275 javascript engineer jobs at 133 companies in Loveland, CO

PromotedHiringCafe
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
1mo
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Senior JavaScript Web Developer
Fort Collins, Colorado, United States
$118k-$176k/yr HybridFull Time
Schneider Electric
Schneider ElectricEuronext Paris: SU: Provider of energy management and industrial automation solutions.
8+ YOE8+ years software engineering experience, BS/MS in CS or related field, deep React and TypeScript expertise, experience with HTML/CSS, Microsoft Azure, .NET/C#, RESTful APIs, architecture leadership, and delivering scalable web applications.
React, TypeScript, HTML, CSS, Microsoft Azure, .NET developer tools, C#, Esri GIS, ArcGIS Pro, Maps.SDK, RESTful APIs
2mo
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Javascript - Senior Developers - AI Training - Denver, USA
Denver, Colorado, United States
$50/hr RemoteContract, Part Time
Prolific
Prolific: Platform connecting researchers and AI developers with verified participants.
BS/MS/PhD in CS or related field, professional experience building scalable web apps with JavaScript/TypeScript, ability to solve LeetCode Medium–Hard, deep knowledge of event loop, closures, prototypal inheritance, async patterns, and testing/tools proficiency.
JavaScript (ES6+), TypeScript, React, Node.js, Vue, Angular, Jest, Cypress, Webpack, Vite, GraphQL, RESTful APIs, LeetCode
3mo
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Full Stack Engineer - Python & JavaScript
Denver, Colorado, United States
$136k-$204k/yr OnsiteFull Time
FareHarbor
FareHarbor: Provides booking and business management software for tour operators.
2+ YOE2+ years in production codebase; proficient in JavaScript and Python; experience with AngularJS and Django; scalable, relational DB knowledge; problem solving and user focus; fast-paced startup environment.
JavaScript, Python, AngularJS, Django, Relational Databases
1mo
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Engineer Senior - Digital Test Developer
Westminster, Colorado, United States
$97k-$165k/yr HybridFull Time
BAE Systems
BAE SystemsLondon Stock Exchange: BA: Provides advanced defense, aerospace, and security technology solutions.
4+ YOEBS in Engineering + 4+ years related experience (or equivalent), ability to obtain Top Secret/SCI, experience with JavaScript, Gitlab, CI/CD, Linux, Agile, systems integration & testing, and strong communication skills.
JavaScript, Gitlab, CI/CD, Linux, Agile
1w
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Digital Engineer (Systems Engineering) (Onsite)
Aurora, Colorado, United States
$87k-$165k/yr OnsiteFull Time
RTX
RTXNYSE: RTX: Provides advanced aerospace and defense systems and services.
5+ YOERequires BS in STEM and 5+ years engineering experience, active transferable TS/SCI CI Poly clearance, MBSE experience with CAMEO/MagicDraw/EA, programming in C++, JavaScript, or Python.
C++, JavaScript, Python, Cameo Systems Modeler, CAMEO, MagicDraw, EA
1mo
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Test Automation Engineer
Boulder, Colorado, United States
$113k-$168k/yr OnsiteFull Time
SciTec
SciTec: Provides advanced remote sensing and missile defense technology solutions.
5+ YOEBachelor's in a technical field, 5+ years test automation/software/systems engineering, experience with Python or JavaScript, API/microservices testing, Linux, Git, CI/CD, and ability to obtain/maintain a DoD security clearance.
Python, JavaScript, Linux, Git, GitLab CI, Jenkins, Docker, Kubernetes, OpenShift
1mo
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Engineer I - Systems - Digital Ecosystem
Broomfield, Colorado, United States
$65k-$110k/yr HybridFull Time
BAE Systems
BAE SystemsLondon Stock Exchange: BA: Provides advanced defense, aerospace, and security technology solutions.
BS in engineering or related field required, entry-level; must be a U.S. person and able to obtain Top Secret/SCI; interest/experience in MBSE, SysML/UML, AI, scripting (Python/Java/JavaScript), data integration, and strong communication skills.
MBSE, SysML, UML, Python, Java, JavaScript, APIs
3w
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Senior Data Engineer
United States or Denver or London or Amsterdam or North America or Europe
$145k-$160k/yr RemoteFull Time
SRS Acquiom
SRS Acquiom: Provides technology and services for M&A and loan transactions.
