React Engineer Jobs in Denver, CO

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W2 - (6) - S/w Engineer (n-tier architectures, API, Python, Node, Java/.Net, ReactJS, JavaScript, HTML/CSS) - Remote

Tanson Corp

Remote or Minnesota, USA

Contract

Duties: Requirements: 5+ years experience building distributed software systems with n-tier architectures. Should have an expert level of experience in one of the following and be proficient in all: API development with Python, Node, Java, or .Net. Frontend development with ReactJS, JavaScript, HTML/CSS. Operations integration with reporting and performance tools. Experience with cloud-based deployment environments. SEE SCHEDULE NOTES FOR SCOPE OF WORK Position Overview: (Major Functions an

Full Stack C#/React Software Engineer

York Space Systems

Greenwood Village, Colorado, USA

Full-time

Salary: $110,000-$140,000 York Space Systems was founded to radically improve spacecraft affordability and reliability, transforming, and enabling next-generation space mission operations worldwide. Today, York is one of the most innovative aerospace companies, specializing in end-to-end customer solutions and the rapid production of spacecraft platforms. York's complete Space Segment Solution includes spacecraft production, payload integration, system integration & test, launch services, ground

Software Engineer (.NET and React)

Parkar Consulting Group, LLC

Remote

Full-time

Job Title: Software Engineer (.NET and React)Job Type: Full-TimeLocation: Remote About the Role:We are looking for a skilled and motivated Software Engineer with expertise in .NET (C#) and React.js to join our dynamic development team. In this role, you will be responsible for designing, developing, and maintaining high-quality web applications that are scalable, secure, and user-friendly. You ll collaborate with cross-functional teams, including product managers, designers, and QA engineers, to

Software Engineer II - .NET/React with Excel VBA Experience (Hybrid)

Unum

Remote

Full-time

Our Fortune 500 company is driving a digital transformation and looking for forward-thinking innovators to disrupt how our industry thinks about and uses technology. As one of the world's leading employee benefits providers, we help millions of people gain affordable access to benefits that help them protect their families, their finances and their futures. Are you an asker of questions, a solver of problems, and a challenger of the status quo? Our mission is to provide a differentiated custome

Senior Full Stack Engineer / Fintech / React / Remote

Motion Recruitment Partners, LLC

Remote or New York, New York, USA

Full-time

Fullstack Software Engineer Join a high-growth financial technology company revolutionizing financial services by delivering the best possible pricing with high-quality digital experiences. We are looking for a Full Stack Engineer to help reshape a 1,000-year-old industry. This is a full-time role where you'll build full-stack web features, work with APIs, and take ownership from inception to post-launch. This opportunity is ideal for engineers who thrive in fast-paced environments, enjoy workin

Senior Full Stack Engineer / ClimateTech / React + Ruby on Rails / NYC or Remote

Motion Recruitment Partners, LLC

Remote or New York, New York, USA

Full-time

Senior Full-Stack Engineer Join a mission-driven startup at the intersection of climate and fintech, dedicated to making sustainable building upgrades-like heat pumps, batteries, and EV chargers-more affordable and accessible. We are looking for a Senior Full-Stack Engineer to build products and features that empower contractor and manufacturer partners to accelerate the adoption of energy-efficient solutions. This role is ideal for engineers who thrive in fast-paced environments, enjoy working

Front End Developer - React

Unison Systems, Inc

Westminster, Colorado, USA

Contract

Unison Systems is looking for two talented and passionate web developers with 6+ years of experience to focus on enhancing our clients' web applications' UI/UX. Our client is based out of Boulder, CO and offers fully remote opportunities in a forward-thinking and positive-minded environment. React Developer Position Contract to hire Remote- Core hours Responsibilities include: - Implementing high-fidelity designs geared toward improving UI/UX - Building or enhancing reusable components - Implem

React Developer-TypeScript, AWS

InfoVision, Inc.

Denver, Colorado, USA

Contract

React Developer-TypeScript, AWS Denver CO onsite 5 days a week 5+ years of experience as a Software Engineer, including at least one year of professional development in TypeScript.You have experience with object-oriented design and algorithms.5+ years of UI development experience, ideally with React and TypeScript & NodeJS Backend 5+ years of AWS experience, ideally with AWS certification preferred(API Gateway, AWS Lambda, EKS, ECS, EC2, Parameter Store, IAM, CloudFront, S3, CloudWatch)2+ years

Software Developer

Innova Solutions, Inc

Greenwood Village, Colorado, USA

Contract

A client of Innova Solutions is immediately hiring a React Developer. Position Type: Full-Time, Contract Duration: 6+ months Location: Greenwood Village, CO 80111 (On-site) As a React Developer, you will: Lead the implementation of approved architectural changes, ensuring alignment with project goals and minimizing disruptions to legacy systems.Perform feature development on the Kite-CLI, a node command-line utility that scaffolds Kite-based projects and provides other quality of life feature

Remote React Developer DoD Secret Clearance Required

Highspring

Remote

Contract

Overview Remote role but required to have an Active Secret Clearance. Seeking a Front-End Developer to support the development of applications for the Department of Defense. The ideal candidate will be a mid-level React developer with strong UI skills and experience in fast-paced Agile environments. Key Responsibilities Develop front-end applications using React, TypeScript, and JavaScript Ensure performance, accessibility, and high-quality UI standards Required Experience 4+ years in front

