Senior .NET Engineer — Async, Multithreading, Azure

London Stock Exchange Group; Gdynia; On-site; PLN 120,000 - 150,000; Full time

Job summary

A global financial markets infrastructure provider in Gdynia is seeking a seasoned engineer to design and optimize high-performance .NET applications, focusing on multithreading and Azure services. You will support junior developers and shape technical decisions, with a strong emphasis on product-focused thinking and team collaboration. A solid background in SQL Server and Azure is essential for success in this role.

Qualifications

• 5+ years of professional engineering experience with a track record of delivering production systems.
• Strong expertise in .NET with deep experience in multithreading and async patterns.
• Solid SQL Server skills, including query optimization and stored procedures.

Responsibilities

• Design, build, and optimize high-performance .NET applications.
• Support and mentor junior developers, providing technical guidance.
• Work with SQL Server to create efficient, scalable database solutions.

Skills

.NET

multithreading

asynchronous programming

SQL Server

Azure

Angular

Tools

Terraform

CI/CD pipelines

Job description

A global financial markets infrastructure provider in Gdynia is seeking a seasoned engineer to design and optimize high-performance .NET applications, focusing on multithreading and Azure services. You will support junior developers and shape technical decisions, with a strong emphasis on product-focused thinking and team collaboration. A solid background in SQL Server and Azure is essential for success in this role.