253 senior software engineer react jobs at 142 companies in Everett, MA
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Senior Software Engineer, Lab Software
Cambridge, Massachusetts, United States
$144k-$210k/yr OnsiteFull Time
5+ YOESenior backend-focused software engineer with 5-8+ years of experience building large-scale systems; full-stack development; Python, FastAPI, React, TS, SQL/NoSQL; cloud, AWS, Kubernetes; collaboration with scientists.
React, TypeScript, Tailwind, FastAPI, SQL, NoSQL, Python, Pydantic, AWS, Kubernetes, Terraform, CloudFormation, GitHub Actions, Airflow, Prefect, Temporal, Dagster
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Senior Software Engineer
Merrimack or Smithfield
OnsiteFull Time
Senior software engineer with RESTful APIs, JavaScript frameworks, databases, SDLC, CI/CD, mentoring, and strong OO design.
JavaScript, Angular, AngularJS, Backbone.js, React.js, CSS3
3d
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Software Engineer, React Focus
Nashua, New Hampshire, United States
$118k-$201k/yr HybridFull Time
6+ YOERequires 6+ years building production software, 4+ years with TypeScript/JavaScript and Node, deep React expertise, system-level design ownership, mentoring, strong writing, and ability to obtain a DoD Secret clearance as a U.S. citizen.
TypeScript, JavaScript, Node, React, Next.js, gRPC, Protocol Buffers (protobuf), Turborepo, Nx, REST, Playwright, AG Charts, D3, Storybook, CI/CD
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Senior Software Engineer
Boston, Massachusetts, United States
OnsiteFull Time
3+ YOE3-6 years software engineering; React, TypeScript, Python; experience with LLMs and agentic workflows; product-minded; shipping production systems.
React, TypeScript, Python, LLMs, APIs, CI/CD
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Senior Software Engineer
Boston, Massachusetts, United States
$140k-$165k/yr HybridFull Time
6+ YOE6+ years of professional software engineering; strong backend with Python; data pipelines or large-scale systems; production web apps, APIs, distributed systems; React frontend; MySQL/Snowflake; AWS; Docker, Terraform, CI/CD; testing; collaborative; Boston office 2 days/week.
Python, React, AWS, Docker, Terraform, CI/CD
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Senior Software Engineer
Boston, Massachusetts, United States
$140k-$160k/yr HybridFull Time
5+ YOE5–8+ years full-stack engineering; C#/.NET or Java; React/TypeScript; APIs; SQL; Git; CI/CD; Azure; Agile; secure coding.
C#, Java, React, TypeScript, SQL, Git, CI/CD, Azure, Cloud
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Senior Software Engineer
United States or Boston
$125k-$254k/yr RemoteFull Time
5+ YOE5+ years in software engineering; proficient in Java, Kotlin; REST/GraphQL; relational databases; React front-end a plus.
Java, Kotlin, REST, GraphQL, Relational Databases, React
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Staff Software Engineer - Full Stack - (React, Node)
Boston, Massachusetts, United States
$185k-$215k/yr RemoteFull Time
8+ YOE8+ years software engineering experience; strong full-stack skills with React and Node.js; TypeScript experience; leadership of distributed teams; excellent communication and technical judgment.
React, Node.js, TypeScript, React Native, AWS
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Senior Software Engineer
Waltham, Massachusetts, United States
$147k-$198k/yr OnsiteFull Time
5+ YOE5+ years experience building and shipping high-quality full-stack software; Bachelor's in Computer Science or equivalent; strong JS/TS skills; React/Angular/Vue; Node.js/Express or Python frameworks; UX design basics; AWS/CI/CD; PostgreSQL; Figma; WebGL/Three.js; CAD/CAM knowledge.
Node.js, Express, React, Angular, Vue.js, Python, Django, Flask, AWS, GCP, Azure, PostgreSQL, Figma, WebGL, Three.js, D3, CAD/CAM
3mo
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Senior Software Engineer
Boston or Chicago or Dallas or San Francisco
$120k-$150k/yr OnsiteFull Time
7+ YOE7+ years in full stack software engineering; Python and Node.js; API/microservices experience; front-end frameworks; cloud (Azure/AWS/GCP); AI/RAG knowledge a plus; CI/CD and testing.
Python, Node.js, React, Angular, Docker, Kubernetes, Git, GitHub, Azure DevOps, SQL Server, CosmosDB
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Senior Software Developer
Boston, Massachusetts, United States
$150k-$200k/yr RemoteFull Time
10+ YOE10+ years in .NET (C#) and React; Azure; SQL Server; API design; CI/CD; agile; regulatory experience preferred.
