NewLEAD ENGINEER - PRINCIPAL ENGINEER - Instrument Mechanical Engineer - Boulder, CO Southwest Research InstituteLEAD ENGINEER - PRINCIPAL ENGINEER - Instrument Mechanical Engineer - Boulder, COBoulder, COProduce mechanical designs using CAD software including layouts, drawings, bill of material development, mass properties management, integration and test plans, procedure development, verification and test plans. Daily and Monthly Responsibilities: Develop complex mechanical designs for instruments, prototype development, and proposals including production of CAD models, drawings, and test procedures.
NewLEAD ENGINEER - PRINCIPAL ENGINEER - Laser Development Engineer - Boulder, CO Southwest Research InstituteLEAD ENGINEER - PRINCIPAL ENGINEER - Laser Development Engineer - Boulder, COBoulder, COThis includes operating, maintaining, and aligning high power lasers including diode fiber lasers, YAG lasers, OPO lasers, TiS lasers, fs-lasers, and optical/laser design. 7+ years: Laser operation and engineering for one or more of the following: diode lasers, external cavity lasers, laser optical systems and components, laser spectrometers, laser diffraction and vis/NIR detectors.
Principal SDET, Cybersecurity Test Engineer JouléPrincipal SDET, Cybersecurity Test EngineerDenver, CO$144,000–$180,000 / yearTechnical Leader, this role is responsible for developing and driving the cybersecurity testing strategy across the Software Quality Engineering organization while enabling the broader organization to consistently implement and execute a unified cybersecurity testing approach. A core focus of this role is embedding cybersecurity as a continuous, front-loaded component of the software development lifecycle to enable early identification and prevention of vulnerabilities and potential security risks, while maintaining compliance with medical device regulatory requirements.
NewLEAD ENGINEER - PRINCIPAL ENGINEER - Instrument Mechanical Engineer - Boulder, CO Southwest Research Institute - FulltimeLEAD ENGINEER - PRINCIPAL ENGINEER - Instrument Mechanical Engineer - Boulder, COBoulder, CO$117,894 / yearFull timeProduce mechanical designs using CAD software including layouts, drawings, bill of material development, mass properties management, integration and test plans, procedure development, verification and test plans. Daily and Monthly Responsibilities: Develop complex mechanical designs for instruments, prototype development, and proposals including production of CAD models, drawings, and test procedures.
LEAD ENGINEER - PRINCIPAL ENGINEER - Laser Development Engineer - Boulder, CO Southwest Research Institute - FulltimeLEAD ENGINEER - PRINCIPAL ENGINEER - Laser Development Engineer - Boulder, COBoulder, CO$117,894 / yearFull timeThis includes operating, maintaining, and aligning high power lasers including diode fiber lasers, YAG lasers, OPO lasers, TiS lasers, fs-lasers, and optical/laser design. 7+ years: Laser operation and engineering for one or more of the following: diode lasers, external cavity lasers, laser optical systems and components, laser spectrometers, laser diffraction and vis/NIR detectors.
Principal / Sr Principal Algorithms Software Engineer La Jolla Logic, IncPrincipal / Sr Principal Algorithms Software EngineerBoulder, CO$155,000–$180,000 / yearPrincipal Algorithm Software Engineer (Level 3): Bachelor's Degree in a STEM (Science, Technology, Engineering or Mathematics) discipline preferred from an accredited university and 5 years of related experience, or a Master's degree in a STEM discipline and 3 years experience, or a PhD and 1 year of experience. Principal Algorithm Software Engineer (Level 4): Bachelor's Degree in a STEM (Science, Technology, Engineering or Mathematics) discipline preferred from an accredited university and 8 years of related experience, or a Master's degree in a STEM discipline and 6 years experience, or a PhD and 4 year of experience.
