Alexander A

Backend developer with 10+ years of commercial experience, specialising in high-load platforms, warehouse automation, and payment systems. Progressed to Senior Backend Developer at Travelassist / Journeys Travel Ltd (UK), where I owned the full engineering lifecycle — from architectural decisions to production stability and payment gateway integrations. Built a custom WMS/CRM system from scratch for Stardis (Germany), including automated putaway logic, warehouse mapping, and multi-channel integrations with Shopify, Amazon and Afterbuy.

Strong expertise in PHP (Yii2, Laravel), RabbitMQ, Redis, MySQL/PostgreSQL, Docker and Linux infrastructure.

Senior Backend Developer

Stardis · DE Feb 2024 – Apr 2026 · 2 yrs

Designed and developed a custom WMS/CRM system from scratch using PHP (Laravel), covering end-to-end warehouse and order management operations.

Designed and optimized data architecture with PostgreSQL.

Built a dynamic warehouse mapping system with real-time visibility into stock locations, supporting both inter-warehouse transfers and intra-warehouse stock movements.

Implemented automated putaway logic for incoming container processing — the system analyses arriving goods and automatically assigns optimal storage locations based on warehouse layout, availability, and product attributes.

Developed sales analytics and reporting dashboards, enabling data-driven decisions across operations and management.

Integrated third-party platforms via API — Shopify, Amazon and Afterbuy — ensuring seamless order synchronisation and inventory updates across all sales channels.

Implemented an AI-powered automated email responder to handle inbound customer inquiries, reducing manual support workload.

Senior Backend Developer

Travelassist S.r.l. & Journeys Travel Ltd · United Kingdom Aug 2019 – Dec 2024 · 5 yrs

Built and maintained a high-load travel insurance platform using PHP (Yii2).

Designed and optimized data architecture with MySQL and Redis, and implemented asynchronous processing pipelines using RabbitMQ.

Led code reviews, architectural decisions, and sprint planning, ensuring scalability, maintainability, and delivery quality across the engineering team.

Took full ownership of the release lifecycle — coordinated deployments, ensured production stability, and rapidly resolved incidents under pressure.

Directed payment gateway integrations and maintained strict PCI DSS compliance across all financial workflows.

Led modernization efforts by migrating a legacy Delphi system to PHP, followed by a full Yii1 to Yii2 framework migration.

Built and maintained internal REST APIs for inter-service communication, ensuring reliable data exchange and clear contract boundaries between platform services.

Built a B2B partner portal with separate API access, allowing travel agencies and brokers to issue policies programmatically on behalf of end customers.

Computer Networks and Systems – ZNTU