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63 junior java developer jobs at 28 companies in Lakewood, CO

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Founding Full-stack / Product Engineer
Cupertino, CA, US
$130k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Help us build a 100× better job search engine. We need a full-stack engineer with great taste, sharp fundamentals, and a track record of shipping polished product on React/Next.js plus a real backend (Firebase, Elasticsearch, Redis, Stripe).
React, Next.js, TypeScript, Firebase, Elasticsearch, Redis, Stripe
Help us #BeatIndeed & #BeatLinkedIn
3w
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Junior Software Engineer
Denver or Springfield or Sterling or St. Louis
$69k-$142k/yr OnsiteFull Time
CACI International
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
0+ YOEBachelor's in CS or related, 0–3 years software development experience, Java and/or Python, web app and relational DB familiarity, Agile/SDLC knowledge, strong problem solving, TS/SCI clearance with polygraph.
Java, Python, GIS, ArcGIS, GeoServer, OpenLayers, Cesium
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2w
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Junior Software Engineer
Warrenton or State College or Fort Eisenhower or Centennial
$95k-$140k/yr OnsiteFull Time
Altamira Technologies
Altamira TechnologiesNYSE: PSN: Provides data analytics and engineering for national security missions.
Bachelor's in CS/CE/EE required. Strong Java and JavaScript/TypeScript skills required. Experience with full-stack technologies (Python, Angular, React, Elasticsearch, containers, Kubernetes) preferred. Top Secret clearance required.
Java, Python, JavaScript, TypeScript, Angular, React, Elasticsearch, ELK Stack, Redis, REST, Docker, LXC, Kubernetes, Helm, Machine Learning, Data Analytics, Android, NoSQL, SQL, Xmidas
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3w
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Junior Software Engineer
Denver or St. Louis or Sterling or Springfield
$69k-$142k/yr OnsiteFull Time
CACI
CACINYSE: CACI: Provides information technology and professional services to government clients.
0+ YOEBachelor's in CS/Software/IS required; 0–3 years software development experience; experience with Java and/or Python; familiarity with web development, relational databases, SDLC/Agile; TS/SCI clearance with polygraph; up to 10% travel.
Java, Python, ArcGIS, GeoServer, OpenLayers, Cesium
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2mo
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Software Engineer
Aurora, Colorado, United States
$69k-$158k/yr OnsiteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Provides technology and management consulting services to diverse organizations.
2+ YOE2+ years in software development; experience with Java, Python, Rust, or Go; microservices; TS/SCI clearance; bachelor's degree.
Java, Python, Rust, Go, Linux, Docker, Kubernetes, AWS, Azure, Google
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1w
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Software Engineer II
Lone Tree or Sparks or Longmont or Hagerstown or Herndon or Englewood
$94k-$130k/yr HybridFull Time
Sierra Nevada Corporation
Sierra Nevada Corporation: Develops mission-critical aerospace and national security technology systems.
2+ YOEBachelor's in CS or related,2+ years software development experience,proficiency in C++,Java,Python,knowledge of engineering principles,ability to work in multidisciplinary teams.
C++, Java, Python, C, C#, HTML, Bash, RTOS, AI/ML
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2mo
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Software Engineer 1
Boulder, Colorado, United States
$95k-$105k/yr OnsiteFull Time
Garmin
GarminNYSE: GRMN: Designs and manufactures GPS-enabled navigation and wearable technology products.
Bachelor’s degree in CS, EE, CE, SE, AE, Math, Physics or related field or equivalent; GPA 3.0+; knowledge of C/C++/C#/Java; basic software development.
C, C++, C#, Java, Assembly Language
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1mo
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Software Engineer
Westminster, Colorado, United States
$74k-$137k/yr HybridFull Time
Publicis Groupe
Publicis GroupeEuronext Paris: PUB: Global communications, advertising, and digital transformation holding.
1+ YOEBA/BS in CS, 1-3 years big-data/software development; proficient in Scala, Python, or Java; strong Apache Spark and Databricks experience preferred; AWS and modern data tooling (Kubernetes, Docker, Airflow) experience.
Scala, Python, Java, Databricks, Apache Spark, Hadoop, Hive, Kubernetes, Docker, MWAA, Airflow, AWS, Git, SQL, Delta Lake, Unity Catalog
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2d
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Software Engineer II
Denver, Colorado, United States
$70k-$109k/yr OnsiteFull Time
CONMED
CONMEDNYSE: CNMD: Manufacturer of surgical instruments and patient monitoring medical devices.
