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51 java backend jobs at 34 companies in Castle Rock, CO

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Founding Backend / Infra Engineer
Cupertino, CA, US
$160k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Own the crawlers, pipelines, and infrastructure powering a real-time job search engine. Strong Node.js and Python fundamentals; bonus points for security and reverse-engineering chops.
Node.js, Python, Elasticsearch, Redis
Help us #BeatIndeed & #BeatLinkedIn
2mo
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Engineer II, Backend APIs
Los Angeles or Boulder
$115k-$135k/yr HybridFull Time
Magnite
MagniteNASDAQ: MGNI: Independent sell-side platform for digital media advertising.
3+ YOE3+ years software engineering; Java backend; Postgres; Git; strong communication.
Java, PostgreSQL, Git, OpenAPI, Docker, Kubernetes
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3w
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Back End Software Developer
Colorado Springs, Colorado, United States
$101k-$175k/yr HybridFull Time
LMI
LMI: Delivers management, technology, and analytics solutions for federal agencies.
5+ YOEBachelor's in CS or related, 5+ years backend development, proficiency in Python/Java/Node.js, REST APIs, relational/NoSQL DBs, Git; TS/SCI clearance eligibility preferred.
Python, Java, Node.js, PostgreSQL, MongoDB, Django, Flask, Spring Framework, Git, Amazon Web Services, Microsoft Azure, Docker
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3w
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Back End Software Developer
Colorado Springs, Colorado, United States
$101k-$175k/yr HybridFull Time
LMI
LMI: Provides management consulting and digital solutions to federal government agencies.
5+ YOEBachelor's in CS/CE or related, 5+ years backend development, proficiency in Python/Java/Node.js, RESTful API design, experience with PostgreSQL/MongoDB, familiarity with Django/Flask/Spring and Git, ability to work with data-intensive systems.
Python, Java, Node.js, PostgreSQL, MongoDB, Django, Flask, Spring Framework, Git, Amazon Web Services (AWS), Microsoft Azure, Docker
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3w
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Backend Software Engineers - Colorado Springs
Colorado Springs, Colorado, United States
$75k-$150k/yr OnsiteFull Time
In-Depth Engineering
In-Depth Engineering: Develops combat systems and radar software for the US military.
2+ YOEU.S. citizen with valid passport and active Secret clearance; Bachelor's in CS/CE/SE or STEM; 2+ years professional experience; experience with Rust/C, Java, Docker, gRPC, and full SDLC.
Rust, C, Java, Docker, gRPC, Kubernetes, Helm, Gitlab CI/CD, Python, Selenium, Cypress, Playwright
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2mo
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Senior Backend Engineer, Space Operations Intelligence & Autonomy (SOIA)
Colorado Springs or Alabama or Arizona or California or Colorado or District of Columbia or Florida or Georgia or Hawaii or Illinois or Indiana or Kansas or Massachusetts or Maryland or Michigan or Minnesota or Missouri or Montana or North Carolina or New Jersey or New Mexico or Nevada or New York or Ohio or Oklahoma or Oregon or Rhode Island or Tennessee or Texas or Utah or Virginia or Washington or Wisconsin or West Virginia or United Kingdom
$150k-$200k/yr OnsiteFull Time
Slingshot Aerospace
Slingshot Aerospace: Software and data analytics for space operations management.
5+ YOE5+ years software development, bachelor’s in CS or related, active security clearance (Top Secret preferred), experience with Java/Kotlin, Python, cloud (AWS), containers, distributed systems, Kafka, databases, and API design.
Java, Kotlin, GraphQL, GraphQL subscriptions, REST, Docker, Kubernetes, React, Python, AWS, Helm, EKS, Git, GitHub Actions, Kafka, CloudEvents, PostgreSQL, MongoDB, Three.js, HLA, DIS
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2mo
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Software Engineer - Backend (Varying Levels)
San Francisco or Denver
$160k-$215k/yr HybridFull Time
Windfall
Windfall: Provides consumer financial data and AI-driven go-to-market insights.
5+ YOE5+ years of professional backend software engineering experience; expert OO programming; experience with transactional databases and distributed systems; strong communication and problem-solving skills; able to balance quality, complexity, and delivery speed.
