18 java reactjs developer jobs at 6 companies in Concord, NH

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
1w
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Staff Software Engineer-JAVA
Lowell, Massachusetts, United States
$130k-$186k/yr HybridFull Time
UKG
UKG: Provider of workforce management and human capital management software.
7+ YOE7+ years building enterprise Java web applications; strong Java, Spring Boot, Hibernate/JPA, React, SQL, cloud-native and AI integration experience; TDD and CI/CD practices.
Java, J2EE, Spring Boot, Spring Framework, Hibernate/JPA, React, JavaScript, HTML5, CSS3, REST APIs, SQL, LangGraph, OpenAI Agents SDK, CrewAI, AutoGen, OpenAI, Anthropic, Google Gemini, AWS, Microsoft Azure, Google Cloud Platform, Kubernetes, Docker, OpenShift, Terraform, CloudFormation, ARM Templates, GitHub Actions, Jenkins, Azure DevOps, GitLab CI, Datadog, Grafana, Prometheus, Splunk, OpenTelemetry, Bash, Python, PowerShell, GitHub Copilot, ChatGPT, Cursor, Claude
1w
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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
1w
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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
1w
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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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Senior Full Stack Engineer
Merrimack, New Hampshire, United States
OnsiteFull Time
Fidelity Investments
Fidelity Investments: Provides investment management, retirement planning, and brokerage services.
1+ YOEBachelor's + 3 years or Master's + 1 year; expertise with Java/Spring, Angular, Node.js, Kubernetes, SQL/Oracle; experience with CI/CD, automated testing, cloud services, and database systems.
Java, Spring MVC, Spring Core, Spring Boot, Angular, Node.js, Bootstrap5, CSS, Sass, AG Grid, Angular Flex Layout, cypress, junit, cucumber, karate, jest, Kubernetes, AWS EKS, SQL, Oracle, NX, NRWL, GraphQL, Playwright, Jenkins, Git, GitHub, Bitbucket, Artifactory, SonarQube, Veracode, Python, PowerShell, JMeter, Selenium, TestNG, Docker, Java17, OAuth, Kafka, EC2, S3, lambda, DynamoDB, CloudWatch, Datadog, IBM DB2, MySQL, Dynatrace, PL/SQL, Spring JDBC, DBUnit, React, TypeScript, JSON, UICL
2w
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Sr. Staff Software Engineer
Lowell, Massachusetts, United States
$146k-$209k/yr HybridFull Time
UKG
UKG: Provider of workforce management and human capital management software.
10+ YOE10+ years building enterprise Java-based web applications, expertise with cloud-native architectures, AI/LLM integrations, microservices, REST APIs, and strong testing and CI/CD practices.
Java, J2EE, Spring Boot, Spring Framework, Hibernate/JPA, React, JavaScript, HTML5, CSS3, REST APIs, Microservices, SQL, GitHub Copilot, ChatGPT, Cursor, Claude, LangGraph, OpenAI Agents SDK, CrewAI, AutoGen, OpenAI, Anthropic, Google Gemini, Model Context Protocol (MCP), AWS, Microsoft Azure, Google Cloud Platform, Kubernetes, Docker, OpenShift, Terraform, CloudFormation, ARM Templates, GitHub Actions, Jenkins, Azure DevOps, GitLab CI, Datadog, Grafana, Prometheus, Splunk, OpenTelemetry, Bash, Python, PowerShell
3w
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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
4d
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Senior Full Stack Software Engineer - Claims Technology
Portsmouth or Columbus or Boston or Indianapolis or Plano
$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; strong full stack skills with Java/Spring Boot and JavaScript/TypeScript; AWS cloud-native experience; CI/CD, observability, and enterprise security experience.
Lambda, API Gateway, S3, RDS, DynamoDB, SQS, SNS, Step Functions, CloudWatch, IAM, ECS, EKS, Java, Spring Boot, JavaScript, TypeScript, React, Angular, Vue, GitHub Actions, Datadog, Splunk, SQL Server, Kubernetes, GitHub Copilot, Microsoft Copilot, LibertyGPT, Apigee
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
1mo
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Principal Software Engineer
Newburyport, Massachusetts, United States
OnsiteFull Time
Darling Consulting Group
Darling Consulting Group: Provides asset liability management and risk solutions for banks.
Lead architecture of large-scale distributed systems; strong in data modeling, API design; cloud experience; proficient in modern languages; CI/CD and DevOps.
