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# Software Engineer - Ads & Commercial Development

- **Company:** dmg media
- **Location:** London, UK
- **Contract:** Permanent contract
- **Skills:** Clean Code Principles, JavaScript (Programming Language), Application Programming Interfaces (APIs), Program Optimization, Cross-Origin Resource Sharing (Ajax Programming), Data Structures, Cursor (Graphical User Interface Elements), Software Debugging, DevOps, Document Object Model, Memory Management, Performance Tuning, TypeScript, Web Performance Optimization, Web Standards, Web Usability, GitHub Copilot, ReactJS, Large Language Models, Ios Frameworks, Backend, Vue.js, Kubernetes, Front End Software Development, Docker
- **Published:** August 28, 2026
- **Apply:** https://uk.indeed.com/viewjob?jk=5fdd06585f456dcf

## About the Role

* Browser Internals: Deep understanding of browser architecture, critical rendering paths, painting, layout engine mechanics, and memory management.
 * Ad-Tech Ecosystem (Highly Desirable): Conceptual knowledge of digital advertising infrastructure, including header bidding, ad servers, tracking pixels, and privacy-focused sandbox APIs.
 * Modern Web Standards: Strong grasp of security protocols (CORS, CSPs), cookie policies, and web performance metrics (Core Web Vitals).

About You

Essential Skills:

 * Languages: Expert-level mastery of TypeScript and vanilla JavaScript (ES6+).
 * Runtime Environments: Strong proficiency in js for backend services and build tooling.
 * Low-Level DOM Manipulation: Proven experience working directly with the DOM and Browser APIs without relying on abstraction frameworks (React, Vue, etc.).
 * DevOps & Infrastructure: Solid hands-on experience with Docker containers, Kubernetes (K8s), and building robust CI/CD pipelines.
 * Software Engineering Fundamentals: Excellent command of data structures, algorithms, system design, and clean code architectures.

Capabilities:

 * Performance Optimisation: Ability to profile, debug, and optimize code to execute with minimal CPU and memory footprints in highly constrained environments.
 * Tooling Leverage: Proactive adoption and strong leverage of LLM/AI coding tools (e.g., GitHub Copilot, Cursor) to accelerate development and automate repetitive workflows.
 * Autonomy & Problem Solving: Capability to diagnose complex, asynchronous race conditions across different browser environments and vendor scripts.

## Description

We are looking for a skilled JavaScript/TypeScript Engineer to join our Ads and Commercial Development team. In this role, you will build and optimize the high-performance, low-latency infrastructure that powers our commercial platforms.

Unlike standard full-stack or frontend roles that rely heavily on heavy UI frameworks, this position focuses deeply on the inner workings of the browser. You will write highly efficient vanilla JavaScript, interface directly with browser APIs, and manage the containerised infrastructure that serves our commercial products at scale.


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