Source Job

US Unlimited PTO

  • Design, develop, and maintain high-quality web applications focused on real-time voice, messaging, and communication features at scale.
  • Build and optimize frontend systems using JavaScript, HTML, CSS, and modern frameworks such as React, ensuring performance and maintainability.
  • Collaborate with cross-functional teams including product, design, and engineering to define, build, and deliver new features end to end.

JavaScript HTML CSS React

20 jobs similar to Senior Web Developer

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Latin America

  • Own the development, end-to-end testing, and code review of high-performance user-facing features using React and modern JavaScript.
  • Architect and rapidly assemble modular UI prototypes, integrating feedback from Product Owners and UX designers to optimize usability.
  • Optimize application performance by collaborating with backend engineers to integrate efficient RESTful APIs and lead evaluation of frontend tools.

CodeRoad provides end-to-end software development services, helping businesses scale with ideal infrastructure solutions. They operate as a nearshore technology services provider, empowering businesses to thrive with staff augmentation, dedicated IT teams, and general software engineering.

US

  • Build pixel-accurate, accessible, responsive interfaces from Figma designs.
  • Write clean, handcrafted CSS/SCSS using modern layout primitives and develop interactive UI in Vanilla JavaScript, plus React/Next where it fits.
  • Wire front-end work into Contentful, Drupal, and WordPress, and lean on AI tooling to squash bugs faster.

Third and Grove is a fully remote full-service digital agency. Our team of talented individuals strives to embody core values of empathy, accountability, excellence, integrity, and curiosity.

US

  • Develop and maintain responsive web interfaces using React, HTML, CSS, and JavaScript.
  • Collaborate with product and data science teams to implement optimized designs across platforms.
  • Write clean, modular code and participate in code reviews to ensure high performance and scalability.

Implicit builds the world's leading AI Knowledge Engine for Maintenance and Support. We are a secure, no-code AI platform transforming complex documentation into structured knowledge, and we seek a part-time frontend engineer to join our diverse team.

India

  • Develop and enhance modern web applications using React and related frontend technologies, collaborating with cross-functional teams.
  • Participate in application architecture design, perform code reviews, and maintain high code quality and performance standards.
  • Integrate frontend applications with RESTful APIs, implement responsive UIs, and adhere to CI/CD best practices.

Jobgether is an AI-powered job matching platform that connects candidates with hiring companies. It uses technology to ensure fair and efficient application reviews, operating as a partner for various job postings.

US

  • Design, build, and maintain modern web applications with a primary focus on front end development, user experience, and accessibility.
  • Contribute to full stack development using ASP.NET Core MVC, with strong ownership of the presentation layer.
  • Implement and extend React, a11y, Typescript, and Next.js-based applications with clean, maintainable component architecture.

Aquia is a digital services firm specializing in cloud infrastructure, cybersecurity, and compliance automation for the U.S. government. Founded by Veterans, it has generated millions in cost savings and was named the 2024 SDVOSB of the Year.

US Unlimited PTO

  • Lead design, architecture, and delivery of complex product initiatives across web and mobile platforms.
  • Build and enhance React and React Native applications used by tens of thousands of veterinary professionals.
  • Mentor engineers, set engineering standards, and influence technical direction across teams.

Vetcove modernizes the veterinary software and pet healthcare experience through a procurement marketplace, ecommerce, and practice management system. Backed by Y Combinator and top investors, it's a fast-growing, mission-driven company with over 25,000 hospitals using its platform.

India

  • Develop, test, and deploy code for prototypes and new product features, collaborating on rapid prototyping with modern technologies.
  • Participate in code reviews, documentation, and knowledge sharing while experimenting with AI, machine learning, and emerging technologies.
  • Communicate progress and technical concepts to stakeholders, adapt quickly to feedback, and contribute to continuous improvement of engineering best practices.

Twilio is shaping the future of communications by delivering innovative solutions to hundreds of thousands of businesses and empowering millions of developers. The company has a remote-first culture with a strong focus on connection and global inclusion.

Global

  • Collaborate as part of an agile team to deliver a scalable, highly available global voice platform.
  • Develop and maintain software solutions using JavaScript, Java, Spring, and related technologies.
  • Troubleshoot, maintain, and support the production environment in line with DevOps principles.

Miratech is a global IT services and consulting company that helps visionaries change the world by supporting digital transformation for some of the world's largest enterprises. With over 1,000 full-time professionals operating across 25 countries, the company has a culture of relentless performance and has achieved sustained growth exceeding 25% annually since 1989.

Romania 6w PTO

  • Develop and enhance high-quality frontend features for large-scale web applications using React and TypeScript.
  • Optimize application speed and responsiveness across global markets while refactoring systems for scalability.
  • Collaborate with distributed teams in a fully remote environment to shape frontend architecture and user experience.

Jobgether uses AI-powered matching to connect candidates with job opportunities. The company operates globally and is focused on efficient, fair hiring processes.

Pakistan

  • Develop high-quality software design and architecture using React and JavaScript.
  • Identify, prioritize, and execute tasks in the software development life cycle.
  • Collaborate with internal teams and vendors to fix and improve products.

Moniepoint Inc. is Africa's all-in-one financial platform, helping 20 million businesses and individuals access seamless payments, banking, credit, and business management tools. With over $250 billion in annual transaction value, the company fosters a culture of innovation, teamwork, and growth, prioritizing employee well-being and continuous learning.

