I am a Senior Front-End Engineer Consultant, expert in Next.js / React.js, React Native, Firebase, working independently in the UK. I am passionate about creating innovative experiences and leveraging cutting-edge technologies. My career has involved designing scalable web and mobile applications, leading projects, and implementing security solutions to improve operational excellence. I have a strong background in both front-end and full-stack development and have held senior roles in application security and engineering. I thrive in agile environments and enjoy blending engineering with UX/UI best practices to build secure and pixel-perfect products.…

Florian Jousselin

I am a Senior Front-End Engineer Consultant, expert in Next.js / React.js, React Native, Firebase, working independently in the UK. I am passionate about creating innovative experiences and leveraging cutting-edge technologies. My career has involved designing scalable web and mobile applications, leading projects, and implementing security solutions to improve operational excellence. I have a strong background in both front-end and full-stack development and have held senior roles in application security and engineering. I thrive in agile environments and enjoy blending engineering with UX/UI best practices to build secure and pixel-perfect products.…

Available to hire

I am a Senior Front-End Engineer Consultant, expert in Next.js / React.js, React Native, Firebase, working independently in the UK. I am passionate about creating innovative experiences and leveraging cutting-edge technologies. My career has involved designing scalable web and mobile applications, leading projects, and implementing security solutions to improve operational excellence.

I have a strong background in both front-end and full-stack development and have held senior roles in application security and engineering. I thrive in agile environments and enjoy blending engineering with UX/UI best practices to build secure and pixel-perfect products.

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Language

French
Fluent
English
Advanced

Work Experience

Senior Application Security Engineer at Beauty Pie Ltd
August 1, 2025 - September 4, 2025
Created and led a new internal cybersecurity team. Implemented awareness trainings, security monitoring, third party security audits, incident logs, security on-calls, and documentation for developers. Developed and implemented security solutions and tools. Performed and organized internal and external penetration tests on company assets. Reduced attack detection time from 15 days to less than an hour and established global confidence in the company’s cybersecurity.
Front-end Engineer Consultant at Scapin Ltd
August 1, 2025 - Present
Build scalable web and mobile apps using React, Next.js, React Native, Firebase, and other technologies. Deliver secure, pixel-perfect products by blending engineering and UX/UI best practices. Lead projects from concept to production across different industries.
Senior Full Stack Engineer at Beauty Pie Ltd
November 1, 2022 - September 4, 2025
Worked as part of the customer experience team. Redesigned the website and API to improve customer experience and conversion rates. Contributed to the company raising £100M in Series B funding.
Senior Full Stack Engineer at Secret Spa Ltd
March 1, 2021 - September 4, 2025
Redesigned the Secret Spa platform (mobile and web apps) with another developer. Used an agile approach, test-driven development, and a customer-focused approach. Managed freelancers, led meetings, and owned parts of the projects. Resulted in significant platform growth and over 50K customers.
Full Stack Engineer Consultant at Flinstar, Marseille, France
June 1, 2019 - September 4, 2025
Created numerous mobile application projects for multiple clients. Focused on code quality, details, and client happiness. Clients were delighted, enabling expansion of their businesses and raising funds.

Education

Master's degree in computer science at Epitech, Paris, France
October 1, 2012 - December 1, 2017
Validation certificate at Brockport College, Brockport NY, U.S.A.
February 1, 2016 - May 1, 2016

Qualifications

OSEP (OffSec Experienced Penetration Tester)
May 1, 2023 - September 4, 2025
OSCP (OffSec Certified Professional)
January 1, 2023 - September 4, 2025

Industry Experience

Software & Internet, Financial Services, Professional Services, Consumer Goods, Media & Entertainment