Senior Front-End Engineer (React)
Saviance
Senior Front-End Engineer (React)We are looking for a Senior UI Developer (React) to lead the development of a production-grade user interface for our existing application. This is a greenfield UI initiative, and you'll play a pivotal role in the entire lifecycle—from design to deployment—ensuring a robust, scalable, and high-performance front-end experience.Key ResponsibilitiesLead the design, development, and deployment of a brand-new React-based front-end applicationCollaborate with product managers, UX/UI designers, and back-end engineers to deliver seamless, responsive, and intuitive interfacesTranslate design wireframes and mockups into high-quality, reusable codeBuild scalable component libraries and design systems that ensure consistency and performanceOptimize UI for maximum speed and scalabilityWrite clean, maintainable, and well-tested codeIdentify and troubleshoot performance and usability issuesParticipate in code reviews, technical planning, and architectural decisionsRequired Skills & Experience5+ years of professional experience as a Front-End Developer, with strong focus on React.jsProficiency in JavaScript, TypeScript, HTML5, CSS3, and modern front-end tooling (Webpack, Babel, etc.)Experience with state management libraries (Redux, Context API, etc.)Strong understanding of REST APIs and integration with back-end systemsFamiliarity with UI/UX best practices and accessibility standardsExperience with front-end testing frameworks (Jest, Cypress, etc.)Experience with version control systems like GitAbility to work independently and take ownership of the front-end buildNice to HaveExperience with deployment and CI/CD pipelines for front-end applicationsFamiliarity with design tools such as Figma or SketchKnowledge of performance monitoring tools and debugging techniquesExposure to cloud platforms (e.g., AWS, Azure)
- ...TitleResponsibilitiesWork with our small, yet talented engineering team to improve our world-class e-... ...initiativesHelp define the future of our end-to-end architecture and identify... ...experience with frameworks and technologies like React, Inferno, Vue, nodeJS, PostgreSQL,...Senior
- ...Senior Frontend EngineerThis is a hands-on role where you will write code for product features... ...of the team, you will guide junior engineers and help develop their technical skills.The... ...thinking skills to build end-to-end solutionsPassionate and committed...Senior
- ...same-day prototypes and stronger end-use parts than ever before.Our... ...printing. As part of the software engineering team, you would be helping to... ...are looking for an experienced senior engineer who can help us grow and scale a modern front end stack while contributing to...SeniorLocal area
- ...Anduril Industries is seeking a Senior Frontend Software Engineer to join Lattice for Cyber. You will build a brand-new UX product for offensive cyber missions using modern TypeScript/React and scalable frontend architectures, with an emphasis on pragmatic engineering...Senior
- ...Description An early-stage health tech company is seeking a Full Stack Engineer to join its growing engineering team.This role offers the... ...with modern frontend technologies such as TypeScript, React, and Node Experience working on cloud infrastructure in AWS or...Senior
- ...Senior/Principal Front End EngineerWe are a rapidly growing startup building the first all-in-one restaurant... ...tools for support, services and engineering. This is good for the guest... ...standards and technologies (ES6, HTML5, React, Angular for example), and can apply...Senior
- ...team and other stakeholders - Technical end-to-end design for stories by collaborating... ...orchestration in some cases) using best engineering practices like test-driven development, SOLID... ...capabilities. - Good understanding of React.js, its core principles - lifecycle methods...SeniorContract work
- ...Klaviyo Inc. is seeking a Senior Software Engineer for the PLS team in the US. The role focuses on frontend-heavy, scalable systems using TypeScript, React, Python and Django. You will partner with Product, Design and Data Science to translate complex data and UX problems...Senior
- ...Capital One is seeking a Full-Stack Engineer 4 in Cambridge, MA to drive modernization efforts in a fast-paced, collaborative setting. You will work across distributed microservices, modern frontend and backend stacks, and cloud-native tools to deliver strategic financial...Senior
- ...Capital One in Cambridge, MA is seeking a Full-stack Engineer 5 to lead a portfolio of diverse technology projects. You will mentor developers, drive cloud-based solutions, and collaborate with product managers to deliver scalable, secure systems. Love for modern open...Senior
- ...Front End EngineerWe provide a mobile engagement platform for many of the world's top app... ...experiences.We are seeking a Front End engineer to help develop our web application, which... ...modern and growing front end stack (ES6, React, Redux, Webpack) on a great team, and...Senior
- ...Front End Engineer For The Online Ordering TeamWe are a rapidly growing startup building the first all-in-one restaurant management software... ...Oversee the modernization of our framework from Angular 1 to React.Bring new tools and techniques, e.g. testing, type-checking,...Senior
$150k - $190k
