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223 senior java python developer jobs at 86 companies in Castle Rock, CO

3w
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Lead Java Software Engineer
Denver or United States
$85k-$160k/yr RemoteFull Time
Resource Innovations
Resource Innovations: Provides clean energy services and software solutions for utilities.
8+ YOE8+ years building high-performance enterprise applications; Bachelor's/Master's in CS/Engineering; strong Java, Python, Spring Boot; MySQL and NoSQL; OpenSearch/Elasticsearch; Apache Camel; RabbitMq; AWS; CI/CD; microservices.
Java, Python, Spring Boot, MySQL, NoSQL, OpenSearch, Elasticsearch, APM, Apache Camel, RabbitMq, AWS, CI/CD, Kubernetes, Angular, GitHub Copilot, Claude, Jira, Confluence, Git
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3w
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Principal Java Software Engineer (Onsite)
Richardson or Aurora or Dulles
$108k-$205k/yr OnsiteFull Time
RTX
RTXNYSE: RTX: RTX provides advanced aerospace and defense systems and services.
8+ YOESTEM degree and minimum 8 years relevant experience; active transferable TS/SCI clearance and U.S. citizenship required; experience with Java, large-scale architecture, Agile, and Atlassian tools.
Java, Atlassian, Git, Chef, Ruby, Python, Groovy, SQL, NoSQL, AWS (S3, SQS, SNS), Apache Felix, Apache Velocity, Spring Boot, Spring Integration, Spring Framework, Docker, Kubernetes, Hibernate, Bitbucket, Jenkins, Artifactory
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2mo
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Senior Application Developer
Aurora, Colorado, United States
$85k-$95k/yr HybridFull Time
University of Colorado
University of Colorado: Public research university providing higher education and healthcare services.
2+ YOESenior developer for identity and access management; design, develop, and support secure, multi‑system web apps with identity/authentication integrations.
ASP.NET, NodeJS, MVC, TypeScript, Angular, Vue, React, MySQL, Oracle, MSSQL Server, Java, Python, Ruby, C#
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2mo
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Senior Ground Software Engineer, Space
Colorado Springs or Costa Mesa
$165k-$218k/yr OnsiteFull Time
Anduril Industries
Anduril Industries: Defense technology building autonomous military hardware and software.
8+ YOESenior software engineer with 8+ years in languages like Java, Python, C++, Rust; Space C2 experience; clearance eligibility; strong communication.
Go, Rust, C++, Kubernetes, OpenShift, Helm, Python, Java, JavaScript
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2w
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Software Engineer: Full Stack - Python, Java or JavaScript/TypeScript (TS/SCI Clearance Required)
Alexandria or Chantilly or Englewood or Gaithersburg or Saint Louis or Tucson
OnsiteFull Time
North Point Technology
North Point Technology: Technology services and engineering for federal government missions.
Active TS/SCI clearance with polygraph ability, Bachelor's in CS or related, proficiency in Python/Java/JavaScript/TypeScript, cloud (AWS/Azure), containers, CI/CD, databases, and secure coding practices.
Python, Java, JavaScript, TypeScript, HTML, CSS, JSON, AJAX, REST APIs, React, Angular, Vue.js, Node.js, Spring Boot, Django, Flask, AWS, Azure, MySQL, PostgreSQL, SQL Server, Linux, Windows, Git, GitLab CI, Jenkins, JIRA, Confluence, Docker, Kubernetes, RMF, STIGs, Go, OpenSearch, Elasticsearch, S3, EC2, SQS, SNS, RDS, CloudFormation, Terraform, Ansible, GeoServer, PostGIS, OGC APIs, ESRI ArcGIS
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1mo
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Senior Software Engineer
Colorado Springs, Colorado, United States
$120k-$160k/yr OnsiteFull Time
SAIC
SAICNYSE: SAIC: Provides engineering, IT, and mission support services to government.
5+ YOEBachelor's degree and 5+ years' experience, active Secret clearance, experience with C/C++, Java, Python, FORTRAN, and Agile development; ability to develop, test, and deploy software for radar systems.
C/C++, Java, Python, FORTRAN, Agile
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2w
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Senior Software Engineer
Colorado Springs, Colorado, United States
HybridFull Time
SAIC
SAICNASDAQ: SAIC: Provides government and defense clients with technology and engineering services.
