Build and optimize user-facing features with a strong emphasis on frontend performance, usability, and conversion
Collaborate with the Head of Marketing to implement experiments, landing pages, funnels, and growth initiatives
Develop and maintain programmatic landing page systems that generate thousands of SEO-optimized pages from structured data
CitizenShipper is a two-sided marketplace connecting people who need items transported with drivers already making those routes. They build efficient, trustworthy logistics solutions powered by intuitive user experiences and data-driven decision making.
Take ownership of reducing and managing a large frontend backlog.
Develop, maintain, and optimize a React-based single-page application.
Diagnose and improve frontend performance, including Lighthouse metrics and Core Web Vitals.
Smart Working connects skilled professionals with global teams for long-term, remote roles. They foster a genuine community, valuing growth and well-being in a remote-first environment, empowering employees to thrive personally and professionally.
Collaborate cross-functionally with product teams, designers, and engineers.
Improve web performance at scale.
Reddit is a community-driven platform where users submit, vote, and comment on various topics. With over 100,000 active communities and millions of daily active users, they are one of the internet’s largest sources of information and foster open conversations.
Own feature development end-to-end for our mobile application
Collaborate with design, backend and product to deliver new features
Maintain a high standard of code quality and performance
Trust Wallet is the leading non-custodial cryptocurrency wallet, trusted by over 200 million people worldwide to securely manage and grow their digital assets. They aim to give individuals the freedom to own their assets and safely navigate Web3 with industry-leading technology.
Be instrumental in building the foundational capabilities that power Calendly’s product ecosystem.
Define and evolve Calendly's shared React architecture, package ecosystem, and developer experience.
Contribute to engineering standards, strengthen the reliability of the frontend infrastructure, and build resilient tooling.
Calendly provides a platform that millions of people rely on for scheduling. They are in a period of exciting product growth and offer opportunities to learn and grow alongside talented colleagues.
Own and evolve core frontend libraries and the application platform that Vannevar's products are built on
Design and implement shared infrastructure: routing, authentication, error handling, UI components, and cross-app patterns
Improve developer experience: faster local dev, better build pipelines, and clearer documentation
Vannevar is a defense technology company building AI to deter adversaries. They are a small agile team combining world-class engineers with veteran strategists who bring deep expertise in defense and tradecraft.
Act as the technical engine within the Digital Trading & Merchandising team, responsible for maintaining and evolving the frontend infrastructure across key digital platforms.
Deliver high-performance, accessible, and conversion-optimised user interfaces while supporting the organisation’s ambition to become a digital-first enterprise.
Translate commercial requirements into scalable frontend solutions, working closely with Product Owners, UX/UI designers, backend engineers, and SEO stakeholders.
Smart Working believes your job should not only look right on paper but also feel right every day. They connect skilled professionals with outstanding global teams and products for full-time, long-term roles and help you discover meaningful work with teams that invest in your success.
Design, develop, and maintain frontend applications using NuxtJS or React.
Lead the development of complex user interfaces and contribute to frontend architecture decisions.
Collaborate with designers, product managers, and backend developers to translate requirements into solutions.
Smart Working connects skilled professionals with global teams for full-time, long-term roles, breaking down geographic barriers. They offer a remote-first environment where employees are valued and can thrive both personally and professionally.
Architect and implement high-impact full-stack web features end-to-end using modern technologies
Collaborate with cross-functional teams to deliver scalable and high-quality web experiences
Debug and resolve technical issues across frontend, backend, and infrastructure layers
Scopely is a leading video game and global interactive entertainment company, home to many of the world’s most beloved and enduring experiences. Founded in 2011, Scopely is powered by its exceptional team and a distinctive tenet-driven culture.
Architect & Own: Take complete ownership of designing and building our modern front-end stack from the ground up using TypeScript and React (e.g., Next.js).
Flawless User Experience: Build responsive, accessible UIs capable of handling complex data and real-time interactions without dropping a frame.
Performance-First Mindset: Write exceptionally clean, consistent code. Advanced state management, optimized bundle sizes, and fast load times.