...Senior Mobile App Engineer (React Native) Beacon Biosignals is transforming precision medicine for the brain, from clinical development to clinical care. For Life Sciences partners, we offer the leading at-home EEG platform for clinical development of novel therapeutics...SeniorFor contractorsWork experience placementWork at officeRemote work- ...the system reached a conclusion, not just what it output. As a senior engineer, you'll shape our frontend architecture, mentor other... ...scaling production-grade web applications. ~ Deep expertise in React (or similar frameworks such as Vue or Angular) and strong proficiency...Senior
- ...Senior Frontend EngineerWe are seeking a Senior Frontend Engineer to join our core team. In this role, you'll take ownership of designing and building the user-facing... ...-grade web applications.Deep expertise in React (or similar modern frameworks such as Vue or Angular...Senior
- ...Capital One is seeking a Senior Lead Software Engineer, Fullstack, in Cambridge, MA. You will lead a portfolio of distributed microservices and full... ...engineering and strong experience in Python, TypeScript, React, and AWS. You will mentor teammates, stay current with...Senior
$229.9k - $262.4k
...Senior Lead Software Engineer, Fullstack (Python, Typescript, React, AWS) Do you love building and pioneering in the technology space? Do you enjoy solving complex business problems in a fast-paced, collaborative, inclusive, and iterative delivery environment? At Capital...SeniorFull timePart timeInternshipLocal area- ...Verily Health is seeking a Software Engineer to design, develop, and deliver full-stack features across multiple products. You will propose... ..., and implement solutions using a modern stack including Go, React, and cloud services. The role emphasizes hands-on...Senior
$191k - $253k
...sheet of paper.ABOUT THE JOBAs a Software Engineer in Lattice for Cyber, you will build the... ...at scale.Design and build an extensible React-based component system as a foundation... ...and operating production software.Strong front-end engineering experience in modern...SeniorFull timeWork experience placementImmediate startRelocation- ...Mobi seeks a Senior Frontend Engineer to build AI-driven customer experiences at the intersection of travel and AI. You will craft interactive UIs for AI-powered search, recommendations, and dashboards, collaborating with clients to translate needs into intuitive products...Senior
$155k - $165k
...Senior Full Stack Engineer I (React, Node.JS) About this position Linus Health is a Boston-based digital health company focused on transforming... ...delivery of complex software systems. By combining deep front end technical expertise with strong backend api design abilities...SeniorFlexible hours$140k - $200k
...world impact. About the Role As a Senior Frontend Engineer at Mobi, you will join a highly... ...engagement, and beautifully designed front-end systems, this is your opportunity to make... ...modern frameworks and libraries (e.g., React). Translate UI/UX design wireframes...SeniorFull timeWork at officeLocal areaShift work- ...LangChain, Inc. is seeking an experienced frontend engineer to develop and enhance features on LangSmith, our enterprise platform for... ...teams to improve usability. You’ll own frontend development with React and TypeScript, build reusable components, and optimize performance...Senior
- ...Pragmatike is hiring a Senior UI / Frontend Engineer to build high-quality, data-heavy interfaces for our AI products used by Fortune 500 clients. You will own features end to end, collaborating with design and backend teams to deliver production-ready dashboards at scale...SeniorImmediate start
- ...Senior PeopleSoft Fluid UI Developer – Time and Labor Contract 9/80 Schedule, May be REMOTE, 100% Position is US Citzen ONLY UNCLASSIFIED... ...Designer, PeopleCode, Application Packages, Application Engine, SQL, Event Mapping, Drop Zones, and Integration Broker, and provide...SeniorContract workFor contractorsWork experience placementRemote work
- ...Mobi, a leader in AI-driven travel solutions, seeks a Senior Frontend Engineer to build elegant, interactive user interfaces powering AI-driven... ...and MCP-based apps. Join a team delivering scalable front-end systems at the intersection of travel and AI. #J-18808-LjbffrSenior
$117.5k - $160.2k
Become a part of our caring communityWe are seeking a Senior User Interface Design Engineer to craft intuitive, high-trust digital experiences across our... ...provide clarity for patient care.Key ResponsibilitiesOwn end-to-end design for assigned product verticals — from...SeniorFull timeTemporary workApprenticeshipWork at officeRemote workWork from homeHome office- ...researchers . We are searching for a Senior UI / Frontend Engineer with strong, hands‑on experience building... ...—someone who can own features end to end, collaborate closely with design... ...production‑grade web interfaces using React and TypeScript. Translate product requirements...SeniorLocal areaImmediate startRelocation package
- ...Senior Frontend Software EngineerEngineering | Sydney, Australia | Remote, Remote | Auckland, New ZealandWork with a team of amazing... ...ResponsibilitiesAtlassian is looking for experienced and talented engineers to join our team! These Product and Platform teams are looking...SeniorWork at officeLocal areaRemote work
- 7AI is seeking a senior frontend engineer to design and build the user-facing components of our AI-native cloud platform, turning complex cybersecurity capabilities into accessible interfaces. You will shape the frontend architecture, mentor other engineers, and collaborate...Senior
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