Senior Backend Engineer
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Job Description
Senior Backend Engineer scaling Fundraise Up’s global nonprofit fundraising platform. Building Node.js and TypeScript services for high-volume donations, portals, and analytics.
Responsibilities:
- 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 the 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
- Mentor others and share engineering expertise
- Actively use AI in day-to-day work and identify how AI can improve engineering workflows
- Work on the checkout experience, donor portals, and analytics pipelines in a high-load distributed system
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 see projects through to completion
- Comfortable working within a Russian-speaking team
- Already using AI meaningfully in day-to-day work
- Nice to have: experience in a remote-first, globally distributed team
- Nice to have: performance monitoring and observability tools such as Prometheus, Grafana, or Datadog
- Nice to have: interest in the nonprofit technology sector
Benefits:
- Equity options
- Private medical insurance for the employee and their family
- 22 paid vacation days per year
- Up to 14 paid public holidays per year
- 5 company-paid sick leave days
- English learning courses
- Relevant professional education
- Gym or swimming pool
- Home Office Setup Assistance: the company offers assistance with purchasing furniture (office chair, office desk, monitor) and other items to create a comfortable workspace
- Co-working
- €50 monthly allowance to cover internet and mobile phone expenses
- Remote working
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