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Field Engineering Work Package Planner
TerraPower LLC.
Kemmerer, WY
…The role works closely with the Construction Manager, Field Engineer, Constructors, Site Design Engineering, Project Controls, and Records Management so that crews start work only with a…
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Technical AI Systems Engineer (1 day telework/week, TS/SCI with Polygraph required)
Red Alpha
Annapolis Junction, MD
We are seeking an experienced Technical AI Requirements Systems Engineer to support the planning, design, and implementation of a mission-critical system integrating AI-enabled…
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AI/ML Software Engineer
Red Alpha
Annapolis Junction, MD
As an AI/ML Software Engineer, you will help design, develop, test, and maintain scalable software solutions and prototypes in a collaborative, full-stack development environment. You will…
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Core Repairs Engineer
GE Vernova International LLC
United States
…Repairs to Service Onshore and Offshore Wind Turbines. The Repair Engineer will develop repair procedures and tooling required to enable key repair capabilities for Service NPI. This…
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Lead Generator Controls Engineer
GE Vernova Operations LLC
Remote, United States
We are seeking a Lead Generator Controls Engineer to provide technical leadership, drive innovation, and guide the successful execution of complex engineering projects that shape the future…
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Back Office Support Engineer
GE Grid Solutions, LLC
United States
GE Vernova is seeking a skilled Back Office Support Engineer to provide remote technical, engineering, and operational support for field commissioning, testing, and startup activities of…
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Digital Design Project Manager
MSA Professional Services, Inc.
St Paul, MN
This is a great opportunity for an experienced design engineer who wants to take their career in a new direction. You'll use your hands-on design and consulting experience to help improve…
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Engineering Specialist
CAI
Allentown, PA
We are looking for a Process Controls Engineer to execute projects that include instrumentation and control device selection, PLC and DCS system design, installation checkout, and system…
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Digital Design Project Manager
MSA Professional Services, Inc.
Baraboo, WI · Appleton, WI · Beaver Dam, WI · Bettendorf, IA · Cedar Rapids, IA · Champaign, IL · Des Moines, IA · Dubuque, IA · Duluth, MN · Kiel, WI · Madison, WI
This is a great opportunity for an experienced design engineer who wants to take their career in a new direction. You'll use your hands-on design and consulting experience to help improve…
Added 1 min ago
Senior Presales Systems Engineer - HPE Networking
Hewlett Packard Enterprise
San Diego, CA
We are seeking a Senior Presales Systems Engineer with deep expertise in networking, security, cloud architecture, and automation to support enterprise and federal customers across complex…
Added 1 min ago
Senior Mechanical Engineer
Hewlett Packard Enterprise
Sunnyvale, CA
Reporting to the Head of Mechanical Engineering, the Senior Mechanical Engineer will be a hands-on individual contributor responsible for the mechanical design, structural analysis,…
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Principal Mechanical Engineer
Hewlett Packard Enterprise
Sunnyvale, CA
Reporting to the Head of Mechanical Engineering, the Principal Mechanical Engineer will be a hands-on individual contributor responsible for the mechanical design, structural analysis,…
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Presales Consultants
Hewlett Packard Enterprise
Sunnyvale, CA
The Presales Systems Engineer plays an important role in supporting the sale and adoption of advanced networking and security solutions. This position combines technical networking…
Added 1 min ago
Space Flight Dynamics Engineer
The Aerospace Corporation
El Segundo, CA · Chantilly, VA · Colorado Springs, CO · Albuquerque, NM
…spans the capability lifecycle from concept and architecture design to performance assessment to application of space and space-enabled…
Added 1 min ago
Controls Engineer
Wunderlich-Malec
Boise, ID
Design, develop, and implement control systems (logic software and hardware) to meet process, machine, and integrated system requirements
Added 2 mins ago
Specialist, Manufacturing Engineer
L3Harris Technologies
Salt Lake City, UT
Job Title: Manufacturing Process Engineer, Cable Harness
Added 2 mins ago
Sr Leader, SDET
loanDepot
Irvine, CA · Plano, TX
…testing, identifying opportunities to improve test planning, test design, automation development, execution, maintenance, and defect…
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MA
Technical Engineer III
Manufacturers and Traders Trust Co
Wilmington, DE
- $106,700 to $177,900 USD / year
…support teams on a regular basis to implement and manage the design, development, and execution of technical solutions that meet or exceed current and future needs of the…
Added 4 mins ago
Project Engineer 3
Mercedes-Benz
Charleston, SC
…product-industrialization projects from feasibility and concept development through design, procurement, installation, commissioning, production readiness, acceptance, and handover;…
Added 4 mins ago
Platform Engineer - Omnea
US AMR-Jones Lang LaSalle Americas, Inc.
Remote, United States
JLL is looking for a Platform Engineer to own the implementation and ongoing support of integration, workflow configuration, system administration, and UI/UX work across our Omnea…
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Union Mobile Engineer
US AMR-Jones Lang LaSalle Americas, Inc.
Mountain View, CA
What this job involves - Under the direction of the Chief Engineer, the Mobile Engineer's primary responsibility is to provide joint supervision of the Engineering Department Staff and to…
Added 4 mins ago
Lead Operating Engineer
US AMR-Jones Lang LaSalle Americas, Inc.
Redmond, WA
Join JLL as a Building Engineer and play a critical role in ensuring the seamless operation of complex building systems while leading a high-performing maintenance team. This position…
Added 4 mins ago
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Network Engineer IV / Firewall Engineer
TEKsystems
Edison, NJ
- $75 to $85 USD / hour
DescriptionThe IT Network Engineer IV Firewall Engineer is an expert-level technical resource responsible for designing, implementing, maintaining, and supporting enterprise network and…
Added 4 mins ago
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Senior Network Engineer
TEKsystems
Memphis, TN
- $50 to $65 USD / hour
DescriptionNetwork Engineer Requirements1. Minimum 3 years of hands-on experience managing and implementing Fortinet FortiGate Firewallso Policy creation and managemento NAT, VPN, IPS, URL…
Added 4 mins ago
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Sr. Software Engineer (2026-8104)
Caretria
Washington, DC
- $120,000 to $160,000 USD / year
The Sr. Software Engineer’s role is to plan, design, develop and launch information systems in support of organizational functions and business processes. This position will apply…

