Top Software Engineer Jobs

Build and maintain responsive, high-performance user-facing React/Next.js applications for privacy-focused web3 products. Collaborate with backend engineers, identify and fix performance bottlenecks, participate across the product lifecycle, write tested production-quality code, and iterate quickly on UX and developer-facing frameworks.

Build and maintain the company website, client-facing portal, and internal web apps. Design and structure web pages, implement UI enhancements, optimize performance and scalability, collaborate with backend engineers (Go), ensure brand-consistent design, and mentor teammates to drive product excellence.

Build and optimize a canvas-based browser app ingesting and visualizing large data streams. Architect data pipelines, rendering loops, and memory-constrained solutions. Implement performance-critical UI using TypeScript, Canvas/WebGL/DOM, low-level web APIs, workers, and potentially WebAssembly. Measure and tune rendering, memory, and responsiveness.

Build and evolve a scalable React-based web UI for a fleet management platform. Migrate legacy components, design reusable front-end architectures, integrate with REST APIs, and create interactive data visualizations. Collaborate with stakeholders, backend engineers, and designers to deliver performant, test-covered user experiences.

Lead delivery of enterprise solutions combining Microsoft Power Platform and modern front-end frameworks. Guide architecture, integrations with Azure, AI-assisted development, and ensure scalable, secure deployments. Manage and mentor developers, drive practice growth, shape governance/ALM, and act as a trusted advisor during client discovery and prototyping.

Join a small founding team to build and ship a cross-platform iOS/Android social marketplace app. Implement JS-based mobile features, photo filters and video editing, translate designs to production, integrate with backend and AI services, and own the full development lifecycle in a fast-moving startup aiming to launch in 4–6 months.

Build and maintain a shared frontend platform and design-to-production pipeline: application shell, data layer, routing, auth, component library, agent-driven code generation, observability, and packaging so product teams ship without hand-writing frontend code.

Build and enhance LangSmith frontend features: implement user-facing UI with React and TypeScript, create reusable components, translate designs into high-quality code, optimize performance, and collaborate with backend engineers and designers to improve observability and evaluation workflows for LLM applications.

Design and build data-driven front-end interfaces and user flows, partner with product and data science teams to implement solutions, develop data dashboards (Power BI), and iterate based on customer feedback.

Senior Front-End UI Developer (onsite in San Ramon) focused on UI development and test automation. Key responsibilities include working with Java, Selenium-driven automation, RESTful web services and API testing to deliver and validate front-end solutions on a 12-month contract.

Develop and maintain UI/front-end features using HTML5, CSS, AJAX, jQuery, and AngularJS. Integrate with Java/J2EE back-end systems (Spring, Hibernate). Work on front-end implementation, debugging, and cross-team coordination for a 6+ month engagement in New York.

Develop and maintain world-class web applications using React.js and Node.js. Build web services (REST), apply software engineering fundamentals, and use unit testing, TDD, functional testing, and performance practices.

Design and implement high-quality, performant frontend interfaces for a complex enterprise system. Translate product and design specs into production-grade React/TypeScript UI, integrate with backend APIs, contribute to architecture and design system, and ensure performance, accessibility, and security across multiple user personas and permission levels.

Design, develop, configure, test, and deploy front-end web applications using TypeScript/JavaScript and frameworks like Angular or React. Collaborate with analysts, PMs, and clients, participate in code/design reviews, write documentation and runbooks, build monitoring/automation tools, and support application infrastructure, deployments, and performance improvements.

Founding-team senior engineer to architect and build core platform components. Work with CEO/CTO to develop scalable distributed backend systems and frontend using React, Node.js and TypeScript. Implement solid coding practices, testing, CI/CD, and agile workflows while iterating rapidly in an early-stage fintech startup.

Own and evolve the front-end architecture for a high-throughput, real-time trading app using Next.js, React, and TypeScript. Build pixel-accurate, accessible, responsive UIs under strict performance budgets; optimize rendering, state management, data flow, and bundle size for sub-second interactions. Integrate with REST and WebSocket APIs, lead end-to-end feature development, set engineering standards, mentor engineers, and contribute across the stack when needed.

Design, build, and maintain high-performance Next.js + TypeScript front-end applications. Implement responsive, accessible UIs, optimize rendering and bundle size, integrate with REST and WebSocket APIs, contribute to back-end work as needed, uphold testing and documentation standards, and mentor junior engineers.

As a Senior Frontend Software Engineer, you'll lead the development of major features using React and TypeScript, ensuring performance and integration with backend systems. You'll also manage releases, improve team efficiency, and contribute to a customer-centric product experience.

As a Front End Web Developer, you will build and design web applications, integrate with back-end services, and enhance usability and performance for users accessing complex geospatial data.

Early-stage frontend-focused product engineer to own web and mobile experiences (React, React Native, Expo). Design conversational AI-native interfaces for financial planning, build in TypeScript across stack, define frontend architecture and component system, use agentic engineering tools, contribute to multi-model AI orchestration, and iterate quickly with founders and users.

Lead design and implementation of scalable, performant frontend architectures and reusable UI components for consumer apps. Own core user journeys, optimize performance and accessibility, set frontend standards, mentor engineers, drive architectural decisions, and use AI-first tooling to ship features at scale.

The Frontend Developer will build and maintain large-scale enterprise applications using Angular, lead frontend development efforts, and collaborate with cross-functional teams.

As a visualization front end engineer, you will develop engaging web applications and data visualizations using advanced JavaScript and frameworks, collaborate with teams, and optimize user experience.

Develop and maintain user interfaces and interactive web applications, ensuring usability and accessibility while collaborating with design and backend teams. Lead technical deliverables and optimize front-end performance in an Agile environment.

As a Senior Frontend Engineer, you'll build and maintain a fraud prevention platform UI using ReactJS, collaborating with backend teams and ensuring code quality through tests and CI/CD processes.