Staff Full Stack Engineer (Vertical Applications)

Zeta Global; York and North Yorkshire; On-site; GBP 90,000 - 120,000; Full time

Job summary

Zeta Global in the United Kingdom is seeking a senior software engineer to own vertical web applications from idea to production. You will collaborate with product owners to define problems, architect backend services, integrate with Zeta's core platform, build frontend, and ship to production with a focus on reliability.

You’ll work with Python, Java, Ruby, or Node.js and craft polished React/TypeScript frontends.

Qualifications

• 10+ years of software engineering experience with ownership of large systems.
• Strong proficiency in two or more of Python, Java, Ruby, Node.js.
• Frontend skills in React/TypeScript and solid REST/API design.
• Experience with AI-assisted development tools is a plus.

Responsibilities

• Own vertical web applications from idea to production and run them.
• Architect backend services and build polished frontend experiences.
• Ship features with CI/CD and maintain observability and reliability.
• Collaborate with product owners and mentor engineers.
• Lead technical initiatives and communicate complex decisions clearly.

Skills

Python

Java

Ruby

Node.js

React

TypeScript

CI/CD

Agile / TDD

Tools

Cursor

Claude Code

Gemini

Codex

Job description

• Our Vertical Applications team builds web applications that bring the power of ZMP to specific industries – Healthcare, Political, Retail, and more
• Every vertical comes with its own fascinating challenges: unique compliance requirements, distinct data models, and workflows that genuinely matter to the people using them
• It’s the kind of work where you get to learn new domains, solve real problems, and see your applications make a tangible impact
• You’ll own applications end-to-end: partner with product owners to define the problem, architect the backend, integrate with Zeta’s core platform, build the frontend, ship to production, and ensure operational excellence
• We value clean, simple architectures, test-first development, and continuous delivery
• AI-assisted development with tools like Cursor, Claude Code, Gemini and Codex is embedded in our everyday workflow, and we’re excited about what agentic engineering unlocks for both development velocity and software quality
• Own vertical web applications from idea to production – working closely with product owners, designing the architecture, building it, shipping it, and running it
• Architect backend services (Python, Java, Ruby, Node.js) with a focus on simplicity and reusability across verticals, so good patterns compound over time
• Build polished frontend experiences in React/TypeScript/Ant Design System that connect seamlessly with backend APIs (REST, Thrift)
• Ship continuously and confidently through CI/CD, with observability, resilience and reliability built in from the start
• Use AI-assisted development tools as a natural part of your workflow to move faster while keeping quality high
• Weave AI/LLM capabilities into vertical applications, opening up new possibilities for each domain
• Collaborate across teams – mentor fellow engineers, lead technical initiatives, and bring clarity to complex decisions for both technical and non-technical audiences

You’re a strong communicator who enjoys working directly with product owners, proposing architectures, building consensus across teams, and then making it happen. You’re energized by learning new domains and collaborating with people who care about their craft10+ years of software engineering with a history of owning and operating the systems you build. You’re deeply proficient in at least two of Python, Java, Ruby, or Node.js, with solid React/TypeScript skills on the frontend. Continuous delivery, test-driven development, agile and shift-left are things you genuinely practice – not just checkboxes on a process documentYou’re comfortable building and operating scalable, distributed, high performant systems and navigating multi-tenant, compliant environments. You’re already using AI-assisted coding tools (Cursor, Claude Code, Gemini, Codex, or similar) and you’re curious about pushing those workflows furtherMarTech or AdTech experience (DSPs, bid stream processing, data-intensive platforms)Domain knowledge in Healthcare, Political, or Retail verticals