Average salary: $114,666 /yearly

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  •  ...following: Build and maintain Foundry, Hardhat, viem, and ethers.js plugins to support ERC-4337: Local test environments UserOperation...  ..., JavaScript, Solidity , familiar with Rust, Go, Node.js, React, Angular, Swift/Kotlin can be a plus. Familiarity with ERC-4337 and... 
    React
    Full time
    Contract work
    Local area
    Remote work
    Flexible hours

    Ethereum Foundation

    Boulder, CO
    2 days ago
  •  ...Develop and maintain a data-heavy web application built in React, optimizing user experience and performance. Bring insight and...  ...using at least one modern front-end framework (React, Vue, or Next.js) Demonstrated ability to build intuitive and high-performance... 
    React
    Full time
    Work experience placement
    Work at office
    Local area
    Flexible hours

    REC

    Boulder, CO
    more than 2 months ago
  • $160k - $210k

     ...CO $125,000.00-$135,000.00 2 weeks ago Senior Software Engineer, Device Management - United States Senior Full Stack Developer (React, Node.js, JS & CSS) AI Developer / Technical PM | 100% Remote Denver, CO $85,000.00-$95,000.00 5 days ago Boulder, CO $90,000.00-$215,00... 
    React
    Full time
    Work at office
    Remote work
    Flexible hours

    Affirm

    Boulder, CO
    2 days ago
  •  ...latest and greatest web standards, including HTML5, CSS3 and ES6 Expertise with the latest web stacks and libraries such as Node.js, Express, React, Redux, and SASS Proven track record of building scalable and responsive web applications using modern front-end stacks... 
    React

    soundhound

    Boulder, CO
    4 days ago
  • $149.65k - $198.65k

     ...years of relevant work experience. Strong proficiency in Java, Node.js, and the Spring Framework, with experience in building and...  ...and technologies. Technologies and practices we use: Java, Spring, React, Redux, Material UI, Tailwind RabbitMQ, Redis Postgres, Grafana,... 
    React
    Temporary work
    Work experience placement
    Flexible hours

    Allegion

    Boulder, CO
    3 days ago
  • $134k - $150k

     ...First Design. Following service-oriented architecture principles, you will build and improve a robust Typescript backend connected to a React frontend. A key focus will be developing the service's ability to deploy and manage virtual cyber training environments in Azure... 
    React
    Local area
    Remote work
    Worldwide
    Flexible hours

    Circadence Corporation

    Boulder, CO
    2 days ago
  • $150k - $180k

     ...generation, scenario guidance, and range analysis. As a full stack engineer, you'll contribute across backend services, API design, and a React-based frontend—helping build a 0-1 new product leveraging the latest technologies. You’ll thrive in this role if you enjoy... 
    React
    Local area
    Remote work

    Circadence Corporation

    Boulder, CO
    14 days ago
  • $190k - $240k

     ...CO $80,000.00-$95,000.00 2 weeks ago Software Engineer II, Backend (Loan Originations & Reporting) Senior Full Stack Developer (React, Node.js, JS & CSS) Front-End Engineer, Accessibility Specialist (Remote) Denver, CO $110,000.00-$180,000.00 4 days ago Denver, CO $140,... 
    React
    Full time
    Work at office
    Remote work
    Flexible hours

    Affirm

    Boulder, CO
    4 days ago
  • $190k - $240k

     ...$105,000.00 - $215,000.00 5 days ago Senior Software Engineer, Device Management - United States Senior Full Stack Developer (React, Node.js, JS & CSS) Denver, CO $150,000.00 - $180,000.00 3 weeks ago Senior Embedded Software Engineer - Linux Boulder, CO $123,000.00 -... 
    React
    Full time
    Work at office
    Remote work
    Flexible hours

