Professional Experience
EY GDS Consulting Poland
Digital Lead - Capital Markets
Nov 2025 - Present
- Drove modernization initiatives from mainframe to cloud-native/open systems architecture within a high-impact $100M program, directly managing a core team while providing overarching technical direction and oversight for extended functional analysts, testing, and development teams.
- Partnered closely with stakeholders to translate complex Capital Markets requirements into scalable technical solutions.
- Led cross-stream coordination between functional and technical teams, ensuring precise alignment of business requirements with system design and delivery across reporting, accounting and securities domains.
- Designed and implemented automation tools to streamline development, migration, and delivery processes.
- Authored detailed technical specifications and architectural guidelines supporting the complex transformation program.
Technical Lead - Asset Management
Nov 2023 - Nov 2025
- Led a critical Sybase to MSSQL application migration within a $2B enterprise transformation program for a tier-1 global asset management firm, ensuring data integrity, performance, and zero disruption to core investment platforms.
- Directly managed a core development team while acting as the central technical authority and providing oversight for every application team in scope for the migration.
- Resolved high-complexity technical challenges related to query transformation, data access layers, and legacy dependencies.
- Established reusable migration patterns and best practices, improving efficiency across multiple teams and applications.
- Aligned engineering and business stakeholders across multiple departments to ensure smooth transition.
- Mitigated high-impact risks and managed complex dependencies, guaranteeing zero downtime and absolute stability for tier-1 trading and financial systems.
Vestiacom
Senior Full Stack Developer - Telecommunication
Jan 2019 - Nov 2023
- Developed and maintained microservices for analytics of customer-premises equipment and mobile platforms.
- Collaborated directly with stakeholders to gather and refine technical requirements.
- Delivered scalable full-stack solutions, contributing to system architecture and performance optimization.
Android Developer - Telecommunication
Jan 2016 - Jan 2019
- Developed remote management solutions for customer-premises equipment and central control system for home automation.
- Built a central control system for home automation, integrating various smart devices.
- Implemented a NAS-based media management system.
- Optimized build configurations, reducing compilation time of a large-scale project by 80%.
- Trained teams on new technologies and best practices.
Windows Phone Developer - Telecommunication
Jan 2014 - Jan 2016
- Created a custom local speed test application for mobile networks.
- Developed VoIP calling features tailored to proprietary telecom infrastructure.
- Acted as team lead for mobile feature development.
Sollers Consulting
Software Developer - Finance
Jan 2013 - Jan 2014
- Delivered software development solutions for finance sector clients.
Education
Master of Computer Science
University of Maria Curie-Sklodowska (UMCS)
2012 -
2014
• Lublin, Poland
Projects
Mentorship & Training Experience
- Conducted internal Kotlin introductions for engineering teams.
- Led Git onboarding and version control best practices workshops.
Interests
Hobbies
- Macro Photography - ravmaz.com
- Homelabbing & Self-Hosted Infrastructure