Senior Software Engineer (.NET, C#, Protocols Team)

Are you passionate about designing and building technology that connects the physical and digital worlds? Do you thrive on leading complex projects and mentoring other engineers, while working with cutting-edge IoT devices? com is seeking a Senior Software Engineer to join our Protocols Team, which develops and maintains the communication backbone that powers millions of smart home devices worldwide.

In this role, you will drive the design and delivery of robust, scalable solutions that enable seamless device interoperability. You will collaborate across teams to define technical strategy, guide architecture decisions, and ensure high-quality implementation. Your work will directly influence the performance, security, and reliability of our platform.

If you enjoy solving challenging problems, improving processes, and mentoring future engineering talent, we would love to talk to you. com values working together and collaborating in person. We are building a new team in Krakow.

Our employees work fully from the office with possibility to work remotely occasionally.

What You Will Do

Lead the design, development, and maintenance of full-stack software across diverse platforms and technologies. Architect solutions that balance scalability, performance, and maintainability for device protocol communications. Research emerging technologies and champion adoption where they can bring significant value.

Requirements

gathering through deployment, monitoring, and optimization. Collaborate with product managers, QA, and other engineering teams to deliver impactful solutions. Make strategic technical decisions, setting direction for projects and influencing the broader team’s approach.

Mentor junior and mid-level engineers, providing code reviews, architectural coaching, and career guidance. Contribute innovative ideas and drive continuous improvement in both product and process. What You Bring Bachelor’s or Master’s degree in Computer Science, Computer Engineering, or a related field, or equivalent professional experience.

5+ years of professional software development experience, with proven success in delivering complex projects. Advanced object-oriented programming skills, preferably in C#. Strong experience with database design, SQL, and backend services.

js, Angular, or React a plus. Experience in the IoT and/or home automation field is a plus. Solid track record of implementing and improving unit testing and automated testing strategies.

Experience in distributed systems, real-time communications, or high-performance applications. Excellent communication skills and ability to lead cross-functional collaboration. Why You Will Love Working Here Collaborate with exceptional peers.

Work alongside talented engineers who value innovation and excellence. Shape technical direction. Influence architecture decisions that impact millions of connected devices globally.

See your impact. Watch your solutions interact with and power IoT hardware in real-world environments. Mentor and grow talent.

Help guide the next generation of engineers while building high-performing teams. Work with cutting-edge technology. js, and native iOS/Android apps.

Long-term employment based on a permanent employment contract (CoE).

Benefits

package: including medical care, life insurance, sports package, annual budget for professional development ($2,000). com is the leading cloud-based platform for smart security and the Internet of Things. 6 million home and business owners depend on our solutions every day to make their properties safer, smarter, and more efficient.

And every day, we’re innovating new technologies in rapidly evolving spaces including AI, video analytics, facial recognition, machine learning, energy analytics, and more.