Build and scale core parts of the mobile and web apps in React Native, covering the entire betting lifecycle.
Investigate and resolve critical issues in the React Native client, putting guardrails in place to prevent recurrence.
Lead design reviews for cross-platform initiatives, calling out trade-offs and risks before they become incidents.
Underdog makes sports more fun by building fantasy sports, sports betting, and prediction markets in one app. They are a fast-growing sports company valued at $1.3B with a culture that values caring, pushing, and performing.
Build a React Native application from scratch for iOS and Android, defining its architecture and technical standards.
Integrate with existing APIs and develop key user flows, managing releases and submissions to the App Store and Google Play.
Optimize performance, stability, and user experience, owning the product’s long-term development after launch.
The company builds a ticket search platform for sports and music events, aggregating offers from multiple providers to allow users to compare prices and explore interactive venue maps. It is a bootstrapped startup with a culture of fast decision-making, close collaboration, transparent communication, and a real opportunity to influence the product.
Collaborate with product and design teams to develop innovative cardholder experiences across web and mobile platforms.
Lead the development of React Native-based SDKs and applications, ensuring high performance and seamless integration across platforms.
Architect and implement reusable components, optimize performance, and define technical roadmaps for high-quality UI experiences.
Marqeta is an embedded finance platform that enables companies to issue cards and manage payment operations in real time, powering well-known brands like Block, Cash App, and Uber. The company is publicly traded, serves nearly 80% of Americans weekly, and fosters a flexible, innovative culture with a Flex First work model.
Owns the entire mobile platform: two React Native applications for organizers and attendees, shipping to iOS and Android.
Manages full mobile lifecycle: development, testing, pipeline management, and store releases.
Operates independently, touches APIs, and contributes to platform consolidation.
Brushfire is an event management software-as-a-service platform that provides solutions for ticketing, registration, virtual events, and event apps. The company is fully remote, with a diverse team that values open communication and collaboration, and last year powered over 30,000 events worldwide.
Lead migration of legacy JavaScript code to TypeScript and architect new features for React Native apps.
Optimize for offline-first functionality with local databases and caching, leveraging Redux and Expo.
Design GraphQL queries, collaborate with cross-functional teams, and mentor junior engineers.
3Pillar is an AI transformation partner helping enterprises build AI-native products and intelligent agents. With teams across North America, Europe, Latin America, and Asia, we foster a remote-first culture focused on innovation and collaboration.
Build polished user experiences across React Native, web, iOS, and Android, primarily developing new mobile features in React Native.
Maintain and evolve existing native iOS and Android applications, turning user feedback and rough product ideas into fast, intuitive experiences.
Work across the stack when needed, including APIs, native integrations, debugging, and existing Swift/Kotlin code.
Mix helps curious people discover, save, and share the best of the web through personalized, ad-free feeds across web and mobile. The company is a small, agile team that values product-minded engineers, shipping polished experiences, and close collaboration.
Build and ship production iOS and Android features in React Native + TypeScript, owning the full release pipeline with Expo and EAS.
Turn Figma designs into fast, polished components with smooth animations, backed by clean API integration and solid performance.
Ensure high performance and reliability through unit testing and end-to-end QA.
DualEntry is building an AI-native ERP to automate accounting for finance teams. In just 2 years, they have raised $100M+ from top venture firms and serve customers from startups to public companies.
Take ownership of an existing mobile application, reviewing its codebase and architecture to complete development and launch on iOS and Android.
Independently manage the full technical lifecycle, including troubleshooting, integrations, cloud infrastructure, and release preparation.
Work with React Native, Firebase, Google Cloud, and third-party APIs to ensure reliable functionality from development through post-launch support.
Jobgether is an AI-powered job matching platform that connects candidates with hiring companies through automated matching. The company uses artificial intelligence to review applications and streamline the hiring process, focusing on efficiency and fairness.
Build and scale patient-facing mobile applications using React Native across iOS and Android.
Own end-to-end delivery of impactful features, collaborating with Product, Design, and backend engineers.
Evolve mobile architecture, improve engineering quality, and mentor teammates to ensure long-term platform success.
Rula is a mental health company dedicated to providing evidence-based, compassionate care and reducing stigma around mental health. They are a remote-first organization with a focus on inclusion and well-being, operating across most U.S. states.
Build and ship production-ready iOS and Android features using React Native and TypeScript.
Own the complete mobile release lifecycle, including Expo workflows and store submissions.
Translate Figma designs into polished, responsive interfaces with smooth animations and strong performance.
DualEntry is an early-stage AI-native company building high-impact mobile experiences. The company operates as a fully remote, high-growth startup with a focus on engineering ownership, speed, and continuous learning.
Execute new features and improvements across the React Native mobile app and Next.js website.
Use Claude Code for AI-assisted development while critically reviewing all generated code for correctness and performance.
Collaborate with a team of 3-4 frontend developers on requirement analysis, task estimation, and code quality.
The Dyrt is the largest digital camping platform in the world, offering the only camping app with all U.S. camping locations. With over 300 million annual impressions, the company is built by campers for campers and prides itself on a down-to-earth, driven team.
Implement features, fix bugs, and resolve production incidents across iOS and Android, extending to backend and web frontend.
Own mobile initiatives end-to-end, from requirements to store release.
Act as the technical escalation point for complex mobile problems and review code for correctness.
Fundraise Up is a global fundraising platform that powers fast, seamless donations for nonprofits. With a distributed team of 160+ product professionals and 80+ engineers, they serve leading NGOs like UNICEF and the Alzheimer's Association.
Develop cross-platform mobile apps using React Native and native iOS/Android SDKs to interface with EEG headbands and wearables.
Design and implement UX workflows for clinical trial participants and at-home diagnostic patients, ensuring high-fidelity data capture.
Own the user experience, performance, and reliability of mobile features, collaborating with product designers and platform teams.
Beacon Biosignals develops at-home EEG platforms for clinical development and precision diagnostics for neurological disorders. The company is a small, mission-driven team with a collaborative culture focused on improving patient care.
Design and develop mobile products using React Native and TypeScript across diverse user environments and authentication flows.
Own the full product lifecycle from problem definition to deployment and iteration.
Shape the mobile experience for global identity verification, ensuring security and trust.
Hopae builds a private, secure digital identity platform for verifying real people across borders. Backed by top global investors, the company operates across Seoul, Paris, Luxembourg, and San Francisco with over 10 nationalities.
Lead the delivery and ongoing development of Masabi's native passenger applications across iOS, Android, and Web, integrating the Justride SDK and public APIs.
Own technical implementation, design discussions, and code reviews, setting engineering quality standards while managing team coordination and delivery planning.
Support and grow a team of engineers through coaching, feedback, and development conversations, fostering a collaborative and inclusive team culture.
Masabi drives the fare payment revolution, powering journeys for millions by building fare collection platforms that allow riders to buy and present tickets for public transport seamlessly. The company operates in over 250 locations globally, partnering with major transport players like Uber, and fosters a culture of innovation and passion among a diverse network of employees.
Lead the delivery of quarterly goals for your team, guiding engineers through ambiguity to solve open-ended problems and ensuring support throughout delivery.
Collaborate with product management, design, and analytics to define technical strategy, articulate constraints, and partner on decisions considering risks and trade-offs.
Foster a culture of quality and ownership by setting code review and design standards, mentoring team members, and advocating best practices through writing and tech talks.
Affirm is reinventing credit to make it more honest and friendly, giving consumers the flexibility to buy now and pay later without any hidden fees or compounding interest. It is a remote-first company with a culture of quality and ownership, offering competitive benefits including fully subsidized medical coverage for you and your dependents.