2+ YOEBS in computer or electrical engineering,2+ years Java/C/C++ software development in embedded or regulated environments,component ownership,unit/integration test and verification,secure coding,strong communication.
Java, C, C++, SQL, Python, MATLAB, Ruby, R
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1mo
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Software Engineer
Westminster, Colorado, United States
$74k-$137k/yr OnsiteFull Time
Publicis Groupe
Publicis GroupeEuronext Paris: PUB: Global advertising and digital transformation agency holding.
1+ YOE1-3 years developing scalable, distributed data solutions using Scala/Python/Java and Apache Spark; Databricks and AWS experience preferred; SQL, Git, and data engineering best practices required; BA/BS in CS or related.
Scala, Python, Java, Apache Spark, Databricks, Delta Lake, Unity Catalog, Hadoop, Hive, AWS, Kubernetes, Docker, MWAA, Airflow, Git, SQL
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3w
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Software Engineer II (Onsite)
Aurora, Colorado, United States
$69k-$131k/yr OnsiteFull Time
RTX
RTXNYSE: RTX: RTX provides advanced aerospace and defense systems and services.
2+ YOEBachelor's in STEM and 2 years' relevant experience, experience developing object-oriented Java with multi-threading, active transferable TS/SCI or Top Secret clearance, U.S. citizenship required.
Java, AWS, Docker, Kubernetes, Confluence, Eclipse, Jira, Jenkins, JUnit, Kafka, Spring Boot
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1mo
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Ground Software Engineer
Littleton, Colorado, United States
$77k-$135k/yr OnsiteFull Time
Lockheed Martin
Lockheed MartinNYSE: LMT: Designs and manufactures global security and aerospace systems.
1+ YOEActive TS/SCI clearance, BS degree, 1+ years software engineering experience; strong software development background with Agile/DevSecOps practices and experience with Java, C#, Rust, Python, cloud/containerization, and distributed systems.
Java, C#, Rust, Angular, Python, Apache Kafka, Apache ActiveMQ, ELK Stack/OpenSearch, PostgreSQL, Redis, Helm, Kubernetes, Git, DevSecOps, CI/CD
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2w
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Software Engineer
Woburn or Arlington or Carlsbad or Aurora
$110k-$138k/yr HybridFull Time
Systems & Technology Research
Systems & Technology Research: Develops advanced technology for national security and defense applications.
2+ YOEBS/MS in CS or related; 2+ years building maintainable APIs and Java-based software; experience with microservices, DevSecOps, and collaborating with scientists; U.S. citizenship and ability to obtain Top Secret clearance required.
Java 17, Spring Boot, Linux, Docker, Kubernetes, Kafka, NATS, GitLab, Python
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1mo
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Software Engineer
Denver, Colorado, United States
$83k-$138k/yr OnsiteFull Time
PNC Financial Services
PNC Financial ServicesNYSE: PNC: Provides banking, lending, and investment services to customers.
2+ YOE2+ years relevant experience typical; proficiency in Java, ETL (Informatica), APIs (SOAP/REST), message queues; Ansible, Linux shell or Python scripting; production incident support and clear technical communication. Bachelor’s degree required.
Java, Informatica, ETL, APIs, SOAP, REST, message queues, Ansible, Linux shell, Python
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4w
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Software Engineer I
Vancouver or Denver
$71k-$88k/yr OnsiteFull Time
Ping Identity
Ping Identity: Provides identity and access management software for enterprise security.
Strong Java skills, knowledge of HTTP and TLS, familiarity with IDEs, git, Jenkins, Maven and ClaudeCode; experience with testing, Spring, React/Redux, databases, Docker/Kubernetes; strong communication and problem-solving.
Java, HTTP, TLS, IDEs, git, Jenkins, Maven, ClaudeCode, React, Redux, JavaScript, Spring, Jackson, JDBC, SQL, Hibernate, Netty, Docker, Kubernetes, Helm
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1mo
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Software Engineer
Denver, Colorado, United States
OnsiteFull Time, Internship
Connexta
Connexta: Develops open-source software and data interoperability solutions for intelligence.
Bachelor's degree in CS or related field; software development across Mac/Windows/Linux; ability to learn new technologies; U.S. Citizenship.
