Edvinas – Symfony, PHP, AWS

High-traffic content platform serving nearly 1 million unique monthly visitors. The application delivers real-time media and interactive features to a high-volume user base, requiring continuous uptime, sub-second latency, and optimized infrastructure costs.

• End-to-End Technical Ownership: Served as the Lead Developer, owning the entire software lifecycle from architecture design and full-stack development to DevOps, CI/CD pipelines, and server maintenance.
• High-Concurrency Performance: Architected multi-layer caching, database query indexing, and CDN strategies to ensure sub-second page load speeds during high-traffic peak spikes (~1M unique monthly visitors).
• Cloud & Server Cost Optimization: Optimized database queries and server resource allocation, drastically cutting infrastructure hosting costs to the bare minimum while preserving 99.9%+ availability.
• Zero-Incident Security Record: Hardened server infrastructure, implemented strict input validation, and regularly audited third-party dependencies, maintaining a flawless 0-security-incident record over ten years in production.
• DevOps & System Reliability: Configured automated deployment pipelines, real-time error logging/monitoring, and automated backup routines to ensure frictionless updates and high fault tolerance.

High-scale event management and ticketing platform built for global event venues and sports teams. Key features include real-time seat reservation, high-concurrency ticket queueing during peak drops, payment gateway integrations, and instant e-ticket delivery.

• Architected and deployed production Node.js and Python serverless microservices on AWS Lambda to process high-concurrency ticket streams and third-party integrations.
• Implemented async messaging pipelines utilizing AWS SQS, EventBridge, and SNS to decouple backend services and handle extreme traffic spikes during live ticket releases without service degradation.
• Built scalable federated GraphQL and RESTful API endpoints powering client-facing web and mobile PWA applications, reducing payload sizes and query execution times.
• Optimized Lambda memory execution and cold-start latency, cutting serverless operational costs while maintaining 99.9%+ platform availability.

High-scale event management and ticketing platform built for global event venues and sports teams. Key features include real-time seat reservation, high-concurrency ticket queueing during peak drops, payment gateway integrations, and instant e-ticket delivery.

• Engineered event-driven backend services using Node.js, Python, and AWS Lambda to power real-time data synchronization between venue IoT systems and consumer mobile apps.
• Integrated third-party payment gateways, access control systems, and marketing automation platforms into core Symfony/Node.js microservices.
• Optimized complex SQL and NoSQL database queries to support real-time reporting dashboards for venue operators during high-capacity events.