Dyrektor techniczny / CTO

Led a department of over 120 engineers across 15 product and platform squads, including 7 Engineering Managers and teams in Front-End, Back-End (Java/Python), Mobile (iOS and Android), QA, Data Science, and AI/ML. Key Achievements: - Improved quarterly goal delivery from 75% to 90% by eliminating process bottlenecks. - Cut median lead time for changes by 35% and reduced cycle time by 28% through trunk-based development and automated CI gates. - Established SRE foundations (SLOs, error budgets, on-call), reducing MTTR by 45%. - Rolled out platform engineering "golden paths," cutting new service bootstrap time by 3x. - Lowered cloud spending by 18% by negotiating better rates with cloud providers. - Implemented a new Engineering Ladder and evidence-based Performance Review framework, establishing clear growth paths for Individual Contributors and Engineering Managers. - Introduced and operationalized DORA metrics across all teams to measure and boost performance. - Spearheaded the adoption of AI/ML for both engineering workflows and core product capabilities. - Initiated and led the migration from a monolithic toward a modern, microservices, event-driven architecture.

I led the engineering division and defined the company’s technical vision and strategy, reporting directly to the CEO and shareholders. I oversaw a division of more than 80 engineers, including 9 team leads, across Front-End, Back-End, Mobile, AI, QA, and DevOps. Key Achievements - Owned technology strategy and execution for a digital entertainment company with 80+ engineers and 300M+ active users. - Launched 20+ products, including AI/ML-powered platforms, high-load AdTech systems, and SaaS solutions, driving measurable business impact (revenue, efficiency, time-to-market). - Reduced time-to-market from 8 months to 4–8 weeks by rearchitecting the delivery pipeline and introducing CI/CD & trunk-based development. - Tripled engineering productivity by implementing DORA metrics and data-driven performance management. - Cut infrastructure costs by 25% through cloud cost optimization and contract renegotiations. - Launched the AI Division (2022), building LLM-powered products that increased revenue by 70% for key clients. - Delivered multiple large-scale platforms (SaaS, AdTech, AI avatars, chatbots) used globally by content creators.