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Java Developer Jobs in Keystone, CO, US
53 java developer jobs from 23 companies hiring in Keystone, CO, US.
1mo
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Android Developer
Littleton, Colorado, United States
$90k-$160k/yr OnsiteFull Time
Sherpa 6: Develops engineering and technology solutions for tactical military operations.
5+ YOE5+ years Android development; Kotlin/Java; BS in Software Engineering or Computer Science; US citizenship with ability to obtain Secret clearance; strong Android tooling and REST/JSON experience.
Kotlin, Java, Android SDK, Android Studio, RESTful APIs, JSON, Git, JIRA, Trello
2w
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Software Engineer, Platform UI
Boulder or Mountain View
$147k-$211k/yr OnsiteFull Time
2+ YOEBachelor's degree or equivalent; 2 yrs software development; 2 yrs infra; 2 yrs Java; 1 yr web development.
Java, Web development, UI development, Distributed systems
10h
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Embedded Software Engineer Sr. Staff
Huntsville or Littleton or Sunnyvale
$134k-$236k/yr OnsiteFull Time
Experience in mid to large scale software development; proficient in C++/Java; embedded software development.
C++, Java, Embedded Software
1mo
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Android Mobile App Developer
Arvada, Colorado, United States
$30-$75/hr OnsiteContract
Contract Android developer with Java/Kotlin experience, Android UI, AWS integration, GitHub, security best practices, and debugging.
Android, Java, Kotlin, AWS, GitHub, Push Notifications, Security Best Practices
1mo
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Senior Software / Applications Developer
Denver or Lakewood
$106k-$130k/yr RemoteFull Time
5+ YOESenior-level software development for federal systems; PHP, ColdFusion, Java, SQL; API integrations; Agile DevSecOps; cloud migration; DO I security.
PHP, ColdFusion, Java, SQL, MuleSoft, Oracle, RHEL, AWS GovCloud, Git
3w
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Principal Software Development Engineer (P5)
Boulder, Colorado, United States
$182k-$274k/yr HybridFull Time
12+ YOE5+ Mgmt12+ years backend software development, Java, RESTful APIs, SQL, CI/CD, leadership/architecture experience.
Java, REST, SQL, Kubernetes, Docker, CI/CD, Jenkins, TestRail, Python, Scala
1d
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Lead Full Stack Software Engineer
Golden or Carmel
$154k-$205k/yr OnsiteFull Time
10+ YOE1+ Mgmt10+ years software development with 1-2 years leadership; expert in Java, React; Golang helpful; AWS cloud experience; strong architecture and CI/CD knowledge.
Java, React, Golang, AWS, CI/CD, Agile, Git
1w
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Software Engineer
Boulder, Colorado, United States
$120k-$160k/yr OnsiteFull Time
5+ YOE5+ years software engineering; Bachelor's in science/engineering/computer science; Java and C/C++; scripting; SQL; DoD SECRET clearance; onsite in Boulder, CO; DevSecOps focus; CI/CD; Kubernetes/Docker; strong collaboration and communication.
Java, C/C++, Python, Unix Shell Scripting, Batch File, Windows Script File, SQL, Windows, Linux, Kubernetes, Docker, OpenShift
3w
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Software Engineer
Boulder, Colorado, United States
$120k-$145k/yr OnsiteFull Time
3+ YOEUS citizenship; Bachelor’s in computer science; 3+ years in software development, with OPIR domain experience; eligibility for Secret clearance.
Typescript, Python, Java, DevSecOps
1mo
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Software Engineer Lead
Denver or Lakewood
$63k-$159k/yr OnsiteFull Time
3+ YOELead software engineer with design, development, and mentorship; strong SDLC, collaboration, and technical guidance.
Java, C#, .NET, SQL, REST, CI/CD, AWS
1w
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Software Engineer Level 2 or 3
Aurora or Boulder
$92k-$138k/yr OnsiteFull Time
2+ YOEBachelor's degree and 2+ years (level 2) or 5+ years (level 3) software engineering; active Top Secret/SCI clearance; strong Java; TypeScript; Git; Agile.