GCP, Java, Kotlin, Spring Boot, Google PubSub, Postgres, BigQuery, Kubernetes, Docker
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3mo
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Sr Principal / Architect Engineer Software - Backend, Alerting (Chronosphere)
San Francisco or Denver or Austin or Jacksonville or Boston or New York City or Atlanta or United States
RemoteFull Time
Palo Alto Networks
Palo Alto NetworksNASDAQ: PANW: Provides enterprise-grade network, cloud, and endpoint security software.
Go, Kubernetes on AWS/GCP; distributed systems experience; owner-like mindset; collaborate with product, design, and engineering; build reliable user experiences.
Go, C++, Java, C#, Rust, Kubernetes, AWS, GCP
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2mo
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Senior Java Engineer - Cloud Platform
Denver, Colorado, United States
$170k-$200k/yr HybridFull Time
FusionAuth
FusionAuth: Provides authentication and user management software for developers.
10+ YOE10+ years software development; 6+ years in ops/platform; strong Java; AWS; Kubernetes; Terraform; Linux; SQL; cloud and backend architecture.
Java, AWS, Kubernetes, Terraform, Linux, SQL, Git
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2mo
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Software Engineer – C2BMC (Associate, Experienced or Senior)
Colorado Springs or Huntsville
$99k-$217k/yr OnsiteFull Time
Boeing
BoeingNYSE: BA: Designing and manufacturing commercial aircraft and defense systems.
2+ YOEBachelor's degree, ability to obtain Secret clearance, 2+ years backend Java, UML, and Agile experience.
Java, Spring, Oracle SQL, SQL Server, Eclipse, Maven, Gradle, microservices, UML
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2mo
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Software Developer
Colorado Springs, Colorado, United States
$75k-$100k/yr OnsiteFull Time
Auria
Auria: Engineering and software solutions for space and defense missions.
3+ YOEBackend software developer with Java/C++/Python in Linux; 3-4 years experience; BS in engineering; eligible for SECRET clearance.
Java, C++, Python, Linux, Maven, Gradle, CMake, Git, JUnit, PyTest, Google Test, Docker, Kubernetes, Jenkins, GitLab CI, Nexus
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3mo
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Software Engineers, C2BMC Missile Defense (Associate, Mid Level, Senior)
Colorado Springs or Huntsville
$99k-$217k/yr OnsiteFull Time
Boeing
BoeingNYSE: BA: Designs and manufactures aircraft, defense systems, and space technology.
2+ YOEBachelor’s degree, active Secret clearance, 2+ years backend Java development, Unix/Linux, Git/Jira/VersionOne, SysML.
Java, Spring, Oracle SQL, SQL Server, Unix, Linux, Git, Jira, VersionOne, SysML, Eclipse, Maven, Gradle, Microservices
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1w
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Software Engineer - iOS/Android
Birmingham or Strongsville or Denver or Pittsburgh or Dallas
$60k-$150k/yr OnsiteFull Time
PNC Financial Services
PNC Financial ServicesNYSE: PNC: Provides banking, lending, and investment services to customers.
5+ YOE5+ years software development with Java backend and mobile (iOS/Android) experience, Bachelor's in CS or related, strong frontend and cloud/DevOps skills.
Java, Java 11, Java 17, Spring Boot, Spring MVC, Hibernate/JPA, REST APIs, Microservices, Maven, Gradle, Angular, React, Vue, JavaScript, TypeScript, HTML5, CSS3, Swift, Objective-C, Kotlin, Android SDK, iOS SDK, React Native, Flutter, Oracle, PostgreSQL, SQL Server, MongoDB, Azure, AWS, Docker, Kubernetes, Git, Jenkins, SonarQube, Jira, Postman, Kafka, GitHub Actions, Microsoft Azure DevOps, GitLab
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3mo
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Staff Engineer, Core Services Platform
San Francisco or Denver
$225k-$278k/yr HybridFull Time
Strava
Strava: Fitness tracking and social networking app for athletes.
10+ YOE10+ years backend engineering; tech lead experience; distributed systems design; proficient in Ruby/Scala/Go/Java; AWS; Kafka/Kubernetes; MySQL/Redis/Cassandra.
