Senior Backend Engineer

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  • Contract Full-time
  • Location Bratislava, Slovakia

We're hiring a Senior Backend Engineer to build the reliable, secure, and scalable systems behind our products. You'll design and develop the API backend that powers PMcardio – our product used by thousands of doctors every day, ensuring it meets the high standards required for medical-grade software.
You'll work closely with Product, Frontend, and AI to ship new features, improve system reliability, and shape backend architecture that scales with our growth. This is a role for someone who wants real ownership: making architectural decisions, solving hard backend challenges, and building production systems where reliability, security, and correctness truly matter. We are changing cardiology healthcare globally. If you want to solve meaningful engineering challenges and help bring AI into everyday clinical practice, this role is for you.

Your role

  • Build backend services: Design and build reliable, secure, and scalable backend services and APIs
  • Own architecture: Own architectural decisions for core backend systems and help shape how our platform evolves
  • Design data models: Design data models and database schemas that remain robust as the product and team scale
  • Collaborate cross-functionally: Collaborate closely with Product, Frontend, and AI teams to deliver new features end to end
  • Build for scale: Build systems that handle scale, concurrency, asynchronous workloads, and high availability in production
  • Drive quality: Drive improvements in reliability, performance, and maintainability across the backend stack
  • Raise the bar: Write automated tests and help raise the bar for backend best practices and engineering standards

Your profile

  • Experienced: Proven experience designing and scaling backend systems used by large numbers of users
  • System design: Strong understanding of scalable system design, backend architecture, and database-backed applications
  • Ownership: Experience owning technical decisions and building systems that need to be reliable, secure, and maintainable over time
  • Distributed systems: Comfortable dealing with concurrency, asynchronous processing, and distributed system challenges
  • Python: Strong Python experience in production; experience with typed Python and frameworks such as FastAPI is a plus
  • Collaborator: Strong engineering judgment, clear communication, and a collaborative mindset when working across teams
Offer

What we offer.

We are creating an environment where you can do your best work.

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Global Impact

Your chance to have a real impact on how millions of cardiac patients are treated around the world every year.

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Ownership & Equity

From day one, you'll take on real responsibility. We want you to feel and act like a co-owner, so we give you equity.

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Healthcare

We offer comprehensive medical, dental and vision coverage.

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Competitive Compensation

We offer competitive, market-rate salaries, set fairly and transparently, so everyone understands the logic behind their pay.

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Physical & Mental Wellbeing

We provide access to consultations with a psychologist. We also offer contributions to your physical and mental wellbeing.

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Flexible Working

You know best when you're most productive, so we trust you to manage your own time. Just know this isn't for everyone; hours can be long and the pace is intense.

Culture

Culture & Values

This is who we are and how we succeed.

  • Build what matters
  • We started Powerful Medical to build products that save lives. We approach this mission with the highest dedication and never settle for good enough when better is possible.
  • Be entrepreneurial
  • You are the co-owner of this company. Have this mindset in everything you do. You will be given a lot of freedom and responsibility, no politics. Be curious, figure things out, and have the courage to try new things.
  • Do what it takes
  • Nothing truly great was ever created without hard work. We have a strong bias toward action to get things done. We execute with a sense of urgency, and we use AI to move faster and smarter.
  • Seek excellence
  • Our products enable doctors to make better decisions about their patients' lives. We set a high bar of quality in everything we do — and in ourselves. We grow by never stopping to learn, question, and evolve.
Team

Your future colleagues

Our people on the work, what it’s like, and why it matters.