Java, TypeScript, React, Git, JUnit, TestNG, RabbitMQ, Elasticsearch, Linux
2mo
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Senior Lead Software Engineer
Lakewood, Colorado, United States
$95k-$130k/yr OnsiteFull Time
10+ YOELead software engineering with 10+ years of experience, strong design, mentoring, and expertise in PHP, JavaScript/NodeJS, AWS, MySQL, Java/Kotlin, Objective-C/Swift, Docker, Apache, OpenAPI, and Harness.
PHP, JavaScript, AWS, MySQL, Java, Kotlin, Objective-C, Swift, Docker, Apache, OpenAPI, Harness
2mo
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Advisory Software Engineer
Boulder, Colorado, United States
$93k-$110k/yr OnsiteFull Time
5+ YOEMS in CS/CE/EE or related field; 5+ years in software development; strong C/C++, Rust, Python; Linux IPC; AI/ML experience; Agile; travel up to 10%
C++, Rust, Python, Git, CI/CD, SQL, Java, JavaScript, AWS, Django, ReactJS, Linux
1mo
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Technical Lead - Software Developer, Data Foundry
San Francisco or San Diego or Boston or Louisville or Indianapolis
$152k-$244k/yr OnsiteFull Time
5+ YOE5–10+ years scientific software development; Python and another language; REST APIs, data pipelines, microservices; experience with scientific datasets.
Python, Java, C#, Go, TypeScript, Rust, SQL, REST APIs, Microservices, MLflow, Weights & Biases, Docker, Kubernetes, AWS, Azure, GCP, Prefect, Airflow, Nextflow, Postgres, Redshift, Snowflake, BigQuery, LIMS, ELN, Benchling, RDKit, Schrödinger, MOE, Git, Linux, Bash
1mo
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Applications Developer II
Phoenix or Loveland or Lakewood or Folsom
$85k-$88k/yr OnsiteFull Time
3+ YOEBachelor’s degree in Computer Science or Information Technology; 3–7 years in application development; Java, SQL, SpringBoot, front-end (Kendo UI or similar); Oracle and PostgreSQL; OAuth2 security; AWS cloud experience; on-call support.
Java, SQL, Kendo UI, SpringBoot, Oracle, PostgreSQL, OAuth2, AWS
1w
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Front End Engineer II - Reporting
Boulder, Colorado, United States
$103k-$170k/yr HybridFull Time
2+ YOE2-4 years software development; proficient in React and JavaScript/TypeScript; experience building enterprise services; BS/MS in CS or related field or equivalent experience
React, JavaScript, TypeScript, C#, Java, NodeJS, SQL
2w
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Engineer Senior - Ground Software Developer
Fairborn or Boulder or Broomfield
$88k-$150k/yr OnsiteFull Time
4+ YOEBS degree in Engineering or related field plus 4+ years of experience; active Top Secret/SCI clearance with polygraph; experience in Java, RESTful services, SpringBoot, Kubernetes, Git, Kafka/MongoDB; leadership experience.
Java, SpringBoot, Mockito, Lombok, OpenAPI, REST, Kubernetes, Helm, Git, Kafka, MongoDB, ActiveMQ, NiFi, Python, C++
4d
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Principal Software Engineer
Boulder or New York City
$200k-$240k/yr HybridFull Time
10+ YOE10+ years software engineering; 5+ years adtech infrastructure; backend focus; experience with AI tooling; distributed systems; OpenRTB knowledge.
Java, Kafka, Redpanda, AWS, Databricks, Datadog, ONYX
2mo
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Oracle Fusion Middleware Developer-SCON
Washington or Lakewood
$100k-$203k/yr RemoteFull Time
Accenture Federal Services: Delivering technology and consulting solutions to federal government agencies.
Senior-level Oracle Fusion Middleware experience with WebLogic, SOA, BPM, WebCenter, ADF; strong Java/J2EE, XML, integration patterns; Linux/Unix; deployment automation; cloud/hybrid architectures.
