Senior Full stack Engineer (L3) - Trading

About this role

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Skills you'll use

What you'll do

• Own the architecture of critical client trade flows — quote and pricing surfaces, trade initiation, and status and settlement tracking — across GUI, API and conversational AI.
• Design frontend state and data-fetching patterns, exception handling and retries.
• Drive frontend performance and reliability — rendering efficiency under frequent updates, load times, and stability on the flows that carry volume.
• Build and extend the APIs and data models your surfaces depend on, and ship features end-to-end rather than stopping at the boundary.
• Instrument the client experience — Error rates, flow completion, and latency — problems are visible before clients report them.
• Partner closely with Design and Product to shape flows, and with backend engineers to shape API contracts.
• Drive work to closure with Product, Design and Operations. You are accountable for adoption, not just delivery.
• Act as a product engineer — scope a problem statement, understand its product impact, and take the hard prioritisation calls.
• Raise the bar through code review and design feedback, and mentor L1/L2 engineers on the team.
• Build a healthy engineering-excellence and tech-debt backlog — surface the right items, work with the EM on a resolution plan, and drive them to closure.

Who can apply

• Raise the bar through code review and design feedback, and mentor L1/L2 engineers on the team.
• Build a healthy engineering-excellence and tech-debt backlog — surface the right items, work with the EM on a resolution plan, and drive them to closure.
• Participate in on-call, respond to incidents with urgency, and turn post-mortems into durable fixes.
• 5–7 years of experience building production web applications, with the majority of that depth on the frontend.
• A trading background — you've worked at a trading company, exchange, or brokerage and have built client-facing systems on a live trade or order path (e.g. CoinDCX, Groww, CoinSwitch Kuber, or similar).
• Deep expertise in TypeScript and React , and strong command of Redux or equivalent state management on non-trivial applications.
• Hands-on experience with server-side rendering and code splitting , and a clear sense of when each is worth the cost.
• Strong grasp of frontend architecture — component design, data fetching, error handling, and data synchronisation between client and server.

Perks & benefits

About OpenFX

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