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Senior C#/.NET Software Engineer

Free Work Uk — Poland · Posted ~2 hours ago

Senior Contract

Skills

C# .NET Core ASP.NET Web API Object-Oriented Programming SOLID principles Clean Code Unit Testing TDD Git Visual Studio Agile Debugging Open XML SDK Docker Snowflake SQL Python HTML CSS JavaScript

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Summary ✨ AI‑Generated

A senior software engineering contract role for an experienced C#/.NET developer. You will build and debug applications in an Agile environment, applying object-oriented design, SOLID principles, clean coding practices, automated testing, and modern development workflows. The role values independence, organization, communication, and close collaboration, with opportunities to work across projects of varying durations. Additional exposure to DevOps, containers, cloud data platforms, Python, or frontend technologies would be beneficial.

Highlights

Senior-level software engineering role with substantial ownership, independent work, strong teamwork, and collaboration across technical teams. The role offers exposure to varied projects and an Agile development environment.

Description

C# .net Software Engineer Our Client is looking to recruit a Software Engineer with solid 5 plus years of developing and working C# .net in an Agile environment. Essential Skills And Characteristics Senior-level knowledge of C# and .NET Core (5+years) Experienced with ASP.NET (Web API) Knowledge of OOP, SOLID principles, clean code Knowledge of using unit tests and familiarity TDD approach Knowledge of Git Experience in coding and debugging in Visual Studio Ability to work in an Agile environment Strong communication skills Self-driven; Being able to work independently Self-organized Self-efficient Strong teamworking skills Good-to-have Skills And Characteristics Open XML SDK for office Dev Ops skills Experience with docker Snowflake SQL Python Basic frontend dev (HTML, CSS, JS). Other Skills Work in a highly collaborative environment with cross-functional teams on projects ranging from a few months to a few quarters in length Clearly and concisely communicate highly technical challenges and solutions to stakeholders and non-technical team members Maintain high standard of quality as you creatively and strategically problem solve throughout the product delivery process Be able to effectively communicate your work with both technical and non-technical peers Build solid back-end architectures that integrate easily with other systems and technologies Understand design patterns and write reusable, modular code Have a superior attention to detail and a strong ability to Q/A one’s own work required, including cross-browser and cross-platform displays and performance Experience in testing and debugging applications Performance tuning, improvement, balancing, usability, automation Polish-speaking is a big advantage The Client would ideally prefer the candidate to be based in Poland and in particular in Krakow. The daily rate/salary is negotiable. Please send your CV to us in Word format along with your rate/salary and availability.