Project Engineer III
$119.06k - $163.71kSierra Space
At Sierra Space, we build the missions and systems that keep our world secure in the domain above Earth.
Sierra Space team members share a spirit of innovation and collaboration and a belief that we can deliver on the boldest missions in space today. Together with our customers, we aim to safeguard our nation, sustain human presence in space, and secure the freedom of operations in low Earth orbit and beyond.
Our success is measured by the trust of those who rely on what we build and deliver, and our technologies keep the United States and its allies mission-ready throughout space.
We are mission-driven, and together, we are an extraordinary team.
About the RoleThe Project Engineer role focuses on leading and executing technical projects supporting Sierra Space's System Integration Laboratory (SIL) engineering team, with responsibility spanning multiple SIL and FlatSat environments across the organization. This position ensures the successful integration, test, and operational readiness of flight-like and engineering hardware/software configurations, while driving innovation and continuous improvement across lab operations. This role requires a strong technical foundation, advanced systems/integration engineering expertise, and the ability to collaborate effectively with cross-functional teams spanning engineering, test, program, manufacturing, and supplier organizations. The role involves overseeing the design, development, configuration, and sustainment of System Integration Laboratory and FlatSat environments-including hardware/software test benches, simulators, facilities, and ground support equipment-ensuring each environment meets technical specifications, configuration control, and quality standards, as well as cost and schedule constraints. This role works closely with System Integration leadership on multi-lab project planning, prioritization, and execution, balancing competing program demands across shared SIL/FlatSat resources. In this role, you will lead small cross-functional teams and projects across multiple SIL and FlatSat environments, effectively balancing technical, cost, and schedule constraints while overseeing the design, development, build-up, and integration of lab infrastructure and test configurations. You will plan and execute facility builds and modifications, including layout, infrastructure upgrades, and reconfiguration of lab spaces to support evolving program and test needs, while also collaborating on build and maintenance plans for test equipment such as hardware/software test benches, simulators, and ground support equipment to ensure availability, calibration, and sustained operational readiness. You will serve as a key contributor to test configuration planning and execution, ensuring configurations meet technical specifications, interface requirements, and quality/configuration management standards across concurrent lab setups, and you will provide technical estimation support to develop Basis of Estimates (BOEs) for lab integration, test, facility, and sustainment activities. In addition, you will conduct trade studies and lead technical evaluations related to lab architecture, test equipment, tool selection, and integration approaches, while providing technical guidance and mentorship to junior engineers and technicians supporting lab operations, integration, and test activities. You will manage supplier and vendor coordination for lab/test equipment by developing and managing Statements of Work (SOWs) and coordinating with contracts and quality teams on procurement, acceptance, and support agreements, and you will serve as liaison to Manufacturing and Planning teams, coordinating build schedules, resource availability, and hardware delivery to support lab and test timelines. You will also support Risk and Opportunity management across SIL/FlatSat projects, including risks related to lab availability, equipment readiness, facility constraints, and cross-program scheduling conflicts. Finally, you will communicate and coordinate across engineering, test, manufacturing, and program teams, delivering clear verbal and written communication of technical concepts, lab status, integration plans, and anomaly resolution to both technical and programmatic audiences. You will drive innovation and continuous improvement within the System Integration engineering team, including standardization of lab processes, tooling, and reusable test infrastructure across environments, and you will serve as the bridge between Engineering and Program offices to resolve conflicts and represent the voice of all stakeholders-including support functions, manufacturing, test teams, and customers-regarding SIL/FlatSat capability, availability, and performance. About YouOur mission is driven by an unyielding commitment to advancing space-based technology in service of our customers and safeguarding national security. We seek individuals who are passionate about innovating beyond boundaries and relentlessly pursuing solutions that protect, preserve and empower - to join us in this critical mission.
We're looking for team members who align with our values, mission and goals - while also meeting the minimum qualifications below. The preferred qualifications are a bonus, not a requirement.
Minimum Qualifications:- Requires bachelor's degree in a related field (or equivalent work experience in lieu of degree or master's +3 yrs experience).
- Typically, 5+ years of related experience.
- Strong technical foundation on which to build project/programmatic skills.
