3+ YOEUS citizen with bachelor's in CS/CE/SE, 3+ years related experience, current Secret clearance and ability to obtain Top Secret, familiarity with systems engineering for software, Agile/DevSecOps, and strong communication skills.
Space Dynamics Laboratory: Develops advanced sensor systems and satellites for space missions.
8+ YOEBachelor's in a technical field, 8+ years software systems engineering experience, active DoW SECRET clearance, U.S. citizenship, proficiency with SysML (Cameo), Google Protocol Buffers, containerized environments, and object-oriented languages (C#, C++, Java).
Davidson Technologies: Delivers engineering and technology solutions for national security missions.
10+ YOERequires 10+ years of systems engineering experience, a bachelor's degree in engineering or related discipline, MBSE and SysML expertise, systems architecture experience, Agile/SAFe knowledge, and an active Secret clearance or higher.
Model-Based Systems Engineering (MBSE), SysML, Cameo Systems Modeler, MagicDraw, IBM DOORS, Agile, Scaled Agile Framework (SAFe), C++, Java, Python, DO-178C, AFMAN 91-119, DO-330, Risk Management Framework (RMF), Secure Software Development Framework (SSDF), DevSecOps, Jira, Confluence, CI/CD
Sentinel - Sr. Principal Systems Engineer - 14725*
Roy or Manhattan Beach or Colorado Springs
$123k-$204k/yrOnsiteFull Time
Northrop GrummanNYSE: NOC: Develops and manufactures advanced aerospace, defense, and space systems.
8+ YOE8+ years in systems engineering; US citizen with active DoD Secret clearance; MBSE; cloud/IT-centric systems; capable of leading cross-functional teams.
Model-based systems engineering, MBSE, Cloud, High performance computing, Virtualization, Software systems
General Atomics Aeronautical Systems: Designs and manufactures unmanned aircraft and radar systems.
0+ YOEBachelor's in computer science or related (or equivalent experience), ability to design, implement, test and maintain software, strong communication and problem-solving skills, ability to obtain DoD security clearance.
General Atomics Aeronautical Systems: Designs and manufactures unmanned aircraft and radar systems.
11+ YOEManage software engineering projects and personnel for embedded controls, ensure requirements traceability, apply ARP4754/DO-178 standards, and possess 11+ years software engineering experience with aircraft braking systems and certification experience.
3+ YOEBS/MS in engineering, computer science, software, mathematics, or physics; 3 yrs related experience (2 yrs with MS); currently hold Secret clearance and able to obtain Top Secret/SCI; systems integration and analysis experience; technical writing and presentation skills.
BAE SystemsLondon Stock Exchange: BA: Designs and manufactures advanced defense and aerospace systems.
3+ YOEBachelor's or Master's in computer science/software/mathematics, 3 years' experience with BS (1 year with MS), ability to obtain Secret clearance, familiarity with DOORS, Cameo/MagicDraw, SysML/UPDM, and MBSE.
DOORS, Cameo/MagicDraw, SysML, UPDM, Model-Based Systems Engineering (MBSE)
NICENASDAQ: NICE: Provides AI-powered software for customer engagement and financial compliance.
10+ YOE10+ years software engineering experience; deep system design and distributed systems expertise; strong coding in Java, Python, or C#; cloud-native experience (AWS/Azure/GCP); leadership and mentoring skills.
AtlassianNASDAQ: TEAM: Develops software for team collaboration and project management.
Experienced systems engineer familiar with concurrent, low-level, cross-platform software; comfortable with Go and Git internals; builds fast, reliable, invisible production systems and integrations with coding agents.
Go, Git, Cursor, Claude Code, Copilot, Codex, Gemini CLI, SQLite
Sentinel - Sr. Principal Systems Engineer - 14725*
Roy or Manhattan Beach or Huntsville or Colorado Springs
$123k-$204k/yrOnsiteFull Time
Northrop GrummanNYSE: NOC: Designs and manufactures advanced aerospace and defense systems.
5+ YOEU.S. Citizen with active DoD Secret clearance; 5+ years systems engineering experience; MBSE, cloud/HPC, virtualized and software-centric systems experience; ability to obtain SAP approval; experience and degree options vary (8 yrs with BS, 6 with MS, 4 with PhD).
Boston or Salt Lake City or San Francisco or New York City
RemoteFull Time
Databento: Provides a pay-as-you-go financial market data platform.
5+ YOEStrong proficiency in C++ and C#, 5+ years software engineering experience preferred, experience with low-latency systems, message parsers, multithreading, and maintaining client libraries.
Peraton: National security and mission-critical government technology services provider.
BS (STEM) required; experience/coursework in object-oriented programming; technical writing; ability to identify logic errors and safety hazards in software/hardware; U.S. citizenship and ability to obtain/maintain Secret clearance.
Object-Oriented Programming languages, Integrated Development Environments, Model-Based Systems Engineering (MBSE)
New York City or San Francisco or Salt Lake City or Los Angeles or Seattle or Austin or Washington or Philadelphia or San Diego or Chicago or Atlanta or Australia or Canada or South America
$146k-$215k/yrRemoteFull Time
Flex: A financial platform allowing renters to split monthly rent payments.
6+ YOE6+ years software engineering experience, 4+ years with Java, experience with backend systems, APIs, data pipelines, AWS, and distributed teams.
San Francisco or Miami or Atlanta or Salt Lake City or Phoenix or Washington D.C. or Los Angeles or Seattle or Chicago or Boston or Austin or New York City
$153k-$205k/yrRemoteFull Time
CircleNYSE: CRCL: Digital currency issuer and blockchain financial infrastructure provider.
6+ YOE6+ years professional software development with Java and Go; bachelor’s in CS or equivalent; led small technical teams; experience with payment systems, RESTful APIs, cloud services, and SQL; strong system design, testing, and communication skills.
Java, Go, AWS, Google Cloud, Microsoft Azure, SQL, NoSQL, RESTful API
Edinburgh or New York City or Salt Lake City or London or Pune or Dubai or Geneva or Singapore or São Paulo
OnsiteFull Time
Addepar: Provides a data platform for wealth management and portfolio reporting.
Extensive software engineering experience, production system ownership, AI-native product delivery, and a computer science or quantitative degree or equivalent practical experience.
Audio Enhancement: Develops audio and video technology for K-12 educational environments.
6+ YOEBachelor's in CS or related, 6+ years software development experience with Node.js and TypeScript, strong frontend (React/Vue), cloud (AWS), SQL/NoSQL, event-driven systems, observability, and debugging skills.