React.js Jobs in Boston, MA

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Senior Engineer

Kforce Technology Staffing

•

Remote or Johnston, Rhode Island, USA

Contract

RESPONSIBILITIES: Kforce has a client in need of a Senior Engineer. Key Responsibilities: * Utilize expertise in C# .Net and functional Reactjs to develop and maintain both front-end and back-end components of our applications * The Senior Engineer will create and use REST webservices to ensure seamless communication between the front-end and back-end systems * Leverage Azure technologies to enhance the scalability and performance of our applications * Utilize Docker and Kubernetes for containe
Posted 12 hours ago | Updated 2 hours ago

Lead Software Engineer

Athenahealth

•

Boston, Massachusetts, USA

Full-time

Join us as we work to create a thriving ecosystem that delivers accessible, high-quality, and sustainable healthcare for all. We are looking for a Lead Software Engineer to join our athenaCollector team. In athenaCollector we build technology solutions that automate (RCM) Revenue Cycle Management. This Collector team is implementing the underlying medical back-office processes to automate and integrate the unique claims cycle requirements. The successful candidate will have proven experience in
Posted 16 hours ago

Lead Full Stack Developer

Booz Allen Hamilton

•

Lexington, Massachusetts, USA

Full-time

Job Number: R0219925 Full Stack Developer, Lead The Opportunity: As a full stack developer, you can resolve a problem with a complete end-to-end solution in a fast, agile environment. If you're looking for the chance to not just develop sof tware, but to create a system that will make a difference, we need you on our team. We're looking for an experienced developer like you with the skills needed to develop sof tware and systems from vision to production ready. This role is more than just codi
Posted 34 days ago | Updated 9 hours ago

Staff Software Engineer

Motion Recruitment Partners, LLC

•

Boston, Massachusetts, USA

Full-time

About Us: We are a leading automation machinery manufacturing company committed to revolutionizing industrial processes through innovation, precision, and software-driven automation. Our engineering teams design and build high-performance machines powered by modern software solutions that drive efficiency, reliability, and scalability for our clients worldwide. Position Overview: We are seeking a highly skilled and experienced Staff Software Engineer with a strong full stack development backgr
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Posted 25 days ago | Updated 4 hours ago

Lead / Staff Software Engineer Series A grow to Director quickly as team scales

Motion Recruitment Partners, LLC

•

Boston, Massachusetts, USA

Full-time

About Us: We're a high-growth Fintech/AI SaaS startup that just closed a $110M Series A from top-tier investors. Our platform is transforming how financial data is analyzed and acted upon using cutting-edge AI-helping institutions automate decisions, reduce risk, and scale with confidence. Our founding CTO is a proven technologist with prior successful exits, and the current team includes a strong bench of junior engineers. We're now looking to bring on a hands-on Lead or Staff Software Enginee
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Posted 39 days ago | Updated 4 hours ago

Senior Frontend Engineer

Rockstar Games

•

Andover, Massachusetts, USA

Full-time

At Rockstar Games, we create world-class entertainment experiences. Become part of a team working on some of the most rewarding, large-scale creative projects to be found in any entertainment medium - all within an inclusive, highly motivated environment where you can learn and collaborate with some of the most talented people in the industry. Rockstar Games is seeking a talented and experienced Frontend Engineer with a focus on the "back of the frontend" to join our online development team. Thi
Posted 3 days ago | Updated 9 hours ago

Application Development / Maintenance, Officer

State Street Corporation

•

Quincy, Massachusetts, USA

Full-time

Who we are looking for State Street is looking for an application developer with 3-5 years' experience for the EPW Plus Team, a part of Global Technology Services. This is a hands-on development position for a candidate with proven record of software development, life cycle management and execution excellence. The candidate has experience in Financial Services. The Application Developer will be a completely hands-on developer, developing in React.JS, Java Script, Java and SQL. The candidate mu
Posted 1 day ago | Updated 9 hours ago

Software Engineer V

Aditi Consulting

•

Remote or Arkansas City, Arkansas, USA

Contract

Payrate: $77.00 - $78.40/hr. Summary: As a Software Developer, you will play a key role in building robust and scalable software applications and services. You will work closely with our Technology and Products Teams to improve services and system architecture. Responsibilities: Application Development: Develop high-quality software solutions using Java, Spring Boot and React, ensuring scalability and robustness. Collaborative Innovation: Participate in brainstorming sessions and contribute idea
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Posted 6 days ago | Updated 3 hours ago

Lead Software Engineer - athenaCollector

Athenahealth

•

Boston, Massachusetts, USA

Full-time

Join us as we work to create a thriving ecosystem that delivers accessible, high-quality, and sustainable healthcare for all. We are looking for a Lead Software Engineer to join our athenaCollector team. In athenaCollector we build technology solutions that automate (RCM) Revenue Cycle Management. This Collector team is implementing the underlying medical back-office processes to automate and integrate the unique claims cycle requirements. The Team: The athenaCollector product is a critical part
Posted 16 hours ago

Lead Software Engineer - athenaCollector

Athenahealth

•

Boston, Massachusetts, USA

Full-time

Join us as we work to create a thriving ecosystem that delivers accessible, high-quality, and sustainable healthcare for all. We are looking for a Lead Software Engineer to join our athenaCollector team. In athenaCollector we build technology solutions that automate (RCM) Revenue Cycle Management. This Collector team is implementing the underlying medical back-office processes to automate and integrate the unique claims cycle requirements. The Team: The athenaCollector product is a critical part
Posted 16 hours ago

