24 back end javascript developer jobs at 8 companies in Colorado

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Senior Backend Software Engineer
Denver, Colorado, United States
$150k-$190k/yr HybridFull Time
Volley Automation
Volley Automation: Automated robotic parking systems for space-constrained locations.
BS in CS or related required (MS preferred). Strong backend development experience with Python/JavaScript, web services, cloud platforms (AWS/GCP/Azure), databases, Git and CI/CD. Must be able to work on-site or in the field at least 3 days/week.
AGVs, ROS2, ROS, Linux, IoT, PLCs, AWS, GCP, Azure, Python, JavaScript, Django, Flask, Next.js, Express.js, Git, CI/CD, MQTT, ECR, S3, EC2, React, TypeScript, iOS, Android
2w
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Backend Python Developer
Salt Lake City or Utah or Virginia or Tennessee or California or Texas or Florida or Nevada or Colorado or Idaho or Arizona
$85k-$95k/yr OnsiteFull Time
NetCyberOps
NetCyberOps: Provides 24/7 managed detection, response, and cybersecurity services.
1+ YOE1+ years professional Python API experience with Flask, database and query experience (PostgreSQL), testing, Git/CI, strong API design and security awareness.
Python, Flask, PostgreSQL, Git, Docker, Celery, Redis, React, JavaScript
3w
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Graduate Developer
Farmington Hills or Rosemont or Pennsylvania or Houston or Dallas or Golden
HybridFull Time
GHD
GHD: Global professional services firm specializing in engineering and architecture.
0+ YOEBachelor's degree required, 0-2 years developer experience, proficiency in JavaScript and Python, front- or back-end development, data visualization and manipulation skills.
Javascript, Python, Earth Volumetric Studio
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Software Engineer
Colorado Springs or San Diego or Norfolk
$75k-$131k/yr OnsiteFull Time
Parsons
ParsonsNYSE: PSN: Provides engineering and technology services for infrastructure and defense.
3+ YOEInterim Top-Secret clearance required, minimum 3+ years software development experience, bachelor’s in computer science or technical discipline (or equivalent), experience building scalable back-end services and APIs, proficiency with Java/TypeScript/JavaScript, Angular, and PostgreSQL.
Java, TypeScript, JavaScript, Angular, PostgreSQL, Docker, Kubernetes, Kafka, Git, Bitbucket, SAFe, JIRA
6d
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Senior Systems Developer (Angular)
United States or California or Colorado or Illinois or Minnesota or New Jersey or New York or Oregon or Washington
$85k-$117k/yr RemoteFull Time
Syms Strategic Group
Syms Strategic Group: Provides IT and professional services to federal government agencies.
8+ YOE8+ years developing back-end services with Java and/or NodeJS and Angular front-end; experience building RESTful APIs, AWS, Git/GitHub, unit/integration testing; U.S. citizenship and Public Trust eligibility required.
Angular, Java, NodeJS, JavaScript, TypeScript, C#, .Net, AWS, API Gateway, Lambda, S3, CloudWatch, Git, GitHub, JUnit, Jest, Docker, ECS, EKS, JIRA, Microsoft Teams, X12
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Sr. Software Engineer II (Remote - US)
New York City or California or Oregon or Colorado or Texas or Wisconsin or Minnesota or Louisiana or Florida or Virginia or North Carolina or South Carolina or New Jersey or New York or Connecticut or United Kingdom
$130k-$150k/yr RemoteFull Time
TixTrack
TixTrack: Provides cloud-based ticketing and venue management software for venues.
7+ YOE7+ years full-stack SaaS development with .NET Core back-end and modern frontend frameworks (React/Angular/Vue); strong SQL, API, SRE/DevOps appreciation, Agile experience, bachelor’s degree or equivalent.
.NET Core, React, Angular, Vue, HTML, CSS, JavaScript, SQL, Stripe, Microsoft Office, Google Suite, Slack, JIRA
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Engineer Senior - Digital Test Developer
Westminster, Colorado, United States
$97k-$165k/yr OnsiteFull Time
BAE Systems
BAE SystemsLondon Stock Exchange: BA: Provides advanced defense, aerospace, and security technology solutions.
4+ YOEBachelors in engineering (or related) + 4+ years experience; experience in full-stack web/desktop apps, back-end and front-end development, CI/CD and testing; Python and Ruby proficiency; eligible for Top Secret/SCI; U.S. person required.
Python, Ruby, Ruby on Rails, Knockout, Vue, NodeJS, JavaScript, Keycloak, Redis, Traefix, Minio, OpenC3 COSMOS, LabVIEW, Veristand, Linux, Windows, BASH, PowerShell, Docker, Podman, CI/CD, NoSQL, FPGA, VHDL, UART, GPIB, DAQmx, RIO, TCP-IP, USB, Spacewire, 1553
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Senior / Staff Applied Research Software Engineer - Emerging Tech
United States or Colorado or Hawaii or Illinois or Maryland or Massachusetts or Minnesota or Vermont or New York or New Jersey or Washington or California or District of Columbia
$142k-$252k/yr RemoteFull Time
Twilio
TwilioNYSE: TWLO: Cloud communications platform for building customer engagement applications.
3+ YOEBachelor's degree or equivalent, 3+ years (Senior) or 5+ years (Staff) full-stack software development experience, proficiency in JavaScript/Python/Java, front-end (React/Angular) and/or back-end (Node.js/Springboot), SQL/NoSQL, effective communication, and experience leveraging AI/LLMs.
JavaScript, Python, Java, React, Angular, Node.js, Springboot, SQL, NoSQL, AWS, Azure, Model Context Protocol (MCP), LLMs
4d
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Engineer I - Software
Boulder or Broomfield or Westminster
$65k-$110k/yr OnsiteFull Time
BAE Systems
BAE SystemsLondon Stock Exchange: BA: Provides advanced defense, aerospace, and security technology solutions.
BS in engineering or related required; experience with satellite ground systems, ground-system tools, cloud, web services, and back-end/front-end languages; eligible for Top Secret/SCI clearance.
COSMOS, ECLIPSE, OS/COMET, OASIS, AWS, Lambda, Docker, Kubernetes, Spring, Jersey, Flask, CherryPy, Ruby on Rails, JavaScript, Angular, React, JavaFX, Python, Qt, SQL, NoSQL, JPA/ORM, Java, C++, Rust, Ada