mentoring junior engineers, and collaborating with...Senior
- ...Air Force Civilian Service is seeking a Full‑Time Information Technology Specialist, to serve as a Senior Software Engineer at Peterson Space Force Base, Colorado. This role involves designing and implementing AI-driven software solutions for Human Resources. Applicants...SeniorFull timeRemote work
- ...Bright Vision Technologies is seeking a Software Engineer (HPC Linux) for a multi-year project in Colorado Springs, CO. The ideal candidate will have at least 10 years of experience in software engineering, proficiency in languages such as Fortran, C, and/or C++, and knowledge...SeniorFull time
$140k - $200k
...- Speechify has no office. These include frontend and backend engineers, AI research scientists, and others from Amazon, Microsoft, and... ...), and a dedication to building accessible and inclusive software. ~ Excellent software engineering fundamentals: OOP, design...SeniorWork at office
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