Must have

• Golang

• Go

• REST API

• AWS

• Polish (Fluent)

• English (C1)

Requirements description

• 5+ years of backend experience, with 3+ years of Go (Golang) in production.
• Strong grasp of idiomatic Go, interfaces, goroutines, and testing.
• Proficiency in concurrency: mutexes, channels, race condition avoidance, and throughput tuning.
• Experience building and scaling HTTP and REST APIs.
• Familiarity with gRPC and Protocol Buffers (nice to have).
• Deep understanding of low-latency, high-throughput system design (100k+ QPS preferred).
• Experience with profiling and debugging tools: pprof, trace, memory and CPU bottleneck identification.
• Competence with caching strategies, load balancing, and performance benchmarking.
• Hands-on experience with OpenRTB protocol and real-time bidder infrastructure.
• In-depth understanding of the programmatic ad ecosystem, especially DSPs and RTB mechanics.
• Experience with containerization: Docker & Docker Compose (multi-container setups, efficient Dockerfiles).
• Familiarity with AWS (or similar cloud platforms): EC2, S3, Kinesis, Lambda, IAM, and VPC basics.
• Knowledge of metrics and observability tools like Prometheus and Grafana.
• Comfortable with Git workflows, shell scripting, and handling CI/CD pipelines.

Offer description

This is us

At Avenga, we believe that human creativity empowers technology that matters. Operating globally, our 6000+ specialists provide a full spectrum of services, including business and tech advisory, enterprise solutions, CX, UX and Ul design, managed services, product development, and software development.

This is the job

We are looking for an experienced Golang Developer to take a lead role in building and optimizing high-throughput bidding systems within the context of programmatic advertising.

Your responsibilities

1. designing and evolving bidder infrastructure,
2. collaborating directly with clients,
3. ensuring systems meet strict low-latency and real-time requirements.