46 react engineer jobs at 23 companies in Barrington, NH

3mo
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Senior Software Engineer, Mobile (React Native)
San Francisco or New York City or Portland
$185k-$215k/yr HybridFull Time
Forerunner
Forerunner: AI-powered platform for government built environment management.
5+ YOE5+ years software engineering; 3+ years React Native; JS/TS and React; cross-platform mobile; mobile performance and UI/UX; RESTful APIs; native mobile knowledge; strong collaboration; adaptable in fast-moving env.
React Native, JavaScript, TypeScript, React, Redux, RESTful APIs
2w
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Senior Software Engineer
Plano or Boston or Portsmouth or Indianapolis or Columbus
$106k-$197k/yr HybridFull Time
Liberty Mutual
Liberty Mutual: Provides diversified property, casualty, and commercial insurance products.
5+ YOE5+ years software engineering experience, strong foundation in data structures and algorithms, proficiency in Python or Java, experience with Java/React/Node.js/Spring Boot/AWS/REST/RDS, agile experience, strong communication.
Python, Java, React, Node.js, Spring Boot, AWS, RESTful services, RDS
2w
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Senior Software Engineer
Plano or Boston or Portsmouth or Indianapolis or Columbus
$106k-$197k/yr HybridFull Time
Liberty Mutual Insurance
Liberty Mutual Insurance: Global provider of property and casualty insurance products.
5+ YOE5+ years software engineering experience; proficiency with Python or Java, React, Node.js, Spring Boot, AWS, RESTful services and RDS; strong algorithms, system design, and communication skills; bachelor's or master's in technical/business field or equivalent experience.
Python, Java, React, Node.js, Spring Boot, AWS, RESTful services, RDS
1mo
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Software Developer II
Westbrook or Maine or New Hampshire or Massachusetts
$90k-$100k/yr HybridFull Time
IDEXX
IDEXXNASDAQ: IDXX: Diagnostic equipment and software for veterinary and water testing.
2+ YOE2+ years software engineering; frontend and backend experience; NodeJS or Java; JavaScript/TypeScript and React; AWS serverless (RDS, DynamoDB, API Gateway, Lambda, S3); SQL; Datadog; GitHub and CI/CD; Agile experience.
NodeJS, Java, JavaScript/TypeScript, React, AWS, RDS, DynamoDB, API Gateway, Lambda, S3, SQL, Datadog, AWS Cloudwatch, GitHub, AWS CodePipeline
4w
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Staff Software Engineer- Payroll Platform
Lowell, Massachusetts, United States
$130k-$186k/yr HybridFull Time
UKG
UKG: Provider of workforce management and human capital management software.
6+ YOE6+ years software engineering experience building large-scale distributed systems; expert Java, React, TypeScript; experience with SQL/NoSQL, cloud-native platforms (Azure/AWS/GCP); familiarity with AI/LLMs and observability; BS in CS or equivalent.
Java, React, TypeScript, SQL, NoSQL, Microsoft Azure, AWS, Google Cloud Platform, Large Language Models (LLMs), Retrieval-Augmented Generation (RAG), vector databases, agentic frameworks
3mo
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Senior Software Systems Engineer
Newington, New Hampshire, United States
OnsiteFull Time
SubCom
SubCom: Designs, manufactures, and installs subsea fiber optic cable systems.
Graduate STEM degree required; proficiency in C++, C#, SQL, ReactJS, RESTful/OpenConfig APIs, Linux (Red Hat); experience with automated testing, source control, security, and strong written/verbal communication.
C++, C#, SQL, ReactJS, RESTful APIs, Open API, OpenConfig, Linux, Red Hat
11h
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Software Engineer
Andover, Massachusetts, United States
$105k-$135k/yr HybridFull Time
The Weather Company
The Weather Company: Provides weather data, forecasting insights, and digital advertising solutions.
1+ YOE1–5 years software development experience; proficiency in React and backend development (Go, Node.js, or .NET/C#); experience with MongoDB and SQL Server, REST APIs, Git workflows, AWS, and AI coding tools; strong problem-solving and communication.
