Senior Fullstack Developer (Node.js, React)

TL;DR

Senior Fullstack Developer (Node.js/React): Building and scaling a global fundraising platform for nonprofits with an accent on high-throughput donation widgets and data-driven dashboards. Focus on architecting system components for millions of transactions, optimizing performance, and integrating AI into the development workflow.

Location: Remote (CET hours preferred)

Salary: $3,800–$5,100 gross per month

Company

A global fundraising platform that enables nonprofits like UNICEF and the Alzheimer’s Association to collect donations through a seamless, accessibility-first experience.

What you will do

• Design and maintain resilient frontend and backend features using React and Node.js.
• Develop core products including donation checkouts, embeddable widgets, and donor/partner portals.
• Architect system components capable of scaling across millions of monthly transactions.
• Mentor peers through thoughtful code reviews and technical design discussions.
• Collaborate with product managers and designers to define requirements and the product roadmap.
• Actively integrate AI tools into the daily development cycle to improve efficiency and problem-solving.

Requirements

• 7+ years of professional fullstack development experience.
• Expert-level proficiency with React and Node.js (Koa or NestJS preferred).
• Deep understanding of modern JavaScript (event loop, closures, promises, prototypes).
• Experience with Webpack configuration, performance optimization, and profiling.
• Russian language proficiency for collaboration with a Russian-speaking team.

Nice to have

• 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.

Culture & Benefits

• Transparent, flat organizational structure with a strong emphasis on ownership.
• 31 days of paid time off and a 100% paid telemedicine plan.
• Assistance with home office setup (desk, chair, monitor).
• Long-term incentive through equity options.
• Support for professional growth via English courses and relevant education.