Quantitative Financial Modeling & FinTech Systems Engineer

• Quantitative Financial Modeling & Corporate Valuation

Expertise in explicit 5-year unlevered FCFF modeling, dynamic WACC derivation via CAPM, perpetual terminal valuation using the Gordon Growth model, and enterprise-to-equity net debt reconciliation. Built numerical expectation inversion models (Reverse DCF), 2D 5×5 margin-of-safety stress matrices, and continuous valuation sensitivity curves.

• Financial Statement Analysis & Earnings Quality

Implementation of 3-stage DuPont ROE decomposition to isolate whether equity returns stem from genuine operating margins, asset turnover velocity, or balance-sheet financial leverage. Working capital analysis, cash conversion cycles, and solvency/coverage ratio diagnostics.

• Software Engineering & FinTech Architecture

Design and development of modular FinTech systems enforcing strict Separation of Concerns (SoC) between an isolated computational engine (fin_engine) and data delivery layers. Built asynchronous REST API endpoints using FastAPI, Uvicorn, and Pydantic v2 schemas for strict contract validation. Features a global currency mapping engine supporting USD ($), INR (₹), EUR (€), GBP (£), JPY (¥), CAD, AUD, CHF, and HKD.

• Resilient Ingestion & Pluggable Data Pipelines

Engineered financial data pipelines with in-memory TTL caching, token-bucket request throttling, and exponential backoff error handling. Architecture is modular to support live market feeds, local CSV financial filings, or client database exports.

• Numerical Optimization & Applied Mathematics

Applied SciPy's numerical root solver (scipy.optimize.brentq) for expectation inversion, implementing parameter bounding, edge-case clamping, and convergence validation under extreme inputs.

• Test-Driven Development (TDD) & Quality Assurance

Designed and maintained an automated test suite with 26 passing unit and integration tests in pytest, verifying accounting identities, capital structure constraints, and mathematical determinism prior to presentation serving.

• Containerization, DevOps & Cloud Delivery

Packaged full-stack Python services into optimized Docker containers for cross-platform execution. Managed version-controlled Git/GitHub workflows and deployed production cloud applications on Render infrastructure.