2026_.NET Developer

Upgrade Your Career in .NET & Fintech

If you're looking for a fresh challenge in .NET development, if you want to work on impactful projects in the banking sector, all while enjoying flexibility and long-term career stability, please read on.

Koios is a specialized IT company delivering cutting-edge solutions to leading financial institutions. Right now, we need a .NET developer (mid level) to join our team and contribute to building high-quality software solutions.

What You’ll Be Doing

🔹 Writing & Optimizing Code

• Write clean, scalable code using the .NET framework
• Revise, update, refactor, and debug code
• Test and deploy the fruits of your labor

🔹 Collaboration & Code Quality

• Code-review colleagues || get code-reviewed
• Sometimes write unit tests for your clean, scalable code
• Utilize established development tools, guidelines, and conventions

🔹 Staying Ahead of the Curve

• Remain up to date with terminology, new technologies, concepts, and best practices
• Work with a range of technologies including:
  • .NET 8+, .NET 4.5+
  • Web Apps (Blazor or other JS frameworks, MVC & WebForms), REST API, Entity Framework, desktop development
  • MS SQL Server, Oracle, PostgreSQL
  • HTML, CSS, JS
  • (Azure or AWS is a plus)
• Use Git to make commits

Why Join Koios?

🔹 Job Stability & Growth – Our employees stay for years (some over a decade).
🔹 Exciting Global Projects – Work with 7+ major European banks and help shape fintech solutions.
🔹 Flexible Career Paths – If a project isn’t the right fit, we’ll help you transition to another.
🔹 Professional Development & Leadership – Learning budgets, skill shares, and team leadership opportunities.
🔹 Hybrid & Remote Work – Choose what works best for you.

Where You’ll Be Working

🔹 From our cozy, well-stocked offices, your own home, or anywhere in between.
🔹 Alongside 80+ colleagues eager to share their knowledge and help you grow.
🔹 With interesting people who appreciate work-life balance and will help you find yours.

Ready to Upgrade Your Career?

If you’re excited about the opportunity to work on fintech projects with a great team, apply now and let’s get you started in the next month or so.

Drop your info, and let’s talk!