Java, OSGi, Karaf/ServiceMix, Camel, ActiveMQ, Cassandra, Lucene/Solr, SoapUI, Enterprise Integration standards (WS-*), GeoTools, JavaScript, HTML5, CSS3, Less/Sass, Backbone, Marionette, React, Redux, Bootstrap, Handlebars, Cesium, Ozone Widget Framework (OWF), Ozone Platform (OZP), Grunt, Bower, NPM, WebPack, XML, XSD, XSLT, XPath, XQuery, Geospatial (OGC), CometD, WebSockets, Agile, Scrum processes or tools, Eclipse/IntelliJ, Maven, JUnit, CXF SOAP and REST web services, Git/Stash, JIRA, Confluence, Crucible, Jenkins, SonarQube
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2w
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Senior Android Engineer - TrainingPeaks
Louisville, Colorado, United States
$111k-$185k/yr HybridFull Time
Peaksware
Peaksware: Develops software for athletic and musical performance improvement.
2+ YOE2+ years building complex Android apps using Java/Kotlin, experience with testing (unit/integration/e2e/TDD), reactive frameworks (RxJava/Kotlin Flow), DI (Dagger/Koin/Hilt), Retrofit/Ktor, Google Play releases, strong communication.
Java, Kotlin, Android, RxJava, Kotlin Flow, Dagger, Koin, Hilt, Retrofit, Ktor, Google Play Store, Crashlytics, Jetpack Compose, Apple Watch, Garmin, React Native, JavaScript, TypeScript
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1mo
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Software Engineer Level 2 or 3
Aurora, Colorado, United States
$92k-$171k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Designs and manufactures advanced aerospace and defense systems.
2+ YOEActive Top Secret/SCI clearance, Java and Git proficiency, Kubernetes/Helm and database experience (Elastic, Mongo, or MySQL); Level 2: 2+ years software experience; Level 3: 5+ years (or equivalent degree/experience).
Java, Git, Kubernetes, Helm, Elastic, Mongo, MySQL, Wiki, Microsoft SharePoint, Agile, Scrum
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1mo
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Scientific Software Developer, Data Foundry
San Diego or San Francisco or South San Francisco or Boston or Louisville or Indianapolis
OnsiteFull Time
Eli Lilly and Company
Eli Lilly and CompanyNYSE: LLY: Researches and manufactures medicines for human health.
1+ YOEBS/MS in a relevant STEM field; 1+ (MS) or 3+ (BS) years scientific software development; proficiency in Python and another language, SQL, cloud and container experience; authorized to work in the US (no visa sponsorship).
Python, Java, C#, Go, TypeScript, C, C++, SQL, Postgres, Redshift, Snowflake, BigQuery, AWS, Azure, GCP, Kubernetes, Docker, Prefect, Airflow, Nextflow, WDL, Git, RDKit, Schr\u0000dinger, MOE, Biopython, Bioconductor, SciPy, NumPy, Benchling, LIMS, ELN, OPC-UA
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3w
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EY-Parthenon - Strategy and Execution - Growth Platforms - Software Engineer - Sr Assoc/Consultant (New York, NY, US, 10001-8604)
New York or Atlanta or Boston or Chicago or Dallas or Denver or Detroit or Houston or Los Angeles or McLean or Hoboken or Philadelphia or San Francisco or Seattle
$130k-$185k/yr HybridFull Time
EY
EY: Global firm providing audit, tax, and professional consulting services.
1.5+ YOEBachelor's degree plus ~2 years related experience (or graduate degree plus ~18 months). Experience with backend/full‑stack development (Python, Java, Scala, TypeScript), cloud (AWS/GCP), containerization, IaC, LLM integration, and productionizing AI tooling; strong communication and client‑facing skills.
Python, Java, Scala, TypeScript, AWS, GCP, Microsoft Copilot
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3d
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Software Engineer
Aurora, Colorado, United States
$81k-$142k/yr OnsiteFull Time
General Atomics Aeronautical Systems
General Atomics Aeronautical Systems: Designs and manufactures unmanned aircraft and radar systems.
2+ YOEBachelor's in CS or related (or equiv experience), minimum 2 years software development, Java, AWS, Docker, Kubernetes, helm/helmfile, Linux, strong math and networking knowledge, ability to obtain/hold Top Secret/SCI with CI Poly.
Java, AWS, Docker, Kubernetes, helm, helmfile, Linux
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