Principal/Senior Backend Engineer

🕒 June 25

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Sigma Software Group

WebsiteLinkedInAll Job Openings

1001 - 5000 employees

Founded 2002

💼 Consulting

🏥 Healthcare

🚘 Automotive

Consulting • Healthcare • Automotive

Sigma Software Group is a multinational company, established in 2002, that specializes in providing high-quality software development, graphic design, testing, and support services. The company focuses on delivering solutions across various industries such as automotive, telecommunications, aviation, advertising, gaming, banking, real estate, and healthcare. Sigma Software values professional growth, offers remote work opportunities worldwide, and caters to world-renowned clients like AstraZeneca, Scania, and SAS. The company emphasizes a culture of continuous education, mentorship, and flexible work environments, making it a preferred workplace for IT specialists aiming to work on complex solutions utilizing cutting-edge technologies. Sigma Software is committed to innovative solutions and engineering the future while also contributing to social causes such as charitable work in Ukraine.

📋 Description

• Design and implement core backend 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

• 5+ years of relevant experience as a Backend Engineer in commercial projects • Strong backend engineering 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 • Upper-Intermediate English level

🏖️ Benefits

• Competitive benefits • Flexible working arrangements