WHY CONTROL EXISTS

Most crypto wallets are built for traders. Control is not.

Control is a private custody platform for digital wealth — built for families and individuals who think in generations, not market cycles. We are building the infrastructure where people entrust their digital legacy: multi-chain assets secured, organized, and accessible for the long term.

This is not another DeFi dashboard or exchange wrapper. This is digital wealth custody — where the bar for trust, reliability, and craftsmanship is measured in decades, not sprints.

WHY NOW

THE ROLE

We are looking for a Staff Frontend Engineer to own the production web application end-to- end. You will be the primary frontend engineer on the team, working closely with the CTO and a full-stack engineer building the backend platform and APIs.

The interface layer of a custody platform is where complexity meets trust. Your users are managing real wealth across multiple blockchains — signing transactions, reviewing portfolios, organizing assets they intend to hold for decades. Every loading state, every confirmation flow, every edge case carries weight. Your work will determine whether Control feels like a place people trust with their financial legacy.

We are rebuilding Control from the ground up. The v1 platform proved the market. Now we are constructing v2 as a greenfield product — new architecture, new stack, new standards. This is the rarest kind of engineering opportunity: a product with real users and real market validation, but with the technical freedom of a blank canvas.

This is a role defined by craft and ownership, not tickets. You will shape the UI/UX, define the frontend architecture, build the design system, and ship every user-facing feature directly to production.

WHAT YOU WILL DO

– Own the React frontend end-to-end: architecture, feature delivery, performance, and polish.

– Collaborate closely with design to translate Figma files into high-quality, production-ready interfaces.

– Own and evolve the design system and shared component library — building reusable foundations that scale.

– Integrate with Dynamic.xyz http://Dynamic.xyz for multi-chain wallet connectivity across EVM, Solana, Bitcoin, Cosmos, and future networks.

– Build transaction signing flows, real-time balances, portfolio dashboards, and asset- management experiences that make complex blockchain operations feel simple and trustworthy.

– Connect the frontend to the Node.js / TypeScript API with real blockchain-backed operations.

– Build and maintain reusable frontend patterns, standards, and implementation conventions for a codebase designed to last.

– Write E2E tests with Playwright and component tests with Jest + React Testing Library.

– Set up frontend observability, error tracking, and analytics.

– Partner with the mobile engineer to keep the web and iOS experiences aligned.

– Leverage AI tools as a daily force multiplier — for code generation, component scaffolding, testing, and problem-solving. At Control, AI is infrastructure, not a novelty.

– Contribute to architectural and product decisions as a senior voice on a small team.

WHAT WE ARE LOOKING FOR

Required

– 10+ years of professional software engineering experience with a track record of technical leadership and frontend ownership.

– 8+ years building production React applications with TypeScript.

– Product vision and user-centric thinking — you don’t wait for a PM to tell you what matters. You develop a point of view on what the product should be, you advocate for the user in every technical decision, and you proactively identify opportunities to improve the experience. You see yourself as a product engineer who happens to work on the frontend, not a frontend engineer who occasionally thinks about the product.

– Strong grasp of crypto UX challenges: transaction states, gas estimation, address validation, network switching, signing flows, and the trust dynamics unique to custody products.

– Deep knowledge of modern frontend state management — Redux Toolkit, React Query / TanStack Query.

– Experience with Vite, TailwindCSS, and modern React patterns (Server Components awareness, concurrent features, composition patterns).

– Strong UI craft and product instinct — you care about detail, trust signals, loading states, edge cases, error recovery, and responsive behavior.

– Comfortable working directly from Figma and contributing product and UX feedback — not just executing designs, but improving them.

– Experience building and maintaining a design system in production. Experience writing automated tests across unit, integration, and E2E layers.

– Comfortable owning features end-to-end and operating autonomously in a small, remote team.

Highly Valued

– Production experience building interfaces for blockchain, cryptocurrency, or fintech applications — wallets, custody platforms, exchanges, DeFi dashboards, or wealth management products. Candidates with direct