- Ability to lead small cross-functional teams and projects.
- Advanced technical knowledge and expertise in the relevant engineering discipline.
- Strong project management skills, including the ability to lead technical teams and ensure projects are completed within budget and scheduling constraints.
- Excellent communication, leadership, and problem-solving skills.
- General knowledge of two or more functional disciplines outside of engineering (e.g., supply chain, manufacturing, operations, program management).
- Thorough knowledge and understanding of risk and opportunity management.
- Expertise in communicating and coordinating across engineering and functional teams.
- Clear verbal and written communication of technical concepts, plans, and actions.
- The ability to obtain and maintain a U.S. Security Clearance is required.
Preferred Qualifications:
- Solid understanding of spacecraft and ground network systems, including network hardware and software subsystems and components.
- Prior experience in project management activities.
- Professional Certifications: Project Management Professional (PMP) certification.
- Experience with systems engineering and integration.
- Proficiency in project management software and tools (e.g., MS Project, Smartsheets, Jira).
- Experience with 2D CAD software and engineering design tools.
- Knowledge of industry standards and regulations.
- Experience in product lifecycle management (PLM).
- Familiarity with Agile and Lean methodologies.
- Strong analytical and decision-making skills.
- Demonstrated ability to drive innovation and continuous improvement initiatives.
Pay Range:
$119,064.00 - $163,713.00Your actual base compensation will be determined on a case-by-case basis and may vary based on job-related knowledge and skills, education,experience, internal equity and market competitiveness.
IMPORTANT NOTICE:
This position requires the ability to obtain and maintain a U.S. Security Clearance. U.S. Citizenship status is required as this position needs an active U.S. Security Clearance for employment. Non-U.S. citizens may not be eligible to obtain a security clearance. The Department of Defense Consolidated Adjudications Facility (DoD CAF), a federal government agency, handles the adjudicative aspects of the security clearance eligibility process for industry applicants. Adjudicative factors which affect the outcome of the eligibility determination include, but are not limited to, allegiance to the U.S., foreign influence, foreign preference, criminal conduct, security violations and illegal drug use.
Elevate Your CareerAt Sierra Space, we are committed to your personal and professional development. We empower you to make profound and meaningful contributions and foster a vibrant culture of collaboration, where teamwork ignites breakthrough innovations.
We also offer a generous benefit package, including medical, dental, and vision plans, 401(k) with 150% match up to 6%, life insurance, 3 weeks paid time off, and more.
Sierra Space is an industry-leading space and defense technology company providing satellites, spacecraft, and enabling mission systems and components. We deliver mission-proven technologies to our customers that safeguard our nation, protect space-based assets and enable space exploration.
Application Deadline: This role will remain posted until a qualified pool of candidates is identified.
Please note: Sierra Space does not accept unsolicited resumes from contract agencies or search firms. Any unsolicited resumes submitted to our website or to Sierra Space team members not through our approved vendor list or Talent Acquisition will be considered property of Sierra Space, and we will not be obligated to pay any referral fees.
Sierra Space Corporationis an equal opportunity employer and is committed to working with and providing reasonable accommodations to applicants with disabilities. If you need special assistance or a reasonable accommodation related to applying for employment withSierra Spaceor at any stage of the recruitment process, pleasecontact us.
