Senior Back-end Software Engineer (.NET + Azure) job in Kraków / remotely

Senior Back-end Software Engineer (.NET + Azure)

Project - the aim you'll have

Our team works with a British insurance company on cybersecurity. We develop customer care applications which serve as the communication channel between the insurance company and its customers. The main app’s functional features are checking if the customer has secure enough infrastructure to have the agreement with that company. End user is notified about incidents and risks, which are connected to the company he/she is employed it. There is a guidance from a set of FAQs and a virtual assistant. The app has an additional tools released along with it to configure the colour, schemes, fonts and content.

Position - how you'll contribute

As a Senior .NET Developer, you will play a key role in designing, building, and delivering cloud-native applications that power scalable and reliable digital services. You’ll collaborate closely with architects, DevOps engineers, and cross-functional teams to develop solutions that leverage the best of Microsoft Azure technologies. In this role, you will:

  • Lead the development of robust backend services using Microsoft .NET and Azure cloud technologies.
  • Design and implement event-driven architectures utilizing Azure Service Bus and Event Hub. 
  • Build and maintain Azure Function Apps, App Services, and contribute to efficient CI/CD pipelines in Azure DevOps. 
  • Ensure code quality through automated testing, code reviews, and adherence to software engineering best practices. 
  • Optimize database performance and reliability through proficient use of SQL Server and related technologies. 
  • Diagnose and resolve complex technical issues while ensuring system stability and performance. 
  • Actively contribute to architectural decisions and propose scalable solutions for evolving business needs. 
  • Drive a culture of ownership, accountability, and continuous improvement within the development team.

You’ll be working in an environment that values clean code, automation, and innovation. This position offers the opportunity to shape solutions end-to-end — from concept to deployment — while collaborating in an agile, cloud-first setting.

Expectations - the experience you need
  • Minimum 6 years working as a .NET Developer
  • Strong working knowledge of Microsoft .NET for building cloud-based services.
  • Familiarity with Azure messaging/event-driven services such as Service Bus and Event Hub.
  • Experience working with Azure Function Apps, App Services, and Azure DevOps
  • Experience with CI/CD pipelines and DevOps practices.
  • Familiarity with unit testing and mocking frameworks.
  • Proficiency in SQL and database development (e.g., SQL Server).
  • Experience with automated testing, debugging, and code reviews.
  • Demonstrable experience of end-to-end design, build, and delivery of applications, ideally within a cloud-native environment
  • Writing clean, efficient, and maintainable code with a strong focus on quality, testing, and best practices.
  • Identify, troubleshoot, and resolve backend issues proactively and efficiently.
  • Ability to anticipate challenges, propose solutions, and take ownership of tasks.
  • Fluent communication in English
Additional skills - the edge you have
  • Experience in fin-tech
  • Certificates proving Azure knowledge
Our offer – professional development, personal growth
Hover on each benefit to learn more
Decide on the form and conditions of your employment
*Applicable in: Poland & Latam & MD/RO
Flexible employment and remote work
*Applicable in: Poland & Latam & MD/RO
Work with the latest technologies for industry leaders
*Applicable in: Poland & Latam & MD/RO
International projects with leading global clients
*Applicable in: Poland & Latam & MD/RO
Travel to clients’ and work in their environments
*Applicable in: Poland & MD/RO
International business trips
*Applicable in: Poland & MD/RO
Work comfortably in a relaxed and inspiring atmosphere that does not enforce a dress code
*Applicable in: Poland & Latam & MD/RO
Non-corporate atmosphere
*Applicable in: Poland & Latam & MD/RO
Develop your skills at work – language classes come to you
*Applicable in: Poland & MD/RO
Language classes
*Applicable in: Poland & MD/RO
Develop your competences and skills through skill centers and webinars
*Applicable in: Poland & MD/RO
Internal & external training
*Applicable in: Poland & MD/RO
Take care of the health of you and your loved ones
*Applicable in: Poland & MD/RO
Private healthcare and insurance
*Applicable in: Poland & MD/RO
Work out, swim and enjoy other fun activities
*Applicable in: Poland & MD/RO - monthly sport budget
Multisport card
*Applicable in: Poland & MD/RO - monthly sport budget
Take part in activities that support your physical and mental health
*Applicable in: Poland & Latam & MD/RO
Well-being initiatives
*Applicable in: Poland & Latam & MD/RO
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