Senior Fullstack Engineer - Remote, Scale Donor Platform

Fundraiseup; Turkey; On-site; TRY 2,031,000 - 2,726,000; Full time

Benefits offered by this job

Remote working

Home Office Setup Assistance

English learning courses

Gym or swimming pool

Co-working

31 days off

100% paid telemedicine plan

Job summary

Fundraise Up is seeking a Senior Fullstack Developer to design, build, and scale features central to the donation experience for millions of users. You will leverage Node.js, React, and TypeScript to develop complex components—from donation widgets to admin dashboards—with a focus on code quality and scalability.

The role requires 7+ years of experience, strong React/Node.js skills, and a bias toward ownership.

Qualifications

• 7+ years of professional fullstack development experience.
• Deep understanding of modern JavaScript (event loop, closures, promises, prototypes).
• Expert-level proficiency with React and its ecosystem (familiarity with Vue is a plus).
• Strong backend expertise with Node.js (Koa or NestJS highly preferred).
• Experience with Webpack configuration, performance optimization, and profiling.
• A keen eye for detail and a high sense of ownership and accountability for your work.

Responsibilities

• Design, build, and maintain resilient frontend and backend features using React and Node.js.
• Develop our core products, including donation checkouts, embeddable widgets, and donor/partner portals.
• Architect and develop system components that scale across millions of monthly transactions.
• Write clean, well-documented, and thoroughly testable code.
• Drive architecture and technical design discussions to find elegant solutions to complex problems.
• Mentor peers by conducting thoughtful code reviews and providing constructive feedback.
• Partner with product managers and designers to clarify requirements and shape the roadmap.
• Proactively identify and resolve bugs, performance bottlenecks, and optimization opportunities.
• At Fundraise Up, AI is a default tool, not an experimental one. Use AI in day-to-day work and grow fluency as tools evolve.

Skills

7+ years experience

JavaScript

React

Node.js

Code quality

Ownership

Mentoring

Tools

Koa

NestJS

Webpack

Vue.js

MongoDB

ClickHouse

Elasticsearch

Docker

Job description

Fundraise Up is seeking a Senior Fullstack Developer to design, build, and scale features central to the donation experience for millions of users. You will leverage Node.js, React, and TypeScript to develop complex components—from donation widgets to admin dashboards—with a focus on code quality and scalability.

The role requires 7+ years of experience, strong React/Node.js skills, and a bias toward ownership.