Barnabas S.

Built a global B2C platform with 600K+ monthly visitors.

Programming/Testing/DevOps

• Designed system architecture and data model
• Programmed the site (full-stack), backend (django, ORM, DRF + dynamically generated optimized SQL) and frontend (Vue 3 + Quasar framework).
• Microservice architecture (some APIs use DRF, the analytics API runs on ExpressJS with the db migration and admin functions accessible via Django).
• Implemented mobile app version of the webapp -- soon to be launched (implemented custom Swift and Java plugins for Capacitor).
• Developed custom yaml-configurable pronunciation algorhythm, driven by a self-written C++ library integrated into python.
• Implemented automated E2E tests using Selenium with custom extensions for robust execution, ensuring a stable and production-ready platform.
• Implemented load balancing, carried out load testing, set up docker-composed config, bash deployment scripts and health checks.

AI

• Developed decision trees
• Integrated with neural network components

BA/Project management

• Optimized UX design, conducting data analysis and user testing, increasing user engagement
• Organized development plans into Epics, and UserStories, with ACs
• Implemented email campaigns
• Coordinated with 48 native speaker contributor for i18n
• Led part-time programmers and designers

• Acted as a Product Owner for TenMaid.v3, an internal tool supporting 2,000+ global users, translating complex business needs into structured epics and user stories.
• Created UML and BPMN diagrams to visualize workflows and enhance cross-functional understanding.
• Defined and documented API contracts (RESTful, gRPC) to ensure seamless backend communication.
• Collaborated with developers, designers, and QA teams to align business goals with technical solutions.
• Established implementable Acceptance Criteria (ACs) and led Sprint review demo sessions for stakeholder alignment.
• Acted as Product Owner at the development of a VIP client booking platform, integrating banking and financial services (Mastercard, Visa, HSBC), communicating requirements with 3rd parties.
• Standardized Jira workflows and wrote Confluence documentation, improving transparency and efficiency for the Business Analysis (BA) team.