Sebastien Powell
Product Design & Engineering
About
I'm a product designer and engineer based in sunny Norfolk, England. For the past decade, I have taken products from 0 – 1, as a co-founder (GetAgent.co.uk, Making Jam, LeadPro – exited in 2021), consultant or partner.
My expertise spans application design and development, websites, design systems, and marketing collateral. Depending on the project, I can take on the entire process – from design to implementation – or focus on specific areas while collaborating with existing teams.
Work
2025 – Present
Healf
Senior design engineer
Recently named the UK's second fastest-growing company by The Sunday Times. Initially focused on replatforming from Shopify to a headless Next.js setup, establishing key engineering and design practices, tooling, and workflows to bridge design and development. Currently developing the company’s design system to be used across website, Healf Zone, subscription portal, and mobile app.
2024
Voltage Park
Contract
Designed and built a bespoke customer support portal via integration with a third-party GraphQL API.
2024
OpenFi
Contract
Designed and developed the UX, along with a design system library and mockups for key components of the company's MVP.
2024
NU
Head of Frontend
Collaborated with backend, product, and design teams to design and develop an MVP for an AI-powered, multi-omics platform for healthcare practitioners.
2022 – Present
Albert & Arthur
Co-founder
Started this company with my wife, designing and building the brand and website. Explored headless eCommerce solutions (Medusa, Shopify, CommerceLayer, Swell) before creating a custom solution.
2021 – 2023
ITD Global
Lead product engineer
Designed and developed a customer-facing booking portal with a Nest.js backend, integrating multiple courier APIs through microservices. Delivered the final product as both a user interface and an API.
2018 – 2021
Airfinity
Founding product engineer
Designed and developed the original website and data intelligence product, which gained significant traction during COVID. Worked with data science and backend teams to build a flexible API for delivering custom, client-tailored views.
2017 – 2019
Lead Pro
Co-founder & interim CTO
Proval.co.uk was an online valuation platform spun out of GetAgent.co.uk. Merged with Lead.pro in 2019 . I designed a new, integrated product suite and unified diverse tech stacks (Koa.js and Rails) into a cohesive architecture using React, Nest.js, micro-services, and embeddable widgets. Acquired by Nurtur Group in 2021.
2014 – 2021
Making Jam
Co-founder
Bootstrapped the business to host two major annual conferences: one in London with 700+ attendees and another in Barcelona with 200+. Developed design and branding, along with event websites and tools, including a custom ticketing and event management system.
2014 – 2018
Getagent.co.uk
Co-founder
Led the design and development of the original brand and consumer-facing product. Since October 2014, GetAgent.co.uk has helped more than 800,000 homeowners and signed up more than 7000 estate agents across the UK.
Writing
Connect
Open to ad-hoc projects, fractional or full-time contracts.