Backend Developer (.NET/ Node.js) (only Ukraine) Gemicle $

Madfish

Madfish

Software Engineering

Ukraine

Posted on May 10, 2026

We create solutions that put the client at the center of marketing. Marketing activities begin with an understanding of the client's needs and behavior, not with a product or campaign.

The platform brings together three key components:

rich historical, real, and forecast customer data, AI-controlled orchestration of the client's multi-channel paths, and statistically reliable assessment of the impact of each marketing action.

This allows you to create personalized, efficient, and measurable marketing that is truly customer-oriented.

Now we are looking for a Backend Developer to join our growing international team. In this role, you will work on data-intensive systems, building scalable backend services and contributing to modern data-driven solutions.
You will collaborate with engineers and stakeholders, working in a fully remote environment where communication, ownership, and teamwork are essential.

Responsibilities

  • Design, develop, and maintain scalable backend services and APIs
  • Build and maintain backend systems using C#/.NET and Type Script/Node.js
  • Develop end-to-end features in a complex, data-intensive web application.
  • Write clean, maintainable code with strong unit and end-to-end test coverage.
  • Collaborate closely with product managers, data teams, and engineers across countries
  • Contribute to improving system performance, reliability, and scalability
  • Tackle advanced engineering challenges across multiple languages and environments.
  • Leverage AI tools and technologies to improve development workflows and product capabilities


Requirements

  • 4+ years of backend development experience with C# / .NET
  • Working knowledge of TypeScript / Node.js (NestJS a plus)
  • Solid understanding of microservices architecture
  • Experience with SQL databases(MSSQL/Snowflake preferred)
  • Experience building and consuming REST APIs
  • B.Sc. in computer science or equivalent.


Nice to Have

  • Experience with NestJS
  • Experience with Angular
  • Comfortable with Docker and containerized environments
  • Experience with GCP, Kubernetes, CI/CD pipelines

    What we offer:
  • 20 working days’ vacation;
  • 10 paid sick leaves;
  • public holidays;
  • equipment;
  • accountant helps with documents.