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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 ForWe are seeking a product-minded, impact-driven Senior Backend Engineer with strong experience in Domain Driven Design, cross-functional product development and Developer Productivity. In this role, you'll collaborate with product, engineering, and data teams in optimizing our growth channels. 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:Cross-functional collaboration: Work closely with high levels of engagement with product managers, designers, software engineers, content producers, data experts, and infrastructure teams.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 decisionsBe a champion of Engineering Excellence: Advocate for and implement best engineering practices, foster a learning culture, and influence strategic technical decisions in your team. Ensure scalability, performance, and reliability of systems owned by your teamRequired Skills:Strong product mindset that creates business value: Proven ability to drive the building of successful products and/or platforms used by product teams, working closely with Product Managers, Designers, Domain experts to create value for customersDomain Driven Design: comprehensive system design skills with proven impact building new and refactoring existing large-scale systems powering customer-facing productsSolid technical foundation: Extensive hands-on experience in backend engineering, with deep expertise in both relational and non-relational databases, as well as AWS infrastructure (e.g., Lambda, API Gateway, SQS, SES, CloudFormation, CloudWatch).Strong Python expertise: Proven track record in building efficient, scalable, and reliable backend systems using Python.System-level impact: Track record of influencing the technical direction of your team and of effective collaboration with adjacent teams, with the ability to highlight risks, trade-offs and propose efficient solutionsEngineering culture excellence and Agent of change: Demonstrated ability to shape and elevate engineering culture, methodologies, and best practices in your teamDeveloper productivity: Experienced in maximising developer productivity through the right technical choices, highly iterative development practices to achieve high pace of data-driven experimentationEnd-to-end ownership and 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.Ready to make a transformative impact on global wellness? Join us at Welltech and help millions of users lead healthier, happier livesCandidate journey Recruiter call --> Live code review --> System Design Interview --> Meet the Hiring ManagerWhy You'll Love Working at Welltech: 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 realityCheck out some of our productsMuscle Booster — https://musclebooster.fitness/Yoga-Go — https://yoga-WalkFit -
