249 software testing engineer jobs at 122 companies in Louisville, CO
1mo
Save
Mark Applied
Hide
Software Systems Testing Engineer
Littleton, Colorado, United States
$77k-$135k/yr OnsiteFull Time
Experience in software testing/integration or software development; proficiency with Python or C++; creating test plans, test cases, and V&V matrices; Agile experience; eligible for government security clearance and U.S. citizenship required.
Python, C++, Hardware-in-the-Loop (HIL), National Instruments, Speedgoat, MATLAB, Simulink, STK, oscilloscope, digital multimeter, logic analyzer, protocol analyzer, CI/CD, Agile Scrum
1mo
Save
Mark Applied
Hide
Software Engineer
United States or Boston or New York City or Denver
$110k-$125k/yr RemoteFull Time
2+ YOE2+ years professional software engineering experience; full‑stack web development using TypeScript, React, Express, and MongoDB; strong testing, collaboration, and productive use of AI coding tools.
TypeScript, React, Express, MongoDB
1mo
Save
Mark Applied
Hide
Principal Software Engineer
Warsaw or Fridley or Mounds View or Brooklyn Park or Fort Worth or North Haven or Jacksonville or Boston or Lafayette
$153k-$229k/yr OnsiteFull Time
5+ YOEBachelor's + 7+ years software engineering or advanced degree + 5+ years; experience designing, developing, testing and deploying scalable, reliable software for manufacturing; leadership, mentoring, and cross-functional collaboration.
Ignition, deviseWISE, Azure, AWS, Docker, Kubernetes, Jenkins, Terraform, React, Angular, Node.js, ASP.NET, HTML5, CSS3, WebAPI, Microservices Architecture, Test-Driven Development, Agile & Scrum, CI/CD Pipelines, RESTful API Design, Java, C++, NET, Scala, Lua, Python, SQL
1mo
Save
Mark Applied
Hide
Senior Software Engineer
Denver, Colorado, United States
$120k-$150k/yr HybridFull Time
Proven professional software development experience with Clojure, solid SQL/PostgreSQL skills, RESTful API design, SaaS architecture knowledge, testing and engineering best practices, and strong collaboration and communication.
Clojure, ClojureScript, SQL, PostgreSQL, RESTful APIs, AWS, Docker, RabbitMQ, ElasticSearch
3mo
Save
Mark Applied
Hide
Engineer Principal - Software - Payload Test
Broomfield, Colorado, United States
$118k-$201k/yr HybridFull Time
6+ YOEBachelor's in engineering or related plus 6+ years experience, active TS/SCI clearance, strong software engineering skills (Windows, OOP), coding and test experience; Ruby, Python, RDBMS, LabVIEW desirable; agile, CI, unit testing, MS Office proficiency.
Ruby, Python, RDBMS, LabVIEW, Microsoft Office, Windows
3w
Save
Mark Applied
Hide
Software Engineer II
Denver, Colorado, United States
$70k-$109k/yr OnsiteFull Time
2+ YOEBS in computer or electrical engineering,2+ years Java/C/C++ software development in embedded or regulated environments,component ownership,unit/integration test and verification,secure coding,strong communication.
Java, C, C++, SQL, Python, MATLAB, Ruby, R
1w
Save
Mark Applied
Hide
Senior Software Engineer
Chicago or Peoria or Irving or Dallas or Denver
$113k-$183k/yr OnsiteFull Time
Proven Java/Spring Boot software engineering experience, cloud deployment (AWS/Azure), SQL/ORM, CI/CD and automated testing, microservices, containerization, and mentoring experience; bachelor's degree preferred.
Java, Spring Boot, Hibernate, JPA, Spring Data, SQL, Snowflake, Playwright, Docker, Kubernetes, React, Angular, AWS, Azure
1mo
Save
Mark Applied
Hide
Software Engineer
Denver, Colorado, United States
$90k-$190k/yr OnsiteFull Time
5+ YOEActive TS/SCI clearance, 5 years related experience, strong Python proficiency, experience in test automation and integrating external hardware, familiarity with software development best practices and CI/CD.
Python, pytest, unittest, Robot Framework, Java, C#, TypeScript, C++, CI/CD
1mo
Save
Mark Applied
Hide
Software Engineer
Denver or Westminster
$90k-$190k/yr OnsiteFull Time
5+ YOE5+ years related experience, active TS/SCI clearance, strong Python proficiency, experience with test automation and hardware integration, software development best practices, and ability to work independently and with cross-functional teams.
Python, Java, C#, TypeScript, C++, pytest, unittest, Robot Framework, CI/CD, USB, Serial, Ethernet, oscilloscope, DAQ
3w
Save
Mark Applied
Hide
Software Engineer
Chesterfield or Greenwood Village
$85k-$140k/yr HybridFull Time
2+ YOEBachelor's in CS or related, 2+ years software development experience, experience with C#/.NET, SQL Server, web fundamentals, Git, testing, and strong communication and problem-solving skills.
