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731 senior software engineer react jobs at 408 companies in Fairfield, CT

1mo
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Senior Software Engineer (NodeJS, React)
Budapest or New York City or Washington or Vancouver or London or Galway or Munich or Bengaluru or Singapore or Sydney
HybridFull Time
Diligent
Diligent: Provides software for corporate governance, risk, and compliance management.
5+ YOE5+ years hands-on commercial development, strong SQL/RDBMS, microservices and REST API experience, cloud-native (AWS) experience; NodeJS/React, CI/CD, containers and mentoring skills preferred.
SQL, RDBMS, REST APIs, AWS, NodeJS, React, CI/CD, containers, GitHub actions, QuickSight, Lookr
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1mo
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Sr. Software Engineer (React Native)
Shelton, Connecticut, United States
$119k-$149k/yr OnsiteFull Time
Subway
Subway: Global restaurant chain specializing in made-to-order submarine sandwiches.
6+ YOE6+ years software engineering experience; strong JavaScript, Node.js, ReactJS and React Native skills; experience with REST APIs, unit/integration testing, CI/CD, version control, databases; BS in CS or equivalent preferred.
JavaScript, Node.js, ReactJS, React Native, REST APIs, CI/CD
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2mo
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Senior Software Engineer (Front-end)
New York, New York, United States
HybridFull Time
ExaCare
ExaCare: AI-powered platform for post-acute care operations and admissions.
4+ YOESenior frontend-focused fullstack engineer with React, Node.js or Python; strong frontend architecture, collaboration, and mentorship.
React.js, Node.js, Python, Frontend frameworks, Storybook, UI toolkits, Testing frameworks, PostgreSQL, MySQL, AWS, GCP, Sentry, Bugsnag, Datadog
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3mo
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Senior Software Engineer
New York, New York, United States
HybridFull Time
TickPick
TickPick: Online marketplace for buying no-fee live event tickets.
5+ YOE5+ years professional software engineering; proficient in C#/.NET, TypeScript/Node.js, or React/React Native; SQL (SQL Server/PostgreSQL); experience with AI coding agents; production systems handling real traffic/money; Azure experience a plus
C#/.NET, TypeScript/Node.js, React/React Native, Azure SQL, Azure Service Bus, Azure Storage, Azure Cosmos DB, Claude Code, Codex, Visual Studio, VSCode, Cursor, Azure Cloud Platform
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3d
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Sr. Software Engineer- React Native Mobile
Shelton, Connecticut, United States
$119k-$149k/yr OnsiteFull Time
Subway
Subway: Global quick-service restaurant chain specializing in made-to-order sandwiches.
6+ YOERequires 6–9 years of software engineering experience, strong React Native and TypeScript expertise, mobile testing and release experience, REST APIs, authentication, and a bachelor's degree or equivalent experience.
React Native, Expo, TypeScript, Redux Toolkit, MMKV, React Navigation, Adyen, Apple Pay, Google Pay, AWS Cognito, Jest, React Native Testing Library, Maestro, GitHub Actions, Expo Application Services (EAS), Fastlane, Sentry, LaunchDarkly, Adobe Experience Platform, Quantum Metric, BrowserStack, Swift, Objective-C, Kotlin, Java, REST APIs, Azure DevOps, Figma, OneTrust
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2w
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Senior React Developer
New York City, New York, United States
$130k-$216k/yr OnsiteFull Time
London Stock Exchange Group
London Stock Exchange GroupLondon Stock Exchange: LSEG: Provides financial market infrastructure and global data analytics services.
Strong JavaScript, TypeScript, HTML skills; cloud experience (Azure or AWS preferred); modern Agile and DevOps exposure; strong problem investigation and communication skills.
Javascript, HTML, Typescript, Azure, AWS
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Senior Software Engineer
New York City, New York, United States
$180k-$230k/yr OnsiteFull Time
Baton
Baton: Marketplace for buying and selling small businesses.
Senior software engineer experienced with production AI systems and full-stack development.
Python, Go, GraphQL, React, TypeScript
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2w
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Senior Software Engineer
New York City, New York, United States
$200k-$220k/yr HybridFull Time
Ladders
Ladders: Platform for high-paying job searches and career management tools.
6+ YOE6+ years software engineering experience; strong programming and software design; production experience with React or Next.js and Go, Python, or JavaScript; full-stack ownership and cross-functional collaboration.
React, Next.js, Go, Python, JavaScript, Elasticsearch, Kafka, RabbitMQ, AWS SQS, MariaDB, Vite
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2mo
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Senior Software Engineer, Air AI
Mountain View or Los Angeles or San Francisco or New York City
$170k-$230k/yr HybridFull Time
Commure
Commure: AI-powered software platform for healthcare workflow and administrative automation.
4+ YOE4+ years software engineering; strong fullstack Python backend and TypeScript/React frontend; Docker and Kubernetes; experience with LLM APIs; production AI features; able to ship quickly.
Python, TypeScript, React, Docker, Kubernetes
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2mo
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Senior Software Engineer
New York City or San Francisco
OnsiteFull Time
Opencall
Opencall: Developing AI phone agents for automated medical office scheduling.
6+ YOE6+ years software engineering experience, proficiency in Python and Typescript, frontend experience (React preferred), strong fundamentals, bachelor’s or master’s in CS/engineering, leadership and mentoring capability.
