AdTechTalent
Engineering3 months agoRemote

Zeta Global

Senior Software Engineer — Real-Time Ad Serving

LuaC++GoRustJavaMongoDBAWSOpenRTBprogrammaticad techRTBDSPSSPreal-timedistributed systemsbackendsoftware engineering

Key details

Salary

Not specified

Employment type

Full-time

Seniority

Senior

Years experience

5-10

Location

London, United Kingdom

Full job description

Senior Software Engineer role on the LiveIntent Real-Time Ad Serving team. Responsibilities include designing, developing, and owning business logic for programmatic advertising such as ad selection, targeting, frequency capping, budget pacing, and delivery optimization. The platform uses C++ for server framework and Lua for business logic. Primary work in Lua with support for learning it. Collaborate with Product on features impacting advertisers and publishers. Handle billions of daily transactions. Hybrid/remote role based in Berlin or Prague offices. Requirements: 5+ years backend software engineering experience, strong computer science fundamentals, experience with distributed systems, full software lifecycle exposure, commitment to code quality, proficiency in English, experience or willingness to learn Lua. Plus: experience in ad tech, systems-level languages (C++, Go, Rust, Java), MongoDB, real-time data processing, AWS cloud infrastructure, AI-assisted development tools, OpenRTB protocol. Benefits include excellent medical, dental, and vision coverage.

What you'll do

  • Develop and optimize business logic in Lua for ad selection, targeting, frequency capping, and budget pacing
  • Design, build, and maintain real-time services processing 200K+ requests per second with strict latency requirements
  • Work closely with Product to deliver features that meet advertiser and publisher needs
  • Ensure code quality through code reviews, automated testing, and continuous integration
  • Participate in architecture discussions and influence the technical roadmap
  • Participate in on-call rotation to support production systems

Requirements

  • 5+ years of software engineering experience in backend development
  • Deep understanding of computer science fundamentals: data structures, algorithms, performance optimization
  • Experience building and operating distributed systems in production
  • Exposure to the full software development lifecycle — from design to production and monitoring
  • Strong commitment to code quality, automated testing, and documentation
  • Proficient English
  • Experience with Lua or willingness to learn
  • Experience in online advertising / ad tech (RTB, programmatic, DSP/SSP) is a plus
  • Proficiency in a systems-level language (C++, Go, Rust, or Java) is a plus
  • Experience with MongoDB and real-time data processing is a plus
  • Experience with cloud infrastructure (AWS) at scale is a plus
  • Experience with AI-assisted development tools and agentic workflows is a plus
  • Experience with OpenRTB protocol and ad exchange integrations is a plus

Tech stack

LuaC++GoRustJavaMongoDBAWSOpenRTB

Benefits

Excellent medical, dental, and vision coverage

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