About the Position

Lead/Principal Go Developer (AdTech)

Principal Senior Remote

Locations: Africa (Egypt, Morocco, Uganda), Latin America (Brazil, Colombia), North America (Canada, USA), Europe (Czech Republic, Germany, Poland, Slovakia, Spain, UK, Ukraine)

Departments: Software Development, C++, Go, Engineering

Are you ready to take on a high-impact role in building cutting-edge advertising technology? We are looking for a Lead/Principal Go Developer to join our team and design a high-load, low-latency real-time bidding platform.

At Sigma Software, we deliver innovative, scalable solutions that empower industries and drive measurable results. You will work alongside talented professionals in a culture that values expertise, collaboration, and continuous growth.

Why join us? We offer competitive benefits, flexible working arrangements, and opportunities to work on challenging projects that push the boundaries of technology.

Responsibilities

Design and implement core Back-End services for real-time bidding, optimization, and ad delivery workflows
Build custom bidding agents for real-time bid decisioning
Develop high-load, low-latency components supporting real-time auction and delivery mechanics
Implement proprietary pacing, bid-shading, and optimization logic to improve campaign efficiency
Design and integrate forecasting capabilities for impressions, reach, outcomes estimation, and campaign planning
Work with OpenRTB, JSON, protobuf, and other ad-tech protocols and data formats
Integrate with data and metrics pipelines to support real-time optimization and reporting
Implement observability, monitoring, and troubleshooting capabilities (LGTM/ELK stack)
Collaborate with product, engineering, data, and ad operations stakeholders to deliver scalable performance advertising capabilities

Requirements

At least 7 years of relevant experience as a Back-End Developer in commercial projects
Strong production experience with Golang
Experience designing and building high-load, low-latency distributed systems
Hands-on experience with JSON-based integrations, protobuf or similar protocols
Experience with low-latency data stores and caching technologies such as Aerospike, Redis, ElastiCache or similar
Experience with PostgreSQL or similar relational databases
Experience building production-grade services with strong reliability, scalability, and observability requirements
Ability to work independently, reason through complex system trade-offs, and contribute to architecture decisions
At least an Upper-Intermediate level of English

Nice to Have

Understanding of real-time bidding systems, auction mechanics, and AdTech domain
Understanding of pacing, bid optimization, forecasting, or performance advertising delivery mechanics
Experience working on DSP, SSP, Ad Exchange, ad server, or performance marketing platforms
Experience with integration of LGTM/ELK or similar observability stacks

We Offer

Competitive benefits
Flexible working arrangements
Opportunities to work on challenging projects that push the boundaries of technology

About the Company

Our customer is a globally recognized technology-driven company operating in the digital advertising space. They specialize in delivering scalable, high-performance solutions that empower advertisers to optimize campaigns in real time. With a strong culture of innovation and excellence, they are committed to building platforms that shape the future of programmatic advertising.

Professional Profile

Analytical mindset with strong problem-solving skills
Ability to work in fast-paced environments
Excellent communication skills for cross-team collaboration
Self-motivated and proactive approach to work
Strong attention to detail and commitment to quality

Why Us

Diversity of domains and business
Wide selection of technologies
Medical and legal support
Cool and vibrant community of professionals
Continuous education and growth opportunities
Flexible schedule
Remote work
Stylish and comfortable office (for your choice of where to work)
Sports events and communities

REF4062C

Lead/Principal Go Developer

Job description