Sierra Space

Software Engineer III - Flight Software

Centennial, CO, United States

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Job details

Experience: Typically, 5+ years of related experience.
Posting language: English
Posted: Nov 3, 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 Software Engineer III role involves designing, developing, and testing software applications for space systems and technologies. This advanced position requires expertise in at least one programming language, an advanced understanding of software development principles, and the ability to design and architect 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 involves mentoring and guiding other engineers, providing technical leadership and support.

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, and you will mentor and guide other engineers, providing technical leadership and support to foster growth and collaboration within the team. 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 +3 yrs experience).
Typically, 5+ years of related experience.
Expertise in one to multiple programming languages and advanced understanding of software development principles.
Ability to design and architect complex software systems.
Experience with different software development methodologies such as Agile and Scrum/Kanban.
Strong problem-solving skills.
Ability to mentor and guide other engineers.
The ability to obtain and maintain a U.S. Security Clearance is required.

Preferred Qualifications:

Experience with kernel-level programming.
Proficiency in programming languages (Python, C++, Java) and their ecosystems.
Familiarity with scripting languages (Bash, PowerShell) and automation tools (Ansible, Puppet, Chef).
Experience with Agile or Scrum/Kanban methodologies and tools (JIRA, Confluence, Jenkins).
Strong analytical skills, performance profiling, and debugging complex systems.
Excellent communication and teamwork skills, and efficient with collaborative tools (GitHub, GitLab, Bitbucket) and development ceremonies (daily standup, backlog grooming, work planning, task estimation, retrospectives, etc.).
Familiarity with containerization (Docker).
Understanding of network protocols, security principles, and secure coding practices.
Ability to write and maintain technical documentation.
Strong problem-solving skills and experience with CI/CD pipelines and automated testing.
Experience with continuous integration and automated test.
Experience utilizing and setting up static analysis tools.

Compensation:

Pay Range:

$129,776.00 - $178,441.25 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.

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 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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