6+ YOE6+ years experience with SQL and relational databases, experience with AWS data services and building data platforms, proficiency in Java/JavaScript/Python, strong communication and security/compliance awareness.
SQL, PostgreSQL, MySQL, PL/pgSQL, S3, RDS, Managed Streaming Kafka, Lake Formation, Glue, Glue Data Catalog, Athena, Quicksight, DataZone, Java, JavaScript, Python, Docker, Kubernetes, CI/CD, Terraform, NetSuite, Salesforce, Workday, Pendo, Grafana, Kibana, Elasticsearch, Open Telemetry, Boomi
1w
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Senior Site Reliability Automation Engineer
Raleigh or Denver
HybridFull Time
Litera
Litera: AI-powered document and workflow software for legal professionals.
7+ YOE7+ years in SRE/DevOps/platform engineering; strong software development in Python, PowerShell, TypeScript, JavaScript, Java, or C#; experience with CI/CD, AWS and/or Microsoft Azure, production troubleshooting, root cause analysis, and automation.
Python, PowerShell, TypeScript, JavaScript, Java, C#, CI/CD pipelines, AWS, Microsoft Azure, Datadog, Dynatrace, Splunk, New Relic, Azure Monitor, Amazon CloudWatch
1mo
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Site Reliability Engineer
Denver, Colorado, United States
$95k-$136k/yr OnsiteFull Time
RingCentral
RingCentralNYSE: RNG: Sells cloud-based business phone and video conferencing software.
6+ YOE6+ years SRE experience, deep Linux knowledge, cloud platform and config-management experience, Kubernetes, Kafka, SQL/NoSQL familiarity, programming (Python/JavaScript/Java) and observability experience; participate in on-call rotation.
Linux, Python, JavaScript, Java, Bash, Go, AWS, Azure, GCP, Kubernetes, Kafka, ELK stack, Zabbix, Prometheus, Alertmanager, Grafana, VictoriaMetrics, MongoDB, PostgreSQL, MySQL, Ansible, Terraform, ArgoCD, GitLab CI, Jenkins, GitLab, Nginx
1w
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Quality Assurance Engineer
Denver, Colorado, United States
$110k-$125k/yr RemoteFull Time
Trilon Group
Trilon Group: Providing engineering and design services for community infrastructure.
4+ YOE4+ years QA experience, strong test automation skills for API/backend/UI, proficiency in Python or JavaScript, CI/CD and REST testing, experience evaluating AI/LLM outputs and RAG pipelines, strong communication and analytical skills.
Python, JavaScript, CI/CD, API, REST, LLM, Retrieval-Augmented Generation (RAG)
3w
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Journeyman Integration Test Engineer
Aurora, Colorado, United States
$80k-$136k/yr HybridFull Time
ASRC Federal
ASRC Federal: Provides engineering and IT services to federal government agencies.
6+ YOE6+ years in software verification/validation or system integration testing; experience with Zephyr Scale, Cucumber or Cypress, Python or JavaScript; Bachelor's in a technical discipline; ability to obtain NOAA Public Trust/Secret clearance.
Zephyr Scale, OS/COMET, GMAT, Cucumber, Cypress, Python, JavaScript
3mo
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Electrical Engineer - Boulder, CO
Boulder, Colorado, United States
$93k-$125k/yr OnsiteFull Time
Xerox
XeroxNASDAQ: XRX: Sells printing hardware, digital document software, and managed IT services.
5+ YOEBS in Electrical Engineering; 5+ years industrial or process engineering; strong problem-solving; travel; LEAN/Six Sigma; cross-functional collaboration.
C++, JavaScript, PID control, Electrical schematics, P&IDs, VFD, Industrial communication, Ethernet
2w
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Spacecraft Data Systems Engineer - Blue Ring
Reston or Huntsville or Denver or Seattle or Los Angeles
$134k-$203k/yr OnsiteFull Time
Blue Origin: Develops reusable rockets and systems for human spaceflight.