Lead Software Engineer - athenaCollector

Athenahealth

•

Boston, Massachusetts, USA

Full-time

Join us as we work to create a thriving ecosystem that delivers accessible, high-quality, and sustainable healthcare for all. We are looking for a Lead Software Engineer to join our athenaCollector team. In athenaCollector we build technology solutions that automate (RCM) Revenue Cycle Management. This Collector team is implementing the underlying medical back-office processes to automate and integrate the unique claims cycle requirements. The Team: The athenaCollector product is a critical part
Posted 16 hours ago

Senior Full Stack Engineer

Motion Recruitment Partners, LLC

•

Boston, Massachusetts, USA

Full-time

We are a cybersecurity innovator dedicated to protecting organizations from advanced digital threats. Our platform combines intelligence, automation, and deep security insight to help teams detect, respond to, and neutralize risks in real-time. We are growing rapidly and are looking for exceptional engineers to join us in building the future of secure software. Role Overview We're seeking a Senior Full Stack Engineer with expertise in TypeScript and Ruby on Rails to join our engineering team. T
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Posted 34 days ago | Updated 4 hours ago

Mid Cloud Software Engineer

Booz Allen Hamilton

•

Lexington, Massachusetts, USA

Full-time

Job Number: R0221228 Cloud Software Engineer, Mid The Opportunity: As a back-end developer, you know that a good site or system needs the right combination of clean code, APIs, analytics, and infrastructure to develop a user-focused solution. We're looking for a back-end developer with the software engineering skills it takes to help identify potential risks, contribute to solution development, and create efficient and effective systems for our clients. As a back-end developer at Booz Allen, you
Posted 12 days ago | Updated 9 hours ago

Mid Cloud Software Engineer

Booz Allen Hamilton

•

Lexington, Massachusetts, USA

Full-time

Job Number: R0221081 Cloud Software Engineer, Mid The Opportunity: As a back-end developer, you know that a good site or system needs the right combination of clean code, APIs, analytics, and infrastructure to develop a user-focused solution. We're looking for a back-end developer with the software engineering skills it takes to help identify potential risks, contribute to solution development, and create efficient and effective systems for our clients. As a back-end developer at Booz Allen, you
Posted 12 days ago | Updated 9 hours ago

Senior Software Engineer

Massachusetts Institute of Technology (MIT)

•

Cambridge, Massachusetts, USA

Full-time

Posting Description SENIOR SOFTWARE ENGINEER, Open Learning, Engineering , will architect, develop, and optimize scalable software solutions, ensuring performance, security, and maintainability; write high-quality code in Javascript, Python, and other modern web technologies; lead and participate in architecture discussions, technical design, and code reviews to maintain high engineering standards; collaborate closely with MIT developers, educators, learners, and the Open edX community to improv
Posted 60+ days ago | Updated 9 hours ago

Principal Software Engineer

Athenahealth

•

Boston, Massachusetts, USA

Full-time

Join us as we work to create a thriving ecosystem that delivers accessible, high-quality, and sustainable healthcare for all. We are looking for a Principal Software Engineer to join our athenaCollector team. In athenaCollector we build technology solutions that helps patients to make payments using various payment modes. This Collector team is implementing the PCI compliant Credit Card payment collection, cheque or ACH modes of payment and brings financial visibility of health care services. Y
Posted 16 hours ago

Senior Full Stack Engineer

Motion Recruitment Partners, LLC

•

Boston, Massachusetts, USA

Full-time

We're revolutionizing agriculture through data-driven insights and innovative software solutions. Headquartered in Boston, MA, our mission is to empower farmers, agronomists, and food suppliers with cutting-edge tools that optimize crop yields, reduce waste, and support sustainable farming practices. We're seeking a passionate and experience Senior Full Stack Engineer to join our fast-growing product development team. This is an exciting opportunity to work at the intersection of technology and
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Posted 39 days ago | Updated 4 hours ago

Senior Engineering Manager - Data Ecosystem Platform

Athenahealth

•

Boston, Massachusetts, USA

Full-time

Join us as we work to create a thriving ecosystem that delivers accessible, high-quality, and sustainable healthcare for all. We are looking for a Senior Manager of Engineering to join our Data and Ecosystem Platform team. As a manager, you will partner with Product to drive the success and evolution of our API platform. You are committed to developing your engineers and fostering a culture of innovation, accountability, results, and high-performing teams. You are passionate about building inc
Posted 16 hours ago

Senior Full Stack Engineer

Motion Recruitment Partners, LLC

•

Boston, Massachusetts, USA

Full-time

We're transforming the future of education by building innovative digital platforms that empower students, teachers, and institutions to succeed. Our solutions aim to make learning more accessible, personalized, and effective. We're looking for a passionate Senior Full Stack Engineer to join our growing team and help shape the tools that will educate the next generation. Responsibilities Design, develop, and maintain scalable web applications using Node.js and modern frontend technologies (Rea
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Posted 32 days ago | Updated 4 hours ago

Principal Full Stack Engineer

Motion Recruitment Partners, LLC

•

Boston, Massachusetts, USA

Full-time

About Us We are a fast-growing healthtech company revolutionizing the medical coding industry with cutting-edge technology. Our platform leverages AI and automation to streamline medical coding workflows, ensuring accuracy, compliance, and efficiency for healthcare providers across the country. We are looking for a Principal Full Stack Engineer to lead the development of our core platform. This role is ideal for someone who thrives in a startup environment, enjoys building end-to-end systems, a
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Posted 60+ days ago | Updated 4 hours ago