Senior/Lead Software Engineer, Zeta Global
Real-Time Ad Serving, LiveIntent
The AI marketing cloud
Be an early applicant
The AI marketing cloud
1001+ employees
Be an early applicant
1001+ employees
Company mission
To enable brands to build repeatable and scalable programs that accelerate business growth, efficiently, and effectively, and drive higher ROI on their marketing investments.
Role
Who you are
- 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 (the interview process will be held in English)
- Experience with Lua or willingness to learn (we provide time and the right environment)
- 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
What the job involves
- As a Senior Software Engineer on the LiveIntent Real-Time Ad Serving team, you will design, develop, and own the business logic that powers programmatic advertising at scale — ad selection, targeting, frequency capping, budget pacing, and delivery optimization
- The real-time platform is built on C++ and Lua: C++ provides the high-performance server framework, while Lua implements the business logic layer
- You will work primarily in Lua, developing and evolving the features that directly serve LiveIntent's product — ensuring advertisers get the best outcomes and publishers maximize their revenue
- While we're open to candidates with experience in any backend language, a willingness to work with Lua is essential — we provide time and the right environment to get up to speed
- You will collaborate closely with Product, working on features that directly impact LiveIntent's customers — from ad targeting and delivery to reporting and optimization
- This is a hands-on engineering role where your code runs in production handling billions of daily transactions
- 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
Our take
Zeta Global is a cloud-based AI marketing platform helping companies acquire, grow and retain customers more efficiently. Its flagship Zeta Marketing Platform (ZMP) combines identity resolution, consumer intelligence, and omnichannel activation into a single platform. Using one of the industry's largest proprietary database and advanced AI, Zeta makes personalized marketing simple for enterprise brands worldwide.
Its platform is particularly valuable in today's privacy-first, data-driven marketing environment. It helps brands understand individual customers and deliver relevant experience across every channel, from email and SMS ot digital and social. Serving top advertisers and Fortune 500 companies, Zeta turns complex data into actionable insights, so markets have a deeper relationship with their customers and drive measurable results in a competitive landscape.
Recently, Zeta expanded its capabilities with acquisition of Marigold's enterprise software business, adding over 100 enterprise clients and new loyalty and engagement tools. This strenghten's Zeta's "One Zeta" model, creates cross-selling opportunities, and extends its footpirnt in EMEA and APAC. Also backed by strong AI investments, a massive proprietary identity graph, and consistent revenue growth, Zeta is in a good position to help brands deliver smarter, more personalized marketing at scale for years to come.
Steph
Company Specialist at Welcome to the Jungle
Insights
11% employee growth in 12 months
Company
Funding (last 2 of 3 rounds)
Apr 2017
$115m
SERIES F
Jul 2015
$125m
LATE VC
Total funding: $310m
Company HQ
Midtown South, New York, NY
Leadership
David A Steinberg
(Co-Founder, CEO & Chairman of the Board)Prior to founding Zeta and CAIVIS, they founded InPhonic, the largest seller of wireless phones and communications products and services on the Internet. InPhonic was #1 on Inc. 500 list of fastest growing companies in 2004
John Sculley
(Co-Founder, Vice Chairman of ther Board & Investor)Former CEO of Apple Computer. They joined Apple in 1983 when the Company had $600 million in revenues; by the time they left, Apple's revenues exceeded $8 billion.
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