Global

  • Work closely with Engineering, Product, Design, and other stakeholders to align on project goals, gather and refine requirements, and ensure seamless execution.
  • Lead the design and implementation of robust, scalable, and maintainable frontend architecture using React, evaluating technical approaches and optimizing performance.
  • Drive development of UI components, services integration, and ensure high code quality through best practices, code reviews, testing, and documentation.

Miratech is a global IT services and consulting company that helps visionaries change the world by supporting digital transformation for some of the world's largest enterprises. With over 99% project success rate since 1989, Miratech retains nearly 1000 full-time professionals across 25+ countries and has a culture of Relentless Performance.

US Unlimited PTO

  • Partner closely with product managers and designers to define and build features that address real user needs and drive meaningful outcomes.
  • Design, build, and iterate on end-to-end product features, seamlessly connecting backend systems with frontend experiences.
  • Develop and maintain backend services and APIs (REST and/or GraphQL) that power user-facing applications and service-to-service interactions.

Modern Health is a mental health benefits platform for employers, offering employees access to one-on-one, group, and self-serve digital resources. Backed by investors like Kleiner Perkins and Founders Fund, the company raised over $170 million, is the fastest entirely female-founded company to reach Unicorn status, and fosters a culture of high empathy, high accountability, and a drive to win.

US

  • Develop, test, and deploy code for prototypes and new product features.
  • Collaborate with team members to solve technical challenges and improve solution design.
  • Experiment with modern tools, frameworks, and emerging technologies.

Twilio shapes the future of communications, delivering innovative solutions to hundreds of thousands of businesses and empowering millions of developers worldwide. The company fosters a remote-first culture with a strong emphasis on connection and global inclusion.

Europe

  • Integrate user-facing elements with server-side logic and write reusable, testable code.
  • Design and implement low-latency, high-availability applications with security and data protection.
  • Create design systems and web components for third-party applications, ensuring SDK compatibility across browsers and frameworks.

Yuno builds payment infrastructure that enables companies to participate in the global market. Founded by payments and tech veterans, the company empowers high-performing teams at major brands with over 1,000 payment methods via a single API.

Global Unlimited PTO

  • Build polished, performant web UIs using React, TypeScript, and modern CSS.
  • Work across the full stack, building and consuming GraphQL/REST APIs and contributing to Rust services.
  • Partner with design and product to shape features, set technical direction, and mentor engineers.

Ditto is redefining how data moves at the edge with a peer-to-peer sync engine for resilient real-time applications. With over $145 million in funding and trusted by organizations like Chick-fil-A, Delta Airlines, and the U.S. military, Ditto is a globally distributed startup committed to diversity and inclusion.

US Unlimited PTO

  • Develop and maintain progressive web applications using modern technologies, contributing to both front-end and back-end development.
  • Collaborate with cross-functional teams to define, design, and ship new features, ensuring high-quality software delivery.
  • Unit-test code for robustness and reliability, and work on bug fixing and improving application performance.

Duluth Trading Company enables hard-working individuals with innovative workwear and gear, emphasizing a digital-first mindset. Founded in 1989, they have a collaborative team culture that values hands-on problem-solving and continuous innovation.

Global

  • Collaborate with a Web Dev Team and Head of Technology on product tasks, split 30% support and 70% development.
  • Design and implement application architecture, perform code reviews, and ensure code quality.
  • Select and implement necessary tools, technologies, and techniques for optimized code.

Kyivstar.Tech is a Ukrainian hybrid IT company and a subsidiary of Kyivstar, one of Ukraine's largest telecom operators. With over 600 specialists, they work on mobile and web solutions, design, development, and support of high-performance systems, fostering an entrepreneurial culture.

  • Collaborate with design, product, and engineering teams to build high-quality frontend solutions for cloud infrastructure.
  • Modernize the customer control panel by migrating legacy templates to React and Tailwind CSS.
  • Build accessible, user-friendly UIs and maintain a reusable component library using tools like Storybook.

Vultr makes high-performance cloud infrastructure easy to use, affordable, and locally accessible for enterprises and AI innovators worldwide. It is the world's largest privately-held cloud infrastructure company, trusted by hundreds of thousands of customers across 185 countries, with a $3.5 billion valuation as of December 2024.

US 14w maternity 8w paternity

  • Deliver impactful full-stack features that benefit Medicare brokers and beneficiaries.
  • Collaborate cross-functionally to provide constructive feedback on design mockups and product scope.
  • Identify and manage technical debt while building robust architectures to support platform scalability.

We are building healthcare tech for a system that desperately needs it, focusing on empowering independent Medicare advisors. We are a fast-growing startup with a talent-dense team, backed by notable investors, and recognized as one of Inc. Magazine's Best Workplaces of 2025.

AZ CO FL GA ID IN IL KS MA MD MN MO NC NM NV NY OH OK OR RI SC TN TX WI

  • Build and maintain features using React, NextJS, and modern Typescript, delivering highly maintainable solutions.
  • Collaborate with senior and agency developers to learn best practices and improve your coding skills.
  • Participate in code reviews, troubleshoot issues, and contribute to technical documentation.

OpenEd is an education technology company that provides customized, world-class learning to students, empowering families across the US. With over 100,000 students served and a top 0.1% employee net promoter score, they have a fast-growing, values-driven culture.