Source Job

$54,275–$76,000/yr

  • Design and develop new features for SaaS products on both the frontend and backend.
  • Take a technical lead role within the squad, driving excellence.
  • Improve the code base with refactoring, bug fixes, and optimization.

TypeScript JavaScript NodeJS MongoDB React

20 jobs similar to Senior Fullstack TypeScript Developer

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  • Build new features end-to-end (frontend + backend) by working hand-in-hand with a strong Product team
  • Improve the codebase (refactoring, bug fixes, optimization)
  • Mentor fellow developers, share knowledge, and raise the bar

Lemlist is a global B2B SaaS business with one mission: help any business grow.

  • Develop high-quality, responsive web applications using TypeScript, Javascript, React, Express.
  • Design and implement server-side APIs, data models, and business logic using mainly Express framework
  • Create client-side function-based React components, hooks, stories, and tests to interact with your server-side work

Deel is the all-in-one payroll and HR platform for global teams, built for the way the world works today. They are among the largest globally distributed companies in the world, with a team of 7,000 spanning more than 100 countries, and a connected and dynamic culture.

US

  • Implement new features and functionality within Localize’s core product.
  • Develop and maintain REST APIs with Node/Express/MongoDB that power the frontend application.
  • Modernize and evolve an existing codebase to improve patterns and architecture.

Localize's platform is used by 700+ companies to automate the translation of their web and mobile applications to bring their products & services to new markets.

Spain

As a Senior Full-stack Engineer, you’ll play a key role in shaping and evolving our Echo Design System. You’ll help build and maintain the component libraries and documentation that every frontend engineer at Typeform relies on. You’ll also collaborate closely with Product Design, bringing an engineering perspective to design reviews and sign-offs.

Typeform is a leading provider of innovative survey and data collection solutions, known for our flagship product, Typeform.

US Unlimited PTO

  • Design, build, and deliver high-quality features that drive customer and business impact
  • Collaborate cross-functionally with product and design to turn complex problems into elegant, user-focused solutions
  • Balance iteration speed with long-term maintainability and system health

Fieldguide is modernizing how cybersecurity, privacy, and financial audits are done by building software that streamlines the work. They are a remote-first company headquartered in San Francisco, CA and value diversity of backgrounds and experiences, and they’re deliberate about building an inclusive, humble, and high-performing culture.

$200,000–$250,000/yr
US

  • Lead end-to-end delivery and drive technical direction across a real-time, high-scale product surface.
  • Architect, build, and evolve systems spanning backend services and modern web UIs that power live calling workflows.
  • Partner closely with Product and Design, shaping the roadmap as engineering, product, and design are equal partners.

Orum's AI-powered suite frees salespeople to do what they do best: connect, listen, and sell.

Latin America

Contribute to the full lifecycle of modern web applications, from front-end development to cloud-ready backend services. Build intuitive, high-quality user interfaces using React, TypeScript, HTML, CSS, and component libraries. Write server-side logic using JavaScript/TypeScript on Node.js, including data processing and application logic.

At EX Squared LATAM, we collaborate with innovative digital teams to build cutting-edge products and high-performing engineering environments.

$115,777–$140,797/yr
Canada Unlimited PTO

Help design and develop innovative orchestration features end-to-end. Own and drive enhancement in the orchestration frontend. Work on complex systems and a variety of programming languages and technologies.

dbt Labs is the pioneer of analytics engineering, helping data teams transform raw data into reliable, actionable insights.

  • Lead the design and development of React + TypeScript interfaces.
  • Collaborate with UX and Product to iterate rapidly on incomplete designs and flows.
  • Build and maintain component libraries, reusable UI patterns, and scalable front-end architecture.

Mobile Wave Solutions is a professional services company specializing in software development as a service.

$53,778–$64,534/yr
Europe 5w PTO

Lead full-stack development across modern JavaScript ecosystems, working on impactful web applications from concept to deployment. Architect scalable solutions, guide technical decisions, and collaborate closely with cross-functional teams. Drive technical excellence and contribute to innovative, fast-moving projects across Europe.

