ABOUT THE ROLE We are seeking a skilled software engineer with deep expertise in modern C++ and a passion for building robust, high-quality systems. This role involves owning complex components and features, as well as contributing to key architectural decisions. You will join a team responsible for delivering secure, seamless, and transparent access to our platform. Proactiveness, initiative and strong decision-making are essential for this role. You will: Lead technical design and architecture for features and services Participate in all phases of the software development lifecycle Collaborate with Support to troubleshoot issues and deliver timely fixes Work with Operations to drive performance improvements Identify technical gaps and drive effective solutions Maintain high quality by promoting clear documentation, strong code quality, and architectural enhancements. Ensure system reliability, including error handling, observability, and scalability. Required qualifications: 5+ years of backend software development experience Strong C++ expertise with hands-on experience using modern C++ standards (C++11/14/17/20) Experience developing on Linux systems General SQL understanding Good understanding of TCP/IP, HTTP, RESTful APIs, and XML Strong initiative and a proactive mindset, with a willingness to share knowledge, and support a collaborative environment. Strong communication skills, with the ability to work effectively in a team About us Our platform provides customers with an immutable, historical archive of their data in systems such as Microsoft 365, Google Workspace, Salesforce, Entra ID, Dynamics 365, and Zendesk. We protect our customers against everything, ranging from ransomware to simple accidents. The majority of our back-end components are written in clean, modern C++ using mainly purpose-built components. Components responsible for business processes and data mining are built using Common Lisp. Everything runs on Linux. We pride ourselves on backing up billions of objects over foreign APIs using imperfect networks on systems with finite memory and making it all happen in a performant, reliable, and predictable way. As we collaborate across locations, English is our primary language. Please submit your CV in English to support the review process. We offer: 20 working days paid vacation Health Insurance Full coverage of the sick leaves Full or partial coverage of professional training sessions, meetups, etc Online and offline English courses Home internet refund Cosy office in Lviv city centre (Lychakivska, 33a) with beverages, fruit, and cookies Winter and summer parties, events, team-buildings We kindly ask you not to provide us with any sensitive categories of personal data when applying for a job with us. When applying for the vacancy, Keepit will process your personal data, and therefore we recommend that you also read our privacy policy, which describes our processing of personal data and your rights as a data subject.