5+ YOEBachelor's degree with 5+ years' experience, active Secret clearance, experience with C/C++, Java, Python, FORTRAN, and Agile development; real-time embedded and leadership experience desired.
C/C++, Java, Python, FORTRAN
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1mo
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Senior Software Engineer
Arlington or Woburn or Carlsbad or Aurora or Boston or Dayton or Melbourne
$140k-$170k/yr HybridFull Time
Systems & Technology Research
Systems & Technology Research: Develops advanced technology for national security and defense applications.
5+ YOEProven Java and Spring development experience, microservices and API design, containerized infrastructure (Docker/Kubernetes), experience with Kafka/NATS and GitLab, Python for AI/data integration, and ability to obtain Top Secret clearance.
Java, Spring Boot, Linux, Docker, Kubernetes, Kafka, NATS, GitLab, Python
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2w
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Senior Software Engineer
Colorado Springs or Beavercreek Township
$116k-$174k/yr OnsiteFull Time
KBR
KBRNYSE: KBR: Provides engineering, technology, and professional services for global markets.
5+ YOEActive U.S. Top Secret/SCI clearance,5+ years software development,4+ years Java or Python,experience with distributed/high-throughput systems,BS in a technical field,mentoring and architecture experience.
Java, Python, MIL-STD-6016, MIL-STD-3011, TDD, CI/CD
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1mo
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Senior Software Engineer
San Francisco or Denver
$150k-$200k/yr HybridFull Time
SquareTrade
SquareTradeNYSE: ALL: Extended warranty and protection plans for consumer electronics.
5+ YOEBachelor's in CS required, 5+ years professional software development, strong Python/Java/Spring Boot/Kafka skills, generative AI exposure, TDD and pair-programming experience, PostgreSQL, GitHub, Jenkins, cloud (AWS/Microsoft Azure).
Python, Java, Spring Boot, Kafka, ChatGPT, Gemini, Retrieval-Augmented Generation (RAG), AWS, Microsoft Azure, CI/CD, Test-Driven Development (TDD), PostgreSQL, GitHub, Jenkins, Angular, JavaScript, CSS, Docker, Kubernetes, microservices
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1mo
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Senior Integration Engineer
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 or United States
$160k-$220k/yr RemoteFull Time
Slingshot Aerospace
Slingshot Aerospace: Software and data analytics for space operations management.
7+ YOE7+ years software development, 3+ years tech lead experience, bachelor’s in CS/engineering, experience with Java/Kotlin, Python, GraphQL, REST, Docker, React, TypeScript, cloud (Azure/AWS), Kubernetes, Git/GitHub Actions, Kafka; active TS/SCI clearance; travel up to 10%.
Java, Kotlin, Python, GraphQL, REST, Docker, React, TypeScript, Azure, AWS, Kubernetes, Git, GitHub Actions, Kafka, CloudEvents, PostgreSQL, MongoDB, Neo4j, Three.js, HLA, DIS
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1mo
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Senior Software Engineer (Big Data)
Westminster, Colorado, United States
$89k-$165k/yr HybridFull Time
Publicis Groupe
Publicis GroupeEuronext Paris: PUB: Global communications, advertising, and digital transformation holding.
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
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1mo
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Senior Software Engineer
Westminster, Colorado, United States
$89k-$165k/yr OnsiteFull Time
Publicis Groupe
Publicis GroupeEuronext Paris: PUB: Global advertising and digital transformation agency holding.
5+ YOE5+ years building scalable, distributed data solutions; proficient in Scala/Python/Java, Apache Spark, Databricks, AWS, SQL; experience with Hadoop/Hive, containerization, Airflow/MWAA, Git; BA/BS in CS or related.
Python, Apache Spark, Databricks, Scala, Java, Hadoop, Hive, AWS, Kubernetes, Docker, MWAA, Airflow, Git, SQL, Delta Lake, Unity Catalog, Databricks Notebooks, Databricks Jobs, Databricks Pipelines
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1mo
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Senior Software Engineer
Colorado Springs, Colorado, United States
$120k-$185k/yr OnsiteFull Time
GXM Technologies
GXM Technologies: Delivering rapid software solutions and innovation for defense organizations.
