Tudor – React, Java, Spring Boot

An enterprise B2B platform that streamlines quote-to-order workflows in the electronics components industry by connecting buyers and suppliers in a single system, enabling efficient sourcing, vendor management, and order processing with support for complex pricing models that significantly accelerate quoting.

• Redesigned and migrated the front-end from legacy architecture to React with TypeScript, establishing the foundation for the modern platform;
• Built a reusable component library with enforced design system consistency using MUI Joy UI, enabling rapid feature development across modules;
• Developed complex data grids with AG-Grid Enterprise: server-side pagination, row grouping, inline editing, and custom cell renderers handling thousands of parts and quotes;
• Implemented role-based access control and multi-tenant user management, supporting isolated environments for buyers, suppliers, and administrators;
• Built a real-time notification and alert system for quote updates, order status changes, and pricing alerts;
• Implemented full internationalization (i18n) across the entire application;
• Established front-end code quality standards, linting rules, and code review processes adopted by the team;
• Pioneered AI-assisted development by integrating Claude Code into the full development lifecycle: automated code reviews, linting, commit workflows, PR creation, and technical documentation;
• Built custom AI skills and workflows that connected Claude Code with ClickUp for task tracking and GitHub for version control, establishing a streamlined development pipeline adopted by the team.

A large-scale online betting platform serving millions of users and handling high traffic spikes during major events, where I contributed to the Wallet domain by extracting it from a legacy system into a modern serverless microservices architecture supporting deposits, withdrawals, bonuses, transaction history, and bet settlement at 25,000+ requests per second.

• Joined the project from day one and contributed across all aspects of the Wallet domain, deposits, withdrawals, bonus funds, transaction history, and bet settlement, serving close to 10 million active users;
• Led the extraction of the Wallet system from the legacy OpenBet monolith into a distributed serverless microservices architecture on AWS (ECS, Lambda, API Gateway, Aurora RDS, ALB);
• Designed and performance-tested the system to sustain 25,000+ requests per second during peak events such as the Melbourne Cup, Australia's largest horse racing event;
• Implemented event-driven communication between microservices using Kafka for asynchronous transaction processing and cross-service data synchronization;
• Built the full CI/CD pipeline with GitHub Actions, automated builds, infrastructure deployment, and blue-green deployments for zero-downtime releases across all microservices;
• Mentored junior developers on the 10-person team, conducted code reviews, and drove technical decisions as the most senior developer alongside the Tech Lead.

An asset management and cybersecurity audit platform that provides real-time visibility into audit progress, enabling clients to track assets, vulnerabilities, and remediation steps while allowing internal analysts to manage findings, update statuses, and communicate directly within a unified system.

• Served as the sole Front-End developer, designed and built the entire React/TypeScript architecture from scratch
• Implemented real-time chat functionality enabling direct communication between security analysts and clients during active audits
• Built a comprehensive reporting and statistics module allowing clients to export aggregated vulnerability data per asset for compliance documentation
• Developed role-based access control (RBAC) for admins, testers, and clients, granular permissions per CRUD operation to safeguard sensitive security findings
• Integrated RTK Query for efficient server state management with real-time cache invalidation across the dashboard

A dual-purpose platform for a major energy provider that enables customers to manage accounts, track consumption, and handle billing, while providing internal teams with tools to manage commercial offers, campaigns, and products, streamlining previously manual operations.

• Led a 4-member team through the full development lifecycle, from requirements gathering to production deployment;
• Redesigned the platform from a legacy interface to a modern, responsive UI, improving usability for both customers and internal employees;
• Built a comprehensive administration module that enabled employees to manage product campaigns, offers, and customer entities directly, eliminating the need for developer intervention on routine business changes;
• Developed a dynamic offer management system allowing the commercial team to configure promotional campaigns, pricing rules, and targeted offers autonomously;
• Integrated an e-Invoice service, automating invoice generation and regulatory compliance;
• Established front-end coding standards and introduced code review practices for the team.

A certified medical device platform for managing outpatient antiinfective therapy, combining a patient mobile app for medication tracking and communication with web applications for healthcare providers to create treatment plans, monitor progress, and coordinate care in real time.

• Built a distributed medical platform comprising two web applications (React) for physicians and healthcare centers, and a cross-platform mobile app (React Native) for patients;
• Developed an automated pharmacy ordering system that streamlined medication prescriptions directly from the treatment plan;
• Implemented a white-labeling system with dynamic theme generation, enabling the mobile app to be rebranded for different healthcare providers without code changes;
• Created a custom React Native library for secure file sharing between patients and medical staff, compliant with German medical data regulations;
• Designed and maintained the full CI/CD pipeline: Jenkins for orchestration, Docker for containerization, Fastlane for automated iOS and Android builds and App Store deployments;
• Managed database schema evolution across environments using Flyway migrations.