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STX Next

Senior .Net Developer

STX Next
Poland · Full-time · Not Applicable

Hi there!

We are STX Next, a global IT consulting company specializing in customer-focused software services. Join a group of 500 professionals dedicated to helping customers build outstanding products. Leveraging the latest advancements in the field, and a passion for innovation, we're shaping the future of technology one project at a time.

Are you the NEXT one?

Type of contract A B2B contract for your flexibility and competitive compensation package Location A remote work model encouraging work-life balance.

Compensation

Up to 25 200 PLN net+VAT

Job Description

We are looking for a skilled .NET developer with experience in ASP.MVC Core, EntityFramework, SQL, Mongo, and Azure/AWS. The ideal candidate will have a strong understanding of web development principles and be able to design, develop, and maintain complex web applications.

Responsibilities

  • Design, develop, and maintain applications using .NET technologies.
  • Write clean, maintainable, and efficient code.
  • Troubleshoot and debug applications.
  • Implement security and data protection.
  • Collaborate with team members for continuous improvement.
  • Stay up-to-date with new technology trends.
  • Designing, implementing and maintaining automated builds and deployment.
  • Spreading knowledge about new and relevant technologies among the development team.
  • Coding features (data access, business logic and UI), fixing bugs and writing unit tests.
  • Testing and documenting (if required to help the team achieve goals).
  • Helping with production issues.
  • Helping to develop/maintain the DevOps culture in the organisation.
  • Conduct code reviews of other team members.

Must Have

  • Minimum 5 years of professional experience as a .NET Developer/Fullstack Developer.
  • Experience with Azure Functions.
  • Experience Blazor and/or React.
  • Experience with .NET and .NET Framework.
  • Good understanding of Solid principles.
  • Experience with microservice/SOA and event-driven architecture.
  • Good knowledge of C#, ASP.MVC Core.
  • Experience with EntityFramework, MS SQL.
  • Experience with Kubernetes and Docker.
  • Understanding of web development principles.
  • Experience with Agile development methodologies.
  • Experience with Agentic AI in daily workflow for code generation, code review, documentation, test generation, and refactoring.
  • Strong problem-solving and analytical skills.
  • Experience with Git and version control.
  • Strong communication and teamwork skills.
  • Ability to easily change direction based on lessons learned or changed circumstances (adaptability).
  • Open mind and positive can-do attitude.
  • Initiative and ability to work without close supervision.
  • Internal drive for technical excellence.
  • English - at least B2.

Nice To Have

  • Ability to create containerized applications.
  • Good understanding of serverless architecture and Azure Cloud/AWS.
  • Experience with CQRS pattern using MediatR.
  • Experience with GraphQL, GRPC.
  • Knowledge of NoSQL databases like MongoDB, Redis, Duck DB.
  • Ability to choose and configure the correct MCP for the project needs.
  • Experience with integrating AI tools into team workflows.
  • Experience with defining and configuring AI-augmented workflows using structured formats (XML, YAML).

Benefits

Remote-First Flexibility

Work from where you feel most productive. We offer a remote-first environment with the freedom to set your own schedule in coordination with your team. Whether you need a midday break or a specific routine, we trust you to manage your time and deliver results while maintaining your personal well-being.

Reimbursed private medical care (Medicover) and Multisport

We care about the health and well-being of our colleagues. Choose a sports card and dedicated medical care for yourself and your relatives.

Leader’s support

Work with true enthusiasts and professionals who will support you along the way. You can count on leaders and experts who are willing to share their knowledge so that you too can join their ranks someday.

Technology focus

Python and JavaScript are not our only strengths, we are also very good at React Native, IoT, Machine Learning, .Net, DevOps and Blockchain.

Growth review

Junior, Regular or Senior? Every year we have a chance to discuss acquired skills and prepare a development plan for upcoming months.

Events

Attend exciting internal webinars, celebrate special days with us, and join us at conferences and meetups as a listener or speaker!

Workation

Team trips where you have a chance as a team not only to work together, but also integrate f2f.

Key Skills

Ranked by relevance

ai devops react sql machine learning react native javascript kubernetes serverless ai tools graphql docker nosql redis grpc git xml ui c
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Posted
Apr 23, 2026
Type
Full-time
Level
Not Applicable
Location
Poznań
Company
STX Next

Industries

IT Services IT Consulting

Categories

Engineering Information Technology

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