Sergej K.

Time-to-Market Acceleration: Reduced product launch time by 21 % through the introduction of Scrum and optimized output workflows across cross-functional teams. System Modernization: Led modernization of a high-availability payment routing system, migrating from on-prem mainframe architecture to AWS cloud-native services, resulting in 31 % lower infrastructure costs and 12% faster incident resolution. Regulatory Delivery Excellence: Delivered compliance-critical features across both legacy and cloud environments, ensuring adherence to evolving EU regulations (PSD2, GDPR) and passing three consecutive internal audits with zero findings. Team Leadership: Managed and coached a cross-functional team of 4 engineers and analysts, driving productivity through agile rituals, GitLab workflows, and transparent Jira tracking. Executive Alignment: Drove strategic alignment between product, tech, and legal/compliance stakeholders, accelerating roadmap decisions and improving project throughput by 18%.

Tech stack: n8n, AI Agents, HTML5, Python, Bash, AngularJS, Docker, Kafka, DBs, M/Text, Jira, Confluence, Retool, Gitlab, AWS

Project Ownership: Oversaw delivery of multi-million-euro IT initiatives for cross-border and domestic payment systems, ensuring end-to-end regulatory compliance and uninterrupted transaction flows across SEPA networks. Legacy Modernization: Modernized critical legacy systems using M/Text to digitize document workflows, reducing manual processing by 75% and cutting operating costs by €180K/year. & Stakeholder Leadership: Managed a distributed delivery team of 4 across Germany and India, meeting 100% of project milestones on time and under budget. Budget Accountability: Delivered a €2.2M digital transformation program for a major German finance processor, coordinating 6+ vendor systems and migrating operations to a hybrid-cloud environment.

Tech stack: n8n, AI Agents, HTML5, Python, Bash, AngularJS, Docker, Kafka, DBs, M/Text, Jira, Confluence, Retool, Gitlab, AWS

Automation Delivery: Led end-to-end execution of an advanced automation project, hitting 100% of key milestones. Risk Management: Conducted feasibility and risk assessments, preventing delays and cost overruns. Client Impact: Drove a 27% boost in customer satisfaction through close collaboration and proactive communication.

Tech stack: PHP, Docker, DBs, Jira, Confluence, Gitlab, Swift, Selenium, Drupal