Praca w Sii Poland – Strona 2

We are looking for an experienced Systems Administrator to support and develop financial process platforms within a highly regulated business environment. The role focuses on ensuring reliable system performance, supporting end users, and contributing to continuous improvement initiatives. Close collaboration with internal technology teams is required, along with confident daily communication in English. ****Your tasks**** * Managing and developing the configuration of a financial reconciliation and control system * Supporting business users in day-to-day system usage and resolving technical issues * Reviewing financial workflows and identifying opportunities for process automation * Creating system-based reports, dashboards, and analytical outputs for stakeholders * Ensuring data consistency between financial systems and enterprise platforms * Participating in system enhancements, upgrades, and functional testing initiatives **Requirements** * At least 3 years of experience in a system administration or application support role * Hands-on experience with financial or accounting-related platforms, Blackline is preferred * Strong understanding of financial processes and system-based controls * Experience working with integrated enterprise systems * Ability to analyze issues and propose effective technical solutions * Fluent in spoken and written English for daily cooperation with international teams * Residing in Poland required Job no. 260611-O7NMY 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

Join our team at Sii to work on an exciting project in the telco area. As a C++ Developer, you'll have the opportunity to develop pioneering advancements in 5G technology, IoT solutions, and next-generation network infrastructure. You will be contributing to projects that shape the future of global communication, working alongside top professionals in a dynamic and innovative environment. Be a part of something big and take your career to the next level with us! ****Your tasks**** * Work as a C++ developer for high-performance and high-reliability mobile network systems and applications * Collaborate with cross-functional teams to design, implement, and test new features and functionalities * Troubleshoot and debug complex system issues, leveraging your knowledge of telecommunications protocols and standards * Participate in code reviews and maintain coding standards, ensuring high-quality and maintainable code * Create and/or manage CMake build configurations * Work agile to provide high-value contributions as a member of a scrum team **Requirements** * Experience in software development in the telecommunication industry (mobile networks preferred) * Prior experience working with network protocols and telecommunications standards * Minimum 3 years of experience in C++ development * Strong experience with Linux operating systems, including development and debugging * Familiarity with version control systems, such as Git, and collaborative development workflows * Ability to work effectively in a team environment and communicate complex technical concepts clearly * Good command of English (communicative for all work purposes) * Fluent Polish required * Residing in Poland required Job no. 260611-NX2VA 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

For a project in the banking sector, we are looking for a person for the position of IT Architect / Architect responsible for the design and development of the architecture of card and payment systems. The person in this position will co-create modern solutions to ensure high availability, security and reliability of key transaction systems. ****Your tasks**** * Designing the architecture of card systems in the areas of Issuing, Acquiring and Clearing & Settlement * Creating integration architecture between banking, card systems and payment organizations * Defining architectural standards and non-functional requirements * Supporting design and development teams in making architectural decisions * Designing development and modernization strategies for payment platforms * Identifying and assessing technology risks and analyzing the impact of business changes on systems architecture * Creating and maintaining architectural documentation **Requirements** * Minimum 5 years of experience in designing banking or payment systems architecture * Very good knowledge of card systems and payment processes * Knowledge of Visa, Mastercard, ISO 8583 and modern API standards * Experience in designing integration architecture based on REST, SOAP, MQ and Event - Driven Architecture * Knowledge of architectural patterns such as Microservices, SOA and CQRS * Knowledge of payment security, HSM, EMV and tokenization * Ability to model architecture and collaborate with business and technical stakeholders * Open to commuting to the Warsaw office 1-2 days per month * Residence in Poland required and fluency in Polish language Job no. 260611-HLQUB 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

For a project in the financial sector, we are looking for a person for the position of Data Modeling Architect / Architect. The person in this position will be responsible for the development and implementation of Data Governance solutions, supporting effective data management and building an organization based on the conscious use of information. ****Your tasks**** * Design and develop the Data Governance model in accordance with the data governance strategy * Defining and developing policies, standards and processes related to data governance * Co-developing tools and processes to support Data Governance * Supporting stakeholders in the implementation of data governance roles and responsibilities * Conduct education and communication activities to support the development of a data culture * Collaborate with business and technology teams on Data & IT initiatives **Requirements** * Minimum 5 years of experience in Data Governance or Data Management area * Practical knowledge of Data Governance, Data Quality and Data Catalog tools * Ability to combine business needs with data and IT solutions * Previous work in a regulated environment, preferably in the financial sector * Experience working with stakeholders at a managerial level * Highly developed communication skills, self-reliance and responsibility * Open to commuting to the Warsaw office 1-2 days per month * Residence in Poland required and fluency in Polish language **Nice to have** * Knowledge of DAMA-DMBOK or DCAM frameworks Job no. 260611-FWJ4N 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

The project is in the energy industry for a multinational organization that develops cutting-edge cloud solutions to support digital transformation. The goal is to design scalable and secure AWS-based architectures to enable low-code/no-code application development by business users. The role combines aspects of enterprise architecture, integration and governance with a focus on compliance and cost efficiency. ****Your tasks**** * Designing cloud solutions on AWS with a focus on scalability, security and resiliency of systems * Developing and adapting architecture to new business and technology requirements * Implementing governance, security and compliance for low-code/no-code applications * Supporting platform implementations and adoption in the organization * Conducting architectural reviews and defining technology standards * Collaborate with business, IT and security teams to execute technology strategy **Requirements** * At least 5 years of experience in the area of IT architecture or cloud solutions * Practical knowledge of AWS and cloud-native solution design * Experience in the area of system integration, APIs and event-driven architectures * Knowledge of cloud security and compliance issues * Ability to work with low-code/no-code platforms and create governance models * Very good knowledge of English - level min. B2 * Residence in Poland required and fluency in Polish language Job no. 260610-PMY5I 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

Join Sii and play a key role in delivering secure, enterprise-class identity and access management platforms to international clients. As a Backend Developer (Node.js and Python), you will design and develop cloud-native microservices, modernize legacy IAM components, and build new authentication and authorization solutions. You will collaborate with cross-functional teams and support strategic security initiatives across the organization. ****Your tasks**** * Develop and maintain backend microservices using Node.js and Python * Design and implement IAM solutions based on OAuth2, OIDC, and JWT * Build cloud-native serverless applications on AWS * Create and execute automated integration and end-to-end tests * Collaborate with architects, SREs, and external partners **Requirements** * Minimum 5 years of experience with Node.js and Python * Knowledge of microservices and distributed systems * Experience with AWS services such as Lambda and API Gateway * Understanding of authentication and authorization standards * Ability to work collaboratively and maintain high code quality * Very Good English knowledge, both spoken and written Job no. 260520-J2BVZ 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