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Backend Developer (Node.js)

1 hour, 32 minutes ago
Poland
Full-time
Senior
Backend Engineer
Software Development
Bull ClickHouse Datadog Elasticsearch Grafana Kafka Koa MongoDB NestJS Node.js Prometheus RabbitMQ React Redis REST API TypeScript Vue.js
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Fundraise Up

Fundraise Up

Fundraise Up specializes in enhancing online donation processes through AI-driven conversion optimization and integrated payment solutions, enabling organizations to maximize their fundraising potential and improve donor engagement.

Capital Markets
51-250
Founded 2017
View All Jobs 118

Description

  • Design, build, and maintain scalable backend services in Node.js and TypeScript.
  • Develop new product features from concept through deployment in collaboration with product managers and frontend engineers.
  • Own major parts of the backend architecture and make decisions that improve performance, reliability, and security.
  • Write unit tests and perform code reviews to uphold code quality.
  • Identify system improvements and refactor legacy code when needed.
  • Contribute to engineering excellence by mentoring teammates and sharing technical knowledge.
  • Work on complex product areas including checkout, donor portals, partner tools, and analytics pipelines.

Requirements

  • 5+ 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 tools such as 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.
  • Prior experience in a remote-first, globally distributed team is preferred.
  • Experience with performance monitoring and observability tools such as Prometheus, Grafana, or Datadog is preferred.
  • Interest in the nonprofit technology sector is preferred.
  • Ability to communicate complex technical concepts to non-technical stakeholders is preferred.

Benefits

  • €5,100 - €6,300 gross monthly compensation plus stock options.
  • 31 days off.
  • 100% paid telemedicine plan.
  • Home office setup assistance, including furniture and equipment support.
  • English learning courses.
  • Relevant professional education.
  • Gym or swimming pool access.
  • Remote working and co-working support.

Interested in this position?

Apply directly on the company website

Apply Now

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