Fundraise Up

Senior Backend Engineer

Fundraise Up · Poland - Remote

Posted 29 days ago

or apply directly on Fundraise Up's site. We never take the application ourselves.

Is this posting real?

This role has been open
29 days
Fundraise Up's roles stay open a median of 37 days
Reposted
No
Salary listed
No
7% of Fundraise Up's roles list one
Ghost-job risk at Fundraise Up
high
48 stale, 12 reposted of 114 open
Hiring momentum
156 roles opened in the last 90 days
↑ up vs. the prior 90 days
Last confirmed on the employer's board
2026-09-17

Measured from postings appearing on and disappearing from Fundraise Up's own greenhouse board since 2026-08-03. Full hiring picture for Fundraise Up.

About this role

As a Senior Backend Engineer at Fundraise Up, you'll design, build, and maintain scalable backend services using Node.js and TypeScript. You'll work on a complex product ecosystem that includes a modern checkout experience and donor portals, while also addressing performance and reliability challenges in a high-load, distributed system. This role emphasizes collaboration with product managers and frontend engineers, as well as mentoring team members and improving system architecture.

Our read on this posting3.4out of 5
benefits
4/5
freshness
4/5
career value
4/5
role clarity
5/5
pay transparency
0/5

Scored from the posting itself — how clearly the role is described, how much it says about pay and benefits, and how recently it was listed. Not a judgement of Fundraise Up as an employer.

What you need

  • 7+ years of backend development experience, preferably in a product-driven environment
  • Strong, hands-on experience with Node.js and modern frameworks like Koa or NestJS
  • Deep expertise in TypeScript, including its advanced typing and module systems
  • Solid experience with MongoDB or other NoSQL databases
  • Familiarity with event-driven architecture using tools like Kafka, RabbitMQ, or Bull/Redis
  • Hands-on experience with ClickHouse (or similar analytics DBs) and Elasticsearch

Nice to have

  • Prior experience working in a remote-first, globally distributed team
  • Experience with performance monitoring and observability tools (e.g., Prometheus, Grafana, Datadog)
  • A genuine interest in the non-profit technology sector
  • A hypothesis-driven mindset and the ability to communicate complex technical concepts to non-technical stakeholders

What you get

  • 31 days off
  • 100% paid telemedicine plan
  • Home Office Setup Assistance
  • English learning courses
  • Relevant professional education
  • Gym or swimming pool

Worth weighing

  • Remote work is preferred in CET hours
  • The role requires comfort with a Russian-speaking team
  • No specific mention of a formal mentorship program, but mentoring is encouraged
  • AI is expected to be used meaningfully in day-to-day work

Summarised from Fundraise Up's posting. Read the full original.

Listed by Fundraise Up on their greenhouse job board, last confirmed open on 2026-09-17. PitchMeAI is not the employer.

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