.NET Core (C#), React, TypeScript, Azure, MS SQL Server, OAuth2, JWT, GitHub Actions, Azure DevOps, Docker, Kubernetes, OpenTelemetry, App Insights, CI/CD
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Senior Software Engineer
Waltham, Massachusetts, United States
HybridFull Time
5+ YOE5+ years of software development; full-stack SaaS experience; clean, maintainable code; strong communication; able to work in fast-paced environment.
TypeScript, JavaScript (Node.js), Python, Java, React, Spring Boot, Express, Flask, REST, GraphQL, gRPC, Protobuf, AsyncAPI, PostgreSQL, MongoDB, Cassandra, Redis, Docker, Kubernetes, Helm, Ansible, Terraform, OpenTofu, OpenTelemetry, Prometheus, Splunk, Dynatrace, Git
3mo
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Senior Software Engineer
Boston, Massachusetts, United States
$130k-$150k/yr HybridFull Time
6+ YOE6+ years software development experience; expert in Node.js, React, Python; experience with AWS, containerization, CI/CD, REST APIs, and databases; strong communication and problem-solving.
Node.js, React, Python, Java, AWS, Docker, Kubernetes, CI/CD, RESTful APIs, SQL, NoSQL
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Senior Engineer, Software Infrastructure
Wilmington, Massachusetts, United States
$110k-$152k/yr OnsiteFull Time
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
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Senior Software Engineer - Computational Platform
Watertown, Massachusetts, United States
$154k-$200k/yr HybridFull Time
6+ YOE6+ years software engineering experience; cloud (GCP/AWS), Terraform, Kubernetes/Docker, data modeling, Python, React/JavaScript, strong engineering best practices and security.
GCP, AWS, Terraform, Kubernetes, Docker, Python, React, JavaScript, SQL, ETL, LLMs
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Senior Software Engineer
Boston, Massachusetts, United States
$90k-$180k/yr HybridFull Time
Wellington Management: Manages investment portfolios and provides financial research for institutions.
5+ YOE5+ years building production software; proficiency with SDLC tools, Java/Python/TypeScript/Node.js, React/Angular, SQL and relational DBs, AWS, and experience integrating AI-assisted development.
JIRA, Git, Jenkins, GitHub Actions, VS Code, GitHub Copilot, Claude Code, AWS, Java, Python, TypeScript, JavaScript/Node.js, React, Angular, SQL, PostgreSQL, Oracle, MySQL
1mo
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Senior Software Engineer
Colorado Springs or Boston
$130k-$160k/yr HybridFull Time
5+ YOEUS citizen with active Secret clearance, B.S. in STEM, 5+ years software development with depth in scientific/numerical computing; proficiency in TypeScript/React and a high-performance language; experience with parallelism and CI/CD.
DifferentialEquations.jl, SatelliteToolbox.jl, ONNX.jl, CZML, CesiumJS, Resium, Recharts, Plotly.js, GitHub Actions, PackageCompiler.jl, electron-builder, HTTP.jl, TypeScript, React, Julia, C++, Rust, Fortran, Python, ONNX Runtime
1mo
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Senior Software Engineer (Fullstack)
New York City or Boston or United States
$185k-$225k/yr HybridFull Time
5+ YOE5+ years building production software (2+ years at a startup preferred). Proficiency with React, Next.js, Node.js (TypeScript), React Native, Postgres, AWS, Terraform, Redis. Familiarity with AI/ML concepts.
React, Next.js, Node.js, TypeScript, React Native, Postgres, AWS, Terraform, Redis
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Senior Software Engineer
Colorado Springs or Boston
HybridFull Time
5+ YOEUS citizen with active Secret clearance, BS in a STEM field, 5+ years software development experience in scientific/high-performance computing, proficiency with TypeScript/React and Julia or other high-performance languages, parallelism and REST API experience.
TypeScript, React, Julia, C++, Rust, Fortran, Python, NumPy, Numba, Cython, DifferentialEquations.jl, SatelliteToolbox.jl, PackageCompiler.jl, ONNX.jl, ONNX Runtime, CesiumJS, Resium, CZML, Electron, electron-builder, HTTP.jl, GitHub Actions, Recharts, Plotly.js, NSIS, AppImage
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Senior Software Engineer
New York City or Boston
$172k-$224k/yr HybridFull Time
10+ YOE10+ years full-stack experience with React Native, TypeScript, Node.js, AWS, Kubernetes; experience designing multi-agent AI workflows, mentoring engineers, and operating CI/CD and observability practices.
React Native, TypeScript, Node.js, AWS, Kubernetes, Datadog, Zoom, Gemini Enterprise Stack, LinkedIn