Senior Full‑Stack Engineer, Promotions Platform

wolt; Greater London; On-site; GBP 90,000 - 135,000; Full time

Job summary

Wolt is seeking a Senior Full-Stack Engineer to join the Promotions team in London. You will build scalable promotions systems, from backend services to merchant-facing tools, and own cross‑team initiatives across Europe and the US.

You’ll work with React on the frontend and Kotlin, Python, or Go on the backend, while leveraging AI-assisted development tools to improve speed and quality. You’ll be part of a diverse, international team, collaborating with product, design, and business

Qualifications

• Strong full-stack engineering experience with backend foundation.
• Strong experience with React and building product-facing web apps.
• Experience with Kotlin, Python and/or Go in production environments is preferred.
• Proven ability to take ownership in ambiguous environments, driving initiatives from idea to delivery.
• Experience leading cross-team projects, including planning, stakeholder alignment, and execution.
• Strong communication skills to gather feedback, handle differing perspectives, and align stakeholders.
• Experience working with AI-assisted development tools (e.g., Codex, Claude) to improve speed and quality.

Responsibilities

• Build and evolve end-to-end promotions systems, from backend services to user-facing tools used by merchants and internal teams.
• Design and implement scalable backend services, working with technologies such as Kotlin and Python and Go.
• Develop high-quality web applications using React, focused on usability and performance.
• Take ownership of large, cross-team initiatives, driving them from ideation through planning, alignment, and delivery.
• Work closely with product, design, and business stakeholders to shape solutions and ensure successful outcomes.
• Operate effectively in ambiguous environments, bringing structure, clarity, and momentum to complex problem spaces.
• Contribute to improving engineering practices, tooling, and development workflows across the team.
• You’ll have strong ownership, work with cross-functional teams across Europe and the US, and be part of a diverse and international team.
• Daily usage of AI tools.

Skills

Full-stack engineering

React

Kotlin

Python

Go

Ambiguity ownership

Cross-team collaboration

AI-assisted development tools

Job description

Wolt is seeking a Senior Full-Stack Engineer to join the Promotions team in London. You will build scalable promotions systems, from backend services to merchant-facing tools, and own cross‑team initiatives across Europe and the US.

You’ll work with React on the frontend and Kotlin, Python, or Go on the backend, while leveraging AI-assisted development tools to improve speed and quality. You’ll be part of a diverse, international team, collaborating with product, design, and business