Senior Backend Engineer (Go)

Location: Poland

Department: Dream Team

Workplace: remote

Employment Type: full

Description

We are building the next generation of our Demand-Side Platform (DSP), enabling advertisers to access premium digital inventory through high-performance programmatic technology.

Our bidder is at the heart of the platform, making real-time auction decisions and powering global advertising campaigns. We are looking for a Senior Backend Engineer (Go) to focus on platform performance, scalability, and new product capabilities in a high-load environment.

Requirements 

• Strong background and solid experience in backend software development with Go;
• Deep understanding of distributed systems and microservice architectures;
• Hands-on experience building and operating high-performance, low-latency backend services;
• Proven ability to analyze system bottlenecks and resolve complex scalability challenges;
• Ability to work independently and collaborate effectively with Product and engineering teams;
• Curiosity to understand not only how systems work, but also the business problems they solve.

Will be a plus 

• Experience with AdTech or Programmatic Advertising landscape (DSPs, SSPs, exchanges);
• Understanding of auction mechanics and large-scale decisioning systems;
• Experience with Google Cloud Platform (GCP), Kubernetes, and cloud-native environments;
• Familiarity with data-intensive applications, analytics platforms, and large-scale aggregations;
• Understanding of Machine Learning concepts and production ML integrations.

Responsibilities

• Design, develop, and maintain high-performance backend services in Go;
• Analyze and optimize distributed systems and microservice-based architectures;
• Work alongside Data Engineering and Machine Learning teams to integrate data-driven capabilities into bidder workflows;
• Collaborate closely with Product Managers to translate business needs into scalable technical solutions;
• Write high-quality, maintainable code, participate in code reviews, and contribute to engineering best practices;
• Oversee features from concept to production, identifying and resolving complex performance issues.

What we offer 

• 22 paid vacation days per year;
• 10 paid sick leave days per year;
• Paid public holidays;
• English coverage: client-sponsored group classes and GD English Speaking Club;
• Help and support from our caring HR team;
• Continuous professional growth and collaboration with talented colleagues;
• Competitive compensation for your efforts.