3w
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UI Engineer
Boston or New York City or Atlanta
$80k-$100k/yr HybridFull Time
5+ YOE5+ years front-end development with JavaScript/TypeScript and React/Angular, NodeJS experience, RESTful API and SQL knowledge, automated UI testing, EM, mentoring and strong communication skills.
JavaScript, TypeScript, NodeJS, HTML, CSS, Material UI, Styled Components, ES6, React, Angular, Redux, Next.js, RTK Query, NPM, Nx, Bitbucket, Python, SQL
1mo
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UI Engineer
Boston or New York City
HybridFull Time
5+ YOE5+ years frontend experience; strong JavaScript/TypeScript, HTML5, and modern CSS; experience with React or Angular, Storybook.js, RESTful/GraphQL APIs, design systems, accessible and scalable UI architecture.
React, Angular, JavaScript, TypeScript, HTML5, CSS, Storybook.js, RESTful APIs, GraphQL
2mo
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Senior UI Software Engineer
Mansfield, Massachusetts, United States
$132k-$190k/yr HybridFull Time
7+ YOE7+ years front-end UI development; expert in Angular, TypeScript, Blazor, C#, HTML/CSS; building enterprise web apps; AI/LLM integration knowledge.
Angular, Blazor, TypeScript, C#, HTML/CSS, RESTful APIs, .NET, Python, AI services
3w
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Software Engineer, UI
Boston, Massachusetts, United States
$50-$75/hr OnsiteContract
2+ YOE2+ years software engineering experience preferred; proficiency in Angular, JavaScript/TypeScript, RxJS, HTML/CSS/SCSS; experience with test automation, REST APIs, cloud and container tech; bachelor’s degree preferred.
Angular, JavaScript, TypeScript, RxJS, HTML, CSS/SCSS, Playwright, Cypress, REST APIs, Java, AWS, Docker
1d
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Senior UI Developer (React & TypeScript)
Woonsocket, Rhode Island, United States
$68k-$114k/yr HybridFull Time
Bachelor's in CS/IT/Engineering, strong React 18+, TypeScript, JavaScript (ES6+), state management (Redux Toolkit/Context/Zustand), app telemetry, testing (Jest/React Testing Library), and frontend performance expertise.
React 18+, TypeScript, JavaScript (ES6+), Redux Toolkit, Context API, Zustand, Application Insights, OpenTelemetry, Jest, React Testing Library
1d
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Senior UI Developer (React & TypeScript)
Woonsocket, Rhode Island, United States
$68k-$114k/yr HybridFull Time
Bachelor's degree in CS/IT/Engineering or related, strong experience with React 18+, TypeScript, JavaScript (ES6+), state management, telemetry, testing, and frontend performance.
React 18+, TypeScript, JavaScript (ES6+), Redux Toolkit, Context API, Zustand, Application Insights, OpenTelemetry, Jest, React Testing Library
2mo
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Sr. Software Engineer - UI/UX (Qt/QML)
Newton or Mounds View
$125k-$187k/yr OnsiteFull Time
4+ YOEBachelor’s or Master’s/PhD with relevant experience in UI/UX; strong Qt/QML/C/C++ and Python; Linux, Docker, CI/CD; real-time data; collaboration with UX teams; production-quality software in healthcare setting.
Qt/QML, C++, Python, Linux, Docker, CI/CD, Figma
2mo
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Sr. Software Engineer - UI/UX (Qt/QML)
Newton or Mounds View
$125k-$187k/yr OnsiteFull Time
4+ YOEBachelor's degree with 4+ years’ experience or Master’s with 2+ years’ experience or PhD with no experience; strong Qt/QML, C++, Python; UI/UX focus; production-level software in regulated environment.
Qt, Qt/QML, C++, Python, Linux, Docker, CI/CD, UI/UX tools, Figma
1mo
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Product Engineer (UI-Focused) — Horizon
San Francisco or New York City or Washington or Boston or Los Angeles or Seattle or Denver or Chicago or Atlanta or United States
$172k-$242k/yr RemoteFull Time
5+ YOE5+ years full-stack engineering with front-end focus; strong proficiency in TypeScript and React; experience shipping user-facing products; familiarity with Model Context Protocol and AI/LLM tooling; on-call/incident participation.
Python, TypeScript, React, TanStack, Model Context Protocol (MCP), Claude Code, Codex
1mo
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SENIOR SOFTWARE ENGINEER
Methuen, Massachusetts, United States
OnsiteFull Time
8+ YOE8+ years of software development; OO design; C++ multi-thread; motion control; UI development a plus; agile; travel up to 5%; capable of independent and collaborative work.
C++, Multithreading, UI development, Motion control software, Kinematics and control algorithms, Agile
1mo
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Software Engineer - UI/UX (Fall 26' Intern)
Natick, Massachusetts, United States
$28-$32/hr OnsiteInternship
Currently enrolled or recent graduate in CS/CE or similar; fluent in C#, Java, or JavaScript; experience with Figma or Adobe XD; front-end frameworks like WPF, React, or Angular; strong OOP and MVVM skills; Windows front-end/.NET WPF or Unity experience useful; valid work eligibility required.
