Artem – PHP, Symfony, Laravel

Invyzia is financial management product that takes a client’s financial data and generates a visual proposal of their portfolio including future projections and insights

• Implemented deployment process;
• Integrated with morningstar API;
• Re-developed website with new design;
• Improved calculation formulas;
• Integrated with Black Diamond API;

Large E-comm shops and vendor in EU and US in beauty industry. Customer can buy products and control it via mobile device.

• Created backend architecture;
• Migrated project from Symfony 3 to Symfony 5;
• Implemented headless, API-first backend to communicate with frontend and mobile team;
• Developed single-sign-on solution;
• Integrated new payment and shipping providers;

P2P Crypto marketplace where customers can buy crypto-currencies with different payment methods and instruments. No only for cash / credit cards, but also for gift card and vouchers. It was a killer feature of product

• Organized a transactional mechanism with payment processing on different microservices.
• Implemented some mixed solutions with the StateMachine pattern and 2-phase commit protocol (2PC).
• Kept transactions between 2 microservices.
• Worked with High-Load Project
• Debugged with monitoring tools (Sentry, ELK, Prometheus) potential performance issue

MyDriver is a business class taxi service in German.

• Integrated our system with a flight monitoring system to know when our customers should arrive at the airport to pick up the time

• Implemented "on-demand" taxi service

• Improved performance of "Back-office" website loading via refactoring SQL queries to PostgreSQL

Car2Go (Previously Drivenow and ShareNow) is one of the biggest car-sharing project in EU and US.

• Created microservice to validate customer driver license via OCR
• Processed information, and verification this data with the insurances company via API
• Implemented 2FA
• Improved security protection of service (DDos protection, brute-force protection, suspicious IP-addresses protection)
• Implemented asynchronous mechanism to migrate more than 1000 000 customers from one legal entity to another
• Fixed a lot of bugs in the legacy back-office system

Corcentric (prev. Determine) is ECLM / procure to pay company. It is SaaS product to process B2B solutions for big/mid-size companies

• Improved stability of project (fixed a lot of performance / security bugs)
• Implemented new StoreFront component for shop
• Implemented OCR component to read PDF invoices to save Shop Manager's time
• Mentored trainee / junior engineers