NewChief Engineer/Principal Software Engineer CACIChief Engineer/Principal Software EngineerAurora, Colorado$114,600–$252,100 / yearLeadership Track Record: Proven experience as a Chief Engineer or senior technical delivery leader guiding large-scale teams (35+ personnel) through full SDLC in classified environments (Note: architectural vision is covered by our Chief Architect, so this role centers on execution, delivery, and team enablement). Job Title: Chief Engineer/Principal Software EngineerJob Category: EngineeringTime Type: Full timeMinimum Clearance Required to Start: TS/SCIEmployee Type: RegularPercentage of Travel Required: Up to 25%Type of Travel: Continental USAnticipated Posting End: 10/30/2026 .
NewChief Engineer/Principal Software Engineer CACI International Inc.Chief Engineer/Principal Software EngineerAurora, CO$114,600–$252,100 / yearLeadership Track Record: Proven experience as a Chief Engineer or senior technical delivery leader guiding large-scale teams (35+ personnel) through full SDLC in classified environments (Note: architectural vision is covered by our Chief Architect, so this role centers on execution, delivery, and team enablement). Stakeholder Engagement: Serve as a primary technical interface to leadership, government customers, and subcontractor teams, leading Technical Exchange Meetings (TEMs) and aligning execution with mission goals.
Sr. Principal Software Engineer - Boulder, Colorado Davidson Technologies, Inc.Sr. Principal Software Engineer - Boulder, ColoradoBoulder, COFull timeEducation:Bachelor's Degree in a STEM (Science, Technology, Engineering or Mathematics) discipline from an accredited university and 9 years of related experience;OR a Master's degree in a STEM discipline and 7 years of related experience;OR a PhD in a STEM discipline and 4 years of related experience. Experience using the Atlassian Tool Suite (e.g., Jira, Confluence, Bitbucket).Demonstrated technical leadership experience (task lead, feature lead, or mentoring).Experience across the full software development lifecycle (requirements, design, implementation, integration, test, deployment, and sustainment).Clearance:
Software Engineer Iii/Sr/Principal, Flight Software (Contractor) Sierra SpaceSoftware Engineer Iii/Sr/Principal, Flight Software (Contractor)Centennial, CO$60.87–$83.69 / hourThe Software Engineer participates in all portions of the software life cycle (concept development, requirements definition, design, development, testing, and deployment) of flight software to support ongoing and future small satellite programs. Your work will ensure we meet customer requirements by making data-driven decisions in architecting, implementing and testing the design in a testbed prototype and subsequent delivery of the flight code.
Principal Software Engineer Technical IntegrityPrincipal Software EngineerBoulder, ColoradoYou’ll work alongside senior peers solving challenging systems problems in a small, high-trust team where every hire makes a visible impact. If you’re a senior software engineer or principal technologist who thrives on autonomy, deep technical challenges, and building at the frontier of AI-assisted engineering, we’d love to hear from you.
Sr Principal Software Engineer (Clearance Required) Sierra Space CorporationSr Principal Software Engineer (Clearance Required)Centennial, CO$206,107–$283,397.50 / yearYou will make high-level design decisions that significantly impact program cost, schedule, and technical performance, drive the strategic direction of the software engineering team, and demonstrate project leadership, strong problem-solving skills, and effective communication with non-technical stakeholders. Furthermore, you will architect and oversee the technical aspects of large-scale projects, innovate, and make strategic decisions regarding the adoption of new technologies and methodologies to enhance efficiency and effectiveness.
Sr. Principal Software Engineer Sierra Space CorporationSr. Principal Software EngineerLouisville, COYou will make high-level design decisions that significantly impact program cost, schedule, and technical performance, drive the strategic direction of the software engineering team, and demonstrate project leadership, strong problem-solving skills, and effective communication with non-technical stakeholders. Furthermore, you will architect and oversee the technical aspects of large-scale projects, innovate, and make strategic decisions regarding the adoption of new technologies and methodologies to enhance efficiency and effectiveness.
