Backend Developer (.NET)

Zagreb, Croatia (Hybrid)


Who are we?


Join Leapwise - where clean code meets professional growth. We’re a B2B software development company specializing in software infrastructure and maintaining our own product portfolio, while serving modern enterprises in Telco, Banking, Cybersecurity, Gaming and IoT. We believe in building cost-effective, open source solutions with no third-party license dependencies. Our culture values quality over quantity and invests heavily in our people.

Who are we looking for?

We’re seeking a skilled Backend Developer (.NET) to contribute to technical development across our product portfolio and client projects. You’ll work on a single, dedicated project (no context switching!), whether it’s enhancing our proprietary products or building enterprise-level software infrastructure solutions.

What makes this role unique?

  • Work on both our internal product portfolio and cutting-edge software infrastructure projects
  • Contribute to products used by industry leaders
  • Deep focus on one project at a time - become a true domain expert
  • Build solutions from inception to production deployment
  • Clear growth path to Senior Developer role

Key responsibilities include:

  • Design and implement scalable backend systems and features
  • Collaborate with senior developers on architectural decisions
  • Contribute to our product development and improvement
  • Participate in code reviews and pair programming sessions
  • Write clean, maintainable C# code following team standards
  • Apply best practices in TDD, CI/CD, and clean architecture
  • Work closely with team members to deliver business value
  • Learn from and support team colleagues


Qualifications & experience:

  • 3-5 years .NET development experience
  • Solid knowledge of C# 10+ and .NET 6/7/8
  • Experience with ASP.NET Core, Web API, and Entity Framework Core
  • Understanding of microservices, REST APIs, and distributed systems
  • Experience with system design principles
  • Proficiency in SQL Server, PostgreSQL, MongoDB, Redis
  • Hands-on experience with Docker, Kubernetes, CI/CD pipelines
  • Strong collaboration and communication skills
  • Excellent English communication
  • Bachelor’s degree in CS/IT or related field
  • Experience with testing practices using xUnit, MSTest and/or NUnit testing frameworks


Nice to have:

  • Experience building B2B software products
  • Azure cloud services experience
  • Infrastructure automation experience
  • Domain experience in Telco/Banking/Cyber Security/Gaming
  • Microsoft certifications (Azure, .NET)
  • Experience with SignalR, or gRPC
  • Open source contributions
  • Hands-on experience with Docker, Kubernetes, CI/CD pipelines


What We Offer



Learning & Growth

  • Training by industry experts
  • Conference attendance
  • All certifications covered (Azure, .NET, Scrum Master...)
  • 10% dedicated learning time
  • Clear path to Senior Developer/Team Lead

Compensation & Perks

  • Competitive salary
  • Christmas, Easter & referral incentives
  • Additional Health Insurance + yearly checkups
  • MacBook
  • Balanced meals

Work-Life Balance

  • 25+ vacation days
  • Flexible hours (core: 10:00-15:00)
  • Hybrid model (3 office/2 remote days)
  • Fully remote in summer months
  • No overtime culture

Family Support

  • Newborn & kindergarten support
  • Parental leave top-up

Projects You’ll Work On:

  • Enterprise software infrastructure solutions
  • Our proprietary B2B product portfolio
  • Open source initiatives
  • Greenfield projects in Telco, Banking, Automation, Gaming, and Cybersecurity

Requirements:

  • Croatian citizenship required
  • Full-time position in Zagreb


Ready to build products and infrastructure that power enterprises? 

Hiring Process — Quick 2-week process: 


Initial chat → Technical assignment (1hr max) + Technical interview → Team fit → Offer. :e-mail:Apply: careers@leapwise.co or directly usingthe  link. Include: CV + GitHub/GitLab + proudest technical achievement.

If you want to get to know us better and learn about the working environment and benefits we offer, feel free to apply or contact us with any questions by sending an email to careers@leapwise.co

Thank you for your interest!

Backend Developer (.NET)

Job description

Backend Developer (.NET)

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