Senior Frontend Engineer
Big Oh Notation · Chennai · onsite · Posted 37d ago
Undisclosed7–10 yrsfulltimeSourced from
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About this role
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.
- 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.
- 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.
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.
Disclaimer: This job posting has been aggregated from external source. Role details, content, and availability are subject to change. Applicants are advised to confirm the latest information directly on the company website before applying.
Sourced from naukri
Skills
SDKTechnical Leadershipmarket dataperformance optimizationWebGLBackendI18nArchitectureFinancial ServicesFront End
About Big Oh Notation

Big Oh Notation
IT Services & Consulting
125
employees
2021
5 years old
Noida, Uttar Pradesh
India
₹7.6L PA avg
Avg at Big Oh Notation
About
Innovate | Transparent | Impact
Industries
IT Services & ConsultingRecruitmentSoftware Product
Employee ratings
10 reviews
2.5/ 5
Culture
2.0
Career growth
2.0
Work-life
1.9
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