Oracle WebLogic Server, Oracle SOA Suite, Oracle BPM Suite, Oracle WebCenter Suite, Oracle ADF, OAM, OUD, IdM, WLST, ANT, Maven, Git, Linux/Unix, Java, XML, XSD, XSLT, SOAP, REST
2d
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Principal Systems Engineer
Boulder, Colorado, United States
$180k-$195k/yr HybridFull Time
10+ YOESECRET clearance; 10+ years space systems; design, integration, testing; C#/C++/Java; SysML/Cameo; gRPC/Kafka/DDS; OpenShift/Kubernetes; DevSecOps; system owner.
Cameo Systems Modeler, SysML, gRPC, Kafka, DDS, OpenShift, Terraform, Ansible, Kubernetes, OpenTelemetry, Jaeger
1w
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Engineer Senior - Systems - MBSE Core Capabilities
Boulder, Colorado, United States
$97k-$165k/yr HybridFull Time
4+ YOEBS in engineering with 4+ years MBSE tool experience; strong Cameo/MagicDraw, SysML v1.x, and UAF knowledge; collaboration with ITS/ESS and other MBSE teams.
Cameo/MagicDraw, SysML, UAF, Jama API, Cameo API, Python, Java
1w
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Engineer Senior - Systems - MBSE Core Capabilities
Boulder or Westminster or Broomfield
$97k-$165k/yr OnsiteFull Time
4+ YOEBS in engineering or related field with 4+ years experience; MBSE tools expertise; strong SysML/UAF knowledge; communication and change management skills.
Cameo/MagicDraw, SysML, UAF, Jama API, Python, Java
1mo
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Senior Software Architect
Boulder, Colorado, United States
$150k-$200k/yr OnsiteFull Time
Bachelor's degree in CS or related field; proven software architect with experience designing complex systems; strong software architecture knowledge; proficient in C, C++, Java, Python; Linux (Ubuntu); cloud (GCP, AWS, Azure); UI/UX and API integration; cybersecurity awareness.
C, C++, Java, Python, Ubuntu Linux, Google Cloud, AWS, Azure, UI/UX, APIs
1w
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Software Engineering Technical Leader
Boulder or Austin or Atlanta
$149k-$219k/yr RemoteFull Time
6+ YOEBachelor’s with 7+ years (or Master’s with 6 years; PhD with 3 years) in software engineering; strong experience in distributed systems, cloud-native services, and data processing; proficiency in Go, Java, or C/C++, plus Kafka, Kubernetes, OpenTelemetry; leadership and cross-team collaboration.
Go, Java, C/C++, Kafka, Kubernetes, OpenTelemetry, Linux
1w
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Technical Architect (9825)
Boulder, Colorado, United States
$226k/yr HybridFull Time
8+ YOEBachelor’s degree or Master’s in CS/IT/Engineering with 6–8 years in software engineering/product development; experience with large-scale enterprise software; willing to relocate to Boulder, CO; telecommuting with manager approval.
Software Architecture, Enterprise Software, Service Oriented Architecture, Java, C++, Cloud
1mo
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Post-Doctoral Fellow, Intelligence and Computing Lab
Golden, Colorado, United States
$60k/yr OnsiteFull Time
PhD in electrical engineering or closely related field by June 1, 2026; expertise in power system simulation or resilience, physics-informed ML, or geospatial data-driven modeling; strong publication record; programming in Python/Java; ML and geospatial data processing experience.
Python, Java, OpenDSS, GridLAB-D, PandaPower, InterPSS, PyTorch, TensorFlow
HiringCafe market data
Java Developer Jobs market signals in Keystone, CO, US
These signals come from live HiringCafe job inventory, not a static article. Use them to compare the market, then open listings above to apply directly.
Open jobs
53
Hiring companies
23
Fresh sample
55% new in 30d
Salary visibility
93% show pay
Companies appearing in this market
BAE SystemsGoogleLockheed MartinSherpa 6WorkdayAllegionNorthrop GrummanThe Trade Desk
Work location mix in visible results
Onsite: 30Hybrid: 10Remote: 4