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About

Looking after your world
Lloyd Sibson outdoor photo

Lloyd Sibson BA

Experimentation Engineer | CRO Developer @ British Gas ⚡ | Adobe Target | Monetate | A/B Testing | AI | Personalisation

United Kingdom • Contact Info

500+ Connections

Spotlight > Review

selfie of Martin Jackson

Monika Aleksova-Stankova

Analytics Lead @ British Gas

Nov 28, 2024, Monika Managed Lloyd directly

Lloyd joined the business at the beginning of September 2024 and ever since has shown a great work ethic, delivery at a very high standard and the ability to work autonomously. 

Immediately he managed to fit well within the team as well as the wider function. He has grasped Adobe Target very quickly and managed to deliver on numerous AB tests since joining. All of the output was thoroughly checked by him and there were no errors.

His approach to work is very professional - always meeting deadlines, working above and beyond in occasions where we have tight timescales.

Lloyds front end dev skills are outstanding and he has received flawing feedback from various stakeholders within the business.

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Summary

I'm a Experimentation Engineer and Front-End Developer who bridges the gap between creative design and technical engineering. With a background in Fine Art and deep expertise in enterprise-level personalisation platforms like Adobe Target and Monetate, I build scalable, high-performance experimentation strategies for the UK's largest digital brands.

Unlike traditional CRO specialists who rely on drag-and-drop tools, I write production-grade code to implement complex personalisation logic. I work alongside dedicated analytics and machine learning teams to translate data models into live, high-impact experiments.

What I bring to the table:

Enterprise Experimentation: I specialise in architecting and deploying A/B and multivariate tests at scale using Adobe Target and Monetate.
Engineering Rigor: I write clean, accessible, and performant code that ensures tests don't compromise site speed or Core Web Vitals.
Creative Precision: My BA (Hons) in Fine Art instills a rigorous standard for quality. I am a perfectionist when it comes to implementation—ensuring every experiment is pixel-perfect. In the world of CRO, even minor visual glitches can erode user trust and impact conversion rates.
Proven Impact: At Next, my technical implementation of experimentation strategies drove a £25 million uplift in revenue.

Current Focus:

At British Gas, I lead the technical side of personalisation, ensuring our digital journey is optimised for millions of users. I am increasingly integrating AI into my workflow to streamline tasks and boost efficiency. Outside of work, I'm deeply interested in LLM projects and agentic systems—building and leveraging autonomous AI agents to solve practical problems.

Entrepreneurial Background:

I founded Monocode, an independent digital engineering consultancy. Through Monocode, I continue to deliver high-performance web solutions for SMEs, focusing on speed, conversion, and brand integrity. This ongoing work keeps my technical skills sharp and ensures I remain grounded in the practical realities of building for the web, outside of the enterprise environment.

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Developer Skills

HTML/CSS

10 Yrs

JavaScript

10 Yrs

React

6 Yrs

TypeScript

4 Yrs

Design Skills

Graphic Design

11 Yrs

Design Tools

11 Yrs

UI Design

7 Yrs

UX Design

5 Yrs

CRO Skills

A/B Testing

7 Yrs

Data Analysis

5 Yrs

Copywriting

5 Yrs

Marketing

5 Yrs

Tech Stack

HTML5

Markup Lang.

CSS3

Stylesheet Lang.

JavaScript

ES5/ES6

TypeScript

Type Tooling

React

UI Library

Redux

State Storage

SASS

CSS Preprocessor

GIT

Version Control

Azure DevOps

Kanban / Agile

Visual Studio

IDE

SAP H5/H6

CMS

WordPress

CMS

AWS Amplify

CI/CD

Next.js + Vercel

React Framework

Cloudinary

Image CDN

Webpack

Module Bundler

JQuery

JS Library

Bootstrap

CSS Framework

Figma

Designing (UI)

Hotjar

Heat Maps (UX)

Monetate

A/B Testing

Adobe Target

Variant Testing

G. Analytics

Trends (UX)

Adobe Analytics

Data Analysis

Fun Facts

Developer Hours

20,160

Recently Played

Expedition 33

Bench Press Record

125KG

Playing Guitar Since

2010