Fintech product

ABOUT THE COMPANY AND THE PROJECT

We are a fintech company developing a platform for processing payments, payouts, and currency exchange.

The architectural core of the platform is already ready: a modular structure has been designed, conventions have been defined, and several basic modules have been implemented. However, the main part of the product is still ahead — we need to design and build new modules on the existing foundation: financial operations, partner programs, integrations with external providers, and others.

The architecture is based on the principles of DDD, CQRS, and event-driven interaction. There are clear patterns, reference modules, and documentation — you won’t have to invent approaches from scratch, but there will be an opportunity to influence architectural decisions at an early stage of the product.

WHAT YOU WILL BE DOING

Designing and implementing new modules according to established patterns, refining existing ones

Implementing domain logic: aggregates, Value Objects, state machines, domain events

Writing commands, queries, and their handlers (CQRS)

Implementing event handlers for cascading business processes between modules

Adding read models and View objects for queries

Working with cross-context integrations through ports and adapters

Developing REST API endpoints

Writing unit tests for domain logic and integration tests for handlers

Participating in code reviews

TECHNOLOGY STACK

Language PHP 8.x

Framework Symfony

Architecture DDD, CQRS, Event-Driven, Hexagonal (Ports & Adapters)

Data handling with Doctrine ORM + DBAL PostgreSQL database

Queues RabbitMQ Caching Redis

Security Symfony Security (Voters, Authenticators)

REQUIREMENTS

Mandatory

3+ years of commercial experience in PHP (Symfony preferred)

Understanding of DDD principles: aggregates, Value Objects, repositories, domain events

Experience with CQRS or willingness to learn quickly

Ability to work according to established architectural patterns and conventions

Experience with Doctrine ORM and/or DBAL

Experience with PostgreSQL

Skills in writing unit tests

Proficient in Git

Will be a plus

Experience in FinTech / payment systems

Practical experience with DDD in a production project

Experience with RBAC and API key authentication

Ability to influence architecture and product decisions at an early stage

Interesting domain area with non-trivial business logic

After completing the first task, there is an opportunity to join the development team.