Software Engineer (Backend, PHP)

Software Engineer (Backend, PHP) 

About us: 
Difmark is a P2P platform where users can buy or sell digital goods (game keys, gift cards, top-up cards, software), game accounts, currency (MMO), additional services, and other gaming products without additional fees and intermediaries that are usually involved in such transactions.

The purpose for the role: development of new functionality on the backend part of  Difmark products 

Probation period: 

• The probation period for the Backend Software Engineer (PHP) role is 3 months, allowing both the employee and the company to evaluate compatibility and performance.
• During the probation period, performance will be evaluated based on technical skills, the ability to deliver tasks on time, collaboration with the team, and adherence to company processes and guidelines.
• The employee will receive regular feedback, mentorship from senior team members, and opportunities to address any gaps to ensure successful integration into the team.

Responsibilities:

• Develop, test, document, and support backend functionality for Difmark products.
• Implement solutions based on mathematical models, algorithms, and economic problem statements.
• Integrate external systems (payment platforms, verification tools, reporting systems, etc.).
• Debug, fix bugs, and provide test coverage (unit, integration, acceptance tests).
• Collaborate with front-end developers and team members to deliver secure, performant solutions.
• Maintain and enhance existing software, ensuring proper documentation and support in production.

Requirements:

• 3-5+ years of commercial experience in software development in medium sized projects, marketplaces, web applications; 
• Deep understanding of PHP programming language;
• Knowledge of Yii framework;  
• Good knowledge of OOP (GoF, SOLID, GRASP);
• Working experience with Redis;
• Good skills in MySQL & PostgreSQL and DB queries optimizations;
• Working with REST API, OpenAPI;
• Previous experience in using ElasticSearch;
• Basic skills in JavaScript/Vue.js;