    Affirm

    Boulder, CO
    2 days ago
  • $190k - $240k

     ...$105,000.00 - $215,000.00 5 days ago Senior Software Engineer, Device Management - United States Senior Full Stack Developer (React, Node.js, JS & CSS) Denver, CO $150,000.00 - $180,000.00 3 weeks ago Senior Software Engineer, Backend (ML Platform) Senior Software Engineer... 
    React
    Full time
    Work at office
    Remote work
    Flexible hours

    Affirm

    Boulder, CO
    1 day ago
  • Senior Full Stack Software Engineer - React Proven expertise in modern frontend architectures like React Proven expertise in Node.js or similar modern web frameworks Proven expertise with JavaScript (ES6)/CSS/HTML/JSON Experience with modern database technologies (PostgreSQL... 
    React

    TechDigital Group

    Lafayette, CO
    3 days ago
  • $165k - $185k

     ...You’ll thrive here if you know how to build modern, maintainable React systems, enjoy solving UI challenges in graph-based design tools,...  ...codebase using React, TypeScript, and modern libraries (e.g., Next.js, React Router, MUI/Tailwind). Lead the design and... 
    React
    Full time
    Local area

    Circadence Corporation

    Boulder, CO
    more than 2 months ago
  • $92.05k - $121.83k

     ...development practices. Developing native Gutenberg blocks using React and building custom themes and plugins. Creating HTML...  ...and block patterns. ~ Skilled in JavaScript and React (Next.js a plus), along with solid PHP and SQL experience. ~ Familiar... 
    React
    Full time
    Live in
    Local area
    Remote work
    Overseas
    Shift work

    Kanopi

    Boulder, CO
    more than 2 months ago
  • $170k - $260k

     ...cascaded throughout the app for comprehensive critique (thanks, React component system!). But, every company made me pick one —I couldn...  ...512;): TypeScript (frontend & backend), React, GraphQL API, Node.js, Postgres, Redis. When they joined Ashby, many of our engineers... 
    React
    Work at office
    Flexible hours

    Ashby

    Boulder, CO
    20 days ago
  • $115k - $130k

     ...solutioning, estimating, executing, QA, release notes, and clear communication. Build and maintain scalable web experiences using React, TypeScript, Node.js, Tailwind, and modern deployment platforms like AWS Amplify. Collaborate with design, product, marketing, and engineering... 
    React
    Full time
    Remote work
    Monday to Friday

    Resource Label Group

    Longmont, CO
    2 days ago
  • $104.6k - $174.3k

     ...Services architectures, a plus Service Monitoring, Performance tuning and testing tools Web Technologies for UI (React, HTML5, TypeScript, JavaScript, Node.js) Experience with hardware interfaces, including communication over sockets and serial interfaces Considerable... 
    React
    Work at office
    Remote work
    Afternoon shift

    McKesson Corporation

    Longmont, CO
    2 days ago
  • $33 - $36.77 per hour

     ...Here’s how you’ll make an impact on the team: Create high-fidelity interactive prototypes using modern web technologies (e.g., React, TypeScript, HTML, CSS), often leveraging AI-powered tools and generative techniques to accelerate development and explore variations... 
    React
    Contract work

    NextDeavor Inc.

    Boulder, CO
    a month ago
  •  ...such as Terraform and Ansible   ~ Familiarity with Python data visualization libraries   ~ Experience with Typescript and React   ~ Experience implementing monitoring and alerting system using systems like Grafana, Prometheus, or Nagios     Spire operates... 
    React
    Full time
    Work at office
    3 days per week

    Spire

    Boulder, CO
    15 hours ago
  •  ...experience in software engineering, with at least 3 years in an engineering leadership role. A background in Ruby on Rails, Python, React, Postgres, AWS, and OpenSearch/ElasticSearch is essential, with experience in AI/ML being a significant advantage. The role requires... 
    React

