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Senior Frontend Engineer

BIG OH TECH · Chennai, India

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Senior Frontend / Full-Stack Engineer Location: Sholinganallur, Chennai – In-person Experience: 7–10 Years Employment: Full-Time (FTE) Joining: ASAP About the Role We are looking for a Senior Frontend Engineer with strong React and TypeScript expertise and experience in financial services/trading products . You will work closely with the CEO across our real-time trading terminal, charting platform, SDK, and core product roadmap . This is a hands-on role requiring strong ownership, technical decision-making, and the ability to deliver with minimal supervision. Key Responsibilities

  • Build and ship features for a real-time, data-intensive trading platform .
  • Develop high-performance React + TypeScript applications.
  • Work with WebSockets, REST APIs, and real-time market data .
  • Contribute to charting, visualization, and SDK development .
  • Work across the stack when required, including Go backend .
  • Optimize frontend performance, scalability, and reliability .
  • Own features end-to-end from requirement to production.
  • Mentor engineers and contribute to technical leadership.
  • Work closely with the CEO and product team to unblock and accelerate the roadmap . Must-Have Skills
  • 7–10 years of frontend engineering experience.
  • Strong React + TypeScript expertise.
  • Experience with large, complex, stateful applications .
  • Strong knowledge of frontend architecture and performance optimization .
  • Experience with WebSockets and real-time/data-heavy applications .
  • Good understanding of REST APIs and backend systems.
  • Experience in FinTech, trading, financial services, or market-data products .
  • High ownership, autonomy, and strong problem-solving skills. Good to Have
  • Canvas / D3 / WebGL experience.
  • Trading terminal or charting platform experience.
  • SDK / developer-facing library development.
  • Go experience.
  • Monorepo/Nx and i18n experience.
  • IIT/NIT/IIM background – nice to have, not mandatory . What We’re Looking For A senior, hands-on engineer who can hit the ground running, make strong technical decisions, understand trading workflows, and independently drive complex initiatives from idea to production.