Backend Developer (Node.js)

Responsibilities

As a Backend Developer, you will be a key architect of the engine that powers our global platform
You'll resolve complex challenges in a high-load, distributed system, building and scaling the infrastructure that processes millions in donations
You will work on a complex product ecosystem—from our modern checkout experience to donor portals and massive analytics pipelines—all powered by a cutting-edge tech stack
Database: MongoDB
Infrastructure: Kafka for event streaming, Bull (Redis) for background jobs, ClickHouse for analytics, and Elasticsearch for search
Design, build, and maintain clean, efficient, and scalable backend services in Node.js and TypeScript
Develop new product features from concept to deployment, collaborating closely with product managers and frontend engineers
Own key parts of our backend architecture, making critical decisions that enhance performance, reliability, and security
Write comprehensive unit tests and conduct thorough code reviews to maintain code quality
Proactively identify and implement system improvements, refactoring legacy code where necessary
Contribute to a culture of engineering excellence by mentoring others and sharing your expertise

Backend: Node.js (Koa, NestJS), TypeScript
Experience: 5+ years of backend development experience, preferably in a product-driven environment
Node.js Expertise: Strong, hands-on experience with Node.js and modern frameworks like Koa or NestJS
TypeScript Pro: Deep expertise in TypeScript, including its advanced typing and module systems
Database Skills: Solid experience with MongoDB or other NoSQL databases
Distributed Systems: Familiarity with event-driven architecture using tools like Kafka, RabbitMQ, or Bull/Redis
Data & Search: Hands-on experience with ClickHouse (or similar analytics DBs) and Elasticsearch
Architectural Mindset: A strong understanding of system design, clean architecture principles, and performance optimization
Ownership: The ability to work independently, take ownership of your work, and see projects through to completion
Communication: Comfortable working within a Russian-speaking team

💼 Location: Remote (CET hours preferred)
💰 Compensation: $4,000 - $5,200 + stock options
Clear product vision and access to real customer feedback from global nonprofit leaders
Flat structure: no politics, just great work with great people
Long-term focus: we offer equity options and value sustained, meaningful contribution
31 days off
100% paid telemedicine plan
Home Office Setup Assistance: the company offers assistance with purchasing furniture (office chair, office desk, monitor) and other items to create a comfortable workspace
English learning courses
Relevant professional education
Gym or swimming pool
Co-working
Remote working