$113.92k - $156.64k
...in a rapid and agile production environment. As a Mechanical Engineer III, you will lead the design, development, testing, and deployment... ...in mechanical engineering and the ability to manage multiple projects simultaneously. The ISR (Intelligence, Surveillance & Reconnaissance...SuggestedFull timeFor contractorsWork experience placementWork at officeImmediate start$108.5k - $149.18k
...Mechanical Engineer III Do you enjoy designing and developing innovative solutions to solve tough problems? Join our team to deliver... ...in mechanical engineering and the ability to manage multiple projects simultaneously. The ISR (Intelligence, Surveillance & Reconnaissance...SuggestedWork experience placementWork at office- ...DPP is seeking a Mechanical Engineer III for an opportunity with our client in the Aerospace and Defense industry. Work Location: Onsite in Englewood, CO Duration: 12 months Terms: W2 Contract Work Authorization: US Citizen; must be able to obtain...SuggestedContract work
- ...Systems Engineer III Englewood, CO Hybrid (4 days onsite / 1 day remote) $40-$45/hour W2 (Long-term contract) ABOUT... ...over 60 teams and 800+ users. You'll split your time between project work and application support, with a strong emphasis on ownership...SuggestedLong term contractLocal areaRemote work
$108.5k - $149.18k
...united and sustain our way of living. Join our team! As a Systems Engineer III, you will handle advanced tasks in requirements engineering,... ...guidance to junior engineers. You will take on significant project responsibilities, demonstrating expertise in architecture/design...SuggestedFull timeFor contractorsWork experience placementWork at officeImmediate start$108.5k - $149.18k
...Systems Engineer III The ISR (Intelligence, Surveillance & Reconnaissance), Aviation, and Security (IAS) business area is a leader in... ...providing guidance to junior engineers. You will take on significant project responsibilities, demonstrating expertise in architecture/...Work experience placement$71.34k - $98.09k
...transform humanity through technology and imagination! As an Electrical Engineer III, you will lead the design, development, and validation of electrical/electronic systems for aerospace and defense projects. You will be responsible for understanding complex circuits,...Full timeFor contractorsWork experience placementWork at officeImmediate start$113.92k - $156.64k
...materials and systems, join our amazing team! As a Structural Engineer III, you will lead the design, analysis, and certification of advanced... ...role requires in-depth expertise in structural engineering, project management, and the ability to lead cross-functional teams....Full timeFor contractorsWork experience placementWork at officeImmediate start- ...DPP is seeking a Structural Engineer III for an opportunity with our client in the Aerospace and Defense industry. Work location: Onsite in Englewood, CO Duration: 12 months Terms: W2 Contract Work authorization: US Citizen; must be able to obtain...Contract work
$113k - $215k
...Job Summary The Facilities Project Engineer III works with the Carbon Capture and Sequestration (CCS) project team during the FEED and design phases of the project, along with providing support as needed during appraise, construction, operation, and maintenance of...Full timeFor contractorsWork at office- ...*** Must have the ability to obtain/maintain a Secret Clearance *** We’re hiring a Senior Guidance, Navigation & Control III (GNC) Engineer. In this role, you’ll design, develop, and test algorithms, flight software, simulations, and related systems for aerospace...Contract work
$119k - $136k
...Reliability Engineer III Aurex is a mission-focused aerospace and defense company building the next frontier of deterrence. From hypersonics and missile defense to hardened networks and orbital systems, we design, test, and deliver the platforms that turn unproven...Contract workWork experience placement$113.92k - $156.64k
...IT skills in a meaningful work environment that supports and protects explorers and heroes? Join our team! As a Systems Security Engineer III, you will play a pivotal role in ensuring the security of our IT infrastructure. You will lead the design, implementation, and...Full timeWork experience placementWork at office$140k - $170k
OverviewThe Sr. Project Engineer role will oversee and execute the project controls and management of a multiple discipline, EPC project. Your main functions will include (but not limited to) responsibility for the full scope of the project such as direct support to a...Daily paidContract workWork experience placementFor subcontractorWork at officeLocal areaRelocationHome officeFlexible hoursShift work- ...About the Company We are seeking Electrical Engineer II and Electrical Engineer III professionals to join a growing Advanced Equipment Technologies... ...infrastructure, and emerging power solutions. This group supports projects from concept through commissioning and works across...Full timeWork at officeWork from home
$82k - $125k
...performing team, consider applying to join CONMED as a Mechanical Engineer III.This position is for a critical member of our Advanced... ...gain a deep understanding of their needs and meticulously define project requirements, ensuring precision and alignment with their expectations...Work experience placementImmediate startRelocationRelocation package$90k - $165k
