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30 api test engineer jobs at 27 companies in Boulder, CO

1mo
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Test Automation Engineer
Boulder, Colorado, United States
$113k-$168k/yr OnsiteFull Time
SciTec
SciTec: Provides advanced remote sensing and missile defense technology solutions.
5+ YOEBachelor's in a technical field, 5+ years test automation/software/systems engineering, experience with Python or JavaScript, API/microservices testing, Linux, Git, CI/CD, and ability to obtain/maintain a DoD security clearance.
Python, JavaScript, Linux, Git, GitLab CI, Jenkins, Docker, Kubernetes, OpenShift
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3mo
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Software Test Engineer
Aurora or Annapolis Junction
$60-$96/hr RemoteFull Time
EverWatch
EverWatch: Develops software and intelligence systems for government agencies.
3+ YOE3+ years software engineering in Agile; testing, JS/TS/Java; Playwright/Cypress; REST APIs; CI/CD; TS/SCI with polygraph; Bachelor's degree; ISTQB desirable.
Playwright, Cypress, JavaScript, TypeScript, Java, GitHub Actions, Jenkins, GitLab CI, Bitbucket Pipelines, REST APIs, Selenium
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2mo
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Principal Integration and Test Engineer
Boulder, Colorado, United States
$160k-$180k/yr OnsiteFull Time
Auria
Auria: Engineering and software solutions for space and defense missions.
3+ YOEDesign, develop, and execute CI/CD tests; verify system functionality; collaborate in Agile team; DoD Secret clearance.
Jira, Confluence, GitLab CI/CD, Docker, APIs
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1mo
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Mid-Level Test Engineer (TS/SCI with CI Poly Required)
Aurora, Colorado, United States
$80k-$100k/yr OnsiteFull Time
DeNOVO Solutions
DeNOVO Solutions: Provides defense and intelligence technology, software engineering, and cybersecurity services.
2+ YOE2-5 years software testing, TS/SCI with CI Poly required, automated testing, REST API testing, CI/CD, strong programming in JS/TS.
Cypress, Playwright, Selenium, Jest, Mocha, Postman, REST Assured, Supertest, k6, JMeter, Gatling, Pact, Docker, Kubernetes, Go, Node.js, Python, Cucumber, SpecFlow, AWS
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3w
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Senior Software Engineer (Hogan API)
Hopkins or Atlanta or Chicago or Charlotte or Englewood or Brookfield or Irving
$120k-$141k/yr HybridFull Time
U.S. Bank
U.S. BankNYSE: USB: Provider of personal, business, and institutional financial services.
5+ YOEBachelor's degree or equivalent and 5+ years relevant experience. Experience with mainframe/Hogan development (COBOL, JCL, CICS), APIs, system design, testing, security, and cross-team collaboration; Scrum familiarity.
Hogan COBOL, JCL, CICS, JSON, Splunk, IMS Database, GitLab, IDz/RDz (IBM Developer for zOS), Jira
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1mo
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Software Developer Engineer in Test/QA Automation Engineer (Boulder, CO)
Boulder or Denver
$90k-$150k/yr HybridFull Time
PickNik Robotics
PickNik Robotics: Provides software platforms for advanced robotic arm motion planning.
Bachelor's in Robotics/Computer Science, experience with Docker, CI/CD, testing frameworks, basic C++ and Python, EM/hardware testing, and ability to travel <20%; Boulder/Denver area residency required.
MoveIt Pro, C++, ROS 2, Python, React, Docker, CI/CD, REST API
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1w
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Quality Assurance Engineer
Denver, Colorado, United States
$110k-$125k/yr RemoteFull Time
Trilon Group
Trilon Group: Providing engineering and design services for community infrastructure.
4+ YOE4+ years QA experience, strong test automation skills for API/backend/UI, proficiency in Python or JavaScript, CI/CD and REST testing, experience evaluating AI/LLM outputs and RAG pipelines, strong communication and analytical skills.
Python, JavaScript, CI/CD, API, REST, LLM, Retrieval-Augmented Generation (RAG)
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3mo
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Senior Software Developer
Louisville, Colorado, United States
$118k-$144k/yr OnsiteFull Time
CableLabs
CableLabs: Research and development for the broadband and cable industry.
5+ YOE5+ years of professional software development; proficient in Python; strong SQL and relational DB design; Git and CI/CD; REST APIs; testing with pytest; good communication.
Python, SQL, Git, pytest, REST API, JavaScript, TypeScript, Node.js, CI/CD, GitLab CI
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3w
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QA/UAT Engineer
Toronto or Vancouver or San Francisco or Denver or New York City
$100k-$150k/yr RemoteFull Time
Nylas
Nylas: Provides APIs for email and calendar integration.
3+ YOE3+ years QA/SDET experience; strong test automation, API and browser testing, Go familiarity, CI/CD and cloud-native tooling, and experience with AI-assisted testing tools.
Go (Golang), gRPC, REST, Playwright, Cypress, Selenium, Claude Code, Codex, Cursor, Postman, grpcurl, k6, Docker, Kubernetes, GitHub Actions, kubectl, GitOps, TypeScript, Python
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2d
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R&D Engineer SW Quality 3
Broomfield, Colorado, United States
$91k-$146k/yr OnsiteFull Time
Broadcom
BroadcomNASDAQ: AVGO: Designs and sells semiconductors and infrastructure software to enterprises.
