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Senior Backend Engineer

  • Full-time
  • Bratislava, Slovakia
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Senior Backend Engineer

📍 Bratislava, Slovakia | 🕐 Full-time

About Powerful Medical

We build life-saving tech powered by AI. Our certified product PMcardio helps to diagnose cardiovascular diseases—the #1 cause of death globally—by analyzing ECGs. We’re backed by leading European, US, and Israeli venture capital firms and work closely with top healthcare providers across the EU and the United States.

About the Role

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 🚀

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

Your profile 💡

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

Monthly salary: from 4,000 EUR (depending on seniority) + stock options

Join us

Apply now

Give your best where it matters the most. 

What we offer.

Along with the chance to collaborate with bright and skilled individuals on a mission to save lives, we also provide a variety of appealing benefits.

ESOP (Employee Stock
Ownership Plan)

ESOP (Employee Stock Ownership Plan)

We grant equity to every team member based on their seniority and time with the company. Your ESOP allocation depends on the current company valuation.

Office with view in
Bratislava Downtown

Office with a view in Bratislava Downtown

Our environmentally friendly office provides stunning views and comes with perks such as complimentary fruits, snacks, Friday lunches, monthly breakfasts, and a premium coffee machine.

Physical
& Mental Health

Physical & mental health

We prioritize your well-being, providing access to consultations with a psychologist or coach for both work and personal matters.  You also receive a monthly 30€ contribution towards a Multisport card or a book of your choice.

Referral
Bonus

Referral
bonus

Help us attract top-notch talent and be rewarded for your efforts. If the person you refer joins our team, you’re eligible for rewards, with options like electronics or a trip worth up to 1,000€.

Hardware
Bonus

Tech equipment allocation

As a full-time employee, you will receive a company notebook and monitor. Additionally, you can choose extra equipment to ensure you have everything you need for your workspace.

ESOP (Employee Stock Ownership Plan)

We grant equity to every team member based on their seniority and time with the company. Your ESOP allocation depends on the current company valuation. 

Our eco-friendly office offers a great view and includes perks like free fruits, snacks, Friday lunches, monthly breakfast, and a top-notch coffee machine. 

We prioritise your well-being. You can consult with a psychologist or coach for any work or personal matters. Plus, you get a 30€ contribution for a Multisport card or the option to order a book of your choice. 

Help us find top talent and earn rewards. If your referral is hired, you could receive hardware or even a trip worth up to 1,000€. 

As a full-time employee, you’ll receive a company notebook and monitor. You can also select additional equipment or devices when you join.

Who we are

At Powerful Medical, our values aren’t just words on a wall; they’re the driving force behind everything we do 🧨. We’re a team of game-changers, dreamers, and doers. Join us and save lives with us!

Fearless Innovation

Fearless Innovation

We dare to dream, disrupt, and pioneer transformative solutions that redefine industry standards.

Passion for Impact

Passion for Impact

We’re passionate about making a meaningful difference in the world, pushing boundaries of modern medicine, and leaving a lasting legacy.

Transformative Collaboration

Transformative Collaboration

We thrive on connecting brilliant minds, fostering an environment where great ideas flourish through collaboration.

Entrepreneurial Spirit

Entrepreneurial Spirit

We don’t just face challenges; we embrace them, pivot with change, and are always on the lookout for the next opportunity to grow and evolve.

Fearless Innovation

We dare to dream, disrupt, and pioneer transformative solutions that redefine industry standards.

We’re passionate about making a meaningful difference in the world, pushing boundaries of modern medicine, and leaving a lasting legacy. 

We thrive on connecting brilliant minds, fostering an environment where great ideas flourish through collaboration.

We don’t just face challenges; we embrace them, pivot with change, and are always on the lookout for the next opportunity to grow and evolve.

People of Powerful Medical

Daniela Sitarová
Product Operations Manager

“I have always wanted to do something meaningful both in my personal and professional life. However, it is not always that easy in the tech industry. Powerful Medical allows me to work on cutting-edge technology with real impact. Moreover, the team is full of dedicated individuals who are not only smart and good at what they do but also always helpful and caring. I am truly enjoying this challenge so far!”

Daniela Sitarová
Product Operations Manager
Adam Rafajdus from powerful medical
Adam Rafajdus
Head of AI

The last two years have been a fantastic ride. From building global AI solutions that save lives daily to navigating the unique certification processes of our medical device, the job never gets boring. I’m proud to be surrounded by unique minds who challenge me every day – to give my best where it matters the most.

Adam Rafajdus
Head of AI
Powerful Medical Alexandra Hurbanicova
Alexandra Hurbanicova
Executive Assistant

Powerful Medical’s faith in my potential gave me the confidence to aim higher and perform better. The opportunity to be involved in a diverse range of projects encouraged me to step out of my comfort zone and develop a wealth of new competences, making my experience here incredibly rewarding.

Alexandra Hurbanicova
Executive Assistant
Powerful Medical Michal Valent
Michal Valent
Content and SEO lead

I have worked on various global projects and Fortune 500 accounts, but only at Powerful Medical do I get to do what I love and save lives while doing it. The fulfillment is unparalleled. Also, the coffee is great!

Michal Valent
Content and SEO lead
Powerful Medical Vladimir Vircik
Vladimír Virčík
Head of Finance and IR

I joined Powerful Medical with high hopes for AI truly helping patients. Little did I imagine that within a year, we would launch an app that detects heart disease by spotting subtle signs on the ECG, that the human eye cannot recognize. The speed of our progress is incredible. Each day, we receive positive feedback from clinicians, saving lives thanks to our technology. I am incredibly proud of our team and grateful to be part of this revolution.

Vladimír Virčík
Head of Finance and IR

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Powerful Medical is redefining the landscape of medical diagnostics with its AI-driven solutions. The company’s certified PMcardio platform revolutionizes the way cardiovascular diseases are detected, offering rapid and accurate diagnostics that pave the way for timely and effective treatment.

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Powerful Medical, Inc. | PMcardio and the PMcardio logo are registered trademarks of Powerful Medical. Additionally, Queen of Hearts is claimed as a trademark of Powerful Medical.

 

PMcardio is CE-marked as class IIb medical device under EU MDR and only certified for marketing in the European Union and the United Kingdom. PMcardio technology has not yet been cleared by the US Food and Drug Administration (FDA) for marketing in the USA. Not all modules of the PMcardio platform may be available in your region.

Prior to use, reference the Instructions for Use, for more detailed information on Indications, Contraindications, Warnings, Precautions and Adverse Events.

PMcardio is CE-marked as class IIb medical device under EU MDR and only certified for marketing in the European Union and the United Kingdom. PMcardio technology has not yet been cleared by the US Food and Drug Administration (FDA) for marketing in the USA. Not all modules of the PMcardio platform may be available in your region. Prior to use, reference the Instructions for Use, for more detailed information on Indications, Contraindications, Warnings, Precautions and Adverse Events.

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