8+ YOEU.S. citizen with active TS/SCI clearance, Bachelor's in CS/SE/IS/Engineering, 8+ years software engineering experience, RESTful APIs, microservices, cloud-native, Java/Python/C#/JavaScript, Agile/DevSecOps experience.
Java, Python, C#, JavaScript, Kubernetes, RESTful APIs
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2mo
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Senior Site Reliability Engineer
Denver, Colorado, United States
$160k-$200k/yr HybridFull Time
Kharon
Kharon: A leading risk analytics providing sanctions compliance and trade controls solutions.
7+ YOE7+ years in infrastructure/DevOps/SRE; AWS, Kubernetes, Terraform; CI/CD with GitHub Actions; Python or Java; observability; security and networking knowledge.
AWS, Kubernetes, Terraform, GitHub Actions, Helm, ArgoCD, Datadog, Prometheus, Python, Java, Cloudflare, Cloudsmith
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1mo
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Senior Software Engineer
Warrenton or State College or Augusta or Centennial
$150k-$200k/yr OnsiteFull Time
Altamira Technologies
Altamira TechnologiesNYSE: PSN: Provides data analytics and engineering for national security missions.
Strong Java and JavaScript/TypeScript skills required; Bachelor's in CS/CE/EE or related; experience with full-stack development, containers, Kubernetes, REST, and related tooling; Top Secret clearance required.
Java, Python, JavaScript, TypeScript, Angular, React, Elasticsearch, ELK stack, Redis, Web Services (REST), Docker, LXC, Kubernetes, Helm, Machine Learning, Data Analytics, Android, NoSQL, SQL, Xmidas
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1mo
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Attune - Senior Software Engineer
Dallas or Denver or New York City or Omaha or United States
$139k-$170k/yr RemoteFull Time
Method Insurance
Method Insurance: Provides specialized workers' compensation insurance and risk management services.
5+ YOE5+ years professional software engineering experience; expert in JavaScript/TypeScript; experience with Python, Java, or Go preferred; strong CS fundamentals; experience with Git, CI/CD, Docker, Kubernetes, and cloud (AWS).
JavaScript, TypeScript, Python, Java, Go, Git, Docker, Kubernetes, Terraform, AWS, CI/CD
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Senior Application Developer
Denver or St. Louis or Sterling or Springfield
$75k-$158k/yr OnsiteFull Time
CACI
CACINYSE: CACI: Provides information technology and professional services to government clients.
8+ YOEBachelor's or equivalent,8+ years software development experience,expertise in Java and/or Python,REST APIs,relational and non-relational databases,CI/CD and Git,TS/SCI clearance with polygraph required.
Java, Python, ArcGIS, GeoServer, OpenLayers, Cesium, Kubernetes, AWS, Git, CI/CD
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1w
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Senior R&D Software Engineer, Fivetran AI
Denver, Colorado, United States
$164k-$197k/yr HybridFull Time
Fivetran
Fivetran: Automates data movement into cloud data warehouses.
5+ YOE5+ years programming with Python and/or Java, experience with SQL and data warehouses, full-stack development, research-to-production prototyping, SRE/on-call responsibilities, and product-focused engineering.
Python, Java, SQL, dbt, Claude, ChatGPT, Gemini, vector databases, BigQuery, Snowflake, Databricks, MCP protocol, React, TypeScript, Postgres, Kubernetes, Docker, AWS, GCP
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1mo
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Software Engineer Senior - Secret Clearence
Colorado Springs, Colorado, United States
$93k-$186k/yr OnsiteFull Time
Lockheed Martin
Lockheed MartinNYSE: LMT: Designs and manufactures global security and aerospace systems.
Active Final Secret clearance and US passport, 8140-compliant certification (e.g., Security+), proficiency in Python/Java/Bash/Powershell, CI/CD (GitLab, Jenkins), Git, REST API, DevOps/automation, and strong communication skills.
GitLab, Jenkins, GitLab CI, Git, Python, Java, Bash, Powershell, REST API, Ansible, Terraform, CloudFormation, VMware Aria, Docker, Kubernetes, AWS, Azure, GCP, JavaScript, React, TypeScript, HTML, CSS, Microsoft PowerPoint, Microsoft Visio
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