Jobs in the United States

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Added 3 days ago
Sr Principal Engineer Systems
Northrop Grumman
Redondo Beach
As an Integration and Test (I&T) Lead on this team, you will define and develop processes to be implemented at the segment, and element levels that verify, and validate requirements for the…
Added 3 days ago
Sr Principal Engineer Systems
CORP-Corporate Office
United States
As an Integration and Test (I&T) Lead on this team, you will define and develop processes to be implemented at the segment, and element levels that verify, and validate requirements for the…
Added 4 days ago
Systems Engineer Senior Staff - E5
Lockheed Martin
Littleton, CO · Littleton
The Lead Electrical Systems Integrator (ESI) plays a vital role in end-to-end program execution by guiding the technical development of electrical systems of the spacecraft (SV) through all…
Added 4 days ago
Systems Engineer Staff - E4
Lockheed Martin
Littleton, CO · Littleton
…formulation, design maturation, production/manufacturing, system level integration & test, and deployment into flight operations. The ESI has a strong understanding of Electrical SV…
Added 4 days ago
Electronic Engineer - SW Infrastructure
CORP-Corporate Office
United States
…technological advancements in our nation's history - from the first flight across the Atlantic Ocean, to stealth bombers, to landing on the moon. We look for people who have bold new ideas,…
Added 4 days ago
Senior Principal Embedded Software Engineer
CORP-Corporate Office
United States
Northrop Grumman Mission Systems is looking for a Senior Principal Embedded Software Engineer with the desire to learn new technologies and develop software for cutting edge Undersea…
Added 4 days ago
Mission Systems Engineer (Principal/Sr Principal) - Signatures Limitations and Constraints Management Lead (AHT)
Northrop Grumman
Linthicum Heights, MD
…technological advancements in our nation's history - from the first flight across the Atlantic Ocean, to stealth bombers, to landing on the moon. We look for people who have bold new ideas,…
Added 4 days ago
Electronic Engineer - SW Infrastructure
Northrop Grumman
San Diego
…technological advancements in our nation's history - from the first flight across the Atlantic Ocean, to stealth bombers, to landing on the moon. We look for people who have bold new ideas,…
Added 4 days ago
Senior Principal Embedded Software Engineer
Northrop Grumman
Annapolis
Northrop Grumman Mission Systems is looking for a Senior Principal Embedded Software Engineer with the desire to learn new technologies and develop software for cutting edge Undersea…
Added 5 days ago
Sr Spec, Integration & Test Engineering
L3Harris
Wilmington, MA
Mission Payload AI&T Management : Manage major subcontract cost, schedule, and performance and oversee the overall Mission Payload Flight AI&T (Assembly, Integration, and Test) activities.
Added 8 days ago
Sr Spec, Integration & Test Engineering
L3Harris Technologies
Wilmington, MA
Mission Payload AI&T Management: Manage major subcontract cost, schedule, and performance and oversee the overall Mission Payload Flight AI&T (Assembly, Integration, and Test) activities.
Added 8 days ago
Principal Electronics Payloads Subsystems Engineer
Northrop Grumman
San Diego, CA
…technological advancements in our nation's history - from the first flight across the Atlantic Ocean, to stealth bombers, to landing on the moon. We look for people who have bold new ideas,…
Added 9 days ago
Engineer Principal – Systems – Guidance, Navigation, and Controls (GN&C)
BAE Systems
Boulder, CO
Job Description This position is for an engineer who can lead a team to develop and test guidance, navigation, & control systems from preliminary design through flight for space programs.
Added 10 days ago
Engineer Principal – Systems – Guidance, Navigation, and Controls (GN&C)
BAE Systems
Boulder, CO
Job Description This position is for an engineer who can lead a team to develop and test guidance, navigation, & control systems from preliminary design through flight for space programs.
Added 10 days ago
Sr Software Engineer - Flight Software (Clearance Required)
Sierra Space
Louisville, CO · Centennial, CO
The Sr. Software Engineer role involves designing, developing, and testing software applications for space systems and technologies. This advanced position requires deep expertise in…
Added 11 days ago
Staff Test Engineer (Weapon Systems)
CORP-Corporate Office
United States
The Staff Flight Test Engineer – Weapons Lead is responsible for leading the planning, coordination, and execution of developmental and operationally relevant test activities associated…
Added 11 days ago
Staff Test Engineer (Weapon Systems)
Northrop Grumman
Edwards AFB
The Staff Flight Test Engineer – Weapons Lead is responsible for leading the planning, coordination, and execution of developmental and operationally relevant test activities associated…
Added 11 days ago
Sr Staff Engineer Optical
Northrop Grumman
Redondo Beach, CA
Lead the development of architectures and requirements for space EO/IR payload
Added 12 days ago
Systems Engineer - Level 4
Northrop Grumman
Gilbert · Dulles
This Systems Engineer -Level 4 position is for an individual contributor within a multi-disciplinary engineering team. The specific responsibilities of this position will be to manage the…
Added 12 days ago
Manager Software Engineering 2 - Morrisville (TS/SCI)
Northrop Grumman
Morrisville
Northrop Grumman Space Systems is seeking a Space Software Engineering Manager with a desire to learn new technologies to join the Payload and Ground Eastern Region team. The manager will…
Added 12 days ago
Manager Software Engineering 2 - Fairfax (TS/SCI)
Northrop Grumman
Fairfax
Northrop Grumman Space Systems is seeking a Space Software Engineering Manager with a desire to learn new technologies to join the Payload and Ground Eastern Region team. The manager will…
Added 12 days ago
Systems Engineer - Level 4
SP - Orbital Space Systems
United States
This Systems Engineer -Level 4 position is for an individual contributor within a multi-disciplinary engineering team. The specific responsibilities of this position will be to manage the…
Added 12 days ago
Principal Electrical Engineer, Mixed-Signal & Compute Systems (OISL Payload) - TeraWave
Blue Origin Personnel, LLC
United States
Serve as the technical lead and subject matter expert for OISL payload electronics, defining architecture, requirements, trade studies, and design standards from concept through flight…
Added 12 days ago
Manager Software Engineering 2 - Fairfax (TS/SCI)
CORP-Corporate Office
United States
Northrop Grumman Space Systems is seeking a Space Software Engineering Manager with a desire to learn new technologies to join the Payload and Ground Eastern Region team. The manager will…
Added 12 days ago
Manager Software Engineering 2 - Morrisville (TS/SCI)
CORP-Corporate Office
United States
Northrop Grumman Space Systems is seeking a Space Software Engineering Manager with a desire to learn new technologies to join the Payload and Ground Eastern Region team. The manager will…