React Developer

Collabera LLC

Remote or Houston, Texas, USA

Full-time

Title: React/Frontend Developer Location: remote (can sit anywhere in the US)!! Type of opening: Contract - 6 months with potential extensions Day to day: Develop and maintain user interfaces using React.js and its core principles. Write clean, well-documented, and efficient code. Collaborate with cross-functional teams to define, design, and ship new features. Ensure the technical feasibility of UI/UX designs. Requirements: React (DO NOT WANT React Native) Vitest Jest Web Development Experience

Lead/Senior Full Stack Engineer (Node & React) with AI/ML

iSpace, Inc

Remote

Contract

Only on W2, NO C2C/1099 Title: Lead Full Stack Engineer (Node & React) with AI/ML Position type: 12+ Months contract to start (could go for over 1-2 years) Location: Remote Top Skills: Node. JS, React, State Management, MySQL, AWS, Docker, Kubernetes, Open AI/Chat GPT, lead experience with both onshore and offshore. Qualifications: 7+ years of experience building complex web applications.Solid work experience using component-based development on the client side.Proficiency with front-end techn

React.js / Node.js Developer

Cymertek Corporation

Aurora, Colorado, USA

Full-time

React.js / Node.js Developer LOCATION Aurora, CO 80014 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are looking for a talented and dynamic **React.js / Node.js Developer** to join our team and contribute to the design and development of high-performance web applications. In this role, you will leverage your expertise in React.js for building intuitive front-end interfaces and Node.js for creating robust back-end services. You will work cl

Senior React.js Developer

SLK America Inc.

Remote or Jacksonville, Florida, USA

Full-time

Senior React.js Developer: Location: Jacksonville, FL Lead the delivery of mobile applications within the Digital domain, ensuring alignment with business goals, security standards, and regulatory requirements. Define and implement scalable, robust, and maintainable mobile application architectures that support a wide range of financial services and functionalities. Collaborate closely with product managers, UX/UI designers, backend developers, and other stakeholders to understand business requi

Full Stack Developer (ReactJS, Vue, Angular)

Cymertek Corporation

Aurora, Colorado, USA

Full-time

Full Stack Developer (ReactJS, Vue, Angular) LOCATION Aurora, CO 80014 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are seeking a talented Full Stack Developer with expertise in ReactJS, Vue, and Angular to join our dynamic team. In this role, you will be responsible for designing, developing, and maintaining modern web applications, working across both front-end and back-end systems. You will collaborate with designers, product managers,

React Developer

Kforce Technology Staffing

Remote or Atlanta, Georgia, USA

Contract

RESPONSIBILITIES: Kforce has a client seeking a fully remote React Developer to join their team. This team builds all of their components within React (hooks), and then integrates into a graphQL API built by other teams in .COM. They are very flexible on experience working with other testing tools - however Node.JS and GraphQL are big pluses. This client is in need of a pure React Developer to assist with the buildout atomic react components that will be utilized across cart and checkout. REQUI

Lead UI React developer :::

REDLEO SOFTWARE INC.

Remote

Full-time

Lead UI React developer 100% Remote Fulltime12+ React development with extensive experience in Front-end frameworks and backend support knowledge. This role is expected to work independently as Lead Front end Developer to develop a web-based application from the requirements and wireframe designs provided. Extensive usage of JavaScript, React JS, Mobile (IONIC / React Native), Node JS, Bootstrap, jQuery/AJAX, JSON, HTML4/5, CSS2/3 to build Interactive User Interface (UI)Build and manage CI/CD

Full Stack React Developer with .net expereince

Nineteen Eleven Solutions

Remote

Full-time

Position: Sr. Full Stack .Net Developer (Heavy React Front End)Terms: Full-Time / PermanentSalary: $120,000 per yearLocation: 100% Remote (Candidates within a 200-mile radius of Nashville, TN preferred) Overview:We are seeking a Senior Full Stack .Net Developer with a strong front-end focus to work on a high-impact payment processing application. The project involves maintaining a current application built in .NET, jQuery, and ASP, and participating in its transition to a modern tech stack using

Java/React Developer

CitiusTech

Remote

Full-time

Responsibilities:- Mandatory Skills Java 8+, Springboot, SQL, Restful Services Desired Skills OCI, Cloud Good to have skills: AWS, OCI, AZURE Job Description Backend: Java 7/8/11(java from core to advanced concepts), JUNIT, Spring boot, Spring Framework, Service API, Microservices. Frontend: ReactJS, Java 8, JavaScript, Spring boot, Typescript, Jest unit testing framework. DB: PLSQL, Oracle 11g, OS: Windows, Linux Secondary Skills: Oracle ADF / SOA, Spring cloud Desirable skills: Exposure to Jir

Front End GUI Developer / Software Engineer

Cymertek Corporation

Aurora, Colorado, USA

Full-time

Front End GUI Developer / Software Engineer LOCATION Aurora, CO 80014 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are seeking a creative and detail-oriented Front End GUI Developer / Software Engineer to join our innovative team. In this role, you will design and develop intuitive, responsive user interfaces that deliver seamless user experiences. Collaborating closely with designers, backend developers, and stakeholders, you will transf