Senior Backend Engineer
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Job Description
Senior Backend Engineer scaling Fundraise Up’s nonprofit donation platform with Node.js and TypeScript. Building distributed backend services, donation infrastructure, portals, and analytics pipelines.
Responsibilities:
- Design, build, and maintain clean, efficient, and scalable backend services in Node.js and TypeScript
- Develop new product features from concept to deployment with product managers and frontend engineers
- Own key parts of the backend architecture and make decisions improving performance, reliability, and security
- Write comprehensive unit tests and conduct code reviews
- Identify and implement system improvements, including refactoring legacy code
- Mentor others and share engineering expertise
- Use AI actively in day-to-day work and identify opportunities where AI can improve processes
- Resolve complex challenges in a high-load, distributed system
- Build and scale infrastructure processing millions in donations
- Work across the checkout experience, donor portals, and analytics pipelines
Requirements:
- 7+ years of backend development experience, preferably in a product-driven environment
- Strong hands-on experience with Node.js and modern frameworks such as Koa or NestJS
- Deep expertise in TypeScript, including advanced typing and module systems
- Solid experience with MongoDB or other NoSQL databases
- Familiarity with event-driven architecture using Kafka, RabbitMQ, or Bull/Redis
- Hands-on experience with ClickHouse or similar analytics databases and Elasticsearch
- Strong understanding of system design, clean architecture principles, and performance optimization
- Ability to work independently, take ownership, and complete projects
- Comfortable working within a Russian-speaking team
- Meaningful existing use of AI in professional work
- Prior experience in a remote-first, globally distributed team preferred
- Experience with Prometheus, Grafana, or Datadog preferred
- Interest in the nonprofit technology sector preferred
- Ability to communicate complex technical concepts to non-technical stakeholders preferred
Benefits:
- Equity options
- 31 days off
- 100% paid telemedicine plan
- Home Office Setup Assistance, including assistance purchasing an office chair, office desk, monitor, and other workspace items
- English learning courses
- Relevant professional education
- Gym or swimming pool
- Co-working
- Remote working
- Collaborative product team
- Access to real customer feedback from global nonprofit leaders
- Flat structure
- Transparent company culture
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