Urgent! Senior Fullstack Engineer - Local Job Opening in Madrid
Overview Who Are We?
Welcome to Welltech—where health meets innovation! As a global leader in Health & Fitness, we’ve crossed over 220 million installs with life-changing apps designed to boost well-being for millions.
Our mission is to improve the health of millions of people through intuitive nutrition trackers, powerful fitness solutions, and personalized wellness journeys—powered by a diverse team of over 700+ professionals across 5 hubs.
Why Welltech?
Imagine joining a team where your impact on global health and wellness is felt daily.
We strive to be proactive wellness partners for our users while continually evolving ourselves.
Today we are embarking on a journey to
reshape our product into a highly personalized, coach-like experience
that provides holistic care to our users across all aspects of wellness and fitness.
To accomplish this, we are shaping a new team on a mission to provide our users with world-class wellness and fitness content through the new product experience.
It’s a
greenfield opportunity
to disrupt the wellness & fitness industry.
We are looking for a product-minded, impact-driven engineer to join us on this journey.
What We're Looking For We’re seeking a product-minded, impact-driven
Senior Full Stack Engineer
who thrives at the intersection of impact and innovation.
You’ll help architect and build an end-to-end product experience, from backend systems to frontend interfaces, and collaborate closely with design, product, and data to move fast and learn even faster.
You bring
backend
expertise ( Python
preferably or a language-agnostic approach), strong
frontend fundamentals
( React
or similar), and a bias toward rapid learning through experimentation.
While not required, we’d be especially excited if you’re curious about or experienced in mobile development.
You’ll be an advocate for highly iterative development approaches, data-driven decision-making in your team fueling our mission to bring health and wellness to millions.
Key responsibilities
Shape a Greenfield Product:
Build and evolve both frontend and backend systems for a brand-new wellness platform integrating video, content, data, and user interactivity.
Own the Full Stack Development:
Take end-to-end ownership from designing APIs and building interfaces to connecting cloud services and instrumenting analytics.
Lead Frontend Development:
Deliver responsive, performant UIs using TypeScript and modern frameworks like React or Next.js.
Drive Rapid Prototyping:
Build lovable prototypes and MVPs to test product hypotheses quickly, iterating based on real user feedback and data.
Collaborate Cross-Functionally:
Partner with product managers, designers, data experts, and content teams to bring cohesive, user-centric experiences to life.
Balance Quality & Speed:
Maintain a clean, scalable codebase while shipping fast and learning fast.
Mentor & lead by example : Provide guidance to team members, lead team level product and engineering initiatives, influence coding standards, support your team in making critical decisions.
Required skills
Product Mindset:
Proven ability to translate user needs into impactful product features, with a strong focus on delivering value.
Backend Engineering:
Strong experience designing and building scalable backend systems.
Proficient in
Python
or similar languages (e.g., Kotlin, Go, Java), with a solid understanding of API design, data modeling, and system architecture.
Frontend Familiarity:
Experience with modern frontend frameworks like React and TypeScript.
Comfortable collaborating and architecting client-side features.
Cloud Infrastructure Experience:
Familiarity with cloud services, especially
AWS
(e.g. Lambda, API Gateway, S3, CloudFormation).
Full-Stack System Design:
Ability to architect and implement reliable, maintainable systems across the stack.
Fast Iteration and Experimentation:
Experience in environments that favor rapid prototyping, testing, and learning.
Engineering Culture Contributor:
You mentor peers, improve team workflows, and elevate code quality through strong practices and collaboration.
Nice to have
Familiarity or interest in
mobile development
(React Native, Flutter) or building experiences involving
video, multimedia, or streaming .
Candidate journey:
⭕️ Recruiter call ----> ⭕️ Live Code Design Review ----> ⭕️System Design Interview -----> ⭕️ Meet the hiring manager
✨ Why You’ll Love Being Part of Welltech:
Grow Together: Join a culture that champions both personal and professional growth.
Here, you’ll thrive as we learn, evolve, and succeed together.
Lead by Example: No matter your role, your leadership matters.
Every team member is empowered to inspire and make an impact.
Results-Driven: We’re all about achieving meaningful outcomes.
It’s not just about the effort, but the difference we make every day.
We Are Well-Makers: Be part of a movement that’s creating a healthier, happier world.
Together, we make well-being a reality!
Check out some of our products
Muscle Booster —
—
-
✨ Smart • Intelligent • Private • Secure
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Unlock Your Senior Fullstack Potential: Insight & Career Growth Guide
Real-time Senior Fullstack Jobs Trends in Madrid, Spain (Graphical Representation)
Explore profound insights with Expertini's real-time, in-depth analysis, showcased through the graph below. This graph displays the job market trends for Senior Fullstack in Madrid, Spain using a bar chart to represent the number of jobs available and a trend line to illustrate the trend over time. Specifically, the graph shows 80629 jobs in Spain and 26120 jobs in Madrid. This comprehensive analysis highlights market share and opportunities for professionals in Senior Fullstack roles. These dynamic trends provide a better understanding of the job market landscape in these regions.
Great news! Welltech is currently hiring and seeking a Senior Fullstack Engineer to join their team. Feel free to download the job details.
Wait no longer! Are you also interested in exploring similar jobs? Search now: Senior Fullstack Engineer Jobs Madrid.
An organization's rules and standards set how people should be treated in the office and how different situations should be handled. The work culture at Welltech adheres to the cultural norms as outlined by Expertini.
The fundamental ethical values are:The average salary range for a Senior Fullstack Engineer Jobs Spain varies, but the pay scale is rated "Standard" in Madrid. Salary levels may vary depending on your industry, experience, and skills. It's essential to research and negotiate effectively. We advise reading the full job specification before proceeding with the application to understand the salary package.
Key qualifications for Senior Fullstack Engineer typically include Informática Y Tecnología and a list of qualifications and expertise as mentioned in the job specification. Be sure to check the specific job listing for detailed requirements and qualifications.
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Here are some tips to help you prepare for and ace your job interview:
Before the Interview:To prepare for your Senior Fullstack Engineer interview at Welltech, research the company, understand the job requirements, and practice common interview questions.
Highlight your leadership skills, achievements, and strategic thinking abilities. Be prepared to discuss your experience with HR, including your approach to meeting targets as a team player. Additionally, review the Welltech's products or services and be prepared to discuss how you can contribute to their success.
By following these tips, you can increase your chances of making a positive impression and landing the job!
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