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Full Time

Full-Stack .NET Web Developer Job Opportunity/ 1 week ago

Avanquest
Attractive
Application ends: 2026-02-26

Quick Summary

Experienced Backend .NET Web Developer role in Kraków, Poland, focused on developing and maintaining scalable .NET-based backend services for complex e-commerce and licensing platforms. Requires 5 years of experience with .NET/.NET Core, strong knowledge of databases (PostgreSQL, MongoDB, Elasticsearch) and ORM, and experience with Queue Systems (Kafka or RabbitMQ), microservices, and Kubernetes. Candidates must be familiar with CQRS, Event Driven Architecture, MVC, and CLEAN principles. The role offers competitive compensation, a bonus program, and a 100% flexible work environment.

Avanquest, a software publishing subsidiary of Claranova (a French group of innovative technological solutions with revenues exceeding $500 million), creates reliable and intuitive software solutions. Our key product types include PDF software, photo editing software (Inpixio), and utility software for PC performance and security. Offered mainly as Software as a Service (SaaS), our products are sold in over 150 countries and translated into more than 15 languages worldwide.

Avanquest offers:

  • A multicultural collaborative group.
  • An ambitious company in rapid development.
  • A place where every talent can contribute know-how and have a real impact on large-scale projects.
  • An environment where productive initiatives are always recognized at their true value.

Visit our website: www.avanquestgroup.com

Job Details:

We design and operate complex e-commerce and licensing platforms for our B2B and B2C products, covering the full customer lifecycle from purchase and license management to after-sales and support. To strengthen our backend team, we seek an experienced developer eager to code, actively shape, and improve our systems.

Main Responsibilities:

Reporting to the Manager, Web Software Development, the .NET Web Developer will be key in developing and maintaining backend services for our e-commerce and licensing platforms. This role requires close collaboration with cross-functional teams to deliver reliable, scalable solutions and continuously improve systems across the full customer lifecycle. Your main responsibilities include:

  • Develop and maintain .NET-based backend services for e-commerce, licensing, and web platforms.
  • Analyze business requirements from presales, sales, support, and after-sales processes.
  • Build robust APIs and data-driven solutions with a strong focus on reliability and scalability.
  • Contribute to system architecture and enhance existing components and services.
  • Act as a technical contact for adjacent teams (frontend, product, support).
  • Ensure high code quality, performance, and maintainability.
  • Optional: Support DevOps processes (CI/CD, monitoring, deployments) and automations.

Required Qualifications:

  • 5 years of experience in backend development with .NET and .NET Core/.NET Framework.
  • Strong knowledge of databases (PostgreSQL, MongoDB, Elasticsearch, Redis), including ORM (Entity Framework optimization techniques).
  • Experience with Queue Systems like Kafka or RabbitMQ.
  • Familiarity with CQRS & Objects Mediation patterns, Design Patterns, Event Driven Architecture, MVC & CLEAN principles.
  • Experience with microservices and containerized infrastructure (Kubernetes).
  • Ability to understand complex systems and translate business needs into clean, efficient code.
  • Proactive mindset, structured work style, and strong collaboration skills focused on cross-team communication.
  • Familiarity with additional languages in our stack (Golang, PHP, Node.js, JVM/Scala/Java) is a plus.
  • Nice to have: experience with e-commerce platforms or licensing workflows.

Our Tech Stack:

Languages:

  • C#/.NET Framework.
  • Nice to have: Go, JVM (Scala/Java), PHP, TypeScript/JS.

Infrastructure:

  • Git, Kubernetes/Docker, CI/CD.

Databases:

  • PostgreSQL, MongoDB, Elasticsearch.

What We Offer:

  • A fair compensation for your value.
  • Competitive corporate benefits.
  • Access to life and health insurance from day one.
  • Bonus program for all, paid vacation leave, and more.
  • An open and supportive environment as well as a modern and exciting workplace.
  • Commitment to maximizing your potential and ensuring your professional development.
  • Interaction with local and international teams.
  • A 100% flexible environment and work/life balance.
  • A friendly atmosphere.
  • A friendly and collaborative work environment, where authenticity and well-being are a priority.

At Avanquest, we value and support diversity. We are committed to providing an environment that promotes inclusion and respect for all. We encourage women, people of all gender identities, aboriginal people, and people with disabilities to apply for our positions.

Only successful candidates will be contacted.

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Avanquest

Avanquest

  • Address
    Kraków, małopolskie
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