Python, Typescript, React, Docker, Kubernetes, GraphQL, Relay GraphQL, AWS, GCP, Azure
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3w
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Senior Software Engineer
New York City, New York, United States
$170k-$190k/yr OnsiteFull Time
Neon
Neon: DTC commerce and payment platform for mobile game developers.
5+ YOE5+ years software engineering experience, full-stack with strong React and TypeScript skills, ability to lead projects, and work from New York City office.
React, TypeScript
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1mo
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Senior Software Engineer
New York City or Washington or Austin or San Francisco
$195k-$235k/yr OnsiteFull Time
Method Financial
Method Financial: Connects financial accounts and processes debt payments via API.
5+ YOE5+ years software engineering experience; expert knowledge of JavaScript, Python or Java; experience with Node and React; building scalable production systems; strong communication and debugging skills.
JavaScript, JS, Node, React, Python, Java, AWS, Cloudflare, CI/CD, ACH, RTP
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3mo
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Senior Software Engineer
San Francisco or New York City
$180k-$230k/yr HybridFull Time
Beacons
Beacons: All-in-one business platform for content creators and influencers.
Proficient in TypeScript (React) and Python (Flask); AI-native workflow experience; experience with SQL/Postgres; startup experience; strong customer focus.
React, TypeScript, Python, Flask, Firebase, SQL, PostgreSQL
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2w
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Sr React Developer- New York
New York, New York, United States
$40k-$140k/yr HybridFull Time
Photon: A technology providing software and platform services for talent acquisition and hiring.
5+ YOEBachelor's degree, 5+ years frontend experience, 4+ years React experience, strong JavaScript/TypeScript, React Hooks, state management, REST/GraphQL integration, and frontend build tools.
React.js, Next.js, JavaScript (ES6+), TypeScript, Redux, Redux Toolkit, Zustand, Context API, HTML5, CSS3, Sass, Tailwind CSS, Material UI, REST, GraphQL, Jest, React Testing Library, Cypress, Vite, Webpack, Babel, npm, yarn, Git, GitHub Actions, Jenkins, Azure DevOps, AWS, Azure, GCP, OAuth2, JWT, OpenID Connect
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2mo
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Senior Software Engineer
New York City, New York, United States
$202k-$223k/yr HybridFull Time
Asana
AsanaNYSE: ASAN: Software platform for team project management and workflow automation.
3+ YOE3+ years in large, well-maintained codebases; experience with TypeScript and React; strong communication; balance speed with quality and maintainability; attention to detail; collaborative mindset.
TypeScript, React
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1mo
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Senior Software Engineer, C&I
United States or Brooklyn
$130k-$170k/yr RemoteFull Time
EnergyHub
EnergyHubNASDAQ: ALRM: Software platform managing distributed energy resources for utility grids.
5+ YOE5+ years software engineering experience; senior-level React and Java experience; strong full‑stack, SQL, automated testing, CI/CD, and technical project leadership skills.
React, Java, Jest, JUnit, SQL, Springboot, Maven, Python, S3, MongoDB, AWS, DBT, Snowflake
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2mo
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Senior Software Engineer
New York City, New York, United States
OnsiteFull Time
Evvy
Evvy: Precision women’s health that uses vaginal microbiome data to improve patient outcomes.
5+ YOE5+ years full-stack experience; strong Python/PostgreSQL backend; React/TypeScript frontend; cloud experience; AI/ML feature work; product ownership and cross-functional collaboration.
Python, PostgreSQL, React, TypeScript, Cloud, AI-native development, Claude Code
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5d
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Senior Software Engineer
United States or Dallas or Chicago or New York City or California or Seattle or Texas
$122k-$146k/yr RemoteFull Time
WEX
WEXNYSE: WEX: Provides global payment processing and business information management services.
5+ YOEBachelor's degree or equivalent experience, 5+ years in software engineering, Angular or React, REST APIs, unit testing, security principles, Git, CI/CD, Agile, cloud-native development, and complex project delivery.
Angular, React, REST APIs, Test Driven Development, Behavior Driven Development, Microservice, Vertical Slice Architectures, C#, Python, Docker, MS SQL, Postgres, MySQL, ASP.NET, Kafka, Kubernetes, Helm, ArgoCD, Terraform, GitHub Actions, NoSQL, GraphQL, Azure, Git, CI/CD
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3mo
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Senior Software Engineer - Compliance Technology
Greenwich or New York
$150k-$235k/yr HybridFull Time
Balyasny Asset Management
Balyasny Asset Management: Global multi-strategy investment firm managing diverse financial assets.
10+ YOE10+ years software development; expert in C#; SQL; React; CSS; Python; AWS; Agile/SCRUM; DevOps; AI-assisted tools; finance experience a plus.
C#, SQL, React, CSS, Python, AWS, CI/CD, infrastructure-as-code, AI tools
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2mo
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Senior Software Engineer - Product
Yonkers or Washington or Colchester or Arizona or California or Connecticut or Illinois or Maryland or Massachusetts or Michigan or New Hampshire or New Jersey or New York or Texas or Vermont or Virginia or District of Columbia
$115k-$160k/yr RemoteFull Time
Consumer Reports
Consumer Reports: Tests products and publishes ratings for consumer advocacy.
5+ YOE5+ years software engineering experience; proficiency with React, React Native, Python (FastAPI); experience building multi-platform apps, CI/CD, automated testing, observability; strong communication; bachelor’s degree preferred.
React, React Native, Python, FastAPI, AWS, Azure, Google Cloud Platform, CI/CD
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