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Open nowPosted 74 days ago

Software Engineer – Ads & Commercial Development

dmg::media56 open roles

Where
London
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Your applicationOpen nowSoftware Engineer – Ads & Commercial Developmentdmg::media · London

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The clock on this job

Early applications get read.

13.7% of postings close within 7 days. Measured by our own scanner across the market. dmg::media postings stay open a median of 39 days.

Share of postings closed within
  1. 2.2%1 day
  2. 4.7%3 days
  3. 13.7%7 days
  4. 22.1%14 days
  5. 37.8%30 days
  6. 59.1%60 days
This job: posted 74 days ago

dmg::media median: 39 days open

The posting

Location: Hybrid / x2 days per week in the office (DMGT HQ - High Street Kensington, London) Position: Permanent

About the Role

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.

Role-Related Knowledge:

  • 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.

Cultural Add:

  • Engineering Excellence: You take pride in writing clean, well-tested, and maintainable code, avoiding unnecessary dependencies.
  • Pragmatic & Technical Curiosity: You enjoy peeling back the layers of software to understand how things work under the hood rather than just making them work.
  • Collaboration & Openness: You actively participate in code reviews, share technical insights, and welcome constructive feedback.

Package Description

Our benefits package increases the longer you’ve been with us. Here’s what to expect:

  • 25 days’ holiday (increasing by 1 per year up to a total of 30)
  • Pension plan and life cover
  • Discounts on online shopping, dining cards and vouchers, and access to our Employee Assistance Programme
  • Onsite gym, subsidised canteen and onsite nurse and GP clinics

Plus much more...

About Us

Daily Mail is an award-winning, multi-platform newsbrand reaching more than 33 million print and online readers each month. The world-famous Mail offers a unique blend of breaking news, agenda-setting exclusives, showbiz, Femail, health, sport and lifestyle stories across print, digital, video, audio and social channels.

Its global newsroom of journalists, formidable story-getting power, and breadth of content formats delivers highly engaging, trusted Daily Mail content to millions of loyal and new audiences. Founded in 1896, The Daily Mail is today the largest news publisher on TikTok, with more than 28 million total followers and more than 45 billion views in the past year. A trailblazing global phenomenon, Daily Mail is part of dmg media.

www.dailymail.co.uk

Our Commitment

We are committed to increasing diversity and maintaining an inclusive workplace culture. We welcome applications from all qualified candidates regardless of their ethnicity, race, gender, religious beliefs, sexual orientation, age, marital status, or disability.

We are Disability Confident Committed. Please let us know if you require any recruitment documentation in other formats or if you require reasonable adjustments to be made during the recruitment process. Please be assured that any such information will be held separately to your recruitment application and will not be considered as part of the selection process.

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