Hernando G.
Applied Mathematician & Full Stack Developer | Algorithm Design
Hello! . I am Hernando, an Applied Mathematician, Data Analyst, and Full Stack Developer. With 26 years of experience as a university professor of mathematics (specializing in algebra, calculus, and applied statistics at the Universidad del Zulia) and as the founder of the consulting brand Guzmathic, I bridge the gap between deep academic rigor and practical, scalable business solutions. Beyond coding, my core strength lies in algorithmic thinking. As a Venezuelan National Chess Master, I bring a high level of strategic planning, logical optimization, and foresight to every dataset I analyze and every architecture I design. I don't just write scripts; I build robust mathematical models tailored to your specific technical or financial needs. My core technical stack and expertise include: Programming & Full Stack: Python, JavaScript, MATLAB, R. Data & Analytics: Advanced Excel (VBA, macros, dynamic dashboards), SQL Databases, Statistical Inference, and Predictive Modeling. Mathematical Modeling: Optimization algorithms, Bayesian conditional probability, linear/multiple regression, and numerical approximations. Academic & Technical Writing: LaTeX, Overleaf, and the creation of highly technical documentation or competitive syllabi. Recent real-world applications of my work include: Designing and deploying quantitative portfolio backtesting tools in Python using historical corporate fair value data and Sharpe ratios. Building complex, multi-factor Anti-Money Laundering (AML) risk matrices in Microsoft Excel for the financial sector. Developing and structuring advanced algorithmic problem sets for international mathematical Olympiads. Whether you need a full-stack data pipeline, a complex statistical model translated into efficient code, or a flawlessly typeset LaTeX manuscript, I deliver precise and mathematically sound results. Please feel free to review my GitHub portfolio to see my algorithms in action. I look forward to bringing decades of analytical expertise to your next project.
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $114
Billed in all: $7,635$7.6k
$57 in the last 6 months
Across 48 contracts
Earnings, last 30 days
Skill rankings: Top 29% in Statistics
Ranked by MRR among everyone on Upwork with the skill.
- #35Business Mathematics103 freelancers · 🇻🇪 #3Top 34%🇻🇪#3 of 3
- #38Probability Theory104 freelancers · 🇻🇪 #2Top 37%🇻🇪#2 of 2
- #47Differential Calculus123 freelancers · 🇻🇪 #2Top 38%🇻🇪#2 of 4
- #50Integral Calculus119 freelancers · 🇻🇪 #1Top 42%🇻🇪#1 of 2
- #51Mathematical Optimization171 freelancers · 🇻🇪 #1Top 30%🇻🇪#1 of 3
- #53Linear Regression165 freelancers · 🇻🇪 #2Top 32%🇻🇪#2 of 5
- #72Geometry184 freelancers · 🇻🇪 #5Top 39%🇻🇪#5 of 7
- #73Mathematical Modeling224 freelancers · 🇻🇪 #4Top 33%🇻🇪#4 of 6