Senior Software Engineer
Oasys
Senior Software Engineer, Level 3 OASYS, INC., a Leading‑Edge Government contractor, is seeking applicants for a Senior Software Engineer, Level 3, to support our customer in Littleton, CO. Summary OASYS, INC. is seeking a full‑time Software Engineer. In this role, you will support the software engineering lifecycle following the program Software Development Plan (SDP) to include requirements analysis, object‑oriented analysis & design, code & unit test, integration, and support to formal test/delivery. The successful candidate will have experience and/or knowledge of languages such as C or C++. Must be a US Citizen; this position will require government security clearance prior to starting. This position is located at a facility that requires special access. Basic Qualifications Experience with programming languages such as C, C++ Experience or classroom knowledge with embedded software/hardware Bachelor's degree in computer science, Aerospace Engineering or other related degree program from an accredited college/university Desired Skills Knowledge of Agile Software Development Ability to work in a collaborative and team‑based environment Excellent written and verbal communication skills Knowledge of Model Base Systems Engineering (MBSE) Previous experience designing to software requirements Experience with full software life cycle development including SW design, architecture and integration & test Clearance Statement This position requires a government security clearance, you must be a US Citizen for consideration. Clearance Level: Secret Ability to Work Remotely Onsite Full‑time: The work associated with this position will be performed onsite. Schedule for this Position 9x80 every other Friday off Benefits BC/BS of Alabama Health & Dental VSP Vision Employee Stock Ownership Plan (ESOP) 401‑K with Matching Flexible Spending Account Tuition Reimbursement Holidays Vacation Short‑term/Long‑term Disability Equal Employment Opportunity EOE AA M/F/Vet/Disability Equal Employment Opportunity is the Law: #J-18808-Ljbffr
$93.2k - $164.45k
...Lockheed Martin in Littleton, Colorado, is seeking an Experienced Professional in Software Engineering to support hypersonic missile development. You will work on the Conventional Prompt Strike program, ensuring software integration and system performance. The ideal candidate...SeniorLockheed Martin Corporation
Centennial, CO9 hours ago$130k - $190k
...Matters Defense Solutions specializes in software development and solutions, specialized... ...sensing technologies and operations, with senior-level personnel formerly from DIA, NRO,... ...subject matter experts, analysts, software engineers, and its data scientists to create...SeniorTemporary workRemote workFlexible hoursGrey Matters Defense Solutions
Centennial, CO1 day ago- ...RESPONSIBILITIES: Kforce is immediately seeking an experienced Senior Software Engineer in support of our enterprise telecommunications and mass media client based in Greenwood Village, CO. Summary: As a Senior Software Engineer on the Configuration Management and eXperimentation...SeniorHourly payContract workImmediate start
Kforce
Centennial, CO22 hours ago $93.2k - $164.45k
A leading aerospace company in Colorado is looking for a Senior Software Engineer to join their FSW/Sim Integration team. This role involves developing simulation software, enhancing test scripts, and collaborating closely with various teams to ensure integration standards...Senior$93.2k - $164.45k
Lockheed Martin in Littleton, CO is looking for a Senior Software Engineer to contribute to pivotal programs related to Space Vehicles and more. This role involves developing software for RF payloads, system verification, and collaborating with multiple teams for project...Senior- Lockheed Martin in King of Prussia, PA is seeking a Level 3 Ground Software Engineer to develop and maintain software solutions within an Agile framework. The candidate must possess a Final Top Secret security clearance and have a strong track record in software engineering...Senior
- Senior Software Engineer, Level 3 OASYS, INC., a Leading‑Edge Government contractor, is seeking applicants for a Senior Software Engineer, Level 3, to support our customer in Littleton, CO. Summary OASYS, INC. is seeking a full‑time Software Engineer. In this role, you...SeniorFull timeTemporary workFor contractorsRemote workFlexible hours
$93.2k - $164.45k
...security and prosperity. Join us in shaping a new era in space and find a career that's built for you! We are seeking for a Senior Software Engineer to join our FSW/Sim Integration team that develops Sim Software and provides support to the integration team in...SeniorFull timeTemporary workWork experience placementWork at officeRemote workRelocationFlexible hoursShift work$151.7k - $205.23k
...veteran and PhD astrophysicist, we support complex defense, space, software, systems, and mission-focused programs for government and... ...we operate: we are a reputation-driven team of highly skilled engineers and technical experts who are brought in for their depth, judgment...SeniorTemporary workWork experience placementFlexible hours$86.8k - $165.2k
...the strength of more than 100 years of experience and renowned engineering expertise to meet the needs of today’s mission and stay ahead... ...What You Will Do Design, develop, test, deliver, and maintain software for satellite ground systems. Work with talented teams of...SeniorContract workTemporary workWork experience placementWork at officeRemote workRelocationRelocation packageFlexible hoursRaytheon
Centennial, CO2 days ago- JSfirm.com in Lone Tree, Colorado, is seeking a Senior Software Engineer to lead software development in aerospace applications. You will collaborate with cross-functional teams and drive strategic projects, ensuring software excellence in simulation solutions. The ideal...Senior
$93.2k - $164.45k
...Integrated Product Team (IPT) is responsible for the algorithms and software that control it. Our group includes the Navigation, Guidance,... ...with current objectives and milestones. Support Systems Engineering and Architects in decomposing the larger system solution into...SeniorFull timeTemporary workWork experience placementImmediate startRelocationFlexible hoursShift work- Oasys, Inc. is seeking a full-time Senior Software Engineer, Level 3, to support the software engineering lifecycle in Littleton, CO. The ideal candidate will have experience with C/C++, embedded systems, and a Bachelor's degree in computer science or a related field....SeniorFull time
