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.
Job Description- 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
- 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
Top Skills
What We Do
Sigma Software Group, an award-winning and trusted IT partner, has been serving customers for over 21 years, providing comprehensive IT solutions to various businesses, ranging from startups to established software product houses. As one of Europe's substantial IT consultancies, it brings together a dedicated workforce of over 2,100 professionals in 40 offices across 19 countries. With a diverse client base, including more than 300 enterprises, including Fortune 500 stalwarts, Sigma Software Group is a preferred choice for developing solutions that help businesses create cutting-edge products while meeting their unique needs.
Sigma Software Group operates as a dynamic ecosystem of tech companies, offering 25 ready-to-implement innovative products and 40+ value-added services. Furthermore, Sigma Software Group is committed to fostering innovation through initiatives such as the Sigma Software Labs business incubator, Sigma Software University, the SID Venture Partners VC Fund, UA Tech Network, Techosystem, the European Business Association, and other collaborative efforts.
Since 2015, Sigma Software Group has consistently earned recognition on the IAOP's prestigious World's Top 100 Outsourcing list. The company's accomplishments have also been acknowledged by prominent global media outlets such as Forbes, CNBC, The Times, and Reuters
