Design Engineer
Posted 11 Sep 2026
Advertised as “Design Engineer (UX/UI & Front End) - Lead - AI”
BranchFactor Summary
The original posting with the fluff stripped out
- Expected experience
- 5+ yrs
- Management level
- Individual contributor
No salary listed for this role.
Landytech is on a mission to revolutionise the way that investment managers, asset owners and their advisors access asset information. Powered by Sesame, an industry-leading investment reporting platform, we are helping clients in over 15 countries make informed investment decisions and deliver insights faster.
The company is growing rapidly and it’s an exciting time to join, having secured $12M in Series B funding in January 2023. In just four years, it has gone from two co-founders to a team of 80+ staff, with offices in London and Paris. At Landytech, we see diversity as our strength with a team from over 15 countries and 14 languages spoken.
The role
AI has made producing screens easy. It has not made products coherent. We are looking for someone to own the experience of Sesame end to end — the client journey, the interaction logic, the look and feel, and the consistency of all of it — and to build it.
If you are an engineer who has always had a view on how the product should look and behave, this is a role where that judgement is part of the remit rather than a side interest.
We have posted this role under two titles — Design Engineer and Product Experience Designer — to reach both backgrounds. Same role, same team. Apply once, to whichever fits you better.
How we work
We have rebuilt our product process around AI rather than bolting it on:
• AI is used heavily at every stage of both design and engineering, not just at the production end
• Our design system lives in code, used by engineers and AI tooling alike
• Tooling changes every few months and we expect it to
You will have real scope to shape how we work, and to help build the parts that do not exist yet.
What you will shape
How much of this you lead outright will depend on your experience and on how it fits with the team already in place. There is room to take on more over time.
- The front-end experience layer. You will build the interfaces that matter most, particularly the dense and difficult ones, and help set the patterns others follow
- The design system. Developed in code with the rest of the front-end team, with a leading voice in what belongs in the system
- Look, feel and consistency. The product should feel like one thing, and you will help define what that one thing is and uphold it in review and in tooling
- The client journey. You will be in front of investment professionals, family offices and their advisors, and trusted to act on what you hear
- Craft in dense financial interfaces. Tables legible at scale, numbers at the right precision, drill-downs that survive a messy real portfolio under load