$93.2k - $164.45k
Job Summary Lockheed Martin Space is seeking a Senior Software Engineer to join our team in Littleton, CO. The role involves contributing to challenging programs related to Space Vehicles, Hypersonics, Human Space Flight and Interplanetary Missions, Missile Defense, and...SeniorFull timeTemporary workRelocationFlexible hoursShift work$119.77k - $140.9k
...decisions and actions, and good citizenship. Works alongside product engineering team. Responsible for designing, testing, developing,... ...understands Scrum while developing a point of view on an effective software delivery process. Reviews tasks critically and ensures they...SeniorFull timeTemporary workWork experience placementWork at officeLocal areaRemote workFlexible hours3 days per week$150k - $180k
...to research and guide the development team in new product features via new or existing technologies. We are seeking a Network Software Engineer to design and implement high-performance networking subsystems. Unlike a traditional Network Engineer who configures routers and...SeniorWork at officeLocal areaRemote workQuantum
Englewood, CO1 day ago- ...that moves fast and works with some of the world's coolest projects - join us. Who you are You take pragmatic approaches to writing software You test drive and refactor your code with confidence You avoid large upfront design and focus on incremental change You enjoy...SeniorInternshipWork at officeRemote work
Suite Studios
Denver, CO1 day ago $140k - $225k
...clients across retail, fintech, edtech, software development, and R&D sectors. We specialize... ...are seeking dynamic polyglot software engineers who can code in multiple languages and... ...by clicking the "Easy Apply" button. Seniority level Not Applicable Employment type...SeniorFull timeRemote workFlexible hoursJobot
Denver, CO9 hours ago- A leading technology company is seeking a Network Software Engineer to design high-performance networking subsystems. Responsibilities include developing low-latency networking software and collaborating with remote teams. Ideal candidates will have extensive experience...SeniorRemote work
- ...scaling up fast and looking for deeply technical builders who want to have outsized impact early. Our core engineering team is looking for a builder, a Senior Software Engineer who thrives in early-stage (ambiguous) environments. You’ve seen products through from v1 to...Senior
Saris Ai
Denver, CO9 hours ago $102.18k - $152.62k
...You will not be penalized for redacting or removing this information. STATEMENT OF DUTIES General Statement Of Duties: The Senior Software Engineer is responsible for working on various projects such as case management systems, electronic filing systems, jury systems,...SeniorFull timeWork experience placementLocal areaTrial periodColorado Judicial Branch
Denver, CO9 hours ago$175k
...how organizations build, ship, and scale digital products and APIs are the connective tissue that makes it possible. As a Senior Software Engineer , you’ll play a critical role in shaping impactful product areas by collaborating within high‑velocity engineering pods and...SeniorGravitee Topco Limited.
Denver, CO4 days ago- ...Senior Software Engineer Location: Denver, CO 80112 US Posted: 01/05/2026 Employment Type: Direct Hire Industry: Engineering Job Number: 19682 Pay Rate: 130,000 Job Description Our client in Englewood, Colorado is seeking a talented Senior Software Engineer to join their...SeniorVisa sponsorship
Frontline Source Group
Denver, CO2 days ago $180k - $220k
...Datavanters bring a diversity of professional, educational and life experiences to realize our bold vision for healthcare. Senior Software Engineer The Role As a Senior Software Engineer, you will lead major initiatives that advance Datavant’s platform scalability...SeniorDatavant
Denver, CO9 hours ago$197.4k - $232k
...Type: FullTime Location Type: Remote Department Engineering Compensation: $197.4K – $232K • Offers Equity At... ...One Team. One Data Streaming Platform. About the Role Senior Software Engineers II at Confluent take ownership of critical backend...SeniorFull timeRemote workConfluent
Denver, CO3 days ago$143.49k - $197.29k
...Do you enjoy developing new products and services? Join us! Our Software Engineers work in an agile, collective environment. As a Senior Software Engineer, you will be responsible for driving the strategic development and continuous improvement of software systems for...SeniorWork experience placementJSfirm
Littleton, CO2 days ago$130k - $150k
## Senior Software EngineerApplylocations: Denver, USA: Salem, USAtime type: Full timeposted on: Posted 2 Days Agojob requisition id: JR10... ...AutoStore – moving things forward.**The Role:**As a Senior Software Engineer on the Qubit team, you will play a pivotal role in building...SeniorLocal areaAutoStore System
Denver, CO4 days ago- .... As we expand into Denver, we are building a new center of engineering excellence to design our new category of tactical robotic systems... ..., our communities, and our country. What You'll Do Our Senior Software Engineer will: Lead design and implementation of significant...SeniorPermanent employmentWork at officeFlexible hours
Instant Teams
Denver, CO1 day ago - ...About the Role We have multiple openings for Senior Software Engineers to join our core development team. As a Senior Software Engineer at our fintech startup, you will design and build critical components of our account-to-account payments platform. You’ll be working...SeniorFull timeWork experience placementRemote work
Drive Capital
Denver, CO9 hours ago - Four Sea Group, Inc. in Aurora, Colorado is seeking a Senior Software Engineer - Command & Control to design and develop software solutions in a secure mission environment. This role requires solid software engineering skills and the ability to work independently and collaboratively...SeniorFlexible hours
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