Senior Backend Engineer

Fundraise Up • Georgia - Remote, GA

8h • GEL 12,950 - GEL 14,850 • Remote

About The Position

Fundraise Up is a global fundraising platform dedicated to making donations fast, seamless, and accessible. Our technology processes millions of dollars in donations monthly, focusing on innovation for better results like faster load times, higher conversion rates, global payment support, and accessibility-first design. We serve major nonprofits globally and are recognized for our product quality and impact. We operate in the enterprise segment, serving nonprofit organizations across North America, the United Kingdom, Australia, and Europe. We are building a large and complex product ecosystem that includes a modern checkout experience, customizable widgets, donor, organization, and partner portals, admin tools, and internal apps. Our backend is powered by Node.js (Koa, NestJS) and MongoDB. The frontend stack includes Webpack, Vue.js, and React, with nearly all code written in TypeScript. For high-throughput messaging and background processing, we use Kafka and Bull (Redis). Analytics data is stored in ClickHouse, and we use Elasticsearch for search. We are a distributed team of 160+ product professionals, including 80+ engineers, primarily based across Spain, Poland, Portugal, Georgia, Armenia, Serbia, Turkey, and Cyprus. Many of our developers have 5-10+ years of experience, and we foster a culture of deep technical curiosity and knowledge sharing. We operate as a focused team, valuing thoughtful collaboration, strong engineering practices, and a product mindset, with quality, mentorship, and mutual respect as priorities. As a Backend Engineer, you will be a key architect of the engine powering our global platform, resolving complex challenges in a high-load, distributed system and scaling the infrastructure that processes millions in donations. This is a high-impact, product-focused engineering position where clean architecture, performance, and reliability are paramount. You will work on a complex product ecosystem, from checkout experiences to donor portals and analytics pipelines, using a cutting-edge tech stack including Node.js, TypeScript, MongoDB, Kafka, Bull (Redis), ClickHouse, and Elasticsearch. AI is a default tool at Fundraise Up, and team members are expected to actively use AI in their daily work, identify its potential to improve processes, and grow their fluency with evolving tools.

Requirements

• 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.
• A strong understanding of system design, clean architecture principles, and performance optimization.
• The ability to work independently, take ownership of your work, and see projects through to completion.
• Comfortable working within a Russian-speaking team.

Nice To Haves

• 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.
• Curiosity and a hypothesis-driven mindset
• Ability to communicate complex analytical concepts to non-technical audiences
• Detail-oriented with a strong sense of ownership
• Comfort working in fast-paced, data-rich environments

Responsibilities

• Design, build, and maintain clean, efficient, and scalable backend services in Node.js and TypeScript.
• Develop new product features from concept to deployment, collaborating closely with product managers and frontend engineers.
• Own key parts of our backend architecture, making critical decisions that enhance performance, reliability, and security.
• Write comprehensive unit tests and conduct thorough code reviews to maintain code quality.
• Proactively identify and implement system improvements, refactoring legacy code where necessary.
• Contribute to a culture of engineering excellence by mentoring others and sharing your expertise.
• Actively use AI in day-to-day work, identify where AI can change the shape of problems, and grow fluency as tools evolve.

Benefits

• 31 days off.
• 100% paid telemedicine plan.
• Home Office Setup Assistance: the company offers assistance with purchasing furniture (office chair, office desk, monitor) and other items to create a comfortable workspace.
• English learning courses.
• Relevant professional education.
• Gym or swimming pool.
• Co-working.
• Remote working.
• Equity options.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed