Senior Fullstack Developer (.NET + Blazor / Angular)
Offer summary

(Summary generated by AI based on the full job description)

The project focuses on fullstack web applications using .NET and Blazor/Angular with technologies like ASP.NET MVC Core, Entity Framework, SQL, Mongo, Azure, and AWS. Key responsibilities include designing, developing, and maintaining applications based on .NET, writing clean code, debugging, implementing security, supporting the team, and managing DevOps processes. Required skills cover microservices, Kubernetes, Docker, AI tools, working in Agile, and English at B2+. The offer includes remote work flexibility and medical plus sports benefits.

you can start ASAP

Senior Fullstack Developer (.NET + Blazor / Angular)

Company: STX Next S.A.

from: 18 May 2026
to: 17 June 2026
15 120 - 25 200net (+ VAT)/ mth.B2B contract (full-time)
Offer parameters
level:senior
working mode:remote
Poznań, Stare Miasto
Poznań, Stare MiastoMostowa 38View on map

Requirements

Expected technologies

C#
.NET
.NET Framework
ASP. NET MVC Core
Blazor
React
Azure Functions
SQL
Entity Framework
Kubernetes
Docker

Optional technologies

GraphQL
GRPC
Azure Cloud
AWS
MongoDB
Redis
Duck DB

Our requirements

  • Minimum 5 years of professional experience as a .NET or Fullstack Developer, with a strong focus on C#, .NET, .NET Framework, and ASP. NET MVC Core.
  • Experience with web and cloud technologies, including Blazor, React, Azure Functions, MS SQL, and Entity Framework.
  • Solid background in modern architecture, specifically microservices (SOA), event-driven design, Kubernetes, and Docker.
  • Deep understanding of engineering best practices, including web development principles, SOLID, and Git version control.
  • Proficiency in using Agentic AI in daily workflows for code generation, reviews, documentation, testing, and refactoring.
  • Experience working in Agile methodologies, demonstrating initiative and the ability to deliver results without close supervision.
  • Strong analytical, problem-solving, and communication skills, combined with an internal drive for technical excellence.
  • High adaptability and a positive "can-do" attitude, with the ability to change direction based on lessons learned.
  • English proficiency at a B2 level or higher.

Optional

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

Your responsibilities

  • Designing, developing, and maintaining applications using .NET technologies.
  • Writing clean, maintainable, and efficient code.
  • Troubleshooting and debugging applications.
  • Implementing security and data protection.
  • Collaborating with team members for continuous improvement.
  • Staying 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 organization.
  • Conducting code reviews of other team members.
Company

About the project

We are looking for a skilled Senior Fullstack Developer (.NET + Blazor / Angular) 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.

What we offer

  • 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.

Benefits

  • sharing the costs of sports activities
  • private medical care
  • life insurance
  • remote work opportunities
  • flexible working time
  • integration events
  • computer available for private use
  • corporate library
  • no dress code
  • video games at work
  • coffee / tea
  • drinks
  • parking space for employees
  • leisure zone

STX Next S.A.

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?
Senior Fullstack Developer (.NET + Blazor / Angular)
15.1k–25.2k zł / mth. (B2B)
I apply to:
STX Next S.A.
Poznań, Stare Miasto
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