47 api developer jobs at 29 companies in Granby, CO
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API Engineer
Boulder, Colorado, United States
$80k-$110k/yr HybridFull Time
1+ YOEExperience building and maintaining APIs, data schemas/versioning, testing and CI/CD; proficiency with Git, Linux, and modern programming languages; Master's or Bachelor's plus 1-2 years API/pipeline experience.
Python, REST, JSON, OpenAPI, JSON Schema, Git, Linux, Docker, Terraform, CloudFormation, GitHub Actions, GeoJSON, GeoParquet, R, Shiny, Rust, AWS
2w
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Full-Stack Developer
Broomfield, Colorado, United States
HybridFull Time
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
2w
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Senior Full-Stack Lead Developer
Broomfield, Colorado, United States
$89k-$125k/yr HybridFull Time
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
1mo
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Frontend Engineer
Toulouse or San Francisco or Golden
OnsiteFull Time
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
1mo
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Staff Software Engineer
Broomfield, Colorado, United States
$145k-$185k/yr HybridFull Time
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
1w
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Senior Software Engineer, Radar
Broomfield or Fort Collins
$190k-$252k/yr OnsiteFull Time
5+ YOE5+ years software development experience; proficiency in C++; experience with Nix/NixOS, API design, reproducible builds, and software quality/security practices; Bachelor's in CS/CE or related.
C++, Python, Nix, NixOS, Lattice OS, gRPC, Protobuf, ZeroMQ, DDS, Docker, Linux
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TypeScript Developer
Boulder, Colorado, United States
$80k-$110k/yr RemoteFull Time
Requires strong TypeScript and modern framework skills, interactive web interface experience, REST/JSON API integration, Git, web tooling, and a relevant degree or equivalent hands-on experience.
TypeScript, React, REST, JSON, Git, MapLibre GL, Leaflet, deck.gl, PMTiles, GeoJSON, Learning Management System (LMS), Employee Assistance Program (EAP)
3w
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R&D Software Engineer
Boulder, Colorado, United States
$110k-$150k/yr OnsiteFull Time
5+ YOERequires a STEM bachelor's degree, 5+ years of professional C# programming, software application design, manufacturing experience preferred, and familiarity with databases, development frameworks, and equipment interfaces.
C#, WPF, ADO.NET, Entity Framework, WCF, Microsoft SQL Server, TSQL, MVVM, Windows Services, MVC, JavaScript, Web API, Git, GitHub, Microsoft Visual Studio, Visual Studio Code, C++, Python, SCADA, RS232, RS488
1w
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Staff Linux Software Engineer (Multiple Locations)
San Diego or Boulder
$135k-$202k/yr OnsiteFull Time
2+ YOEExperience developing Linux system software and drivers in C/C++; strong understanding of Linux internals, multi-threading, API design, SoC architecture; proficiency with git and debugging tools.
Linux, C, C++, Java, Python, git, KVM, Docker, SR‑IOV, gtest, PCIe, UML
3mo
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Full Stack Engineer, Senior
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/yr HybridFull Time
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.
React, Vue, Angular, JavaScript, TypeScript, .NET, Java, Node.js, Python, MS SQL Server, Oracle, NoSQL, REST, Azure, AWS, GCP, Docker, Kubernetes, Ansible, Bicep, ARM, Terraform, GitHub, GitLab, Bitbucket, Git
3w
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Fullstack Engineer
Boulder, Colorado, United States
$95k-$115k/yr HybridFull Time
3+ YOE3+ years software engineering experience, strong C#/.NET and SQL Server skills, REST API and distributed services experience, working knowledge of JavaScript, SDLC experience, debugging and problem-solving.
C#/.NET, REST, SQL Server, JavaScript
2mo
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Senior Software Engineer
Boulder, Colorado, United States
$140k-$185k/yr HybridFull Time
3+ YOEDesign and build API integrations and data pipelines; experience with log collectors; cloud platforms; Go/Kotlin/TypeScript; 3–6+ years in relevant roles.
AWS, GCP, Azure, Docker, Kubernetes, GitHub Actions, Fluentd, Fluent Bit, Vector, Logstash, Elastic Beats, OpenTelemetry Collector, rsyslog, syslog-ng, Elasticsearch, Kibana, Kafka, Terraform, Go, Kotlin, TypeScript, JSON, CEF, Syslog
1mo
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Senior Software Engineer - Java/Kotlin
Boulder, Colorado, United States
$131k-$167k/yr OnsiteFull Time
5+ YOEBachelor's in CS/CE/SE or equivalent and 5+ years experience; mastered Java/Kotlin with Spring; experience designing software systems, microservices, REST APIs, databases, Docker/Kubernetes; strong communication and leadership skills.
