C++ Developer with OpenShift/OpenStack Experience – telco sector

We are currently seeking a C++ Developer to join one of our telecommunications projects as part of a global R&D engineering team. You will be responsible for developing, improving, and validating software within a next-generation IMS platform, working closely with system architects and technical teams throughout the feature design process.

Your tasks

• Design, implement, and enhance high-performance C++ software for telecom systems

• Work closely with system architects and engineering teams to define features and contribute to technical design solutions

• Analyse, debug, and resolve complex production issues, ensuring smooth operation of deployed systems

• Ensure software quality, reliability, and performance through proactive monitoring and validation of solutions

• Provide ongoing technical support and participate in process improvements to optimize system performance and development workflows

Requirements

• At least 4 years of professional experience in software development using C and C++

• Solid background in Linux environments, including scripting and programming (e.g., Python, Bash)

• Hands-on experience with automation pipelines and build systems, including CI/CD practices

• Experience working with cloud or container platforms such as OpenShift or OpenStack

• Background knowledge of telecommunication systems is highly desirable, particularly within IMS (IP Multimedia Subsystem)

• Familiarity with telecom signalling protocols, especially SIP and Diameter, is considered a strong advantage

• Residing in Poland required

• Fluent Polsh and English required

We are looking for an experienced Senior ServiceNow Developer to enhance and expand our HR module capabilities across key areas such as Case Management, Onboarding, and Document Management. In this role, you will work in a multilingual environment, supporting projects that leverage modern ServiceNow features, including Now Assist. If you thrive in complex, international environments and speak both German and English fluently, this role could be a great fit.

Your tasks

• Design, develop, and optimize HR module functionalities in ServiceNow, focusing on Case Management, Onboarding, Document Management, and Now Assist

• Collaborate with German- and English-speaking stakeholders to gather requirements and deliver scalable solutions

• Ensure code quality, proper documentation, and adherence to ServiceNow best practices across all HR-related features

• Implement integrations and workflows to support end-to-end HR processes

Requirements

• At least 5 years of experience as a ServiceNow Developer, with strong hands-on expertise in the HR module (including Case Management, Onboarding, Document Management)

• Working knowledge of Now Assist or similar AI-driven ServiceNow capabilities

• Fluency in German and English, both spoken and written

• Solid understanding of software development standards, best practices, and workflow design within ServiceNow

• 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 

• 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 

If you are passionate about cutting-edge telecom technologies and want to make a real impact, we encourage you to apply now!