    Confidential

    Boulder, CO
    4 days ago
  • $130.5k - $171k

     ...Infrastructure as Code tools such as Terraform and Ansible. Familiarity with Python data visualization libraries. Experience with TypeScript and React. Experience implementing monitoring and alerting systems using tools like Grafana, Prometheus, or Nagios. Spire operates a hybrid... 
    React
    Work at office
    3 days per week

    Spire

    Boulder, CO
    3 days ago
  •  ...DevOps methodologies to streamline delivery and ensure system stability. Develop and maintain scalable frontend components using React and associated technologies. Collaborate cross-functionally with operations, infrastructure, and product teams to deliver end-... 
    React
    Full time
    Work experience placement
    Work at office
    Local area
    Flexible hours

    REC

    Boulder, CO
    more than 2 months ago
  •  ...interesting? Do you: Have at least 4 years of professional experience in full stack software engineering. Experience with Typescript, React, Node, and designing front end frameworks. Bonus points for ML and VS Code extension experience! Possess a strong product sense and... 
    React
    Full time
    Work at office

    MS2 Inc.

    Boulder, CO
    4 days ago
  • $123.8k - $206.3k

     ...systems or ground architectures, especially experience with OPIR sensor processing. ~ Hands-on professional experience with Vue and React. ~ Experience with Agile software development methodology. ~ Experience with tools such as Jira, Confluence ~ Experience with... 
    React
    Full time
    Contract work
    Work experience placement
    Interim role
    Immediate start
    Remote work

    Outside Analytics

    Boulder, CO
    15 hours ago
  •  ...Comfortable with iterating and re-evaluating projects and plans as needs evolve Must Have Qualifications Fluent in JavaScript (React), HTML, CSS, and experience with the NodeJS ecosystem Track record developing high-quality, maintainable, and well-documented web... 
    React
    Full time
    Work experience placement
    Work at office
    3 days per week

    Spire

    Boulder, CO
    15 hours ago
  •  ...multi-threading, NIO, and socket programming. Experience with RESTful web frameworks. Solid frontend skills with along with experience using JavaScript MV* frameworks. Experience with logic-less templating frameworks like Handlebars.js. #J-18808-Ljbffr RTI GROUP, LLC
    Immediate start

    RTI GROUP, LLC

    Boulder, CO
    2 days ago
  •  ...initiative and self-direction for generating sales of products and services in the marketplace. · The ability to understand, quickly react and motivate is a critical key to success, as the projects encounter a variety of tasks and are dynamic and changing.... 
    React
    Contract work
    Local area

    Decorating Den Interiors

    Boulder, CO
    29 days ago
  •  ...minimum previous experience in software development, computer engineering, or other related fields Technical Skills: Back End : Node JS (5 years) + Nest Front End : HTML5/CSS3/Typescript (5 years) + ReactJS (5 years) Systems: Linux, PostgreSQL, AWS (VPC/ECS/EC2/S3/etc)... 

    Huck Adventures

    Boulder, CO
    4 days ago
  • $160k - $180k

     ...and Backend teams to deliver cohesive user experiences. Qualifications 5+ years of experience building exceptional user interfaces. React expertise: strong grasp of data structures, scalable patterns, algorithms, and web performance optimization. Design intuition: deep... 
    React
    Local area
    Remote work

    Jobot

    Boulder, CO
    2 days ago
  •  ...working on AI-powered systems or products. Proficiency in Python and comfort with additional languages such as C#, SQL, or TypeScript/React. Foundational knowledge of or hands-on experience with LLM orchestration frameworks (e.g., LangChain, LlamaIndex, Semantic Kernel)... 
    React
    Local area

    The Trade Desk

    Boulder, CO
    5 days ago
  •  ...services and APIs using Golang and Typescript. Build and maintain frontend components using TypeScript and modern frameworks (e.g., React). Collaborate with product managers, designers, and other engineers to define technical requirements and deliver solutions.... 
    React
    Full time
    Work at office
    Remote work
    Work from home

    Radicl

    Boulder, CO
    15 hours ago