> Markdown version of [/jobs/ext/1999407-full-stack-engineer-senior-lead-id41561-2-500-signing-bonus](https://www.wearedevelopers.com/jobs/ext/1999407-full-stack-engineer-senior-lead-id41561-2-500-signing-bonus). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Full Stack Engineer (Senior/Lead) Id41561 ($2,500 Signing Bonus) - **Company:** Agileengine - **Location:** Sevilla, Spain (Remote available) - **Salary:** €30,000.0 - **Contract:** Permanent contract - **Skills:** Artificial Intelligence, Mobile Application Development, Mobile Application Software, Node.Js, Software Engineering, ReactJS, Firebase, Information Technology, Low Latency, React Native - **Published:** August 9, 2026 - **Apply:** https://www.buscojobs.com.es/full-stack-engineer-senior-lead-id-41561-2-500-signing-bonus-en-sevilla-ID-366214126 ## About the Role 5+ years of experience building scalable systems. Solid experience with ReactJS, NodeJS for web and React Native for mobile development. Proven ability to deliver solutions with high throughput and low latency requirements. Demonstrated experience designing and implementing complex business solutions. Ability to develop features independently without design guidance, taking ownership from concept to implementation. Upper-Intermediate English level. Nice to Haves Experience in Startups. Experience with Firebase Functions. ## Description Full Stack Engineer (Senior/Lead) ID***** ($2,500 signing bonus)Haga clic en "Solicitar" a continuación para enviar su candidatura.Asegúrese de que su CV está actualizado y de que ha leído primero las especificaciones del puesto.AgileEngine is an Inc. **** company that creates award-winning software for Fortune 500 brands and trailblazing startups across 17+ industries.We rank among the leaders in application development and AI/ML, and our people?first culture has earned us multiple Best Place to Work awards.Why Join UsJoin us and receive a $2,500 signing bonus!If you're looking for a place to grow, make an impact, and work with people who care, we'd love to meet you.About the RoleAs a Full Stack Senior/Lead Engineer at AgileEngine, you'll join a cross?functional, agile team to build new features and enhance product experiences for millions of users.You'll contribute across web and mobile platforms, improve performance, and ensure seamless user interactions.What You Will DoWork independently and provide guidance to other team members.Ensure smooth operation and performance of both web and mobile applications.Identify, troubleshoot, and resolve bugs efficiently.Design, develop, and implement new features across web and mobile platforms.Must Haves5+ years of experience building scalable systems.Solid experience with ReactJS, NodeJS for web and React Native for mobile development.Proven ability to deliver solutions with high throughput and low latency requirements.Demonstrated experience designing and implementing complex business solutions.Ability to develop features independently without design guidance, taking ownership from concept to implementation.Upper-Intermediate English level.Nice to HavesExperience in Startups.Experience with Firebase Functions.Perks and BenefitsProfessional growth: Accelerate your professional journey with mentorship, TechTalks, and personalized growth roadmaps.Competitive compensation: We match your ever?growing skills, talent, and contributions with competitive USD?based compensation and budgets for education, fitness, and team activities.A selection of exciting projects: Join projects with modern solutions development and top?tier clients that include Fortune 500 enterprises and leading product brands.xqbhyrxFlextime: Tailor your schedule for an optimal work?life balance, by having the options of working from home and going to the office - whatever makes you the happiest and most productive.Employment DetailsSeniority level: Mid?Senior levelEmployment type: Full?timeIndustries: IT Services and IT ConsultingReferrals increase your chances of interviewing at AgileEngine by 2x.#J-*****-Ljbffr ## Related Videos - [Stop using Node.js like in 2020! What changed and what you can do today with Node.js](https://www.wearedevelopers.com/videos/100011-stop-using-node-js-like-in-2020-what-changed-and-what-you-can-do-today-with-node-js) - [Watch Tests Go Brrrr! : Getting Started with Cypress in ReactJS](https://www.wearedevelopers.com/videos/282-watch-tests-go-brrrr-getting-started-with-cypress-in-reactjs) - [Intro to Flutter Development](https://www.wearedevelopers.com/videos/170-intro-to-flutter-development) - [Your next 10x engineer isn't in your city. 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