C#, .NET, SQL Server, HTML, CSS, JavaScript, Git, TypeScript, Angular, React, REST APIs, Azure DevOps, Azure, AWS, Application Insights, DataDog
1mo
Save
Mark Applied
Hide
Senior Software Engineer
Boulder or Austin
$140k-$185k/yr HybridFull Time
Atom Computing: Building scalable quantum computers using arrays of neutral atoms.
5+ YOEBachelor's degree in CS/CE or related, 5+ years software engineering experience, proficiency with Python and SQL, Linux and Git experience, familiarity with automated testing and CI/CD practices, willingness to learn atomic/quantum concepts.
Python, Rust, TypeScript, React, SQL, Linux, Git, Terraform, Azure, AWS, GCP, C++
3w
Save
Mark Applied
Hide
Software Quality Engineer (SQE)
Lakewood, Colorado, United States
$127k-$159k/yr HybridFull Time
8+ YOE8+ years in software quality engineering, bachelor’s in CS/Engineering preferred, experience in regulated environments, expertise in test case design, risk-based testing, traceability, and collaboration with SDETs.
2w
Save
Mark Applied
Hide
Embedded Software Engineer
Northglenn, Colorado, United States
$115k-$165k/yr HybridFull Time
4+ YOEEngineering/CS degree, 4+ years software/embedded experience, embedded Linux expertise, version control and testing practices, security-clearance eligibility required.
Linux, PX4, Ardupilot, ROS, ROS2
1mo
Save
Mark Applied
Hide
Software Engineer III
Denver, Colorado, United States
$99k-$198k/yr OnsiteFull Time
2+ YOEBachelor's in CS or related +2 years experience or 4 years' software engineering experience; proficiency in C/C++, Python, Go, JavaScript; cloud (AWS, GCP); CI/CD, debugging, API design, unit testing, and mentorship experience.
C/C++, Go, Python, JavaScript, AWS, GCP, CI/CD, WCAG 2.2 AA
2mo
Save
Mark Applied
Hide
Intermediate Quality Software Engineer
Cedar Rapids or Denver or Philadelphia
$73k-$97k/yr HybridFull Time
3+ YOEBachelor’s degree in Computer Science or related field; 3 years in distributed applications, databases, and microservices; 3 years in software quality engineering with automated/manual testing.
Selenium, Cypress, Playwright, Postman, REST-assured, NUnit, JUnit, Cucumber, SpecFlow, Meter, Dynatrace, AppDynamics, Splunk, Git, Jenkins, Azure DevOps, Docker, Kubernetes, OpenShift, AWS, Azure, Cosmos DB, Event Hubs, Data Factory, SQL Data Warehouse, ARM Templates, Angular, React, Vue.js, ASP.NET, HTML, JavaScript, CSS
2w
Save
Mark Applied
Hide
Principal Software Engineer, Developer Platforms
Boulder, Colorado, United States
$220k-$297k/yr RemoteFull Time
8+ YOE8+ years software engineering experience, 3+ years in developer platforms/CI/CD or related, experience with automated testing, release pipelines, distributed systems, and a bachelor’s degree or equivalent.
2mo
Save
Mark Applied
Hide
Junior Software Engineer
Denver, Colorado, United States
$85k-$115k/yr OnsiteFull Time
0+ YOEBachelor's in CS/related field; 0-3 years software development; familiar with C++, Linux, Git, and testing.
C++, Linux, Git, CMake, REST APIs, Build Systems
2w
Save
Mark Applied
Hide
Senior Software Test Engineer
Denver, Colorado, United States
$130k-$155k/yr HybridFull Time
8+ YOE8+ years software engineering with 3+ years in software test development; professional Python and C/C++ experience; Git, Docker, cloud services, CI/CD, bash, Linux; strong communication and critical thinking; STEM degree.
Python, C, C++, Git, Docker, cloud services, CI/CD, bash, Linux
1mo
Save
Mark Applied
Hide
AI Software Developer
Grand Rapids or Denver or Chicago or Massachusetts or New Hampshire or New York or North Carolina or Oregon or Texas or Utah or Vermont or Virginia or United States or Canada
$120k-$160k/yr RemoteFull Time
3+ YOE3+ years professional software development; experience with Claude Code and Anthropic API; strong TypeScript and React; knowledge of prompt engineering, REST APIs, async patterns; ability to review AI-generated code and write tests.
Claude Code, Anthropic API, TypeScript, React, REST APIs
1w
Save
Mark Applied
Hide
Flight Software Engineer
Littleton, Colorado, United States
$120k-$128k/yr HybridFull Time
5+ YOEUS citizen, Bachelor's in computer science/aerospace/engineering, 5+ years software verification experience, Python, Linux, Matlab, DOORS, attention to detail, leadership, ability to develop and run verification tests.
Python, Linux, Matlab, C++, Doors, SWTE