Senior FS Engineer

📍 Open to candidates in Ukraine and Poland

🧑‍💻 Fully Remote

Role & Responsibilities: 

• Position: Senior Full-Stack Engineer (Backend-Focused)

• Backend to Frontend Ratio: 80% backend, 20% frontend (most work done by backend) 

• Key Responsibilities: 

◦ Integration for payment solutions (Stripe, Salesforce) 

◦ High-scale system architecture, handling high traffic and large data volumes 

◦ Third-party integrations and billing system experience Technical Requirements: 

• Primary Technologies: 

◦ Backend: Node.js, NestJS, TypeScript 

◦ Frontend: React + TypeScript 

◦ Database: PostgreSQL, MongoDB 

◦ Cloud & Infrastructure: AWS, scaling solutions 

◦ Messaging Queues: SQS, RabbitMQ, Kafka 

◦ APIs: GraphQL 

• Experience Level: 

Minimum 8 years 

• Work Stability: 

At least 3-4 years in one company 

• Language Skills: 

English at B2 level (must be very good) 

Hiring Process: 

1. Intro Call (30 min) 

2. Technical Interviews (1h each) 

a. Candidate presents high-level scaling and past experience (no code review) + online coding test 

b. Whiteboard session covering architecture questions