Senior .NET Engineer

About Us:

Our vision is to become the world’s most fascinating fintech company by driving our society’s transition to a world without cash. Barion offers a data-driven online payment solution for more than 20k merchants in Central Europe. Our mission is to give buyers and sellers the most relevant information and experiences to help them make the wisest decisions. We're poised to build a cashless society through the smartest and most affordable payment solution in existence.

Why this role matters:

As a Lead .NET Engineer, you’ll play a key role in shaping the future of our core customer systems — from registration and onboarding to authentication and KYC. You’ll be both a hands-on senior developer and a technical leader, guiding modernization, mentoring teammates, and ensuring we deliver high-quality, scalable, and secure solutions.

What we offer:

• Competitive salary: Attractive compensation packages for employees.
• Private health care: Comprehensive health coverage for your well-being.
• A warm and welcoming team that values humor, creativity, and the occasional meme.
• Low-process, high-authority teams, so you can focus on actual work instead of meetings.
• A scale-up culture, where you can still have a visible impact on the product.
• 3 days of home office per week to deep dive into development tasks.
• Modern office location: We are just moving into our brand new office at the end of Corvin sétány.

• Expertise in .NET stack and the web: You're the kind of developer who can plan and create web projects in modern .NET. Expertise in ASP.NET, C#, and MS SQL. Confident in caching, data distribution, and performance optimization.
• Distributed thinker: You have experience with working on distributed systems, and you are able to create microservices from scratch.
• Monolith-tolerant: You are not afraid of legacy code and have efficient ideas on how to redesign it into a modern architecture.
• Loves automation: whether it is CI/CD or AI, you strive to automate your workflow wherever possible.
• Client-side is a plus! If you know your way around the browser and are not afraid of JavaScript, we will appreciate it.
• Experience in one of the modern JavaScript Frontend frameworks (Angular, React, Vue.js)
• Self-driven attitude: You love to see features through from planning to completion and are always keen to learn more.
• Critical thinker: You are not afraid to challenge the status quo, and you are able to voice your ideas.
• Conversational English: The ability to understand and communicate in English is preferred.

Requirements

• ASP.NET
• .NET
• .NET Framework
• MSSQL
• C#
• MS SQL
• Microservices
• AI
• Legacy code
• Modern architecture
• Self-driven attitude
• React
• TypeScript