C#, Java, JavaScript, Figma, Adobe XD, WPF, React, Angular, .NET, Unity, Model-View-ViewModel
3mo
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Principal Software Engineer - Frontend, Developer Experience
San Francisco or Phoenix or Denver or Austin or Jacksonville or Bridgeport or Boston or New York City or Atlanta
RemoteFull Time
5+ YOEDevelop frontend UIs with TypeScript/React; collaborate with product/design; contribute to architecture and testing; mentor colleagues.
TypeScript, React, GraphQL, Node.js
1mo
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Software Engineer: Web Developer
Cambridge, Massachusetts, United States
$110k/yr OnsiteFull Time
Bachelor's degree in CS or related; strong HTML, CSS, JavaScript; experience with Vue, React or Angular; CMS knowledge (WordPress/Joomla); UI/UX and graphic design skills; REST API development; Agile and test-driven practices.
HTML, CSS, JavaScript, Vue, React, Angular, WordPress, Joomla, REST API, CI/CD, git, GitHub, GitLab, Jenkins
3mo
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Senior Applications Developer
Boston, Massachusetts, United States
$108k-$136k/yr OnsiteFull Time
4+ YOE4 of 7: Windows/Unix development, UI approaches, XML/SOAP/Web Services, REST/Angular, OOP, InterSystems IRIS/Caché/Ensemble, deployment of intranet/extranet
InterSystems IRIS, Caché, Ensemble, XML, XSL, SOAP, Web Services, HTML, JavaScript, REST, Angular
3mo
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Senior Developer/Analyst - Information Services
Boston, Massachusetts, United States
$90k-$100k/yr OnsiteFull Time
10+ YOE10+ yrs in Python/Django and ColdFusion web development; strong front-end skills; MS SQL Server; API integration; UI/UX familiarity; team mentoring; full stack DevOps basics.
Python, Django, ColdFusion, MS SQL Server, HTML5, CSS3, JavaScript, JSON, Bootstrap, Datatables, Gulp, Yarn, NPM, Canva, Figma, Adobe XD
2mo
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Android Engineer II (Client Platform)
Boston, Massachusetts, United States
$125k-$175k/yr OnsiteFull Time
2+ YOE2–4 years Android development; Kotlin and Android frameworks (Jetpack, Compose); strong UI/layout, localization, REST APIs; debugging and performance; Git.
Kotlin, Jetpack, Compose, REST APIs, Git, Android SDK
1d
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Principal Software Engineer/Developer
Smithfield, Rhode Island, United States
$132k-$166k/yr OnsiteFull Time
3+ YOEBachelor's or Master's in CS/Engineering/IT/IS plus 5 years (Bachelors) or 3 years (Masters) experience; expertise in automation for UI, API, DB testing using Selenium, Cucumber, RestAssured, Karate, Java; CI/CD and DevOps tools experience.
Selenium WebDriver, Selenium Grid, TestNG, Java, JavaScript, JUnit, Cucumber BDD, RestAssured, Karate, Playwright, MongoDB, PostgreSQL, Redis, Kafka, Git, Jenkins, Jira, Qtest, DataDog, Maven, JMeter, Appium, Eclipse, IntelliJ IDEA
2w
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Senior Full-Stack Software Engineer
Acton or Cranberry Township
OnsiteFull Time
5+ YOEBachelor's in CS or related,5+ years building software with C#, .NET, C++; experience with network protocols, hardware interfaces, APIs, and desktop UI development.
C#, .NET, C++, TCP/IP, UDP
2mo
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Software Engineer II (Frontend)
San Francisco or Atlanta or Austin or Boston or Chicago or Dallas or Denver or Houston or Jacksonville or Los Angeles or Miami or New York City or Phoenix or Portland or Sacramento or Salt Lake City or San Diego or Seattle or Washington, D.C. or Ottawa or Toronto or Vancouver or Mexico City
$103k-$186k/yr HybridFull Time
4+ YOE4+ years frontend software development; strong TS/JS/React; Next.js; Rails familiarity; API integration; accessibility; testing; A/B testing; AI tools.
TypeScript, JavaScript, React, Next.js, Ruby on Rails, REST, GraphQL, Redis, Kafka, MySQL, Terraform, CI/CD, Monorepos, UI Libraries, AI Tools
1mo
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Frontend Engineer (Boston)
San Francisco or Boston or Cambridge
$150k-$225k/yr HybridFull Time
3+ YOE3+ years building production React apps, strong TypeScript and Next.js experience, UI polish, performance, accessibility, RESTful APIs, SQL familiarity, and ability to work with design and backend services.
React, TypeScript, Next.js, Ruby on Rails, Postgres, RESTful APIs, SQL, LLMs, EHRs
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