...ambitious results.It’s the people. Our team is our competitive advantage and we are better together.YOUR MISSIONAs a Mechanical Engineer (II-III) at True Anomaly, you will be at the forefront of designing and developing the next generation of spacecraft that define the...Permanent employment$70k - $140k
DescriptionBrief Description:The Mainframe Systems Engineer III candidate must have experience in one or more of the following disciplines... ...staff • Adaptability• Architecture• Innovative Thinking• Project Management• Technical Strategy Development#LI-BM1Exempt Status...Full timeWork experience placementWork at officeRemote workWork from homeFlexible hours- ...Type: PermanentPay: $98800 - $183800Posted: 2026-09-21Title: Engineer III / IV - Wind CollectionLocations: Denver, CO / Minneapolis, MN... ...collection, medium voltage distribution systems, and renewable projects through 500kV. This position works closely with Engineering Project...Work experience placement
- ...Now Hiring: Project Engineer Location: Englewood, CO | Schedule: Monday through Friday | WCG Construction is growing-and we're hiring a Project Engineer! WCG's vision is... to proudly build better and grow to be the Rocky Mountain region's premier contractor...Contract workFor contractorsFor subcontractorWork at officeImmediate startMonday to Friday
$72k - $90k
...Job Summary The Project Engineer (PE) supports the planning, coordination, and execution of construction projects from pre-construction through closeout. This role assists project managers and superintendents in managing schedules, budgets, subcontractors, and documentation...For contractorsWork experience placementFor subcontractorCasual workWork at officeAfternoon shift- ...OVERVIEW Merrick & Company's growing Project Controls team is looking for a Senior Project Controls Engineer , proficient in cost, specifically related to survey/engineering/budgeting, to support the Geomatics Business Unit. The position is located in our Greenwood...Contract workWork at office
$100k
...POSITION/TITLE: PROJECT ENGINEER LOCATION: Greenwood Village, CO DEPARTMENT: T1 Construction MANAGER: PROJECT MANAGER PAY GRADE: $60,000 TO $100,000 / DOE GENERAL DESCRIPTION : An experienced Project Engineer handles the coordination and completion...For contractorsFor subcontractorWork at officeLocal areaWeekend workAfternoon shift$28.84 - $57.69 per hour
...will collaborate closely with a dedicated Project Manager, reporting to the Business Unit... ...solutions to resolution. Leverage standard engineering technologies to provide technical support... ...Engineer I to Project Engineer II, III, or a Senior role is based on performance...Hourly payTemporary workFor contractorsWork experience placementFor subcontractorWork at officeMonday to Friday- ...Staffing Solutions is currently seeking a high-caliber Pipeline Engineer III for a direct-hire opportunity with our client's team of... ...infrastructure markets. Known for delivering technically challenging projects and exceptional client service, Campos EPC partners with major...
- ...Title: Project Engineer I Reporting to: Office Director Overview of Role The Project Engineer I will aid project management... ...of the project while under the direction of the PE-II or PE-III. The Project Engineer I assists in the management, supervision...Contract workFor contractorsWork at office
$80k
...Primary duties include the following **_ : · Manage 8 to 10 active projects in various stages of implementation and project · Conduct... ...analysis in a technical field (college research or career) · Engineer-in-Training desired · Strong research, analysis, and problem-...$173.26k - $238.23k
...the boundaries of advanced infrared technology to deliver mission‑relevant capabilities to the warfighter, and we are seeking a Project Engineer II to lead the effort. In this role, you will serve as a key technical lead, bridging IRAD‑heritage technology with the...Full timeFor contractorsWork experience placementWork at officeImmediate start- ...Project Engineer Centennial, CO Job Title: Project Engineer Company: Loenbro, LLC Business Unit/Department: Project Operations Location: Centennial, CO Reports to: Project Manager or Area Manager Employment Type: Full-Time FLSA Classification:...Full timeContract workFor subcontractorWork at officeLocal area
$70k - $89k
...Dominion Water & Sanitation District in Greenwood Village, CO is looking for a full-time Project Engineer who is ready to help shape essential water infrastructure projects from concept to completion. If you're ready to take ownership of meaningful work and grow your...Full timeFor contractorsMonday to Friday
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Project Engineer III. Be the first to apply!
- implementation project manager remote Centennial, CO
- project finance Centennial, CO
- project controls Centennial, CO
- special projects Centennial, CO
- projects work from home Centennial, CO
- project technician Centennial, CO
- projects Centennial, CO
- software implementation project manager Centennial, CO
- project intern Centennial, CO
- capital projects Centennial, CO