Python, C#, Java, JavaScript, REST, AWS, Azure, GCP, Angular, React, .NET, CI/CD, DevOps, Claude Code, GitHub Copilot
2w
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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
2w
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Factory Data Analytics Engineer
Andover, Massachusetts, United States
$87k-$165k/yr HybridFull Time
RTX
RTXNYSE: RTX: RTX provides advanced aerospace and defense systems and services.
5+ YOEU.S. citizenship and ability to obtain/maintain DoD Secret clearance, university degree or equivalent with 5+ years' relevant experience (3+ with advanced degree), programming and web development experience, SQL and Python ecosystem familiarity.
Python, Perl, C, C++, C#, Java, Pandas, NumPy, Scikit-learn, Matplotlib, Minitab, R, JMP, SAS, MSSQL, MariaDB, SQL, Angular, React, jQuery
1mo
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Sr. Builder - Mobile (Platform), Ring
North Reading, Massachusetts, United States
$168k-$227k/yr OnsiteFull Time
Amazon
AmazonNASDAQ: AMZN: Global online retail and cloud computing technology provider.
7+ YOE7+ years professional software and mobile development experience, 5+ years native iOS or Android (or equivalent cross-platform) experience, experience designing mobile architectures, CI/CD, automated testing, large-scale production systems, and technical leadership/mentorship.
Swift, Objective-C, Kotlin, Java, React Native, Flutter, Kotlin Multiplatform, SwiftUI, UIKit, Jetpack Compose, Coroutines, Combine, Bazel, Gradle, SwiftPM, Tuist, WebRTC, HLS, RTSP
2mo
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Systems Development Engineer, Tech Deployment & Field Support
Seattle or North Reading
$99k-$160k/yr OnsiteFull Time
Amazon
AmazonNASDAQ: AMZN: Global online retail and cloud computing technology provider.
Experience automating, deploying, and supporting infrastructure; proficiency in modern languages; AWS experience; Linux/Unix; front-end framework experience.
Python, Ruby, Golang, Java, C++, C#, Rust, Linux, React, Angular, AWS, EC2, Lambda, S3, DynamoDB, SQS
2w
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Builder - Mobile (Platform), Ring
North Reading, Massachusetts, United States
$144k-$194k/yr OnsiteFull Time
Amazon
AmazonNASDAQ: AMZN: Global online retail and cloud computing technology provider.
3+ YOE3+ years mobile development experience; strong native iOS (Swift/Objective-C) or Android (Kotlin/Java) or React Native; experience with UI frameworks, concurrency patterns, testing, CI/CD; familiarity with AI-assisted development preferred.
Swift, Objective-C, Kotlin, Java, React Native, SwiftUI, UIKit, Jetpack Compose, Combine, Coroutines, async JS, WebRTC, HLS, RTSP
1mo
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Sr. Builder - Mobile (General feature Dev), Ring
North Reading, Massachusetts, United States
$168k-$227k/yr OnsiteFull Time
Amazon
AmazonNASDAQ: AMZN: Global online retail and cloud computing technology provider.
7+ YOE7+ years professional software development, 5+ years native mobile (iOS Swift/Objective-C or Android Kotlin/Java) or cross-platform experience, mobile architecture and CI/CD expertise, experience shipping at large scale, mentoring/tech lead experience.
Swift, Objective-C, Kotlin, Java, React Native, SwiftUI, UIKit, Jetpack Compose, Coroutines, Combine, Flutter, Kotlin Multiplatform, REST APIs, CI/CD, Automated testing, Production monitoring
1mo
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Builder - Mobile (General feature Dev), Ring
North Reading, Massachusetts, United States
$144k-$194k/yr OnsiteFull Time
Amazon
AmazonNASDAQ: AMZN: Global online retail and cloud computing technology provider.
3+ YOE3+ years professional software development with mobile apps (iOS/Android or React Native); experience with modern UI frameworks, testing, CI/CD, and mobile performance and reliability.
Swift, Objective-C, Kotlin, Java, React Native, SwiftUI, UIKit, Jetpack Compose, Swift Concurrency, Combine, Coroutines, async JS, CI/CD
1mo
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Builder - Mobile (Platform), Ring
North Reading, Massachusetts, United States
$144k-$194k/yr OnsiteFull Time
Amazon
AmazonNASDAQ: AMZN: Global online retail and cloud computing technology provider.
3+ YOE3+ years mobile development (iOS/Android or React Native); strong mobile fundamentals, modern UI frameworks and concurrency, unit/UI testing, CI/CD experience; Bachelor's preferred.
Swift, Objective-C, Kotlin, Java, React Native, SwiftUI, UIKit, Jetpack Compose, Swift Concurrency, Combine, Coroutines, JavaScript, WebRTC, HLS, RTSP, Bluetooth, CI/CD