Senior Software Engineer — Real-Time Ad Serving

Reposted 14 Days Ago
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Berlin, DEU
Hybrid
Senior level
AdTech • Artificial Intelligence • Marketing Tech • Software • Analytics
We unify identity, intelligence, and activation to create better experiences for consumers & better results for brands.
The Role
As a Senior Software Engineer, you will design and optimize business logic for real-time ad serving, collaborating with Product to enhance ad delivery and performance.
Summary Generated by Built In

WHO WE ARE 

Zeta Global (NYSE: ZETA) is the AI-Powered Marketing Cloud that leverages advanced artificial intelligence (AI) and trillions of consumer signals to make it easier for marketers to acquire, grow, and retain customers more efficiently. Through the Zeta Marketing Platform (ZMP), our vision is to make sophisticated marketing simple by unifying identity, intelligence, and omnichannel activation into a single platform – powered by one of the industry’s largest proprietary databases and AI. Our enterprise customers across multiple verticals are empowered to personalize experiences with consumers at an individual level across every channel, delivering better results for marketing programs. Zeta was founded in 2007 by David A. Steinberg and John Sculley and is headquartered in New York City with offices around the world. To learn more, go to www.zetaglobal.com.

 THE ROLE

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.

This is a hybrid/remote role based out of our Berlin, Germany or Prague, Czech Republic offices.

ESSENTIAL RESPONSIBILITIES
  • 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
DESIRED CHARACTERISTICS
  • 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

BENEFITS & PERKS

  • Excellent medical, dental, and vision coverage

PEOPLE & CULTURE AT ZETA

Zeta considers applicants for employment without regard to, and does not discriminate on the basis of an individual’s sex, race, color, religion, age, disability, status as a veteran, or national or ethnic origin; nor does Zeta discriminate on the basis of sexual orientation, gender identity or expression.  

We’re committed to building a workplace culture of trust and belonging, so everyone feels invited to bring their whole selves to work. We provide a forum for employees to celebrate, support and advocate for one another. Learn more about our commitment to diversity, equity and inclusion here:  https://zetaglobal.com/blog/a-look-into-zetas-ergs/ 

ZETA IN THE NEWS!

https://zetaglobal.com/press/?cat=press-releases 

Skills Required

  • 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
  • Strong commitment to code quality, automated testing, and documentation
  • Proficiency in a systems-level language (C++, Go, Rust, or Java) is a plus
  • Experience in online advertising / ad tech is a plus
  • Experience with cloud infrastructure (AWS) at scale is a plus

What the Team is Saying

Stephanie
Susie
Christian Chen
David A. Steinberg
Stephen Gerber
Candice Chafey
Ana Hirani
Ana Hirani
Jennifer Westerfield
Jennifer Westerfield
Jennifer Westerfield
Roman Gun
Roman Gun
Roman Gun

Zeta Global Compensation & Benefits Highlights

How does Zeta Global ensure its pay and bonus plans are competitive?

Zeta Global supports competitive compensation through a mix of base pay, equity, performance incentives, financial benefits and employee feedback-informed rewards. The company’s total rewards approach connects compensation with ownership, financial planning and benefits that support employees’ broader well-being.

  • Competitive pay and incentives: Zeta lists competitive pay, equity, performance bonuses and an employee stock purchase plan as part of its compensation and total rewards offerings. Employees also describe compensation as a strength. A software engineer said Zeta offers “good compensation,” “best appraisals and pay raise” and a “supportive work environment,” while a director cited “compensation” as one of the strengths of the company.
  • Equity and ownership: Zeta offers company equity and an employee stock purchase plan, giving employees ways to participate in the company’s growth. Its broader financial benefits also include a 401(k) with company match, monthly financial workshops, commuter benefits and insurance coverage, reinforcing compensation as part of a larger financial wellness package.
  • Performance-oriented rewards: Employee reviews describe Zeta’s compensation as tied to performance and growth. One employee said, “Zeta pays well,” while another said compensation is “within industry range and revised every year.” A finance analyst cited “great incentives,” and a director described Zeta as a place to “shape your career” with room to move up. (Comparably; Glassdoor reviews; Indeed reviews)
  • Benefits that strengthen total rewards: Zeta’s rewards package extends beyond pay through health, dental and vision insurance, mental health benefits, pet insurance, flexible time off, parental leave, adoption assistance, fertility and family-building support, travel assistance for reproductive health procedures, volunteer days and wellness resources. The company also says it uses wellness surveys and employee feedback to shape benefits updates, including expanded parental leave and adoption assistance.
  • External signals:
    • Compensation sentiment: Employees on external review sites describe Zeta’s compensation as “good,” “great” and competitive, with reviews citing pay raises, incentives, benefits and performance-based earning potential. (Glassdoor reviews; Indeed reviews; Comparably)
    • Benefits signals: External profile data lists company equity, performance bonuses, an employee stock purchase plan and a home-office stipend for remote employees.
    • Financial wellness: Zeta’s benefits include 401(k) matching, financial workshops, insurance coverage and employee stock purchase participation. 

Bottom line: Zeta Global’s compensation approach combines competitive pay, performance incentives, equity, stock purchase access and broad benefits, giving employees both near-term rewards and longer-term financial participation in the company’s growth.

Zeta Global Insights

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The Company
HQ: New York, NY
2,429 Employees
Year Founded: 2007

What We Do

Zeta Global (NYSE: ZETA) is the AI Marketing Cloud that leverages advanced artificial intelligence (AI) and trillions of consumer signals to make it easier for marketers to acquire, grow, and retain customers more efficiently. Through the Zeta Marketing Platform (ZMP), our vision is to make sophisticated marketing simple by unifying identity, intelligence, and omnichannel activation into a single platform – powered by one of the industry’s largest proprietary databases and AI. Our enterprise customers across multiple verticals are empowered to personalize experiences with consumers at an individual level across every channel, delivering better results for marketing programs. Zeta was founded in 2007 by David A. Steinberg and John Sculley and is headquartered in New York City with offices around the world.

Why Work With Us

At Zeta, people have the freedom to think creatively, take initiative, and grow. We value curiosity, innovation, and teamwork, empowering everyone to use AI and technology in smarter ways to drive impact for clients, consumers, and each other while shaping the future together.

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Zeta Global Offices

Hybrid Workspace

Employees engage in a combination of remote and on-site work.

Typical time on-site: Flexible
HQNew York, NY
Bengaluru, Karnataka
Boca Raton, FL
Brussels, BE
El Segundo, CA
Hyderabad, Telangana
London, GB
München, DE
Nashville, TN
Paris, FR
Praha, CZ
San Francisco, CA
Washington, DC
Learn more

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