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29 full stack api developer jobs at 22 companies in Loveland, CO

1w
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Full-Stack Developer
Broomfield, Colorado, United States
HybridFull Time
Sonepar
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
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2mo
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Full Stack Engineer
Denver, Colorado, United States
$115k-$130k/yr OnsiteFull Time
AIR Communities
AIR Communities: Owns and operates residential apartment communities across the US.
5+ YOE5+ years full-stack development with C#, .NET, React; strong API, database, security, and cloud experience.
C#, .NET, ASP.NET Core, Entity Framework, React.js, JavaScript, TypeScript, SQL, Azure, AWS, GCP, CI/CD, Git
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2mo
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Full Stack Software Engineer
New York or Denver
HybridFull Time
Gen II Fund Services
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
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Senior Full-Stack Lead Developer
Broomfield, Colorado, United States
$89k-$125k/yr HybridFull Time
Vail Resorts
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
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Full Stack Software Engineer
Denver or United States
RemoteFull Time
DomainTools
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.
Laravel, Symfony, PHP, JavaScript, TypeScript, React 18, Redux, PHPUnit, Jest, Git, Docker, Babel, Webpack, ESLint, Kubernetes, TestCafe, Playwright, MySQL, HTML5, CSS3
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1mo
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Staff Full Stack Engineer - Partnerships Engineering
New York City or Denver or Leeds or Dublin
$144k-$237k/yr RemoteFull Time
Fanatics
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.
Go, TypeScript, React, Kafka, OAuth 2.0, OpenID Connect, SAML
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Senior Software Engineer, Full-Stack (Copy)
United States or Denver
$140k-$180k/yr RemoteFull Time
Doowii
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.
Python, SQL, AWS, GCP, Azure, LLM APIs, Pinecone, Weaviate, pgvector, OpenSearch, Airflow, Dagster, dbt, Kafka, Spark, Iceberg, ClickHouse, BigQuery, Snowflake
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2w
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Software Engineer - Full Stack
Pittsburgh or Denver or Strongsville or Birmingham or Farmers Branch
$75k-$138k/yr OnsiteFull Time
PNC Financial Services
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.
Java, Angular, REST APIs, Microservices, Git, SQL/NoSQL Databases, AWS, Azure, GCP, Docker, Kubernetes, Spring Boot, CI/CD Tooling
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2mo
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Staff software engineer, full-stack
Denver, Colorado, United States
$215k-$254k/yr OnsiteFull Time
Watershed
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.
Node.js, APIs, Data pipelines, JavaScript
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Application Developer
Denver, Colorado, United States
$94k-$110k/yr RemoteFull Time
Cushman & Wakefield
Cushman & WakefieldNYSE: CWK: Global commercial real estate and property services firm.
Salesforce development (Apex/LWC), full‑stack web development, API integrations, Git proficiency, strong communication and problem‑solving skills.
Salesforce, Apex, LWC, Git, Unframe
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4d
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Senior Software Engineer
Denver, Colorado, United States
$185k-$225k/yr OnsiteFull Time
Amatriot Group
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.
REST, AWS, GCP, Azure, Kubernetes, Docker, Node.js, NPM, Linux, Subversion, Git, JIRA, Confluence, HTML5, CSS, SASS, Less, Stylus, Browserify, WebPack, Closure, Angular, Ember, React, Redux, Reactive, VueJS, SVG, HTML5 Canvas, WebGL, WebSockets, Svelte, Cesium, OpenLayers, Spring
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1mo
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Software Engineer
Aurora, Colorado, United States
$69k-$158k/yr OnsiteFull Time
Booz Allen Hamilton
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.
Python, Java, Vue, Node, AWS, Azure, GCP, RESTful APIs, Linux, Docker, Kubernetes, C#, C, C++, JavaScript, React
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3w
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Software Engineer
Denver, Colorado, United States
$115k-$135k/yr HybridFull Time
Litera
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
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3w
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Staff Software Engineer
Broomfield, Colorado, United States
$145k-$185k/yr HybridFull Time
Recurly
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
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1mo
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Lead System Engineer
Orlando or Tampa or Lakeland or Melbourne or Daytona Beach or Las Vegas or Denver or Houston
$70-$75/hr RemoteFull Time, Contract
CAI
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.
Oracle, PL/SQL, APIs, Microsoft Azure, .NET, Angular, Python, GitHub Copilot, Azure OpenAI, TestGPT, Docker, Kubernetes, CI/CD
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1mo
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Software Engineer III
Denver or Nashua or Augusta or Pinellas Park or Madison Heights
$125k-$145k/yr HybridFull Time
WOW!
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.
Next.js, Node.js, REST API, GraphQL, Serverless, AWS, EC2, Lambda, S3, CloudFront, API Gateway, ECS, EKS, WAF, IAM, GitHub Copilot, Cursor, Claude, Contentful, Optimizely, LaunchDarkly, Google Analytics 4 (GA4), CI/CD
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1mo
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Forward Deployed Engineer
Chicago or Denver or Houston or Minneapolis or New York City
$116k-$223k/yr OnsiteFull Time
Spaulding Ridge
Spaulding Ridge: Global advisory and cloud technology implementation firm.
7+ YOE7+ years consulting or related experience; strong Snowflake architecture, SQL, data modeling, ELT/ETL, dbt, full-stack development (Python, JavaScript/TypeScript), API/integration experience, client advisory and team leadership.
Snowflake, Snowpark, dbt, Fivetran, Boomi, MuleSoft, Workato, Matillion, Apache Airflow, Sigma, Microsoft Power BI, Tableau, Looker, Omni, JavaScript, TypeScript, React, Next.js, Node.js, Python, FastAPI, Flask, .NET, Java, SQL, Git, CI/CD, Streamlit, Cortex, Apache Iceberg, Microsoft Fabric, REST, JSON, OAuth, ELT, ETL, iPaaS
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2w
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Senior Android Developer
Pittsburgh or Cleveland or Dallas or Birmingham or Phoenix or Denver
$71k-$157k/yr OnsiteFull Time
CGI
CGINYSE: GIB: Provides information technology and business consulting services.
7+ YOE7+ years mobile development experience, 5+ years Android, experience with REST/APIs and OAuth, MVVM/MVP, Jetpack Compose, Android tech stack, Agile, strong communication and mentoring skills.
Android, Java, Kotlin, Android Studio, Eclipse, XCode, Gradle, Git, Postman, Firebase, Google services, Retrofit, GSON, RxJava, Jetpack Compose, Objective C
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1mo
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Senior+ Software Engineer - Integrations Platform
Denver or San Francisco or India
$160k-$240k/yr OnsiteFull Time
Frontera Health
Frontera Health: AI-driven platform for automating and improving autism clinical care.
6+ YOE6+ years backend/full-stack engineering experience building APIs, integration platforms or data pipelines; strong system design and distributed systems knowledge; technical leadership and mentoring experience; experience with third‑party integrations (EHRs) and regulated data preferred.
APIs, EHRs, AI/ML
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5d
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Software Engineer
Aurora, Colorado, United States
$69k-$158k/yr OnsiteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Provides technology and management consulting services to diverse organizations.
3+ YOE3+ years software development experience, TS/SCI with polygraph required, Bachelor's in STEM, experience with Python/Java, cloud (AWS/Azure/GCP), RESTful APIs, Agile, and full‑stack development.
Python, Java, Vue, Node, AWS, Azure, GCP, RESTful APIs, Linux, Docker, Kubernetes, C#, C, C++, JavaScript, React
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