Senior Design Engineer

About the role
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Nymbl engineers customize applications for organizations that have outgrown what they can buy off the shelf. The Senior Design Engineer owns the experience layer of that work end to end: the research and interface designs which make each application feel built for the people who will use it.
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AI can now generate a working screen in minutes. What it can’t do is understand a client’s users, decide what belongs on the screen, or make the result feel intentional. That’s where this role comes in. You’ll bring a clear design point of view and the judgment to refine AI-assisted output into something distinct.

You’ll also build enough of the front end to prototype your ideas and hand them to our engineering team with the intent intact. You will work across two stages. In discovery, you’ll help turn a loose client conversation into a working prototype.

In development, you’ll partner with Solution Architects and the engineering team so what gets designed is what gets built. As the first person in this role, you’ll also help shape where design fits in how we deliver.

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What you will do

• Prototype fast — working prototypes in days, not weeks, to support demos, RFPs, and early discovery.
• Apply a clear design philosophy: the reasoning behind each design decision is grounded in how each user base will actually use the software.
• Differentiate from AI output: elevate AI-generated work so it feels intentional and distinct, not generic, and guide the team how to use AI well.
• Ship production front end in React 19 and TypeScript, with app-gen as your primary workflow rather than an occasional accelerant.
• Build the Application Experience System — a reusable component and pattern library that holds up across enterprise clients, and own it as it grows
• Partner across the delivery chain with Solution Architects, Sales Engineers, developers, and Client Success, so what gets designed is what gets built.
• Pressure-test feasibility early — collaborate on data models so screens reflect real relationships and logic, not optimistic ones.
• Present to clients directly — walk executives and technical stakeholders through prototypes, and hold the room when the questions get hard.
• Raise the bar on the experience layer — mentor designers and developers, run design reviews, and set the standard for accessibility and front-end quality.
• Shape where design fits in our process: advocate for when design enters a project, guide Solution Architects on what to hand off and when, and bring creative thinking beyond standard patterns.

What you will bring

• Six or more years in product design, with production work you can point to and a clear design point of view.
• Three or more years of hands-on front-end experience building with modern tools (such as React and TypeScript), plus the curiosity to keep learning. Deep engineering expertise isn’t required but is a plus.
• React Experience — hooks, composition, state management, and fluency with the current generation, including Server Components, Suspense, and React 19 patterns. TypeScript and modern CSS.
• Daily fluency with app-gen. Claude Code specifically is a plus. What matters is that agent-driven development is already how you build, and that you have experience to back up where it helps and where it does not.
• Design tooling depth — Figma, plus at least one rapid prototyping environment.
• Complex B2B or enterprise application experience — workflow-heavy interfaces, role-based permissions, and real data models.
• Design system or component library ownership, including the governance side of keeping one adopted internally.
• Accessibility as a default, not a retrofit — experience with and knowledge of ADA, WCAG 2.2 AA, and other accessibility requirements.
• Client-facing communication. You can translate a business problem into a screen, and explain the tradeoff to a skeptical executive without retreating into design vocabulary.

Helpful, not required

• Agency or consulting background, with the context-switching that comes with several concurrent clients.
• Presales, RFP, or solution-strategy experience.
• Data modeling literacy beyond reading an ERD.
• Motion and interaction design.