// hello, world
Myron Saveliev
Senior PHP Engineer
Specialising in high-load FinTech and SaaS systems serving millions of users across Europe. Experienced in architecting scalable payment systems, microservices, and event-driven architectures using PHP, Symfony, and AWS.
01 / about
About Me
I'm a Senior PHP Engineer with 5+ years of experience building high-performance, production-grade systems across FinTech, SaaS, and EdTech.
02 / skills
Technical Skills
Core Languages
Frameworks
Databases & Messaging
Architecture & APIs
DevOps & Cloud
Tools
03 / experience
Work Experience
- Architected end-to-end Stripe integration for an EdTech platform with 100K+ active subscribers, including a webhook system with idempotency guarantees for transaction reliability.
- Orchestrated zero-downtime migration from Adyen → Stripe for 30K+ web subscribers, owning cutover strategy, data mapping, and uninterrupted service continuity.
- Reengineered transfer routing architecture for a payment system serving 200K+ users, cutting failed transfers by 25% and processing time by 15%.
- Engineered and maintained critical SEPA, SEPA Instant, and TARGET2 integrations processing thousands of daily transactions at 99.9% uptime.
- Resolved 20+ critical bugs in legacy financial modules, preserving core banking reliability through systematic refactoring.
- Architected and led B2B customer portal for GS1 Denmark from scratch, supporting daily workflows for 1,000+ business users.
- Enhanced textile industry ERP by delivering 5+ core modules (inventory, production scheduling, quality control) supporting 300+ active users.
- Architected WMS API for a Danish medical institution with real-time sync and compliance tracking.
- Delivered 10+ feature updates on Magento 2 platforms — payment gateways, shipping integrations, and custom checkout flows.
- Engineered backend for an international IoT retailer using Laravel + WooCommerce, scaling to 20,000+ global users with custom catalogue and logistics modules.
- Developed API integrations for an Irish EdTech SaaS platform, enhancing auth, content delivery, and reporting for 1,000+ daily users.
- Built a custom Laravel CMS with RBAC and 8+ language support for a call centre — secured a full-time offer from a pool of 100+ candidates.
- Developed and maintained high-performance web applications with Laravel 8+ and Symfony 5+, integrating Google, Facebook, and eBay APIs.
04 / education
Education
Master's in Software Engineering
American University Kyiv, Ukraine
Graduated 2025
Bachelor's in Electrical Engineering
National Technical University of Ukraine "Kyiv Polytechnic Institute"
Graduated 2019
05 / contact
Get in Touch
Open to senior engineering roles, consulting, and interesting conversations. Drop me a message — I typically respond within 24 hours.