Remote Senior .NET Backend Engineer for Industrial Systems

Sii Poland; Białystok; On-site; PLN 180,000 - 270,000; Full time

Benefits offered by this job

Great Place to Work

Solid financial situation

Contracts with the biggest brands

Centre of internal trainings

Many experts you can learn from

Open and accessible management team

Profit sharing

Passion Sponsorship program

Regular integration events and trips

Comfortable and well-equipped offices

MySii app

Medical care

Job summary

Sii Poland is seeking a Senior .NET Developer to join its agile in-house development team. This remote role is based in Poland, delivering long-term C#/.NET backend solutions for industrial systems.

You will collaborate with a cross-functional team using Azure DevOps and Git, implement CI/CD practices, and focus on code quality, performance, and system integration with industrial protocols. Excellent English required.

Qualifications

• Minimum 5 years of experience in C#/.NET backend development.
• Familiarity with OPC UA, Modbus, and IO-Link.
• Strong expertise in Azure DevOps and Git.
• Proficient in relational databases and SQL.
• Experience working in agile methodologies.
• Excellent communication and teamwork skills.
• Advanced level of English.

Responsibilities

• Developing C#/.NET backend solutions for industrial systems.
• Supporting system integration, including industrial protocols.
• Maintaining and enhancing existing applications.
• Collaborating within an agile team using Azure DevOps and Git.
• Implementing CI/CD practices to optimize development workflows.
• Ensuring high code quality and performance standards.
• Participating in code reviews and team meetings to foster knowledge sharing.

Skills

C#/.NET backend development

English communication

Teamwork

Tools

Azure DevOps

Git

SQL

OPC UA

Modbus

IO-Link

Job description

Sii Poland is seeking a Senior .NET Developer to join its agile in-house development team. This remote role is based in Poland, delivering long-term C#/.NET backend solutions for industrial systems.

You will collaborate with a cross-functional team using Azure DevOps and Git, implement CI/CD practices, and focus on code quality, performance, and system integration with industrial protocols. Excellent English required.