Backend Developer Jobs

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Location:
Serbia

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

515500.00 - 679500.00 RSD / Month

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Job Description:

As a Backend Developer, you will be a key architect of the engine that powers our global platform. You'll resolve complex challenges in a high-load, distributed system, building and scaling the infrastructure that processes millions in donations. This is not a maintenance role; it's a high-impact, product-focused engineering position where clean architecture, performance, and reliability are paramount. You will work on a complex product ecosystem—from our modern checkout experience to donor portals and massive analytics pipelines—all powered by a cutting-edge tech stack.

Job Responsibility:

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

Requirements:

5+ 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 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
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

What we offer:

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
Stock options

Additional Information:

Job Posted:
December 08, 2025

Employment Type:

Fulltime

Work Type:

Remote work

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Backend Developer