Principal Software Engineer CVS Health CorpPrincipal Software EngineerCO$144,200–$288,400 / yearOperating as both a senior individual contributor and technical leader, you will partner closely with product, architecture, and engineering leadership to make pragmatic, high‑impact design decisions that balance speed, quality, and long‑term maintainability. Partner with teams and serve as subject matter expert to provide benchmarked solutions to multiple, complex technical projects/initiatives within own area of expertise and organize cross-departmental application architectural solutions.
Sr Principal Software Engineer (Clearance Required) Sierra SpaceSr Principal Software Engineer (Clearance Required)Louisville, CO$206,107–$283,397.50 / yearYou will make high-level design decisions that significantly impact program cost, schedule, and technical performance, drive the strategic direction of the software engineering team, and demonstrate project leadership, strong problem-solving skills, and effective communication with non-technical stakeholders. Furthermore, you will architect and oversee the technical aspects of large-scale projects, innovate, and make strategic decisions regarding the adoption of new technologies and methodologies to enhance efficiency and effectiveness.
Sr. Principal Software Engineer Sierra SpaceSr. Principal Software EngineerLouisville, COYou will make high-level design decisions that significantly impact program cost, schedule, and technical performance, drive the strategic direction of the software engineering team, and demonstrate project leadership, strong problem-solving skills, and effective communication with non-technical stakeholders. Furthermore, you will architect and oversee the technical aspects of large-scale projects, innovate, and make strategic decisions regarding the adoption of new technologies and methodologies to enhance efficiency and effectiveness.
Sr. Principal Algorithms Software Engineer - Boulder, Colorado Davidson Technologies, Inc.Sr. Principal Algorithms Software Engineer - Boulder, ColoradoBoulder, COFull timeJob Requirements:Principal Algorithm Software Engineer (Level 3): Bachelor's Degree in a STEM (Science, Technology, Engineering or Mathematics) discipline preferred from an accredited university and 5 years of related experience, or a Master's degree in a STEM discipline and 3 years experience, or a PhD and 1 year of experience. Principal Algorithm Software Engineer (Level 4): Bachelor's Degree in a STEM (Science, Technology, Engineering or Mathematics) discipline preferred from an accredited university and 8 years of related experience, or a Master's degree in a STEM discipline and 6 years experience, or a PhD and 4 year of experience.
Principal Software Engineer (TS/SCI) {S} ARKA Group, L.P.Principal Software Engineer (TS/SCI) {S}Aurora, ColoradoBeyond direct design, the architect is expected to drive technical consensus through trade studies, proactively identify and mitigate technical risks, act as the primary technical interface to leadership, government customers, and sub-contractor CA/CE’s, and actively participate in the mentorship and growth of the distributed engineering team, ultimately joining our team to help shape the development and delivery of custom solutions and providing significant opportunities for personal skill development at ARKA. ARKA is seeking an accomplished Software Architect/Principal Software Engineer who is deeply customer mission-focused and passionate about providing strategic technical leadership in the software architecture and design of complex government systems, requiring proven experience leading programs involving 30+ developers in a distributed environment.
Principal Software Engineer (Java & AWS) VertaforePrincipal Software Engineer (Java & AWS)Denver, COAlthough not a primary duty compared to developing and supporting code, a software engineer at Vertafore also works directly with customers as part of a cross-functional team, which means you need to be a proactive self-starter, able to multi-task in a fast-paced environment and be service-focused to help nurture the customer experience. You will work with a fast-paced, skilled team of business analysts, conversion engineers,architects,developers and quality assurance engineers across multiple high-profile projects with development responsibility of assigned projects.
Principal Software Engineer Red 6Principal Software EngineerLouisville, ColoradoYou will identify and implement novel solutions to cutting-edge augmented reality challenges, working across rendering systems, game engine infrastructure, simulation frameworks, and hardware-software integration. Our primary technology, supporting our ATARS product, enables pilots to simulate the cognitive challenges of flying while accessing realistic, scalable training in dynamic outdoor environments.