Java, Kotlin, Spring Framework, Spring Boot, Spring Cloud, Spring Security, WebFlux, Microservices, RESTful API, Relational Databases, NoSQL, Docker, Kubernetes, Lit, Angular, Svelte, React, Vue, Agile
2w
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Data Engineer
Boulder, Colorado, United States
OnsiteFull Time
5+ YOE5+ years data engineering experience, strong SQL and PostgreSQL skills, ETL/ELT and API integration experience, SnapLogic, AWS, Git, Python, Linux/MacOS scripting, bachelor's degree in a related field.
SQL, PostgreSQL, SnapLogic, GIT, AWS, python, Linux, MacOS, REST API
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Process Automation Engineer
Longmont, Colorado, United States
$115k-$134k/yr OnsiteFull Time
3+ YOEBachelor's degree and 3+ years experience in process automation, AI, or software development; experience with LLMs, workflow automation, APIs, on-premises deployments, and stakeholder management.
Large Language Model (LLM), Microsoft Copilot, Open AI, Anthropic, SQL, Python, JavaScript, Infor Syteline, HubSpot CRM, StarShip, Power BI/Fabric, SharePoint, Power Automate
2mo
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Applied AI Engineer ( Remote - North American Timezones)
Boulder or New York
$125k-$200k/yr RemoteFull Time
3+ YOEProven experience shipping LLM-backed systems, data and platform expertise, and strong software engineering skills.
PostgreSQL, Supabase, Search and Retrieval Systems, Embeddings, Ranking, Chunking, Workflow Orchestration, Queues, IDEMPOTENT JOBS, CI/CD, Render, TypeScript, React, Next.js, API Design
1mo
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GIS Developer, DevOps, Geospatial Scripting & Application Support Opportunities
Golden or United States
$105k-$140k/yr HybridFull Time
5+ YOE5+ years GIS development experience, Bachelor’s in related field, proficiency with ArcGIS enterprise platforms, Python/JavaScript/.NET, SQL, DevOps, APIs, and ability to obtain Public Trust clearance.
ArcGIS Pro, ArcGIS Enterprise, ArcGIS Server, Portal for ArcGIS, ArcGIS Online, ArcGIS API for JavaScript, ArcGIS API for Python, Python, JavaScript, .NET, ASP.NET, HTML, CSS, SQL, Java, XML, FME, ArcPy, SQL Server, ArcSDE, REST, Survey123, Field Maps, Collector, JIRA
2w
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Senior Security Automation & SOAR Engineer
New York or Boulder or Princeton
$140k-$155k/yr OnsiteFull Time
5+ YOE5+ years designing and implementing SOAR automation, strong incident response experience, Python and YARA proficiency, REST API and integrations, SIEM/SOAR/EDR platform expertise, AWS and IaC experience, data analysis with Pandas/SQL/Elasticsearch.
Python, YARA, REST API, Splunk, Elastic, Sentinel, Phantom, XSOAR, Swimlane, CrowdStrike, SentinelOne, Microsoft Defender, AWS, Terraform, CloudFormation, Pulumi, Pandas, SQL, Elasticsearch, Google SecOps platform, Agentic AI, Large Language Models, Okta, Microsoft Entra ID, SailPoint, Proofpoint, Mimecast, Git, GitLab, Bitbucket, Docker, Podman, containerd, Jenkins, GitLab CI, Azure DevOps, ThreatConnect, Anomali, MISP
4d
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Production Engineer II
Florence or Denver or Boulder
$105k-$135k/yr OnsiteFull Time
4+ YOE4+ years building production systems; strong Python, backend/API, cloud (AWS) and Docker experience; experience with logging, monitoring, reliability, and multi-environment systems.
Python, AWS, Docker, ROS2, CI/CD
2w
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R&D Engineer SW Quality 3
Broomfield, Colorado, United States
$91k-$146k/yr OnsiteFull Time
8+ YOEBachelor's in engineering, 8+ years software testing experience, strong automation (Python), Linux/Windows/VMware skills, networking and SAN knowledge, JIRA and REST API experience.
Python, Linux, Windows, VMware, JIRA, REST API, Claude Code, Gemini AI
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