Senior Fullstack Developer (.NET + Blazor / Angular)

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.

Salary

Up to 25 200 PLN net+VAT

Job description

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.

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.

Requirements

Must have:

• 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.

Nice to have:

• 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.

Benefits

Remote-First Flexibility

Stay where you feel most productive. Here’s a remote-first environment with the freedom to set your own schedule. 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.

Cafeteria System & Health Membership

We provide access to premium medical packages which include Medicover Sport. You can also choose a MultiSport card and group insurance options. All these packages are managed through Cafeteria System, giving you the autonomy to choose exactly what fits your lifestyle.

Collaboration Mindset

Facing a complex challenge? At STX Next, you collaborate with true enthusiasts and experts who prioritize professional support and direct, honest feedback.

Tech Events

Gain access to specialized knowledge through bootcamps, Strategic Skills Labs, and Tech Knowledge Hubs focused on AI, Data, and Cloud. Beyond our internal webinars and technical materials, we host branded meetups like DevDuck and PAIDA.

In-person Networking

We support autonomy by enabling project groups to set up their own internal meetings in a location they prefer, often in our Poznań or Gliwice offices, which are great for coordination and building professional relationships. We also take a break from our screens twice a year for our Summer and Winter events.

Professional Toolkit

Prior to your first day as a NEXTer, you will receive a top-tier equipment setup: laptops, monitor, and peripherals tailored to your needs and specific project role. Additionally, we can provide access to external accounting assistance to help you set up and manage your B2B activity in Poland.

And much more, find out HERE