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31 software engineer i jobs at 22 companies in Boulder, CO

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Founding Full-stack / Product Engineer
Cupertino, CA, US
$130k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Help us build a 100× better job search engine. We need a full-stack engineer with great taste, sharp fundamentals, and a track record of shipping polished product on React/Next.js plus a real backend (Firebase, Elasticsearch, Redis, Stripe).
React, Next.js, TypeScript, Firebase, Elasticsearch, Redis, Stripe
Help us #BeatIndeed & #BeatLinkedIn
1mo
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Software Engineer I
Denver, Colorado, United States
$117k-$135k/yr HybridFull Time
DAT Freight & Analytics
DAT Freight & Analytics: Software platform for freight matching and logistics data analytics.
Bachelor’s degree in CS or related field or equivalent experience; Proficiency in PHP or TypeScript; growth mindset; strong problem-solving; interest in AI tooling; good collaboration.
PHP, TypeScript, Laravel, GitHub Copilot, Claude Code
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3w
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Senior Network Software Engineer I/II
Littleton, Colorado, United States
$115k-$155k/yr OnsiteFull Time
Rocket Lab
Rocket LabNasdaq: RKLB: Operates launch vehicles and manufactures satellites for space missions.
5+ YOEBachelor's in a technical field, active Secret clearance, U.S. citizenship eligibility, 5+ years (I) or 8+ years (II) relevant experience, network software and SDLC knowledge, Jira experience, systems engineering skills.
Jira, Microsoft Project, Smartsheet, Docker, Kubernetes
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2mo
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Senior Software Engineer I
Denver or New York City or San Francisco
$189k-$200k/yr HybridFull Time
Forge Global
Forge GlobalNYSE: FRGE: Marketplace for trading private shares and pre-IPO stock.
5+ YOE3–5+ years in OO languages (TypeScript, C#, Java); Python for data tasks; React/Tailwind; data architectures; private markets data; CI/CD, data orchestration; cloud (AWS/Azure/GCP); Git/GitHub; Agile tools (JIRA).
TypeScript, C#, Java, Python, React, TailwindCSS, Medallion, Data lakes, CI/CD, PostgreSQL, SQL, AWS, Azure, GCP, Git, GitHub, JIRA
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1mo
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Software Engineer I - Ground Software
Greenwood Village or Austin or Laurel
$70k-$125k/yr HybridFull Time
York Space Systems
York Space SystemsNYSE: YSS: Designs and manufactures modular spacecraft platforms and mission solutions.
0+ YOEEarly‑career full‑stack engineer; 0–1 years experience; bachelor's (or pursuing) in CS or related; foundational React/Angular knowledge; familiarity with TypeScript, C#, REST, Git, SQL, front-end tools; ability to obtain security clearance.
React, TypeScript, C#, .NET, Docker, Kafka, REST, Yarn, Babel, Material-UI, Git, SQL, TanStack Query
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1mo
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Software Engineer I
Vancouver or Denver
$71k-$88k/yr OnsiteFull Time
Ping Identity
Ping Identity: Provides identity and access management software for enterprise security.
Strong Java skills, knowledge of HTTP and TLS, familiarity with IDEs, git, Jenkins, Maven and ClaudeCode; experience with testing, Spring, React/Redux, databases, Docker/Kubernetes; strong communication and problem-solving.
Java, HTTP, TLS, IDEs, git, Jenkins, Maven, ClaudeCode, React, Redux, JavaScript, Spring, Jackson, JDBC, SQL, Hibernate, Netty, Docker, Kubernetes, Helm
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2mo
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Software Engineer I
East Lansing or Denver or Canada or India
$63k/yr HybridFull Time
Vertafore
VertaforeNYSE: ROP: Provides cloud-based software solutions for the insurance industry.
No experience required. Proficiency in coding languages/frameworks, SDLC, Agile/Scrum; knowledge of relational and NoSQL databases helpful; strong communication, analytical skills, and ability to learn quickly.
