Full Stack Engineer

Company DescriptionRessortir Capital is a venture studio dedicated to supporting first-time and early-stage founders within the African tech ecosystem. By offering financial backing, human resources, and strategic guidance, we help transform innovative ideas into scalable, resilient businesses. Our portfolio startup called Xtron is a next-generation, cross-functional crypto exchange platform built for speed, security, and seamless user experience. Our backend runs on a robust PHP stack, while our mobile applications are built with React Native and TypeScript, offering users a unified and powerful digital asset trading experience.The platform is scaling fast and we’re looking for a versatile Full Stack Software Developer who can work across our backend and mobile app, contributing to architecture, features, performance, blockchain integrations, and long-term stability.Role OverviewAs a Full Stack Developer at Xtron, you will:Develop, improve, and maintain our PHP backend, APIs, and microservices.Work on our cross-platform React Native (TypeScript) mobile application.Collaborate with cross-functional teams (product, UI/UX, QA, blockchain, security).Implement new trading logic, wallet, and blockchain-related features.Ensure high-performance systems and smooth mobile user experiences.Troubleshoot technical issues, optimize performance, and maintain code quality.Participate in architectural decisions, product roadmaps, and innovative solutions.Tech Stack You’ll Work WithBackend:PHP (Laravel)REST APIsMySQLRedis / CachingQueue systemsAWSDockerMobile App:React NativeTypeScriptReduxPush NotificationsMobile payments & authentication workflowsCrypto & Blockchain (Nice to Have):Experience with custodial & non-custodial wallet flowsUnderstanding of blockchain APIs (Tatum, Alchemy, Chainstack, Solana/Web3 libs)Crypto deposit/withdrawal flowsWeb3 signing & wallet security best practicesRequirements4+ years professional experience in PHP backend development.3+ years experience with React Native + TypeScript.Proficient in Unit and Integration testing within PHP frameworkStrong expertise with RESTful services and scalable API design.Experience integrating third-party APIs (payment, blockchain, identity).Solid understanding of mobile app lifecycle and cross-platform patterns.Proficiency with Git, CI/CD, and Agile development processes.Ability to debug, test, and write clean, maintainable code.Strong problem-solving skills and a startup-friendly mindset.Bonus PointsExperience in crypto exchanges, wallets, or blockchain development.Knowledge of security, encryption, KYC/AML integration, or transaction flows.Experience deploying apps to both Apple App Store and Google Play Store.Familiar with real-time data, sockets, or market feed integrations.What We OfferCompetitive compensationFlexible working hoursOpportunity to work on an innovative Web3/FinTech productGrowth-oriented environmentHigh ownership and impact on product directionHow to ApplyIf you're excited about building the future of crypto trading and want to work with a fast-moving team, send your CV, GitHub/Portfolio link, and previous project examples to: admin@xtron.online or apply through the job post here on Linkedln.