51 sr java developer jobs at 27 companies in Fort Collins, CO
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Senior Java Software Engineer
Boulder, Colorado, United States
$131k-$167k/yr OnsiteFull Time
5+ YOEBachelor's in CS or related plus 5+ years experience or equivalent; strong Java and Spring proficiency; ability to design software systems, research algorithms, decompose requirements, and lead complex projects.
Java, Spring
1mo
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Staff Engineer (Java)
Los Angeles or Broomfield
$155k-$180k/yr HybridFull Time
6+ YOE6+ years production Java experience, expertise in microservices, Spring Boot, Docker, AWS, relational and NoSQL databases, messaging systems, CI/CD, and automated testing.
Java, Spring Boot, Docker, AWS, EC2, ECS, Hibernate, MySQL, Oracle, Postgres, Redis, MongoDB, DynamoDB, RabbitMQ, Kafka, Maven, Git, Jenkins, Puppet, Jira, JavaScript, React, Ant Design, Material UI, React Bootstrap, Model Context Protocol (MCP)
1w
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Sr Software Engineer
Lafayette, Colorado, United States
$125k-$187k/yr OnsiteFull Time
5+ YOEBachelor's degree in computer science, computer engineering, or equivalent; 5+ years with C++, C#, and Java; Linux, Windows, cloud platforms, software development, and regulated medical-device experience.
C++, C#, Java, Linux, Microsoft Windows, cloud platforms
1w
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Sr Software Engineer
Lafayette, Colorado, United States
$125k-$187k/yr OnsiteFull Time
5+ YOEBachelor's degree in computer science, computer engineering, or equivalent; 5+ years with C++, C#, and Java; Linux, Windows, cloud platforms, OOA&D, regulated software, and change management experience.
C++, C#, Java, Linux, Windows, cloud platforms, OOA&D, AI
1mo
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Sr AI/ML Engineer
Lone Tree or Sparks or Longmont or Hagerstown or Herndon or Englewood
$143k-$197k/yr HybridFull Time
10+ YOE10+ years experience in AI/ML with expertise in transformers, generative models, reinforcement learning, and production deployment; bachelor's in STEM or equivalent experience; proficiency in Python/C++/C#/Java and ML frameworks; ability to obtain Secret clearance.
TensorFlow, PyTorch, Python, C++, C#, Java, CUDA, TensorRT
1mo
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Sr. Software Engineer - Full Stack - UI
Denver or Broomfield
$90k-$120k/yr HybridFull Time
7+ YOEBachelor's or master's degree in computer science or equivalent experience; 7+ years software development, 4+ years front-end/UI development, full-stack delivery, Linux and Windows, problem-solving, and communication skills.
TypeScript, Angular, React, SignalR, Vue, CSS, Node.js, .NET Core, C#, Java, Spring Boot, REST, GraphQL, Kafka, RabbitMQ, OAuth2, OIDC, Entra ID, Azure, AWS, GCP, Docker, Kubernetes, GitHub Actions, Azure DevOps, Terraform, Bicep, Microsoft SQL Server, Web Components, Progressive Web Apps (PWA), Next.js, Angular Universal, OWASP, Linux, Windows
2w
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Sr Staff Fullstack Developer (Frontend focused)
Exton or Boulder or Huntsville or Dayton
$136k-$204k/yr OnsiteFull Time
4+ YOEBachelor's with 8 years, master's with 6, or PhD with 4; front-end and back-end development expertise, cloud deployment, web components, Git, Agile, and testing experience.
HTML5, CSS3, JavaScript, React, Angular, C#, Java, Python, Node.js, Docker, Kubernetes, AWS, Microsoft Azure, Git, Jasmine, Karma, Jest, Vitest, Ansys
2mo
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Staff / Sr Staff C++ Software Engineer
Boulder, Colorado, United States
$100k-$146k/yr OnsiteFull Time
2+ YOEBachelor’s in physical sciences/math/engineering/CS; 2+ years C++, Linux; Agile; data structures; optimization; detail-oriented; strong communication; able to work in Boulder; DoD clearance.
C++, Linux, GitLab CI/CD, Docker, Kubernetes, Helm, Java, Python, Rust
3mo
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Sr Software Engineer, Product Owner - Ground Software
Centennial or Louisville
$157k-$215k/yr OnsiteFull Time
8+ YOEBachelor's degree or equivalent; 8+ years experience; expert in multiple programming languages; design/architect complex software; Agile/Scrum; leadership; ability to obtain security clearance.
Python, C++, Java, Git, GitHub, GitLab, Bitbucket, CI/CD, Static analysis tools
2mo
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Senior Software Engineer (Big Data)
Westminster, Colorado, United States
$89k-$165k/yr HybridFull Time
5+ YOE5+ years software development in distributed environments; proficient in Scala/Python/Java, Apache Spark, Hadoop/Hive, SQL, and AWS; Databricks and ML experience preferred; BA/BS in Computer Science.