Agile, Scrum, NoSQL, Relational databases, AI
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1mo
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Software Engineer III, Flight Software (Clearance Required)
Centennial or Louisville
$130k-$178k/yr OnsiteFull Time
Sierra Space
Sierra Space: Develops spacecraft and infrastructure for orbital and space transportation
5+ YOEBachelor's or equivalent, typically 5+ years experience, expertise in programming languages and software architecture, Agile experience, Secret U.S. security clearance required; C++, socket I/O, pub/sub, Git/SVN, and Linux experience preferred.
C++, socket I/O, TCP, UDP, PUB/SUB, CCSDS, C2MS, Open Mission Systems (OMS), Universal C2 Interface (UCI), Git, SVN, Linux, SysML, UML, netconf, SITL, HITL
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2mo
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Clinical Engineer I (10248)
Englewood, Colorado, United States
$60k-$80k/yr HybridFull Time
Zimmer Biomet
Zimmer BiometNYSE: ZBH: Manufactures orthopedic implants and robotic surgical systems.
1+ YOEBachelor’s degree in Mechanical or Biomedical Engineering; 1-3 years clinical or medical device design experience; proficiency in 3D design software; strong communication and teamwork skills.
SolidWorks CAD, Materialise 3-matic, Materialise Mimics, DICOM imaging
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2mo
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Electronics Engineer I - SATCOM
Westminster, Colorado, United States
$82k-$98k/yr OnsiteFull Time
CesiumAstro
CesiumAstro: Develops phased array communication systems for satellites and aircraft.
BS in Electrical Engineering; experience in board-level electronics design, analysis, and test; strong EE fundamentals; knowledge of software and mechanical interfaces; proficiency with lab equipment; excellent communication.
Altium, Cadence, KiCAD, LTSpice, Oscilloscopes, Power supplies, Multimeters, Logic analyzers
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3mo
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Senior Software / Applications Developer
Denver or Lakewood
$106k-$130k/yr RemoteFull Time
Cape Fox Federal Integrators
Cape Fox Federal Integrators: Provides government agencies with professional, technical, and training services.
5+ YOESenior-level software development for federal systems; PHP, ColdFusion, Java, SQL; API integrations; Agile DevSecOps; cloud migration; DO I security.
PHP, ColdFusion, Java, SQL, MuleSoft, Oracle, RHEL, AWS GovCloud, Git
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5d
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Software Engineer I, Model and Simulation
Broomfield, Colorado, United States
$90k-$125k/yr OnsiteFull Time
Katalyst Space Technologies
Katalyst Space Technologies: Develops robotic spacecraft for in-orbit satellite servicing and maneuvering.
1+ YOE1-3 years modeling & simulation experience, 2-3 years C++ and Python, BS in a STEM field, strong OOP and distributed systems understanding, problem-solving and attention to detail.
C++, Python, Basalisk, STK, GMAT
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1mo
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Senior Systems Software Engineer - Data Path
Centennial or Mendota Heights
$160k-$200k/yr HybridFull Time
Quantum
QuantumNASDAQ: QMCO: Provides data storage and management solutions for unstructured data.
15+ YOE15+ years C/C++ systems development experience; expertise in low-latency code, concurrency, distributed systems, storage protocols, Linux I/O and performance optimization; strong communication and teamwork; able to work hybrid in Centennial, CO or Mendota Heights, MN.
C, C++, NVMe-over-Fabrics (NVMe-oF), RDMA, Linux I/O subsystem, Linux, Kubernetes, Git, Jira, SMB, NFS
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1w
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Electrical Engineer I
Lakewood, Colorado, United States
$70k-$85k/yr OnsiteFull Time
NEI Electric Power Engineering
NEI Electric Power Engineering: Engineers high-voltage electrical infrastructure and renewable energy systems.
0+ YOEBSEE or BSEET, EIT/FE preferred, 0+ years engineering experience, AutoCAD and Microsoft Office proficiency, knowledge of power system software (Aspen, PSSE, ETAP, SKM), ability to travel ~25-30%.
AutoCAD, Microsoft Excel, Microsoft Word, Aspen, PSSE, ETAP, SKM, SCADA, PLC
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1mo
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Software Engineering Manager I
Denver, Colorado, United States
$120k-$160k/yr HybridFull Time
bet365
bet365: Provides global online sports betting and digital casino games.
