Fundraise Up is a global fundraising platform that simplifies the donation process for nonprofits. As a Senior Fullstack Developer, you will contribute to building and scaling features central to the donation experience, utilizing your expertise in Node.js, React, and TypeScript.
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. We expect every team member to actively use AI in their day-to-day work, identify where AI can change the shape of problems in their function, and grow their fluency as the tools evolve. You should already be using AI meaningfully in your work and understand where it adds value and how it can improve the way you operate
Requirements:
- 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 (experience with Koa or NestJS is 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
- Experience with MongoDB, ClickHouse, or Elasticsearch
- Familiarity with Docker, CI/CD pipelines, or cloud infrastructure
- Contributions to open-source projects or a strong personal portfolio