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# Full Stack Engineer (Senior/Lead) Id41561

- **Company:** Agileengine
- **Location:** Barcelona, Spain (Remote available)
- **Contract:** Permanent contract
- **Skills:** Artificial Intelligence, Mobile Application Development, Mobile Application Software, Node.Js, Software Engineering, ReactJS, Firebase, Low Latency, React Native
- **Published:** September 14, 2026
- **Apply:** https://www.buscojobs.com.es/full-stack-engineer-senior-lead-id-41561-en-barcelona-ID-371223631

## About the Role

WHAT YOU WILL DO Work 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 HAVES 5+ years of experience building scalable systems Solid experience with ReactJS and 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 PERKS AND BENEFITS Professional growth : Accelerate your professional journey with mentorship, TechTalks, and personalized growth roadmaps Competitive compensation : We match your

## Description

Full Stack Engineer (Senior/Lead) 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 US 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 ROLE As 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 DO Work 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 HAVES 5+ years of experience building scalable systems Solid experience with ReactJS and 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 PERKS AND BENEFITS Professional 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 Flextime : Tailor your schedule for an optimal work?life balance, with options to work from home or in the office #J-*****-Ljbffr


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