8+ YOEBachelor's in engineering, 8+ years software testing experience, QA methodologies, Linux/Windows/VMware, Python scripting, SAN and networking knowledge, strong communication and analytical skills.
Python, Linux, Windows, VMware, Jira, REST API, CVSS, STRIDE
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1mo
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Full Stack Software Engineer
Aurora or Philadelphia
$82k-$172k/yr OnsiteFull Time
CACI International
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
5+ YOEBachelor's in CS or related, TS/SCI with Polygraph required, 5+ years OO experience (Python focus), 2+ years JavaScript/TypeScript, SDLC and microservices experience, API development, unit/integration testing, Agile, ability to work onsite full time.
Python, JavaScript, TypeScript, AWS, Azure, Kubernetes, React, Angular, Git, GitLab, Jira, Confluence
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2d
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Software Engineer - Dice
Denver or Des Moines or United States
$100k-$140k/yr HybridFull Time
DHI Group
DHI GroupNYSE: DHX: Operates specialized career marketplaces and talent acquisition software platforms.
Production experience with Node.js and TypeScript, RESTful APIs, NextJS/React, AWS, CI/CD and automated testing (Playwright); strong engineering judgment and collaboration skills.
Claude Code, Codex, Gemini CLI, Node.js, TypeScript, RESTful APIs, NextJS, React, AWS, CI/CD, Playwright, GraphQL, Docker, Fargate, Kubernetes
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1w
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Automation Engineer
Aurora or Herndon
$113k-$169k/yr OnsiteFull Time
Two Six Technologies
Two Six Technologies: Develops cybersecurity and data systems for national security missions.
2+ YOE2+ years software testing experience; proficiency with automated testing frameworks, integration and REST API testing, CI/CD integration, Git, strong debugging and communication skills.
Cypress, Git, JavaScript, TypeScript, Playwright, Selenium, Jest, Mocha, Postman, REST, Assured, Supertest, k6, JMeter, Gatling, Pact, Docker, Kubernetes, go, Node.js, Python, AWS, C2S
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2mo
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Salesforce Engineer
Denver, Colorado, United States
$120k-$150k/yr HybridFull Time
Litera
Litera: AI-powered document and workflow software for legal professionals.
Experienced Salesforce Engineer with enterprise development focus; strong Apex, Visualforce, LWC/Aura, and integration skills; familiar with REST/SOAP APIs, ETL tools; able to design, develop, test, and deploy Salesforce solutions.
Salesforce, Apex, Visualforce, Lightning Web Components, Aura Components, REST APIs, SOAP APIs, ETL tools, Process Builder, Flow, Workflow Rules, CI/CD, Cursor, Copilot
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2mo
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Software Engineer Lead
Denver or United States
$100k-$135k/yr RemoteFull Time
Resource Innovations
Resource Innovations: Provides clean energy services and software solutions for utilities.
6+ YOEHands-on PHP 8.x with Laravel, Vue.js, REST APIs, TS; 6+ years PHP; 4+ years Vue; Git; Agile; SaaS; AWS/serverless; tests Pest/PHPUnit preferred.
PHP, Laravel, Vue.js, Tailwind CSS, REST API, Git, Pest, PHPUnit, NPM, Vite
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1mo
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SDET/Automation QA Engineer
Columbus or Austin or Denver or United States
$125k-$145k/yr HybridFull Time
Lower
Lower: Provides digital mortgage lending and homeownership financial services.
3+ YOE3+ years QA/SDET experience; build Playwright e2e and Postman API tests; write API tests in TypeScript; integrate tests into CI/CD; agile experience and strong communication skills.
Playwright, Postman, TypeScript, Slack
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1mo
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Software Engineer III
Denver, Colorado, United States
$99k-$198k/yr OnsiteFull Time
Walmart
WalmartNYSE: WMT: Multinational retail operating discount stores and supermarkets.
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
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3w
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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
Medtronic
MedtronicNYSE: MDT: Developing and manufacturing medical technologies and therapies globally.
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
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3d
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Software Engineer II (Mobile Engineer)
Centennial, Colorado, United States
$115k-$125k/yr HybridFull Time
Alarm.com
Alarm.comNasdaq: ALRM: Provides cloud-based smart home security and automation solutions.
2+ YOEBachelor's in CS or related field, 2+ years React Native mobile experience, proficiency with mobile testing/debugging, RESTful APIs/JSON, Git, strong communication and self-learning skills.
React Native, RESTful APIs, JSON, Git, Keycloak, OAuth 2.0, OpenID Connect, CI/CD
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2w
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Frontend Engineer
Toulouse or San Francisco or Golden
OnsiteFull Time
Loft Orbital
Loft Orbital: Deploy and operate satellite missions for organizations and governments.
Proficiency in TypeScript, HTML, CSS, experience with Vue.js or React, SPA development, GraphQL APIs, and unit/integration testing (e.g., Vitest, Jest, Cypress). Web Components and geospatial libraries are a plus.
Vue.js, TypeScript, HTML, CSS, GraphQL, Vitest, Jest, Cypress, Web Components (Lit), Leaflet, Mapbox, CesiumJS
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