Proven experience leading development teams; hands-on with C#, Golang, TypeScript; familiarity with cloud (GCP/GKE), Google Spanner, Kafka, microservices, performance testing, mobile tech, and mentoring engineers.
Golang, Google Spanner, C#, SQL, GCP, Kafka, WPF, React, TypeScript, GKE, SaaS
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1mo
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Platform Engineer, AI (Levels I, II, III)
Denver or Long Beach
$120k-$235k/yr HybridFull Time
True Anomaly
True Anomaly: Develops autonomous spacecraft and software for space security missions.
Software engineering experience (Python/TypeScript), familiarity with LLM APIs, REST/webhook integrations, ability to obtain Top-Secret clearance and U.S. work-authorization, strong communication and collaboration skills.
Python, TypeScript, REST APIs, webhooks, MCP, CrewAI, Pydantic AI, LangChain, AWS, Azure, GCP, Slack, Jira, Confluence, CI/CD
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1mo
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Senior Electrical Engineer – PE Preferred
Cincinnati or Fort Collins or Omaha or Sioux Center or Sioux Falls or United States
$79k-$116k/yr OnsiteFull Time
Interstates
Interstates: Provides industrial electrical construction and automation engineering services.
4+ YOEABET-accredited B.S. in engineering, FE/EIT or eligible, PE required or eligible, 4+ years (Project Engineer I) to 7+ years (Project Engineer II) experience, strong NEC knowledge, drafting software proficiency preferred.
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2mo
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UX/UI Project Engineer I
Lone Tree or Englewood
$143k-$197k/yr OnsiteFull Time
Sierra Nevada Corporation
Sierra Nevada Corporation: Develops mission-critical aerospace and national security technology systems.
9+ YOEBachelor's in a technical field; 9+ years engineering experience with 2+ years in a lead role; strong UX/UI development and training/Support management experience; Top Secret security clearance required with SCI eligibility.
ServiceNow, MS Project, Jira, front-end technologies (React, Angular, Vue.js)
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2mo
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Embedded Firmware Engineer
Carson City or Webster or Harbor City or Platform or Jessup or Clinton or Newark or Longmont
$79k-$150k/yr OnsiteFull Time
Vitesse Systems
Vitesse Systems: Designs and manufactures antenna and thermal systems for defense.
2+ YOEBS or MS in Electrical Engineering or related robotics field; 2+ years Level I, 5+ Level II, 8+ Level III firmware/embedded software; C++, Python; RTOS; hardware bring-up; ITAR compliance.
C++, Python, C, VHDL, Verilog, Linux, RTOS, ROS, Git, EtherCAT, SPI, CAN, I2C, UART, RS-232
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1mo
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Service Delivery Engineer I
Greenwood Village or Denver or Colorado Springs or United States
$20-$25/hr HybridFull Time
K3 Technology
K3 Technology: Managed IT services, cybersecurity, and AI solutions for businesses.
Provide technical support and troubleshooting for clients (LAN/WAN, hardware, software, Office 365), maintain documentation, perform onsite visits across Denver/COS metro, and deliver high-quality customer service.
Microsoft Windows, Microsoft Windows Server, macOS, Addigy, NinjaRMM, ConnectWise Control, Meraki, SonicWall, Microsoft Azure, Microsoft 365, Microsoft Intune, Microsoft Autopilot, KnowBe4, Proofpoint Essentials, Mimecast, SentinelOne EDR, Monday, Huntress, HaloPSA, Microsoft Office, Ubiquiti, VMware, Veeam, PowerShell, Synology
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1w
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AS/400 Senior Developer
Chicago or Dallas or Houston or Atlanta or Washington or Boston or Denver or San Antonio or Miami or Tampa or Columbus or St. Louis or Kansas City
$120k-$150k/yr RemoteFull Time
Hub International
Hub International: Provides global insurance brokerage and risk management services.
5+ YOE5+ years experience with AS/400 (IBM i) and RPGLE, SQL, Microsoft Access, OpenEdge Progress, Visual Basic, Linux; bachelor's in CS/IT or equivalent; strong communication and problem-solving skills.
AS/400 (IBM i), RPGLE, VS Code, Code for IBM i, Git, GitHub, Microsoft Access, OpenEdge Progress, Visual Basic, Linux, SQL
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