Python, Apache Spark, Scala, Java, Hadoop, Hive, AWS, Databricks, Delta Lake, Unity Catalog, Kubernetes, Docker, Airflow, SQL, Git, ELK stack, Elasticsearch, Logstash, Kibana
3w
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Sr. Principal Software Engineer - Boulder, CO
Boulder, Colorado, United States
$149k-$167k/yr OnsiteFull Time
9+ YOEExperience in Linux and software development with Python and C/C++; strong algorithm, state estimation, and data analysis skills; ability to obtain TS/SCI; willingness to travel up to 10%.
Python, C++, C, Java, Linux, grep, awk, cat, head, Git, Conan, CMake, Nexus, Bash, Jira, Confluence, Bitbucket, Atlassian Tool Suite
2mo
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Software Dev Engineer III - AMZ9899639
Boulder, Colorado, United States
$168k-$227k/yr OnsiteFull Time
5+ YOEMaster's or Bachelor's in CS/Engineering/Math (or related) with corresponding experience; experience designing large-scale distributed systems, object-oriented design, and development in Java, C++, or C#; technical leadership and project management experience.
Java, C++, C#
2d
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Sr. QA Automation Engineer
United States or Boulder
$120k-$135k/yr RemoteFull Time
5+ YOERequires 5+ years in QA, 3+ years with Cypress or Playwright using TypeScript or JavaScript, automated framework experience, QA strategy, AI-assisted testing, debugging, and collaboration skills.
Cypress, Playwright, TypeScript, JavaScript, Jira, Copilot, Claude Code, React, Java, Python
2d
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Scientific Full Stack Developer
Boulder, Colorado, United States
$95k-$130k/yr RemoteFull Time
8+ YOEMaster’s degree in a relevant field and 8+ years of related experience required. Requires JavaScript frameworks, Java, Python, Node.js, databases, Docker, testing tools, Agile/Scrum, and team leadership.
Vue, React, Svelte, JavaScript, Java, Python, Node.js, Django, Microsoft SQL Server, PostgreSQL, MongoDB, Prefect, Docker, Selenium, Playwright, Drupal, Git, Agile, Scrum
3d
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Software Engineer/Senior Software Engineer - AI Platform (Agent Runtime)
Boulder or Atlanta or Pleasanton
$156k-$234k/yr HybridFull Time
5+ YOERequires 5+ years for Software Engineer or 8+ years for Senior Software Engineer, with backend/platform systems, distributed systems, APIs, secure systems, service-oriented architecture, and Java, Go, Rust, or Python experience.
Java, Go, Rust, Python, APIs
4w
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Principal Software Developer(hybrid)
Redwood City or Santa Clara or Austin or Seattle or Nashville or Broomfield
$94k-$224k/yr HybridFull Time
7+ YOE7+ years software development experience with object-oriented languages; strong CS fundamentals, distributed systems and microservice experience, problem-solving and communication skills.
Java, C++, C#, Javascript, Go
1w
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Senior Software Engineer - Backend Engineering
Broomfield or Chicago or Peoria or Irving
$113k-$183k/yr OnsiteFull Time
8+ YOERequires 8+ years building enterprise-scale backend applications, with Java, Spring Boot, REST APIs, microservices, AWS, distributed systems, databases, technical leadership, mentoring, and communication skills.
Java, Spring Boot, REST APIs, Microservices, AWS, PostgreSQL, MySQL, DynamoDB, CI/CD
2w
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Senior Cloud Developer
Fort Collins, Colorado, United States
$144k-$273k/yr HybridFull Time
6+ YOE6+ years cloud development experience, bachelor’s or master’s in CS/engineering, strong programming in Python/Java/Golang/JavaScript, Kubernetes and cloud-native expertise, leadership and mentoring experience.
Python, Java, Golang, JavaScript, Kubernetes
2w
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Senior Cloud Developer
Fort Collins, Colorado, United States
$144k-$273k/yr HybridFull Time
6+ YOEBachelor's or master's in CS/engineering, typically 6+ years cloud development experience; strong skills in cloud-native architectures, microservices, containers, Kubernetes, Python/Java/Golang/JavaScript; leadership and communication skills.
Python, Java, Golang, JavaScript, Kubernetes
2mo
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Sr. Microsoft Power Platform Engineer (Broomfield, CO, US, 80021)
Broomfield, Colorado, United States
$140k-$150k/yr HybridFull Time
5+ YOE5+ years Modern Workplace/Microsoft 365 technical leadership; bachelor’s degree or equivalent; hands-on Power Platform/Power Automate and Copilot Studio experience; Microsoft 365 admin, Dataverse, connectors, governance, and programming (Python/Java) preferred.
Microsoft 365 Copilot, Microsoft Copilot Studio, Microsoft Power Platform, Microsoft Power Automate, Microsoft Dataverse, Microsoft Purview, Microsoft Entra ID, Microsoft Teams, Microsoft SharePoint, Microsoft OneDrive, Microsoft Outlook, Microsoft Exchange, Python, Java
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