Senior software engineer Work, Jobs in Harefield, Eng (with Salaries)

Senior Software Engineer — Real-Time Ad Serving
Zeta Global —London
- Remote
- English
- Java
- AWS
Senior Software Engineer
JFA Medical —London
- £100,000 a year
- Full-time
- Computer Science
- Engineering
- AWS
Quick apply
Senior Software Engineer
NPL —Middlesex
- Software development
- Linux
Senior IT Support Engineer - UK - Hybrid
Brave —London
- £100,000 - £120,000 a year
- Customer service
- JavaScript
- Organisational skills
Senior Full-Stack Software Engineer
Heim —London
- £95,000 - £120,000 a year
- Full-time
- Hybrid work
- Bachelor's degree
- APIs
- AI
Quick apply
Senior Software Engineer
Confluent —London
- £84,500 - £99,300 a year
- Full-time
- Java
- C++
- Computer networking
Senior Software Engineer, Backend (Payments)
Affirm —London
- £120,000 - £168,000 a year
- Remote
- AWS
- Communication skills
- Python
- Employee stock purchase plan
Senior Software Engineer II - Wise for Enterprise
Wise —London
- £111,000 - £145,000 a year
- Full-time
- Java
- Mentoring
- Leadership
Quick apply
Senior Software Engineer II - Wise for Enterprise
Wise Australia Investments —London
- £111,000 - £145,000 a year
- Java
- Mentoring
- Leadership
Senior Software Engineer
HiveMQ GmbH —London
- £58,000 - £120,000 a year
- Full-time
- Remote
- APIs
Quick apply
Senior Staff+ Software Engineer, Kubernetes Platform
Anthropic —London
- £325,000 - £485,000 a year
- Hybrid work
- AWS
- C++
- Bachelor's degree
- Flexible schedule
8d
Senior Software Engineer
Legl —London
- Remote
2h
Senior Software Engineer, Scale
Airwallex —London
- £74,822 - £138,955 a year
- Full-time
- Azure
- Java
- AWS
Senior Software Engineer I - Investments - Java
Wise —London
- £87,500 - £111,000 a year
- Full-time
- Hybrid work
- Java
- Communication skills
Quick apply
Senior Staff+ Software Engineer, Node Infra
Anthropic —London
- £325,000 - £485,000 a year
- Hybrid work
- Azure
- System design
- AWS
- Flexible schedule
Senior Software Engineer
Investa —London
- £85,000 - £105,000 a year
- Full-time
- Hybrid work
- Azure
- Java
- AWS
- Annual leave
Quick apply
Senior Software Engineer I - Wise for Enterprise - Banks
Wise —London
- £87,000 - £111,000 a year
- Full-time
- Java
- Communication skills
- Banking
Quick apply
Senior Software Engineer II - Investments - Java
Wise Australia Investments —London
- £111,000 - £145,000 a year
- Java
- Communication skills
Senior Software Engineer
Converge —London
- £90,000 - £100,000 a year
- Hybrid work
- Microsoft Outlook
- Python
Senior Software Engineer, Consensus
Anza —London
- Full-time
- Remote
- Computer Science
- Engineering
- C++
Quick apply

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senior software engineer jobs near harefield, eng

Senior Software Engineer — Real-Time Ad Serving

Zeta Global -
London

Apply Now

Job details

Qualifications

Cloud infrastructure
Rust (programming language)
Go
Adtech
Data structures
English
MongoDB
Java
AWS
C++
Distributed systems
Back-end development
AI
Lua

Full job description

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

Apply Now

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senior software engineer jobs in harefield, eng

Senior Software Engineer — Real-Time Ad Serving