Full Stack Engineer (Senior/Lead) ID38801

4 300 - 7 700 USDNet per month - B2B

Full Stack Engineer (Senior/Lead) ID38801

JavaScript

28022, Madryt +4 Locations

AgileEngine

4 300 - 7 700 USD
Net per month - B2B
Full-time
B2B
Senior
Remote

Tech stack

    English

    B2

    ReactJS

    advanced

    NodeJS

    advanced

    React Native

    advanced

    Mobile Development

    regular

Job description

AgileEngine is an Inc. 5000 company that creates award-winning software for Fortune 500 brands and trailblazing startups across 17+ industries. We rank among the leaders in areas like 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


We are looking for a Senior Full Stack Engineer to join a fast-growing health and wellness platform with millions of users worldwide. You’ll work in a cross-functional, agile team, building and improving features for both web and mobile applications. This role offers the opportunity to enhance performance, deliver seamless user experiences, and make a real impact on a product that helps people reach their wellness goals.


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, 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, by having the options of working from home and going to the office – whatever makes you the happiest and most productive.




Meet Our Recruitment Process


Asynchronous stage – An automated, self-paced track that helps us move faster and give you quicker feedback:

  • Short online form to confirm basic requirements

  • 30–60 minute skills assessment

  • 5-minute introduction video


Synchronous stage – Live interviews

  • Technical interview with our engineering team (scheduled at your convenience)

  • Final interview with your future teammates


If it’s a match — you’ll get an offer!

Published: 20.08.2025
Office location