LT HORVÁTHSoftware Engineer with 10+ years of experience building with PHP, Python, and TypeScript. Worked on a wide range of projects, from legacy monoliths to microservices, in high-traffic environments where reliability and availability are essential. I enjoy working in teams, sharing knowledge, and making a positive impact.
Career
Jan 2026 - Sep 2026 - Senior Software Engineer at Recart
- Expanded the integration capabilities of the company’s SMS marketing and list growth platform while engineering its related microservices with TypeScript, Node.js, MongoDB, Redis, DynamoDB, and Datadog.
- Ensured fault tolerance and high availability through event-driven messaging with SQS and SNS.
- Launched a rapidly evolving MCP server to support merchants’ agentic workflows.
Jul 2024 - Jan 2026 - Staff Software Engineer at Byborg Enterprises
- Architected new features for a legacy streaming site and its services under heavy load (~10M daily users), with a performance awareness, leveraging Python, Flask, MySQL, Redis, Elasticsearch, Kafka, and Docker.
- Integrated an in-house recommendation engine through a cross-team effort while ensuring high availability.
- Contributed to the introduction of new technologies and created local environments for legacy projects with Docker.
Feb 2023 - Jul 2024 - Senior Software Developer at Billingo
- Delivered e-invoicing features built with PHP, Laravel, MySQL, Redis, Elasticsearch, and Docker as the main technologies.
- Integrated a non-blocking data synchronization pipeline with an external CRM system.
- As part of a high-impact change affecting both the codebase and deployment, upgraded multiple framework versions and mitigated the resulting 20% CPU performance hit.
- Monitored applications with Grafana, tracked errors with Sentry, automated deployments with GitHub Actions, and automated infrastructure management with Ansible.
Sep 2021 - Feb 2023 - Senior Software Developer at Webshippy
- Developed e-logistics platform and onsite software stack that included PHP, MySQL, Redis, and Memcached.
- Decoupled new features into a microservices architecture using Laravel, Kafka, and Docker.
Dec 2020 - Sep 2021 - Senior Software Developer at Mindtech Apps
- Built backend REST APIs with PHP and Laravel.
- Built backend APIs with GraphQL, TypeScript and NestJS.
- Assisted the frontend team with API integrations.
Sep 2013 - Dec 2020 - Software Developer at SR Limnatis Holdings Ltd
- Developed tube sites, administration, CMS, and webmaster sites, as well as associated services, in PHP and JavaScript.
- Refactored and rebuilt a legacy project from plain PHP to CodeIgniter and, years later, to Laravel, while supporting framework updates.
- Scaled sites to 40M+ views per day using MySQL and MongoDB, with Redis as a caching layer.
- Introduced Elasticsearch for searching and filtering on our tube sites.
Feb 2013 - Sep 2013 - Mobile Application Developer and Manual Tester at Appsters
- Composed cross-platform mobile applications (iOS, Android, Windows Phone).
- Performed manual QA testing based on predefined test cases.
Education
- 2010 - 2012 - Szent György Média és Informatikai Szakgimnázium - Web Developer Qualification by National Qualification Register