Quantitative Developer

Quantitative Developer
Experience: 4–5 Years
Location: Mumbai
Employment Type: Full-Time | Work from Office
CTC: Up to ₹10 LPA
About GreyOak
GreyOak Capital Intelligence is an early-stage financial-market intelligence startup building quantitative systems for traders, investors and financial institutions.
We are looking for a Quantitative Developer who can take complete end-to-end ownership across research implementation, backtesting, market-data pipelines, production systems and deployment.
Key Responsibilities
Convert quantitative research ideas into reliable production systems.
Build and maintain strategy engines, signal engines and backtesting infrastructure.
Develop multi-stock and multi-timeframe quantitative systems.
Build and maintain historical and real-time market-data pipelines.
Implement, test and validate quantitative strategies.
Conduct walk-forward, out-of-sample and robustness testing.
Identify and prevent look-ahead bias, data leakage, survivorship bias and overfitting.
Optimise Python workloads for speed and scalability.
Build APIs and backend services for quantitative outputs.
Handle testing, debugging, deployment and monitoring.
Work closely with Quant Researchers and take ownership from research logic to production deployment.
Required Skills
4–5 years of experience in Quantitative Development, Algorithmic Trading or Systematic Trading.
Strong Python and SQL.
Strong experience with NumPy, Pandas, Polars and SciPy.
Experience building backtesting, strategy or signal-generation systems.
Strong understanding of financial time-series and market data.
Understanding of equities, derivatives, trading costs, risk and position sizing.
Experience with Git, Linux, APIs and databases.
Ability to independently design, build, test and maintain quantitative systems.
Good to Have
NSE/BSE market experience.
WebSockets and real-time market-data systems.
PostgreSQL / Redis.
Docker and cloud infrastructure.
Numba, Cython or C++.
Experience at a prop firm, broker, fintech or quantitative trading company.
Who We Are Looking For
We need someone comfortable working in a fast-moving startup environment, taking ownership and solving problems independently.
You should be able to handle:
Research → Development → Backtesting → Validation → Production → Monitoring
We are looking for someone who wants to help build GreyOak’s quantitative infrastructure from the ground up and grow with the company.

Work arrangement
No