Full Stack .NET Developer (C#, Vue.js & MS SQL Server)

Matrix Eastern Europe; Polska; On-site; PLN 120,000 - 180,000; Full time

Job summary

Matrix Eastern Europe, the offshore division of Matrix IT, is looking for a Full Stack Web Developer to join one of our teams building advanced internal MES and manufacturing applications. You will design, develop, and maintain full-stack solutions using C#, ASP.NET Core, and SQL Server, with strong emphasis on end-to-end ownership and collaboration across disciplines.

The role requires 3–4+ years of hands-on experience, familiarity with AI coding assistants, and a proactive approach to

Qualifications

• 3–4+ years of hands-on development experience.
• Strong self-management, responsibility, and task ownership.
• High motivation, commitment, and the ability to learn quickly.
• Experience with AI coding assistants in daily development.
• Experience with ASP.NET web development, C#, .NET Core (NET 8+), and .NET Framework.
• Strong MS SQL Server skills, including complex stored procedures, views, functions, and query performance tuning.
• Experience with SQL Server JSON (FOR JSON, OPENJSON) and lightweight data access (Dapper / SqlClient).
• Experience with CSS, Bootstrap, Element UI, and PrimeVue.
• Experience with SAP integration (RFC / SAP .NET Connector) or the manufacturing domain.

Responsibilities

• Design, develop, and maintain full-stack web applications for internal organizational and manufacturing (MES) systems.
• Develop backend services, REST APIs, and business logic using C#, ASP.NET Core, .NET 8+, and .NET Framework.
• Design, maintain, and optimize MS SQL Server databases, including complex queries, stored procedures, views, and functions.
• Leverage AI coding assistants in daily development for code generation, debugging, testing, analysis, and documentation, ensuring the quality and reliability of generated code.
• Take end-to-end ownership of development tasks, from requirements analysis and technical design through implementation, testing, deployment, and ongoing maintenance.

Skills

Full stack development

C# / ASP.NET Core

AI coding assistants usage

MS SQL Server

REST APIs

SQL JSON / Dapper

Frontend CSS/Bootstrap/PrimeVue

Self-motivation / ownership

Manufacturing domain experience (MES)

Tools

Claude / Claude Code

GitHub Copilot

ChatGPT

Job description

Matrix Eastern Europe, the offshore division of Matrix IT, one of the leading global R&D services companies with more than 11,000 professionals, is looking for a Full Stack Web Developer to join one of our teams!

the person will be part of the development team and work on advanced internal organizational systems (MES / manufacturing). If you enjoy building practical business applications, solving complex technical problems, and owning work from design to delivery, this role may be a great fit.

Responsibilities

• Design, develop, and maintain full-stack web applications for internal organizational and manufacturing (MES) systems.
• Develop backend services, REST APIs, and business logic using C#, ASP.NET Core, .NET 8+, and .NET Framework.
• Design, maintain, and optimize MS SQL Server databases, including complex queries, stored procedures, views, and functions.
• Leverage AI coding assistants in daily development for code generation, debugging, testing, analysis, and documentation, ensuring the quality and reliability of generated code.
• Take end-to-end ownership of development tasks, from requirements analysis and technical design through implementation, testing, deployment, and ongoing maintenance.

Requirements

• 3–4+ years of hands-on development experience
• Strong self-management, responsibility, and task ownership — Required
• High motivation, commitment, and the ability to learn quickly — Required
• Hands-on experience with AI coding assistants (Claude / Claude Code, GitHub Copilot, ChatGPT, or similar) as part of daily development: writing clear prompts, reviewing and validating AI-generated code, and using AI to speed up analysis, coding, testing, and documentation — Required
• Hands-on experience with ASP.NET web development, C#, .NET Core (.NET 8+, Minimal APIs), and .NET Framework — Required
• Strong MS SQL Server skills, including complex stored procedures, views, functions, and query performance tuning — Required
• Experience with SQL Server JSON (FOR JSON, OPENJSON) and lightweight data access (Dapper / SqlClient, no Entity Framework) — Advantage
• Experience with CSS, Bootstrap, Element UI, and PrimeVue — Required
• Experience with SAP integration (RFC / SAP .NET Connector) or the manufacturing domain — Advantage