Technical leadership of a ground-up rebuild of the Romania Traffic Tax Control System (eTarifare V2), covering architecture, backend engineering management and delivery.

• Rebuilt and delivered eTarifare V2 from scratch, improving performance, maintainability and security.
• Designed scalable architecture for complex, high-stakes features and enforced Laravel best practices, design patterns and code quality across the team.
• Led a small backend engineering team through architectural proposals, code reviews and delivery milestones.
• Integrated third-party payment gateway flows and microservice architectures.

Independent technical consulting delivering web applications, e-commerce solutions, enterprise web scrapers and backend APIs, with end-to-end ownership from client communication to post-launch support.

• Delivered 9+ years of full-stack projects for international and domestic clients.
• Gathered requirements directly from clients and business analysts to plan roadmaps and release cycles.
• Built custom web systems, Shopify templates and plugins, EC-CUBE e-commerce extensions, workspace platforms and enterprise data crawlers (Book Ascom, Zebra Shop, Stylist Shop, POD Workspace, Twitter/Amazon crawlers).
• Designed multi-tenant e-commerce extensions and scalable crawling engines for Amazon and Twitter data.
• Configured cloud infrastructure, deployment scripts and database models, and provided post-release maintenance and documentation.

Full-stack engineering and core-module refactoring on the live production system of Olivia, an enterprise AI conversational recruiting platform (acquired by Workday).

• Refactored core, highly abstract system modules in a live production environment supporting a 30+ engineer organization.
• Built reusable foundation modules for cross-team development.
• Optimized live production performance and improved stability for high-volume automated candidate communication.
• Integrated external messaging channels using Twilio and MessageBird SMS/voice APIs.

Senior backend engineering on data-extraction pipelines and automated job synchronization for a US firm specializing in applicant tracking systems (ATS) and recruitment platforms.

• Maintained and extended Recruiting.com ATS integration systems.
• Designed Selenium and XPath crawling engines to ingest job posting data at scale.
• Architected scalable crawling database models for multi-site ATS data.
• Debugged daily synchronization failures and implemented automated monitoring, trigger fixes and pipeline fallback mechanisms.
• Collaborated with a 5-person engineering team focused on data reliability.

Software engineer, team leader, project manager and business analyst across concurrent web and mobile projects at an educational software and outsourcing center.

• Delivered 5 concurrent web and mobile platform projects under tight deadlines (QTRAX, DoTalk, Ubest Education, YearStar Social, TuiHat Karaoke).
• Translated client requirements into UML diagrams, technical specifications and user stories.
• Led backend development with Java Spring MVC and PHP Laravel, and coordinated iOS, Android and backend teams.
• Scheduled sprints and release milestones, managing cross-functional teams of 3–10 members.

Web developer building public-sector administrative portals and enterprise workflow modules for e-government clients.

• Implemented government administration system modules using Java and Liferay Portal.
• Researched and integrated eGovFrame and Orbeon e-forms standards.
• Digitized regional public service procedures, deployed for municipal portals.
• Worked within project groups of 7 to 50 team members.