Golang Developer

Sigma Software Group provides innovative, scalable software solutions across various industries. The customer is a globally recognized technology-driven company specializing in high-performance digital advertising solutions, including real-time bidding and optimization platforms for programmatic advertising.

• 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;
• Collaborate with product, engineering, data, and ad operations stakeholders to deliver scalable performance advertising capabilities.

• Minimum 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, or ElastiCache;
• 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;
• 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.

• Competitive benefits;
• Flexible working arrangements;
• Opportunities to work on challenging projects.