FinTech · ML & AI Specialist · Accounting · Blockchain

Crispen
Chachengwa.

FinTech, Machine Learning and AI Specialist with deep accounting expertise and blockchain knowledge. Building robust, production-grade systems across financial workflows, quantitative risk models, agentic pipelines, and decentralized protocols.

Crispen Chachengwa portrait
FINTECH ENGINEERING • MACHINE LEARNING & AGENTIC AI • ACCOUNTING EXPERTISE • BLOCKCHAIN & DIGITAL ASSETS • QUANTITATIVE FINANCE

ABOUT

Accounting rigor.
Advanced AI architecture.

I am a FinTech, ML and AI specialist pursuing an M.S. in Financial Technology at the University of Central Florida, holding a B.Sc. (Hons) in Applied Accounting from Oxford Brookes University. My dual technical and financial grounding enables me to view financial architecture holistically—from balance sheet internal controls, ERP ledgers, and audit trails to deep learning models, agentic workflows, and distributed ledger mechanics.

My work focuses on architecting end-to-end data pipelines, developing machine learning solutions with strict guardrails, extracting actionable intelligence from regulatory filings via LLMs, and securing smart contract protocols.

Beyond algorithmic modeling, I bring real-world entrepreneurial experience as Co-Founder of Charles Beatina PBC. Managing budgets, supplier relations, cash flow, and business operations ensures my technical systems address practical financial realities, not just idealized benchmarks.

Python · PyTorch · Scikit-Learn · LLMs & Ollama · LightGBM · Graph Neural Networks · SQL · Solidity · Full-Stack Development

SELECTED WORK

Projects & Systems

01 · FIXED INCOME · QUANTITATIVE TOOLS

BondLab

An interactive quantitative fixed-income laboratory designed for bond valuation, yield curve modeling, interest rate sensitivity, and duration/convexity risk analysis.

View Repository ↗
02 · AGENTIC AI · NLP · REGULATORY DATA

LLM Document Analysis Pipeline

End-to-end Python pipeline extracting corporate product releases and material events from SEC Form 8-K filings via EDGAR API and Ollama LLMs into structured CSV datasets.

View Repository ↗
03 · AGENTIC WORKFLOWS · FINANCIAL COMPLIANCE

TaxDesk AI

An AI-powered tax workflow orchestration platform combining automated tax question answering with rule-based task routing, document handling, and deterministic financial guardrails.

View Showcase ↗
04 · QUANTITATIVE FINANCE · LIVE

Hedge Master

Applied quantitative risk management platform for evaluating downside exposure, scenario stress-testing, and dynamic hedging simulations paired with automated reporting.

Visit Platform ↗
05 · MACHINE LEARNING · LIVE

PMRC Analytics

Probabilistic market analysis engine using LightGBM and engineered distribution features to classify equity return environments across 5 discrete regimes with explicit uncertainty estimation.

Visit PMRC ↗
06 · ACCOUNTING AI · FORENSICS

AuditShield AI

Applied ledger anomaly detection platform identifying accounting errors and fraudulent journal-entry patterns by fusing domain accounting rules with supervised and relational learning models.

Visit AuditShield ↗
07 · MULTIMODAL ML · FINANCIAL RISK

Corporate Distress Predictor

Multimodal risk-prediction framework fusing structured financial metrics with narrative MD&A disclosures to assess corporate insolvency and forward distress probabilities.

View Research Project ↗
08 · BLOCKCHAIN · DEEP LEARNING

Bitcoin Chainlet Forecasting

Graph and MLP deep learning architecture leveraging Bitcoin on-chain transaction network chainlets as structural signals for dynamic price and volume forecasting.

Explore Research Below ↓
09 · OPEN DATA · KAGGLE BENCHMARK

Universal ERP Accounting Risk Dataset

Synthetic ERP accounting dataset benchmark designed for training fraud detection, reconciliation gap analysis, authorization bypass, and audit trail anomaly models.

Explore Dataset ↗

CAPABILITIES

Multidisciplinary execution.

DOMAIN EXPERTISE

FinTech & Accounting

Accounting controls, ledger analytics, variance & reconciliation analysis, corporate budgeting, financial modeling, portfolio risk analysis, fixed-income modeling, regulatory filings (SEC EDGAR).

AI & MACHINE LEARNING

ML, AI & Agentic Systems

PyTorch, TensorFlow, Scikit-Learn, LightGBM, XGBoost, Graph Neural Networks (GNNs), LLM pipelines (Ollama), prompt chaining, deterministic agentic routing, guardrail design.

DECENTRALIZED & WEB TECH

Blockchain & Development

Solidity, Ethereum smart contract security & opcode analysis, on-chain transaction graph analytics, Python, SQL, R / RStudio, HTML5, JavaScript, modern full-stack web integration.

ENTREPRENEURSHIP

Operational grounding.

CO-FOUNDER · 2022–2025

Charles Beatina PBC

Co-founded and managed business and financial operations for a processing and distribution enterprise. Directed capital expenditure, monthly budgeting, vendor negotiations, procurement cycles, disbursements, and cash runway management.

This operational tenure guarantees that every model, algorithm, and software system I construct is anchored in practical commercial utility and cash-flow discipline.

RESEARCH

Academic & empirical research.

UNDER REVIEW · APPLIED AI & ACCOUNTING

AI Architectures for ERP Accounting Fraud and Error Detection

Comparative empirical research on structured, temporal, and relational learning architectures designed for automated general ledger validation and anomaly detection.

Methodologies: XGBoost · Random Forest · LSTM Autoencoder · GraphSAGE · Edge-aware GraphSAGE
UNDER REVIEW · BLOCKCHAIN SECURITY

UnifiedBench: A Unified Benchmark for Multi-Class Smart Contract Vulnerability Detection

Comprehensive benchmarking framework combining opcode extraction, static analysis, and graph neural network representations across Ethereum smart contract vulnerability datasets.

Focus Areas: Ethereum · EVM Opcode Analysis · GNNs · Smart Contract Security

ACADEMIC REFERENCES

References

UNIVERSITY OF CENTRAL FLORIDA

Mesut Ozdag, Ph.D.

Assistant Professor of Computer Science, FinTech and Digital Forensics.

mst.ozdag@gmail.com ↗
NATIONAL UNIVERSITY OF SCIENCE AND TECHNOLOGY · ZIMBABWE

Lungisani Mpofu

Lecturer, Department of Banking and Finance / Actuarial Science, NUST.

lungisani.mpofu@nust.ac.zw ↗

CONNECT

Start a conversation.

Available for quantitative FinTech roles, machine learning engineering, and institutional research collaborations.