Ruby, Scala, Go, Java, AWS, Kafka, Kubernetes, MySQL, Redis, Cassandra
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1w
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Senior Software Engineer — PingOne Platform Administration & Security
United States or Denver
$110k-$138k/yr RemoteFull Time
Ping Identity
Ping Identity: Provides identity and access management software for enterprise security.
5+ YOE5+ years software engineering experience with backend services; Java and NodeJS experience; TypeScript and REST API familiarity; experience with SaaS, CI/CD, distributed systems, and mentoring peers.
Java, NodeJS, TypeScript, REST APIs, CI/CD, MCP
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5d
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Senior Business Systems Analyst
Pittsburgh or Cleveland or Dallas or Birmingham or Phoenix or Denver
OnsiteFull Time
CGI
CGINYSE: GIB: Provides information technology and business consulting services.
8+ YOE8+ years BSA experience with mobile app development, API/Java backend, Agile/Scrum, Swagger and Gherkin, strong requirements definition, process modeling, leadership and communication skills.
Java, Swagger, Gherkin, Microservices
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2mo
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Software Engineer II - TS w/ SCI eligibility
Colorado Springs or San Diego or Norfolk
$104k-$181k/yr OnsiteFull Time
Parsons
ParsonsNYSE: PSN: Provides engineering and technology services for infrastructure and defense.
5+ YOETop Secret clearance with SCI eligibility; 5+ years software development; backend services and APIs; Java, TypeScript/JavaScript; Angular; PostgreSQL; containerized apps; Git/Kibana; strong communication and teamwork.
Java, TypeScript, JavaScript, Angular, PostgreSQL, Docker, Kubernetes, Kafka, Git, Bitbucket
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2w
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Full Stack Developer
Denver, Colorado, United States
$130k-$140k/yr HybridFull Time
Strategic Retail Partners
Strategic Retail Partners: Provides in-store merchandising and distribution solutions for retailers.
10+ YOE10+ years full-stack development with strong backend focus; proficiency in Kotlin/Java and PL/SQL; deep Oracle DB knowledge; cloud (OCI) experience; strong troubleshooting and collaboration skills.
Kotlin, Java, PL/SQL, REST(JSON), Angular, Bootstrap, Jenkins, GitLab CI, Microsoft Azure DevOps, Git, Oracle 19c, Oracle 23ai, Oracle Cloud Infrastructure (OCI), Exadata, Linux, Oracle ERP, REST, SOAP, LDAP, FedEx APIs, Python
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6d
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Sr. Associate, Software Engineer (41001)
Colorado Springs, Colorado, United States
$75k-$139k/yr OnsiteFull Time
L3Harris Technologies
L3Harris TechnologiesNYSE: LHX: Aerospace and defense providing mission-critical technology solutions.
2+ YOEBachelor's degree with 2+ years related experience (or grad degree or 4+ years experience), active Secret clearance, experience in Linux backend software, proficiency in C++ and Java, CI/CD exposure.
C++, Java, Linux, CI/CD, DevSecOps, SGP4
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1w
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Tech Lead Software Engineer
Tulsa or Denver
$145k-$165k/yr OnsiteFull Time
BOK Financial
BOK FinancialNASDAQ: BOKF: Provides commercial, consumer banking, and wealth management services.
8+ YOE8+ years experience, technical leadership, strong backend Java/JVM experience, AWS and event‑driven architecture, service ownership, strong testing/CI/CD discipline, excellent technical communication.
Java, AWS, Docker, Kubernetes, EKS, ECS, Lambda, Terraform, CDK, New Relic, Datadog, Prometheus, MongoDB, Redis, Kong, Apigee
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3mo
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Senior AI Platform and Reliability Engineer
Littleton, Colorado, United States
$96k-$145k/yr OnsiteFull Time
EchoStar
EchoStarNasdaq: SATS: Global provider of satellite solutions and wireless communications services.
5+ YOEBachelor’s in CS or 5+ years in backend/full-stack software; 2+ years AI-powered development; strong Python/Java; AWS, Kubernetes; AI/ML, RAG, Milvus; observability; automation tools.
Python, Java, AWS, Kubernetes, Serverless, Ansible, Bash, Milvus, Dynatrace, CloudWatch, IBM Watsonx.ai, AWS Bedrock
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