Backend Engineer focused on payment systems, transactional backend, integrations, queues and webhooks.

I work mainly with PHP/Laravel and build backend systems where reliability matters: payment flows, order lifecycle, wallet integrations, background jobs, retries, timeouts, state transitions and API-based operations.

• PHP 8+
• Laravel
• REST APIs
• Jobs / Queues
• Events / Listeners
• Redis
• MySQL / PostgreSQL
• Docker / Docker Compose / Laravel Sail
• Linux CLI
• Nginx + PHP-FPM
• Git / GitFlow
• Python for bots and service logic

• Payment APIs
• Transactional backend systems
• API integrations
• Webhooks
• Queue-based processing
• State machines
• Retry logic
• Idempotency
• Settlement flows
• Internal operations systems
• High-reliability backend workflows

Settlane is a portfolio MVP of a payment and settlement infrastructure system.

It demonstrates backend architecture for transaction-heavy products: merchant APIs, hosted invoices, merchant/admin portals, invoice lifecycle, signed webhooks with retries, wallet allocation, balances, settlement flow and queue-based processing.

Stack:

• Laravel 12
• Vue 3
• PostgreSQL
• Redis
• Docker Sail
• Queue Jobs
• Webhooks
• UTXO / EVM / ERC-20 technical paths
• Local EVM demo with Anvil + MetaMask

Live demo: https://settlane.tech
GitHub: https://github.com/AndrewGalak6578

Settlane is not positioned as a production-ready financial system. It is a portfolio MVP focused on backend architecture, payment lifecycle, integration reliability and operational flows.

I’m interested in backend roles related to:

• fintech
• banking
• payment infrastructure
• crypto exchanges
• iGaming
• internal operations systems
• integration-heavy backend products

LinkedIn: https://www.linkedin.com/in/andrew-galaktionov-14b42a238/ Telegram: @andrewgalak6578