Build and own the Hermes Agent mobile apps across iOS and Android, from UI to APIs.
Ship native-quality experiences with smooth interaction, offline resilience, and push notifications.
Collaborate with Product, Design, and AI teams to integrate new model capabilities into the mobile app.
Nous Research is an AI research company building intelligent agents. The team is small and fast-moving, with a focus on shipping polished mobile experiences.
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.
Design and implement high-quality native mobile SDKs for embedded wallet experiences.
Own SDK architecture, APIs, release management, and developer documentation end-to-end.
Build secure components supporting wallet operations, cryptography, and blockchain interactions.
This company builds mobile infrastructure powering the next generation of digital asset and financial applications. It is a distributed, fast-moving organization that values developer experience, technical excellence, and continuous growth.
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.
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.
Architect, design, and develop native iOS applications for First Due's emergency response platform.
Collaborate with cross-functional teams across US and India time zones.
Establish mobile CI/CD pipelines and mentor developers on best practices.
First Due provides fire and EMS agencies with end-to-end software solutions to prevent first responder injury or death. They offer a fully remote workplace with a culture of innovation, collaboration, and comprehensive benefits.
Build mobile applications using React Native, Flutter, Swift, or Kotlin.
Integrate device capabilities and backend services via APIs.
Debug, optimize, and release apps to App Store and Google Play.
US Security & IT is a partner company specializing in security and IT solutions. They are seeking independent mobile app developers for diverse projects, offering flexible remote work.
Build mobile applications using React Native, Flutter, Swift/SwiftUI, or Kotlin/Jetpack Compose.
Integrate native device capabilities and connect with backend APIs.
Manage full mobile development lifecycle from architecture to deployment.
The partner company focuses on innovative technology projects across multiple industries. It is a collaborative organization that values independent developers and delivers next-generation digital solutions.
Design, build, and maintain scalable React Native applications for iOS and Android.
Integrate REST and GraphQL APIs, authentication services, and third-party SDKs.
Own features from initial design through release, monitoring, and continuous improvement.
VERSANT is a media and entertainment company that owns iconic brands like CNBC, USA Network, and Golf Channel. It is a publicly traded company with a large team and a culture of innovation.
Design and develop mobile frameworks and features for Smartsheet's native applications on both Android and iOS platforms.
Contribute to the full software development lifecycle (SDLC)—defining, designing, implementing, testing, and deploying new features.
Work autonomously, overseeing essential features and collaborating cross-functionally with product managers, UI designers, senior developers, and testers.
Smartsheet is a global leader in Collaborative Work Management that empowers teams to manage work and scale solutions, now uniting human teams with AI agents. With a market cap of $10bn, the company has grown to over 70 engineers in Bulgaria, fostering a culture of innovation, impact, and continuous learning.
Take senior-level ownership of full-stack product development across web and mobile applications.
Lead the technical direction and end-to-end development of the mobile application.
Build and maintain scalable frontend and backend systems using TypeScript, React, Node.js, and AWS.
The company is a fast-growing consumer AI platform serving students across multiple international markets. It has a small engineering team and a remote-first, collaborative, and highly autonomous culture.
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 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.
Design, develop, and evolve Thunderbird’s iOS application with a focus on performance, reliability, and security.
Collaborate with mobile engineers, product management, and UX to deliver high-quality iOS experiences.
Own projects from investigation through delivery, ensuring alignment with mission and technical best practices.
MZLA Technologies Corporation builds privacy-respecting communication and productivity tools, including the open-source Thunderbird email app used by over 20 million people. The company is a small but growing team of 60+ people distributed across seven countries, with a collaborative, inclusive culture rooted in open-source principles.
Bridge web technologies (Ionic/Capacitor) with native hardware, focusing on deep BLE integrations and AI-accelerated development.
Architect and build native bridges for seamless JavaScript-to-hardware communication, handling high-frequency data streams.
Lead Android implementation with robust background services and BLE management, then design cross-platform APIs for iOS expansion.
3Pillar is a premier destination for senior software engineers, partnering with industry leaders to transform urban living, media, and healthcare. They focus on revolutionizing the tech landscape with a collaborative culture.
Design, build, and maintain high-quality mobile applications focused on health and wellness.
Collaborate with cross-functional teams and mentor engineers to promote scalable engineering practices.
Work with modern technologies including AI-powered tools and health sensor integrations.
This company builds innovative digital solutions at the intersection of consumer technology, health, and connected devices. It fosters a mission-driven, collaborative culture with a global and accomplished team.
Lead, mentor, and grow a team of mobile engineers building mission-critical applications.
Define technical direction across iOS, Android, and hybrid mobile technologies.
Collaborate with product stakeholders to translate customer needs into reliable offline-first releases.
This partner company builds reliable, mission-critical mobile applications that support first responders, prioritizing reliability and offline-first experiences. The workplace culture respects diversity, supports inclusive practices, and offers remote work with opportunities for career growth.
Lead the design, architecture, and implementation of critical user-facing features and backend services from ideation to deployment.
Partner with Product Managers and Designers to shape the product roadmap and translate business requirements into scalable technical solutions.
Mentor engineers, drive technical strategy, and write clean, maintainable code while improving engineering standards and processes.
Canopy is committed to creating safer environments for healthcare workers by developing and deploying critical safety technology, including wearable duress systems and real-time location systems. They are a tight-knit group of passionate builders, designers, and product thinkers who value curiosity, ownership, and a commitment to quality.
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.
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.