Android Engineer (Platform)

About Welltech

A future with Welltech

Welltech’s purpose is to move each and every body to start and stay well for life! Every trend, every piece of feedback and data, every experiment, and innovative solution we introduce, fuels the way we unlock wellness for and with our users. While appreciating and celebrating who they are, we strive to help them make turn small choices into lasting joyful habits. And that makes us proud of every step they take on their journey to living well, every day.

Disrupting industry

We are an international tech company with origin from Ukraine, founded in 2015, and a fast-growing global player with five hubs across Europe. With more than 220 million installs of our apps, Welltech offers disruptive, engaging fitness and wellness solutions. We are genuinely committed to creating value and ensuring a workplace where our talented, diverse individuals feel they belong as we shape the future of the health and fitness industry. Everything we do is driven by our purpose and guided by integrity, a testament to the trust we build- today and tomorrow.

Spread across five dynamic hubs in Cyprus, Poland, Spain, Ukraine and the UK, with a team of over 700+ #wellmakers, we provide an opportunity for everyone who is passionate about making an impact in the wellness industry.

Position

This is a unique opportunity to build a platform from scratch, setting company-wide standards and driving the direction of our mobile technology. In the Mobile App Platform team, you will architect our next-gen mobile platform, directly shaping how millions experience wellness. You will design and implement core platform solutions, empowering product teams to rapidly build and customize applications. You will also own the mobile infrastructure blueprint, enabling teams to focus on features and experiments, free from underlying infrastructure concerns. This role demands a strong problem-solver who thrives on building, as you'll define a platform that scales to millions, creating a lasting legacy in mobile wellness.

Key responsibilities:

• Help build and evolve scalable mobile infrastructure, tooling, and shared components to support multiple Welltech mobile apps

• Contribute to libraries, SDKs, and CI/CD pipelines that improve developer experience and apps quality

• Work closely with product teams to support the adoption of platform solutions

• Write clean, testable, and performant code with an eye on maintainability

• Support modularization, reusability, and standardization efforts across mobile apps

• Identify common problems across apps and solve them in a consistent, scalable way

• Participate in code reviews, documentation, and knowledge sharing within the team

• Collaborate cross-functionally with backend, frontend, security, and infrastructure teams to enable seamless integration and platform alignment

Your qualification

• Solid Android development experience with Kotlin, including fundamentals like coroutines, networking, persistence, and performance optimization

• Experience with Jetpack Compose and modular, scalable UI architectures

• Excellent understanding of architectural patterns (MVVM, MVI, DI) and modular codebases

• Proven ability to craft clean, maintainable, and scalable code

• Strong ability to design for reliability, scalability, and performance

• Experience working with CI/CD pipelines and tooling (e.g., Bitrise, Fastlane, Gradle, custom scripts)

• Strong advocate of design for testability, automated testing, and shift-left quality mindset

• Passion for improving developer experience and shipping high-quality code

• Product-minded approach with a bias for pragmatic, maintainable solutions

Will be a plus

• Experience with backend development

• Experience with backend-driven UI

• Hands-on experience with OWASP mobile security best practices

• Track record of building internal tools, shared components, or platform features at scale

• Experience implementing and advocating for methodologies that support fast iteration and high dev productivity (e.g. eXtreme Programming, Trunk Based Development, CI/CD mindset, BDD, TDD)

What we offer

• 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!

Additional details

Candidate journey: HR call ---> Live Coding ---> System Design ---> Cultual fit interview

Check out some of our products

Muscle Booster — https://musclebooster.fitness/ 

Yoga-Go — https://yoga-go.io/ 

WalkFit - http://walkfit.pro