Sierra Space

Sr Software Engineer - Flight Software (Clearance Required)

Louisville, CO, United States
Centennial, CO, United States

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Job details

Experience: Typically, 8+ years of related experience.
Posting language: English
Posted: Oct 28, 2026

Original job description

Sierra Space Careers:

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 Role The Sr. Software Engineer role involves designing, developing, and testing software applications for space systems and technologies. This advanced position requires deep expertise in multiple programming languages, an advanced understanding of software development principles, and the ability to design, architect, and implement complex software systems. The role includes writing clean, maintainable code, collaborating with team members to understand project requirements, and contributing to the development of innovative software solutions. Additionally, this position may involve providing technical leadership, mentorship, and making high-level design decisions that significantly impact program cost, schedule, and technical performance.

In this role, you will design, develop, and test software applications for space systems and technologies while writing clean, maintainable code that adheres to best practices and coding standards. You will architect and implement complex software systems to meet project requirements and collaborate with team members to understand project needs, contributing to the development of effective software solutions. Utilizing version control systems such as Git, you will manage code changes and work collaboratively with team members. You will participate in code reviews to ensure code quality and adherence to development standards, troubleshoot and resolve software-related issues in a timely manner, and document software configurations, processes, and procedures for future reference. Staying current with industry trends and advancements in software development and space technologies will be essential. Additionally, you will provide technical leadership, mentorship, and support to team members, making high-level design decisions that have significant impacts on program cost, schedule, and technical performance. About You Our 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 +6 yrs experience).
Typically, 8+ years of related experience.
Deep expertise in multiple programming languages and software development principles.
Ability to design, architect, and implement complex software systems.
Experience with different software development methodologies such as Agile and Scrum/Kanban.
Strong leadership skills to lead a team of engineers.
Ability to make high-level design decisions that will have significant impacts on program cost, schedule, and technical performance.
An active Top Secret with SCI eligibility U.S. Security Clearance is required.

Preferred Qualifications:

Strong technical understanding of C++ and Object-Oriented Programming.
Experience implementing client-server applications using socket I/O using TCP/UDP.
Experience implementing loosely coupled applications using PUB/SUB messaging.
Familiarity with Open Standards such as CCSDS, C2MS, Open Mission Systems (OMS), and Universal C2 Interface (UCI).
Experience with spacecraft flight software development.
Experience developing mission management and/or payload control software.
Demonstrated experience leading a team developing software.
Experience with software tools for requirements tracking, code reviews, static analysis, library and artifact repository, and automated build.
Knowledge of software development methodologies such as Agile/Scrum.
Experience and knowledge of Software Design Patterns.
Experience using SysML/UML to create Software Designs
Experience testing and debugging on both Software in the Loop (SITL) and Hardware in the Loop (HITL, on target platform) environments.
Experience with Source Code Configuration Management platforms (GIT, SVN).
Experience developing on Linux.
Experience with network configurations including netco.
Experience with embedded programming including new board build up.
Experience optimizing computer system performance including optimization for timing.

Compensation:

Pay Range:

$156,666.00 - $215,436.75 Your 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 current/active Top Secret with SCI eligibility 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 Career At 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 Corporation is 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 with Sierra Space or at any stage of the recruitment process, please contact us.

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