40 software developer i jobs at 25 companies in Louisville, CO

1mo
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Software Engineer I
Seattle or Denver or Beaverton or Springfield or Bengaluru
$122k-$157k/yr HybridFull Time
DAT Freight & Analytics
DAT Freight & Analytics: Software platform for freight matching and logistics data analytics.
1+ YOE1+ years professional software engineering experience. Familiarity with TypeScript/Node.js/JavaScript, SQL, production systems, CI/CD, containerization, and willingness to participate in on-call rotation.
Node.js, TypeScript, React, Kafka, RabbitMQ, SQS, Docker, Kubernetes, Terraform, CloudFormation, AWS, Datadog, OpenSearch/ELK, Prometheus, Grafana, CI/CD, SQL, Java, C#, Go, REST, GraphQL
10h
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Flight Software Engineer I
Littleton, Colorado, United States
$85k-$100k/yr OnsiteFull Time
Rocket Lab
Rocket LabNASDAQ: RKLB: Designs and builds launch vehicles and satellite systems.
Bachelor's degree in a technical field, embedded software development experience, C and C++ proficiency, RTOS or Embedded Linux experience, and U.S. citizenship required.
Real Time Operating System (RTOS), Embedded Linux, C, C++, Continuous Integration, CAN, CAN-FD, UDP, TCP
3mo
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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
10h
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Flight Software Engineer I
Littleton, Colorado, United States
$85k-$100k/yr OnsiteFull Time
Rocket Lab
Rocket LabNasdaq: RKLB: Operates launch vehicles and manufactures satellites for space missions.
Bachelor's degree in aerospace, computer science, electrical engineering, or equivalent; embedded software experience; C and C++; RTOS or Embedded Linux experience; U.S. citizenship required.
Real Time Operating System (RTOS), Embedded Linux, C, C++, Continuous Integration, CAN, CAN-FD, UDP, TCP, PDR, CDR
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
12h
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Software Engineer I - Lab - 934
Broomfield, Colorado, United States
$88k-$110k/yr OnsiteFull Time
Quantinuum
Quantinuum: Building full-stack quantum computing hardware and software systems.
2+ YOEBachelor’s degree and 2+ years in a relevant technical field required. Must meet U.S. person and national security requirements. Hardware integration and embedded software experience valued.
Docker, Jenkins, CI/CD, LLVM
2mo
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Software Engineer I, QA
Denver or Long Beach
$65k-$110k/yr OnsiteFull Time
True Anomaly
True Anomaly: Develops autonomous spacecraft and software for space security missions.
0+ YOE0-2 years in software QA/testing; BS in CS or related field; knowledge of SDLC, Agile; familiarity with Jira and Git; strong attention to detail and communication; US citizen eligible for DoD Secret or TS/SCI clearance
Playwright, Cypress, Selenium, API testing tools, Git, Jira, GitHub Actions, Jenkins
1mo
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Software Engineer I - Trust Tech
Copenhagen or Edinburgh or London or Amsterdam or Denver or Hamburg or Melbourne or Milan or New York
OnsiteFull Time
Trustpilot
TrustpilotLondon Stock Exchange: TRST: Operates an online consumer review and business insights platform.
Experience in full‑stack web development with emphasis on backend systems; strong JavaScript/TypeScript and Node.js skills; knowledge of SQL/NoSQL databases, React, and AWS or GCP.
TypeScript, JavaScript, React, Node.js, PostgreSQL, DynamoDB, BigQuery, AWS, GCP, ECS, Lambda, SNS, SQS, CloudFormation, Docker, Terraform, Serverless Framework, Next.js, CSS Modules, GitHub Actions
4w
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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
2d
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2026 Intern Conversion - Software Development Engineer I
Seattle or Van Horn or Denver or Huntsville or Arlington or Los Angeles or Longmont or Reston or Florida
$101k-$155k/yr OnsiteFull Time
Blue Origin: Develops reusable rockets and systems for human spaceflight.
Completed a 2026 Blue Origin internship, enrolled in or recently graduating from college, B.S. in mechanical, aerospace, or astronautical engineering, and eligible to work under U.S. export controls.
2d
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CIRES / NOAA NCEI Software Engineer Associate Scientist I
Boulder, Colorado, United States
$62k-$78k/yr HybridFull Time
University of Colorado Boulder
University of Colorado Boulder: Public research university offering undergraduate and graduate education programs.
Bachelor's degree in computer science, engineering, mathematics, physical sciences, or STEM field; programming proficiency and ability to independently write and maintain code. U.S. work authorization required.
Java, JavaScript, Bash, Linux, AWS, Crosschq
2mo
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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
1w
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Engineer I - Software
Boulder or Broomfield or Westminster
$65k-$110k/yr OnsiteFull Time
BAE Systems
BAE SystemsLondon Stock Exchange: BA: Provides advanced defense, aerospace, and security technology solutions.
BS in engineering or related required; experience with satellite ground systems, ground-system tools, cloud, web services, and back-end/front-end languages; eligible for Top Secret/SCI clearance.
COSMOS, ECLIPSE, OS/COMET, OASIS, AWS, Lambda, Docker, Kubernetes, Spring, Jersey, Flask, CherryPy, Ruby on Rails, JavaScript, Angular, React, JavaFX, Python, Qt, SQL, NoSQL, JPA/ORM, Java, C++, Rust, Ada
2mo
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Lead Engineer I, Development
Denver or Atlanta
HybridFull Time
KPMG
KPMG: Global professional services network providing audit, tax, and advisory.
5+ YOEMinimum five years software development experience; bachelor’s degree required (master’s preferred). Experience with microservices, REST APIs, Python/.NET/C#/Angular/TypeScript, SQL and Azure; ML framework experience preferred.
Angular, TypeScript, Python, .NET, C#, SQL, T-SQL, Azure, App Services, Functions, SQL Database, DevOps, Azure OpenAI, PyTorch, TensorFlow, scikit-learn
2mo
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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
2w
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Project Engineer I- Software
Westminster, Colorado, United States
$118k-$201k/yr OnsiteFull Time
BAE Systems
BAE SystemsLondon Stock Exchange: BA: Provides advanced defense, aerospace, and security technology solutions.
6+ YOEBS in Engineering plus 6+ years related experience, current Secret clearance with ability to obtain TS/SCI, experience leading software teams, agile leadership, Atlassian (Confluence,Jira).
Confluence, Jira, Jama, DOORS
2w
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UICC Engineer I
Littleton, Colorado, United States
$72k-$103k/yr OnsiteFull Time
EchoStar
EchoStarNasdaq: SATS: Global provider of satellite solutions and wireless communications services.
1+ YOEBachelor's or equivalent,1+ year eUICC/SIM/eSIM experience,COMPRION/APDU/SIM test tools experience,Python scripting,SIM-OTA and Remote SIM Provisioning knowledge.
COMPRION, Python, APDU logging, SIM test tools
3mo
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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
1mo
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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
1w
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Civil Engineer I
Lakewood, Colorado, United States
$65k-$80k/yr HybridFull Time
Bowman
BowmanNASDAQ: BWMN: Provides engineering, surveying, and infrastructure management services.
Bachelor's in civil engineering required. Entry-level role; EIT preferred. Experience with land/site development, drainage and modeling tools preferred; proficiency with civil design software and Microsoft Office required.
Civil3D, AutoCAD, AES, CIVILD, WSPGW, PCSWMM, StormCAD, HEC-HMS, HEC-RAS, Microsoft Word, Microsoft Excel, Microsoft PowerPoint, Microsoft Outlook, Microsoft Projects

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