Jobgether is a platform posting this job on behalf of a partner company and uses AI-powered matching process to ensure applications are reviewed objectively.

$165,446–$186,126/yr
US Canada Unlimited PTO

As a Senior Software Engineer II, you will be a key contributor to building and maintaining the fullstack web infrastructure that supports our educational platform. You'll work across the entire technology stack, from frontend user interfaces to backend APIs and databases. You'll ensure that teachers, parents, and administrators have powerful, intuitive tools to support young learners.

Khan Academy is a nonprofit on a mission to provide a free, world-class education to anyone, anywhere reaching millions of students every month.

  • Design, develop, and maintain full-stack features using Python on the backend and React with TypeScript on the frontend.
  • Build and evolve backend APIs and services to support complex workflows and integrations.
  • Contribute to system architecture, ensuring scalability, security, and maintainability.

Our client builds digital platforms for local governments, helping modernize public-sector operations with secure, scalable web applications.

$69,751–$87,778/yr
UK 7w PTO 26w maternity 4w paternity

  • Drive the design and implementation of software solutions.
  • Solve complex technical challenges and improve system performance.
  • Mentor junior engineers and foster a positive team culture.

Genio creates beautifully simple learning tools that boost knowledge, skills, and confidence and is one of the fastest-growing tech companies in the North.

US

  • Develop, test and iterate on product features spanning frontend, backend, and cloud infrastructure.
  • Work closely with product, design, QA, and business teams to translate requirements into production-ready features.
  • Design and build integrations with third-party services such as social media, eCommerce, AI and financial services.

They are a VC-funded creator marketplace app connecting eCommerce brands with everyday social media users. They are a high-growth, remote-first startup that offers a flexible 4- day work week, with a small, collaborative team.

US

  • Develop, maintain, and optimize server-side components, APIs, and microservices.
  • Collaborate with front-end developers to integrate elements and ensure seamless user experiences.
  • Design and implement high-performance applications with reusable, testable, and efficient code.

Jobgether is connecting talent with opportunities by leveraging AI. They focus on quick, objective, and fair reviews of applications against core requirements.

Europe 6w PTO

Design, build, and ship product features across the full stack, including backend, frontend, APIs, and integrations. Collaborate with product managers and designers to create polished, user-friendly experiences. Ensure solutions are scalable, secure, and meet enterprise requirements.

Jobgether is a Talent Matching Platform that partners with companies worldwide to efficiently connect top talent with the right opportunities through AI-driven job matching.

North America

  • Accelerate the execution of high-impact initiatives on the Cards team.
  • Ship features end-to-end, working across the TypeScript/NextJS/GraphQL stack.
  • Collaborate with a fast-paced, high-autonomy team to deliver meaningful product impact.

Keep provides businesses with a comprehensive suite of cross-border banking services, offering everything from credit cards to deposit accounts.

$155,656–$225,160/yr
Global

  • Build cutting-edge features for Poe, focusing on enhancing the Developer API and enabling third-party developers.
  • Prototype and implement new product features from ideation to production, using modern web technologies.
  • Collaborate with cross-functional teams to create innovative features and developer experiences with our APIs.

Quora’s mission is to grow the world's collective intelligence through Quora and Poe platforms.

US

  • Design and build scalable services and APIs for web applications.
  • Architect and maintain robust backend systems and database models.
  • Analyze product requirements and produce high-quality, production-ready code.

Solace is a healthcare advocacy marketplace that connects patients and families to experts who help them understand and take charge of their personal health.

  • Design, develop, and maintain scalable frontend solutions for the calendar module using React and TypeScript.
  • Collaborate with cross-functional teams to define, design, and ship new features.
  • Optimize performance and ensure high-quality user experiences.

ClickUp is building a converged AI workspace, unifying tasks, docs, chat, calendar, and enterprise search, all supercharged by context-driven AI.