Senior Software Engineer

Senior Software Engineer VOY is a fast growing Healthtech scale-up, aiming to be the healthcare provider that millions of people trust as their partner to a long and healthy life. Our platform allows users to quickly and safely diagnose possible conditions, get treatment and support them afterwards to live a higher quality life. To do this we are building an all in one healthcare platform which brings together world leading medical expertise and technical excellence. We are looking for an experienced Backend Engineer to join our growing global team and contribute to our mission to improve our patients' health and their lives. Who you are You’re a software engineer with at least 5 years of professional experience You have a genuine enthusiasm for software engineering and take no greater pleasure than finding the right solution to the problem at hand and making practical tradeoffs You are excited about contributing to a product that can drive positive change to the lives of millions of people around the world You have strong ownership mindset - “you build it, you run it” You’re eager to continuously learn, grow and step out of your comfort zone The idea of working in a successful, high growth startup in a fast paced role excites you What you will do Develop scalable & reliable systems Develop core functionality for our own customer-facing and internal products, systems and data platforms, and e-commerce capabilities using modern frameworks Develop extensible platforms and architectures that make it possible to quickly and efficiently launch new products and lines of business Develop and maintain integrations with third-party systems Develop the APIs powering the web & mobile platforms for our product portfolio Drive impact in a team environment You’ll work with other software engineers, designers, QAs, product managers, business stakeholders and domain experts You’ll drive impact and own your work end-to-end - from scoping & planning, architectural design decisions, implementation and testing, to production deployment and operations What we need from you At least 5 years of professional experience as a software engineer or equivalent Experience integrating and scaling PSPs such as Adyen, Stripe, Checkout.com Familiarity with scalable cloud architectures, design patterns and best practices Practical experience with CI/CD and IaC (Infrastructure-as-code) Comfortable using AI coding assistants (e.g., Cursor, Claude Code) as part of your daily development workflow Readiness to quickly learn PHP and Node (our main BE tech stack for the moment) Experience with databases & data management practices - relational databases & search engines Experience with TDD and testable code - unit / integration / performance testing Great verbal and written communication skills and the ability to explain complex ideas in a simple way to non-engineering teammates Ability to zoom in and out - be comfortable with getting into the relevant low-level details while also making the optimal tradeoffs for achieving the “big picture” goals. Other skills you might have Familiarity with observability framework, chargebacks, payment methods, recurring payments, 3DS, PCI-DSS compliance and subscriptions Experience applying LLMs to automate manual business processes or building AI-powered internal tools A degree in CS or equivalent is a plus Practical experience with building scalable & highly reliable cloud systems that support product used by millions of users around the world 24/7 Experience working in cross functional teams Department Engineering Locations Sofia Remote status Hybrid About Voy Healthcare is broken. We’re fixing it — and we need your help. Back in 2019, we launched MANUAL to tackle men's health (starting with hair loss and sexual health). A few years later, we launched Voy with a focus on weight loss. But our ambition has always been bigger. Healthcare too often treats conditions in isolation, not people as a whole, and we're on a mission to prove there's a better way. In 2025, we evolved from MANUAL into Voy, a brand built for the long game: supporting people through every stage of life, not just a single diagnosis. Today, we support over 1 million members across the UK, Germany and Brazil, delivering personalised care across weight loss, menopause, hair loss and TRT (with more categories on the way). Ready to join us and change how healthcare feels for millions of people?