React, Go, MongoDB, AWS, .NET/C#, SQL Server, Node.js, GitHub Copilot, Cursor, Claude, Git, Docker, Kubernetes, EC2, S3, Lambda, RDS, CloudWatch, LLM APIs
3mo
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Advanced Software Engineer
Wilmington, Massachusetts, United States
$120k-$165k/yr HybridFull Time
Symbotic
SymboticNasdaq: SYM: AI-powered robotics and software for warehouse automation.
5+ YOE5+ years in software development; fullstack with React/Angular, Node.js, and C# .NET; distributed, event-driven systems (Kafka, RabbitMQ, SignalR); REST APIs; mentorship and cross-functional collaboration.
React, Angular, Node.js, C# .NET, Kafka, RabbitMQ, SignalR, REST APIs
3w
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Principal Performance Engineer
Merrimack, New Hampshire, United States
OnsiteFull Time
Fidelity Investments
Fidelity Investments: Provides investment management, retirement planning, and brokerage services.
Strong Java and Spring Boot experience; experience with RESTful APIs, performance/load testing (k6, Gatling, JMeter), debugging/profiling, Node.js, Angular/React, CI/CD, cloud-native testing, and observability.
Java, Spring Boot, RESTful APIs, k6, Gatling, JMeter, Node.js, Angular, React, CI/CD
2mo
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Full Stack Engineer
Merrimack, New Hampshire, United States
$80-$102/hr OnsiteFull Time
Fidelity Investments
Fidelity Investments: Financial services and investment management firm providing advisory solutions.
Experience building RESTful APIs, relational and NoSQL databases, strong OOP and design patterns, SDLC, CI/CD, mentoring, and front-end frameworks (Angular/React); strong communication and code-quality focus.
Angular, AngularJS, Backbone.js, React JS, JavaScript, CSS3
3mo
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Front-End Engineer, Amazon Robotics
North Reading, Massachusetts, United States
$144k-$194k/yr OnsiteFull Time
Amazon
AmazonNASDAQ: AMZN: Global online retail and cloud computing technology provider.
4+ YOE4+ years front-end development with JavaScript, HTML, CSS; 3+ years CS fundamentals; experience with Angular and React.
JavaScript, HTML, CSS, TypeScript, React, Angular, Node
3mo
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Principal Full Stack Engineer
Merrimack or Durham or Jersey City or Smithfield or Westlake
$107k-$216k/yr HybridFull Time
Fidelity Investments
Fidelity Investments: Provides investment management, retirement planning, and brokerage services.
Strong full stack web development with React/Angular, Node.js/Java, REST APIs, SDLC, Agile; micro-frontends experience preferred.
React, Angular, Node.js, Java, HTML, CSS, JavaScript, Spring, Storybook, Ionic, APIs, REST, Micro-frontend
1w
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Full Stack Developer
North Andover, Massachusetts, United States
$100k-$120k/yr HybridFull Time
Reynolds and Reynolds
Reynolds and Reynolds: Provides software and services for automotive retailers.
3+ YOEBachelor's preferred, minimum 3 years experience; full-stack development with React or Angular, API development, RDBMS/SQL, OAuth/JWT, OWASP/security, and performance tuning.
Windows, Microsoft .NET, Linux, iOS, Android, React, Angular, OAuth, JWT, OWASP, SQL
1mo
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Senior Engineer, Software Infrastructure
Wilmington, Massachusetts, United States
$110k-$152k/yr OnsiteFull Time
Analog Devices
Analog DevicesNASDAQ: ADI: Designs and manufactures semiconductors for signal processing and power management.
Experience in web frontend/backEnd, React, TypeScript, Node.js REST APIs, Backstage, Git/GitHub, Docker, cloud (AWS/Azure/GCP), testing (Jest/Playwright/Cypress), CI/CD, SBOMs, Agile software development.
