Senior Go Developer (AdTech)
We are looking for a Senior Go Developer to join our dynamic team and work on cutting-edge AdTech solutions. This role offers the opportunity to experiment with AI, LLMs, and emerging technologies while solving complex challenges in large-scale data processing.
Customer
Our customer is a global leader in contextual advertising with more than 500 employees worldwide. They specialize in delivering highly relevant ads by leveraging AI, real-time technology, and large-scale data processing. Operating in the AdTech industry, they are recognized for innovation in Connected TV (CTV) advertising. The team you will join works with the agility of a startup while benefiting from the resources of a global organization.
Project
You will contribute to the development of a smart advertising platform that processes terabytes of data to understand audiences and deliver precise, contextual ads. The platform combines AI, LLMs, and emerging technologies to push the boundaries of CTV advertising. In this role, you will own innovation end-to-end — from research and prototyping to delivering production-ready solutions.
Requirements
5+ years of hands-on experience using Golang
Strong experience with system architecture, deployment, and monitoring
Hands-on experience working with large-scale data workflows
Solid understanding of scalability, performance, and reliability principles
Familiarity with the RTB / CTV advertising ecosystem
Ability to translate business requirements into robust technical solutions
Strong analytical and problem-solving skills
Ability to manage multiple priorities and meet deadlines
Good communication and collaboration skills
Upper-Intermediate or higher English level
Would be a plus
Experience in AdTech or contextual advertising
Knowledge of real-time streaming systems
Experience with microservices and distributed systems
Hands-on work with high-throughput data pipelines
Experience with Python or Node.js / JavaScript
Personal Profile
Proactive problem solver who thrives in fast-paced environments
Passion for experimenting with emerging technologies
Strong sense of ownership and accountability
Team-oriented with open communication style
Continuous learner with a drive for self-improvement
Responsibilities
Design, develop, and maintain high-performance backend services using Go
Participate in architecture design and technical decision-making
Build and improve solutions for contextual targeting and audience understanding
Experiment with AI, LLMs, and emerging technologies to support product innovation
Develop and optimize workflows and data pipelines for large-scale processing
Collaborate with product managers and team members to define requirements and user stories
Translate business needs into scalable and reliable technical solutions
Prototype new ideas and evolve them into production-ready systems
Monitor, troubleshoot, and improve system performance and stability

Sigma Software
Sigma Software is a global software development company founded in 2002. It enables enterprises, startups, and product houses to meet their technology needs through end-to-end delivery, providing top-quality software dev...
Senior Go Developer (AdTech)
Senior Go Developer (AdTech)