8+ YOEB.S. in computer science/engineering/IT/applied math, 8+ years spacecraft development and operations, experience with Command & Telemetry Databases and CCSDS, proficiency in Java/Python/JavaScript/C/C++, familiarity with flight software and C2 tools, ability to work with cross-functional teams; U.S. work authorization required.
CCSDS, Java, Python, JavaScript, C, C++, Command and Telemetry Database (CTDB), Command and Control (C2), Flight Software (FSW), Jira, GitLab, CI/CD pipelines, Defense Biometric Identification System (DBIDS)
2w
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Forward Deployed Software Engineer
Charlotte or Denver
$75k-$95k/yr HybridFull Time
Flagship Specialty Partners
Flagship Specialty Partners: Provides administrative and operational support to oral surgery practices.
0+ YOE0–2 years experience or strong portfolio; strong data fundamentals (data modeling, SQL, ETL); JavaScript/TypeScript + React and Git familiarity; strong quality-control judgment and ability to direct/verify AI coding agents.
Perplexity Computer, Claude Code, JavaScript, TypeScript, React, Vite, Express, Tailwind, Drizzle, SQLite, DuckDB, Docker, GitHub Actions, Fly.io, Git, SQL
1mo
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Senior Controls Engineer
Boulder or Jefferson County
$100k-$175k/yr OnsiteFull Time
Electra
Electra: Decarbonizing iron production through low-temperature electrochemical refining technology.
8+ YOEBachelors in electrical/control/automation engineering, 8+ years controls and data-acquisition experience, PLC programming (Siemens preferred), instrumentation, industrial electrical design, safety practices, and proficiency with Microsoft Office and SQL.
Siemens S7 (TIA Portal), Ignition, SolidWorks Electrical, SQL, Modbus, Profibus, Ethernet, RS485, C, C++, C#, Python, Javascript, Microsoft Word, Microsoft Excel, Microsoft PowerPoint, Microsoft Outlook, Microsoft OneDrive, Microsoft SharePoint
4w
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Full Stack Software Engineer
Aurora or Philadelphia
$82k-$172k/yr OnsiteFull Time
CACI International
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
5+ YOEBachelor's in CS or related, TS/SCI with Polygraph required, 5+ years OO experience (Python focus), 2+ years JavaScript/TypeScript, SDLC and microservices experience, API development, unit/integration testing, Agile, ability to work onsite full time.
Python, JavaScript, TypeScript, AWS, Azure, Kubernetes, React, Angular, Git, GitLab, Jira, Confluence
1mo
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Software Developer / Engineer
Sterling or Denver
$82k-$172k/yr OnsiteFull Time
CACI
CACINYSE: CACI: Provides information technology and professional services to government clients.
3+ YOEIn-person work at Sterling, VA or Denver, CO; TS/SCI with poly; Bachelor's in STEM or related; 3+ years software development; backend (Java) or frontend; Linux; containers/microservices; agile Kanban; willing to obtain security certification.
Java, Spring, JavaScript, TypeScript, Vue, Bootstrap, Mockito, JUnit, Cypress, PostgreSQL, MySQL, Redis, AWS DynamoDB, AWS, Git, Jira, Confluence, GitLab CI/CD, SonarQube, Fortify, Docker, Kubernetes
1mo
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Technical Solutions Engineer
Denver, Colorado, United States
$71k-$137k/yr HybridFull Time
Arista Networks
Arista NetworksNYSE: ANET: Provides cloud networking solutions and high-speed multilayer Ethernet switches.
4+ YOE4+ years network engineering/support experience, MS in a technical field required, strong networking protocol knowledge, experience with packet tools (IXIA, tcpdump, Wireshark), Linux comfort, scripting/programming a plus, excellent communication.
IXIA, tcpdump, Wireshark, Linux, C++, Java, Python, Perl, JavaScript, shell
12h
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Staff Site Reliability Engineer
Portland or Denver
$148k-$193k/yr HybridFull Time
DAT Freight & Analytics: Software platform for freight matching and logistics data analytics.
10+ YOE10+ years industry experience, 3+ years software engineering, cloud and observability expertise (Datadog,AWS), Kubernetes, IaC (Terraform), on-call experience, leadership and incident response skills.
JavaScript, Python, Go, Java, Kotlin, C++, Datadog, AWS, Kubernetes, ArgoCD, Terraform, Github Actions