React, TypeScript, JavaScript, Node.js, REST APIs, Backstage, Git, GitHub, Docker, AWS, Azure, GCP, Jest, Playwright, Cypress, CI/CD, SBOMs
2w
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Senior Software Engineer
Plano or Boston or Portsmouth or Indianapolis or Columbus
HybridFull Time
Liberty Mutual
Liberty Mutual: Provider of global property and casualty insurance products.
5+ YOE5+ years software engineering experience; strong data structures, algorithms, system design; proficiency in Python or Java; EMR not mentioned; experience with layered architectures and agile delivery.
Python, Java, React, Node.js, Spring Boot, AWS, RESTful services, RDS
1mo
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Intermediate Level Software Engineer - Nashua, New Hampshire, United States
Nashua, New Hampshire, United States
$90k-$110k/yr HybridFull Time
Jacobs
JacobsNYSE: J: Global provider of professional engineering and technical services.
2+ YOEBachelor's degree in computer science or related field; 2+ years software development; US citizen; ability to obtain security clearance; skills in C#, JavaScript/TypeScript, .NET; Azure DevOps, Jira; web frameworks (HTML/CSS/React)
Azure DevOps, Jira, C#, JavaScript, TypeScript, .NET, HTML, CSS, React, AngularJS, Blazor
1w
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Software Engineer, New College Graduate, (Teradyne, North Reading, MA)
North Reading, Massachusetts, United States
$73k-$117k/yr OnsiteFull Time
Teradyne
TeradyneNASDAQ: TER: Designs and manufactures automated test equipment and advanced robotics systems.
0+ YOEBachelor's in CS or related,0-2 years experience,certifications in cybersecurity/DevOps/cloud preferred,experience with Python,C#,JavaScript/TypeScript,SQL,React/Redux,Fast API,PostgreSQL/Microsoft SQL Server,Linux/Windows,cloud basics,strong analytical and communication skills.
Python, C#, JavaScript, TypeScript, SQL, React, Redux, Fast API, PostgreSQL, Microsoft SQL Server, Linux, Windows, Azure, AWS, Google Cloud, Azure DevOps, GitHub Actions, Jenkins, GitLab CI/CD, Terraform, Ansible, Docker, Kubernetes, SAST, DAST, software composition analysis, secrets scanning
2w
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Front-End Software Developer Co-Op Spring 2027
Peabody or Boston
$23-$30/hr OnsiteInternship
Specter Aerospace
Specter Aerospace: Building hypersonic vehicles for defense and commercial applications.
Pursuing a bachelor\u0002s in CS/CE/SE, experience with JavaScript/TypeScript/React, understanding of OOP, testing and documentation skills, eligible for U.S. Secret clearance, and able to pass drug/background checks.
JavaScript, TypeScript, React, HTML, CSS, Python, Plotly, D3.js, Git, PLC
3mo
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Senior Full Stack Ruby on Rails Software Engineer
Wakefield or Cambridge
$125k-$150k/yr HybridFull Time
Vestmark
Vestmark: Provides wealth management technology for financial advisors and institutions.
5+ YOE5+ years Ruby on Rails; 3+ years React/JavaScript; PostgreSQL; TypeScript a plus; Docker/AWS/GCP a plus; testing with RSpec/Jest; OO/FP proficiency.
Ruby on Rails, React, PostgreSQL, TypeScript, Inertia.js, Docker, AWS, Azure, GCP, Okta, Devise, RSpec, Jest
1d
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Sr. Software Quality Assurance Engineer
Wilmington, Massachusetts, United States
OnsiteFull Time
Rigaku
RigakuTokyo Stock Exchange: 268A: Manufacturer of X-ray based analytical and industrial instrumentation.
5+ YOE5+ years in software quality engineering for regulated product development, BS in software-related field, experience with design control, risk management, verification/validation, and strong communication skills.
Atlassian Jira, Zephyr, Confluence, Embedded Linux, Linux, PHP, JavaScript, React, Bash, PowerShell, Selenium, CI/CD