Golang Developer for IoT

Golang Developer for IoT / Industrial Data PlatformMiejsce pracy: WarszawaTechnologies we useExpected

• C
• C++
• Python
• Go

About the project

The Embedded Competency Center is an organizational unit of Sii, that brings together almost 500 specialists. We are currently looking for a Golang Developer. You will design, develop, and maintain the core backend infrastructure that powers the entire platform, working closely with cross-functional teams to deliver robust, scalable solutions.

Your responsibilities

• Design, enhance, and support connectivity solutions that integrate various communication protocols such as MQTT, OPC, REST, Kafka, and more
• Develop and operate systems for reliable data acquisition, transformation, analysis, and processing across heterogeneous sources
• Build and maintain core platform services, including OPC UA Server features, data calculation pipelines, and historical/trending data modules
• Implement extensible components enabling user-defined scripts, SQL execution, workflow automation, and customizable rule chains
• Develop notification and messaging capabilities, including email, SMS, Slack, Google Chat, and other communication channels, ensuring consistent and timely delivery
• Contribute to security features such as TOTP and other authentication and protection mechanisms to safeguard the platform and user data
• Participate in architectural discussions, feature scoping, and technical design, taking ownership of complex functionalities from concept to implementation
• Collaborate closely with frontend, QA, and product teams while providing support, troubleshooting, and continuous improvements for deployed services

Our requirements

• At least 4 years of backend development experience, including work on large-scale, multi-service backend systems
• Proficient in Go as the primary language, with additional skills in C/C++, Python, SQL, and Linux/Windows
• Skilled in containerised development using Docker
• Solid understanding of distributed architectures and practical work with microservices
• Practical experience with event-driven systems, messaging tools, and asynchronous communication
• Understanding of industrial communication standards such as OPC UA, MQTT, and similar protocols
• Expertise in database schema design, optimisation, and efficient data handling
• Solid skills in building and maintaining APIs using REST and gRPC
• English at an advanced level
• Residing in Poland required

What we offer

• Great Place to Work since 2015 - it’s thanks to feedback from our workers that we get this special title and constantly implement new ideas
• Employment stability - revenue of PLN 2.1BN, no debts, since 2006 on the market
• We share the profit with Workers - over PLN 76M has already been allocated for this aim since 2022
• Attractive benefits package - private healthcare, benefits cafeteria platform, car discounts and more
• Comfortable workplace – class A offices or remote work
• Dozens of fascinating projects for prestigious brands from all over the world – you can change them thanks to Job Changer application
• PLN 1 000 000 per year for your ideas - with this amount, we support the passions and voluntary actions of our workers
• Investment in your growth – meetups, webinars, training platform and technology blog – you choose
• Fantastic atmosphere created by all Sii Power People

Recruitment stages

• Send your CV
• Talk to us about your expectations
• Learn more about our projects and choose the best
• Start your adventure with Sii

Sii Sp. z o.o.

Sii is the leading technology consulting, digital transformation, engineering, and business services vendor in Poland. We already employ more than 7 300 professionals and implement projects in a variety of industries for clients from many countries around the world. The Great Place to Work title, won 10 times in a row, proves that at Sii, we create a friendly work environment.

Sii ensures that all employment-related decisions are made solely on the basis of qualifications and competencies. We are committed to equal treatment of all individuals, regardless of any protected characteristics, and promoting a diverse and inclusive work environment.

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