Senior C# Software Engineer (AdTech)

Europe Europe (remote) Remote (Ukraine) Ukraine .NET Software Developer

Required skills

C# / strong
PostgreSQL / strong
Kubernetes / good
CI/CD / good
English / strong

We are seeking a highly skilled and experienced Senior C# Developer to join a distributed engineering team that is building a mission-critical analytics and data pipeline platform in the AdTech domain. This platform processes and analyzes large volumes of data to support real-time bidding, revenue optimization, and performance tracking for online publishers.

As a Senior Developer, you will design and maintain Back-end microservices using C#, working with technologies such as PostgreSQL and Kubernetes to ensure high scalability and reliability. The platform supports both real-time and batch analytics, enabling precise, data-driven decision-making in a fast-moving industry.

You will collaborate closely with the DevOps and Front-end teams to implement new data use cases and ensure efficient system performance.

By joining this team, you will have the opportunity to:

  • Contribute to a high-load, real-time analytics platform in a data-intensive environment
  • Work with modern technologies and influence the Back-end architecture
  • Be part of a skilled and collaborative engineering culture

Customer

Our Customer is a leading AdTech company that helps online publishers maximize ad revenue through programmatic advertising and data-driven monetization. Their distributed teams across Europe ensure fast-paced and meaningful work.

Project

You’ll work on a data analytics and pipeline platform that processes large volumes of data. This platform supports real-time and batch workflows, which are critical for decision-making and revenue tracking.

Requirements

  • 6+ years of Back-end development experience
  • Expert-level proficiency in C# and relational databases, especially PostgreSQL
  • Hands-on experience with Kubernetes and containerized deployments
  • Solid understanding of performance tuning, scalability, and data optimization in distributed systems
  • Experience of working with CI/CD pipelines (e.g., Jenkins) and OpenAPI standards
  • B2+ or higher level of English

Would be a plus:

  • Experience with ClickHouse
  • Knowledge of AdTech domain
  • Familiarity with Prometheus and Grafana for monitoring and alerting

Responsibilities

  • Design and develop C# microservices for processing and enriching data
  • Implement scalable ingestion, retention, and aggregation logic
  • Optimize performance (horizontal scaling, sharding)
  • Collaborate with DevOps and Front-end teams to support data-driven features
  • Maintain high system reliability and scalability
  • Own architecture and make tech decisions in a senior environment

WHY US

  • Diversity of Domains & Businesses
  • Variety of technology
  • Health & Legal support
  • Active professional community
  • Continuous education and growing
  • Flexible schedule
  • Remote work
  • Outstanding offices (if you choose it)
  • Sports and community activities

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