Deepslate is building Speech to Speech Voice AI models that sound and act indistinguishable from a human, believing everyone should be able to use it. Backed by top-tier investors from the Tech and AI sectors, as well as a major German VC fund, they are incredibly well-funded and moving fast.
Building new frontend components and maintaining existing ones using modern AI tools.
Converting wireframes into fully functioning app features and enhancing the user experience.
Optimizing the web app for speed and scalability, while ensuring cross-browser compatibility.
Ignition is the leading revenue generation platform for accounting and professional services businesses, aiming to spark greater efficiency and profitability. They empower 7,250+ businesses to reach their full revenue potential with a global workforce spanning Australia, Canada, New Zealand, the Philippines, US and the UK.
Leverage React and Typescript to craft clean, beautiful, maintainable, extensible, and secure code.
Refactor and modernize our codebases to increase maintainability, performance, and rapid iteration.
Drive innovative problem-solving on challenging engineering problems, including reusable and responsive UI components, app global state management, validations and error handling, theme management, rendering performance, and JS bundle optimizations.
Knack helps businesses build custom apps and internal tools without writing code. It's a no-code platform trusted by thousands of small and mid-sized companies to create everything from CRMs and client portals to job tracking systems and resource schedulers.
Build features and define how they are built, taking ownership of major technical components.
Partner with Product Managers to co-author requirements and shape scope, ensuring engineering feasibility.
Mentor junior and mid-level engineers, instilling quality-first habits within the team.
Sensor Tower provides insights into the digital marketing landscape. They foster a fast-paced startup mindset, focusing on architecting high-visibility, rapid-release products.
Lead complex frontend initiatives, partnering with multiple teams to deliver experiences used by millions.
Provide technical leadership by shaping architecture and helping engineers execute effectively.
Improve performance, reliability, and maintainability across Medium’s web platform.
Medium is building the best place for reading and writing on the internet, where thoughtful ideas can find an audience and writers are rewarded for depth. It is a fully remote company with teammates across the U.S. and France, guided by principles like Humans First and Deepen Understanding.
Architect cross-platform experiences using React and Next.js.
Scale and maintain a shared design system across multiple applications.
Optimize performance focusing on SEO, accessibility, caching, and bundle size.
Jobgether is a platform that uses AI to match job applicants with roles. They ensure applications are reviewed quickly and objectively using an AI-powered matching process.
Design, build, and scale robust frontend architectures using modern frameworks and standards (e.g., React, TypeScript, Next.js, Three.js).
Create interactive user interfaces for real-time 3D visualizations, dashboards, and mobile-responsive tools.
Architect complex frontend data flows and state management, optimizing client-side performance, integrating with various APIs (REST/GraphQL), and handling large datasets.
Doxel brings computer vision and AI to construction, giving teams real-time visibility into progress, risk, and execution. With a rapidly growing team of engineers, scientists, construction veterans, and Enterprise go-to-market teams, they're driven to help their customers win.
Build reusable, modular, and well-documented frontend components using modern JavaScript frameworks
Translate Figma and Sketch designs into fast, accessible, and polished digital experiences
Collaborate with designers, project managers, and fellow engineers across the full project lifecycle — from kickoff through deployment
Webstacks is a website operations and growth marketing agency established in 2020. They have quickly grown into a 45-person company because of their innovative website operations methodology, strong partnerships, and high-growth clients.
Design and develop the user interface of the application in React and TypeScript.
Implement and optimize state management (Redux, Context API, local state).
Develop and maintain unit and integration tests (Jest, React Testing Library).
HELPLINE specializes in user support outsourcing and the implementation of an augmented employee experience powered by AI, where human expertise and technology mutually enhance each other. With 2,500 employees serving over 200 clients, they operate in France and worldwide, projecting a turnover of €200M+ in 2025.
Develop, maintain, and optimize scalable front-end applications using React
Translate product and design requirements into high-quality, responsive UI components
Collaborate with cross-functional teams (Product, Design, Backend, QA) to define and deliver new features
Impiricus is an AI-powered HCP Engagement Engine transforming how life sciences companies support physicians. They ethically connect HCPs to pharma resources and reduce go-to-market costs. Named the #1 fastest growing company in North America, Impiricus fosters a culture of innovation and impact.