Senior .NET Developer with Industrial Communication Protocols (f/m/x)

Sii Poland; Rzeszów; On-site; PLN 190,000 - 260,000; Full time

Benefits offered by this job

Great Place to Work

Profit sharing

Internal trainings

Medical care

Team events

Job summary

Sii Poland is seeking a Senior .NET Developer to join our agile in-house team. You will deliver long-term C#/.NET backend solutions for industrial systems, focusing on collaboration, CI/CD practices, and integration with communication protocols.

This is a remote position based in Poland, where you will work closely with your team to create impactful solutions. Join a fast-moving, collaborative environment with opportunities to work on cutting-edge industrial integrations and robust applications,

Qualifications

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

Responsibilities

• Develop C#/.NET backend solutions for industrial systems.
• Support system integration including industrial protocols.
• Maintain and enhance existing applications.
• Collaborate in an agile team using Azure DevOps and Git.
• Implement CI/CD to optimize development workflows.
• Ensure high code quality and performance.
• Participate in code reviews and team meetings.

Skills

C#/.NET backend

Agile development

Teamwork & communication

Tools

Azure DevOps

Git

SQL

Job description

We are looking for a skilled Senior .NET Developer to join our agile in-house development team. You will be responsible for delivering long-term C#/.NET backend solutions for industrial systems, focusing on collaboration, CI/CD practices, and integration with communication protocols. This is a remote position based in Poland, where you will work closely with your team to create impactful solutions. If you are passionate about developing robust applications and enhancing system integration, this opportunity may be the right fit for you.

Your tasks

• 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

Requirements

• Minimum 5 years of experience in C#/.NET backend development
• Familiarity with industrial protocols such as 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

Job no. JOB-4K7RH
Sii ensures that all hiring decisions are made solely on the basis of qualifications and competence. We are committed to equal and fair treatment of all, regardless of legally protected characteristics. At Sii, we promote a diverse and inclusive work environment, in full compliance with applicable anti-discrimination laws.

Benefits For You

• 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