34 full stack api developer jobs at 27 companies in Lakewood, CO
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Full-Stack Developer
Broomfield, Colorado, United States
HybridFull Time
Sonepar: Global distributor of electrical products and B2B solutions.
4+ YOEBachelor's in Computer Science or related, 4+ years full-stack development, proficiency with .NET, C#, ASP.NET MVC, REST/APIs, JavaScript/TypeScript, and Microsoft SQL Server.
.NET, .NET Framework, ASP.NET, MVC, C#, Microsoft Visual Studio, Microsoft SQL Server, XML, JSON, TypeScript, JavaScript, jQuery, HTML, CSS, REST, Web API
Oakland or Seattle or WA or OH or CA or Long Beach or AZ or CO or CT or FL or GA or MD or MN or NV or OR or El Dorado Hills or Lodi or Rancho Cordova or Redding or San Diego or Woodland Hills or AL or IL or VA or WI or TX or NY
$103k-$174k/yrHybridFull Time
Ascendiun: Nonprofit parent overseeing health insurance and clinical service organizations.
5+ YOE5+ years full stack development; BA/BS or equivalent IT experience; React/Vue/Angular; .NET/Java/Node.js/Python APIs; SQL/NoSQL; Azure preferred; Docker; IaC; CI/CD; AI tools; healthcare experience preferred.
Rincon Research Corporation: Designs high-performance digital signal processing solutions for defense missions
8+ YOEDegree in Computer Engineering or Computer Science; 8+ years full-stack experience; proficiency in C++, Python on Linux, JavaScript/CSS/HTML, RESTful APIs, SQL and relational data modeling; experience with DevOps/Cloud (GitLab, CI/CD, Docker, Kubernetes, pip); ability to obtain/hold TS/SCI and U.S. citizenship required.
Gen II Fund Services: Provides fund administration services for private capital managers.
3+ YOE3+ years full-stack development with Java, Spring, TypeScript/React; SQL Server; CI/CD; Azure DevOps; microservices; REST APIs; Git; Docker/Kubernetes; AI tool experience.
Java, Spring Framework, Spring Boot, Spring Security, Spring Data, TypeScript, React, SQL Server, Azure DevOps, Docker, Kubernetes, Git, JUnit, Mockito, Jest, Playwright, Claude Code, Cursor
Vail ResortsNYSE: MTN: Operates mountain resorts and provides hospitality and leisure services.
5+ YOE5+ years C# application development, Web API and Agile experience; SQL Server, HTML/CSS/JavaScript; experience leading developers, BS/MS in CS or related field; strong communication and leadership.
C#, .NET, Web API, Angular, WPF, Microsoft SQL Server, HTML, CSS, JavaScript, Git
DomainTools: Provides DNS-based threat intelligence and domain investigation solutions.
3+ YOEMinimum 3 years modern web development; strong PHP (Laravel/Symfony) and OOP PHP7+; JavaScript (ES7+), TypeScript, React18+, Redux; unit/integration testing (PHPUnit, Jest); API development; Git and Docker experience.
Yield Solutions Group: Provides auto loan refinancing and mortgage solutions for consumers.
7+ YOE7+ years software development with production Java Spring Boot and React; expert TypeScript; microservices, REST API and database design (Postgres/MariaDB); AWS and Terraform architecture; Datadog observability; CI/CD and testing ownership; AI-assisted development experience preferred.
Staff Full Stack Engineer - Partnerships Engineering
New York City or Denver or Leeds or Dublin
$144k-$237k/yrRemoteFull Time
Fanatics: Global digital sports platform for merchandise, collectibles, and betting.
8+ YOE8+ years software engineering experience with 2+ years in a staff-level technical leadership role. Strong full-stack background, experience building integration platforms and partner APIs, OAuth 2.0/OpenID Connect/SAML, distributed systems, multi-tenant environments, and strong communication.
Doowii: AI-powered data analytics platform for educational institutions.
3+ YOEBachelor's degree or equivalent, 3+ years software engineering experience, strong Python, SQL, cloud (AWS/GCP/Azure), LLM APIs and retrieval/vector search experience, API and backend design, and AI system evaluation skills.
Pittsburgh or Denver or Strongsville or Birmingham or Farmers Branch
$75k-$138k/yrOnsiteFull Time
PNC Financial ServicesNYSE: PNC: Provides banking, lending, and investment services to customers.
2+ YOE2+ years experience building full-stack applications using Java and Angular, REST APIs, microservices, Git, cloud platforms, containerization, CI/CD, and strong problem-solving skills.
Watershed: Software platform for corporate carbon accounting and climate reporting.
8+ YOE8+ years of software engineering experience; Node.js web development or data pipelines; experience building scalable software from user needs; willingness to work in an office four days a week.
Amatriot Group: Provides IT consulting and mission-critical technology support services.
Experience with full-stack development, microservices, cloud, containers, Kubernetes, REST APIs, modern web frameworks, CI/CD tools, and TS/SCI clearance with CI polygraph.
Booz Allen HamiltonNYSE: BAH: Consulting and technology services for government and commercial clients
3+ YOE3+ years designing and developing software; proficiency with Python or Java; experience building RESTful APIs, cloud environments (AWS/Azure/GCP), and full-stack development; TS/SCI clearance with polygraph; Bachelor's in STEM required.
Litera: AI-powered document and workflow software for legal professionals.
3+ YOE3+ years professional software engineering experience; bachelor's degree in CS/Software Engineering or equivalent; experience with full‑stack web apps, APIs, source control, Agile, and AI-assisted development.
Azure, AWS, Google Cloud, CI/CD, containerization, AI-powered development tools, GenAI, Agile
Axos FinancialNYSE: AX: Provides digital-first banking and diverse financial services to customers.
5+ YOE1+ MgmtBachelor's in CS or related,5+ years full-stack .NET development,1+ year leading technical resources,experience with Angular/React,REST/SOAP,APIs,Agile,strong OOP and communication skills.
Recurly: Automates subscription billing and management for recurring revenue businesses.
10+ YOE10+ years full‑stack software engineering experience; deep Ruby on Rails and Vue.js expertise; API and MySQL proficiency; proven technical leadership and mentoring; experience with AI-assisted development tools.
Ruby on Rails, ActiveRecord, Vue.js, MySQL, GitHub Copilot, Cursor, Claude Code, Go (Golang), Node.js, Anthropic, OpenAI, AWS, OpenSearch, Redis, Kafka, Docker, CI/CD
Orlando or Tampa or Lakeland or Melbourne or Daytona Beach or Las Vegas or Denver or Houston
$70-$75/hrRemoteFull Time, Contract
CAI: Provides global IT services and contingent workforce management solutions.
7+ YOE2+ Mgmt7+ years full‑stack development, 2+ years lead experience; hands‑on with Oracle/PL‑SQL, APIs/integrations, Microsoft Azure (.NET), Angular, Python; DevOps/CI/CD; experience with AI tools; strong client communication; must have work authorization not requiring sponsorship.
Denver or Nashua or Augusta or Pinellas Park or Madison Heights
$125k-$145k/yrHybridFull Time
WOW!: Provides broadband internet, cable television, and digital phone services.
3+ YOEFull-stack engineer with 3+ years building scalable web applications using Next.js and Node.js, strong AWS experience, REST/GraphQL APIs, serverless, CI/CD, AI-assisted tooling, and familiarity with web performance and accessibility standards.