Backend Engineer

Who Are We?

We are Welltech — a global company with Ukrainian roots and a powerful mission: to move everybody to start and stay well for life. Today 25.5 million users have trusted Welltech to help them build healthy habits — a testament to the real value our innovative, engaging wellness solutions deliver every day. 🌍

With five hubs across Cyprus, Ukraine, Poland, Spain and the UK and a diverse, remote-friendly team of 700+ professionals, we continue to scale rapidly. Our innovative apps — Muscle Booster, Yoga-Go and WalkFit — empower millions to transform their lifestyles and unlock their personal wellness journeys.

Welltech is where your impact becomes real. And our values clearly attest to that: we grow together, we drive results, we lead by example and we are well-makers.

If this looks like you and you thrive in a fast-paced environment, you’ll fit right in at Welltech. Let’s build wellness for millions together.

What We're Looking For

We are seeking a product-minded, impact-driven Backend Engineer to join our Cortex team, which is building the Content and Video backbone that powers every app in our ecosystem (YogaGo, MuscleBooster, WalkFit, etc.) with curated, reusable, and engaging content.

This is a great opportunity for someone with experience in Domain Driven Design, cross-functional product development and Engineering Excellence. In this role, you’ll collaborate with product, engineering, data and content teams in the development of our Content and Video Platform. You’ll be an advocate for highly iterative development approaches, fueling our mission to bring health and wellness to millions.

Key responsibilities:

• Product Delivery and support, following our Principle of Think it, build it, run it.

  • You will work on the delivery of the platform, collaborating with Product, Engineering, and Content experts starting at the analysis of new capabilities.

  • Collaborate on the inception of the proposed solution via RFCs.

  • Planning and executing delivery with an iterative approach in a data-driven lean environment, embedding quality in doing so adopting XP practices such as TDD, CI/CD.

  • Ultimately releasing and supporting to the utmost operational excellence, incorporating elements such as effective observability, progressive rollouts, with focus on our DORA metrics.

• Win and lose together: Work effectively with teammates and stakeholders to achieve shared goals. Share knowledge openly, communicate clearly, help resolve obstacles, and foster constructive, respectful discussions to solve problems together.

• Be a champion of Engineering Excellence: Advocate for and implement best engineering practices, foster a learning culture, and contribute to strategic technical decisions in your team. Look after scalability, performance, and reliability of systems owned by your team.

• Contribute to System Architecture: Collaborate on designing reliable, maintainable, and scalable systems to support millions of users worldwide.

• Integrate Cloud Services: Leverage AWS services (e.g. Lambda, API Gateway, S3) to build modern, serverless solutions.

• Collaborate Cross-Functionally: Work closely with high levels of engagement with product managers, designers, software engineers, content producers, data experts, and infrastructure teams.

• Prioritize Sustainable Quality: Write clean, maintainable, and scalable code, with a focus on continuous improvement and long-term reliability.
  

Required skills:

• Product Mindset: Proven ability to translate user needs into impactful features with a strong focus on delivering value.

• Backend Engineering Expertise: Strong experience designing and building scalable backend systems in Python with a solid understanding of API design and system architecture.

• Cloud Infrastructure Experience: Familiarity with cloud services, especially AWS (e.g. Lambda, API Gateway, S3, CloudFormation).

• Database Knowledge: Experience working with relational databases such as Postgres, and familiarity with SQLAlchemy or other ORMs.

• Engineering Culture Contributor: You help improve team workflows and elevate code quality by contributing to shared practices and fostering collaborative ways of working.

• End-to-end ownership and high agency when dealing with ambiguity: You thrive in ambiguous environments and get excited about figuring out solutions to complex problems, and taking a leading role in executing on them.

• Communication Skills: Strong English communication skills to work effectively with an international, agile team.

We’d be especially excited to meet you if you:

• Have a background on working with Video Platform.

• Have a passion for testing, automation, continuous integration and observability.

• See yourself not as someone defined by a single technology or niche, but as a versatile, product-oriented engineer.
  
  

Candidate journey: ⭕️ Recruiter call --> ⭕️ Live Code Review --> ⭕️ System Design interview

• 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 — https://musclebooster.fitness/ 

Yoga-Go — https://yoga-go.io/ 

WalkFit -http://walkfit.pro