Victor Davis
Verified Expert in Engineering
Data Science Developer
Atlanta, GA, United States
Toptal member since October 3, 2017
Victor is an AWS-certified back-end developer with 15 years of experience. He has excellent written and verbal communication skills, both technical and non-technical, and is an intellectually curious, lifelong learner. Victor is a test-driven developer with an obsession for literate programming: he writes beautiful, readable, modular, maintainable, scalable, self-documenting code, along with the CI/CD pipelines to deploy it.
Portfolio
Experience
- Mathematics - 15 years
- SQL - 10 years
- Python - 8 years
- R - 6 years
- Machine Learning - 4 years
- Statistics - 4 years
- Amazon Web Services (AWS) - 4 years
- Natural Language Processing (NLP) - 2 years
Preferred Environment
GitHub, SQL, Linux, Python, Amazon Web Services (AWS), Back-end, Slack, PostgreSQL, Docker, Kubernetes
The most amazing...
...discovery I've ever published is a novel formula describing the type-token relation, which outperforms Heaps' Law.
Work Experience
Machine Learning Engineer
Resultant
- Researched and implemented best practices for building out and scaling a state government record linkage and data exchange system using Airflow, Kubernetes, Google Cloud Platform (GCP), and related tools.
- Augmented the data science staff of a large rental car company, wrangling messy real-world data to produce actionable insights for optimizing fleet operations using Databricks and related tools.
- Maintained industry certifications and engaged in regular weekly learning to continue growing my skills and leaning into new tools.
Data Scientist
Toptal Clients
- Acted as the principal developer of the Data Analytics library for a fintech startup building, validating, and monitoring financial models (Python). [Brussels, BE].
- Served as a Back-end developer and data scientist contributing to a B2B Marketing SaaS product (Python). [London, UK].
- Presented talks at trade conferences and published in trade journals. [New York, US].
- Created data visualization software for pediatric doctors to share diagnosis and treatment information across centers using R. [Santiago, CL].
- Served as a corporate trainer teaching the R, a programming language. [Seattle, US].
- Tested and optimized code for hotel pricing software using R. [Brussels, BE].
Senior Software/Machine Learning Engineer
Evident ID
- Developed a document extraction service using strong grounding in math concepts (graph theory, Bayesian inference, information theory, linear algebra) and machine learning to build and scale an in-house product for machine-assisted data entry.
- Owned the frontline low-level blob-to-structured-data component of a complex data pipeline analyzing documents for an "Insurance Verification as a Service" product.
- Leveraged a complex human-in-the-loop sampling and verification process for end-to-end quality assurance beyond standard unit and integration testing.
IT Consultant
Boaz Media Network Solutions
- Supported operators in inventory control, BOM and router management, material ordering, and logistical optimization.
- Created BI dashboards and KPI scorecards communicating floor metrics to the C-level.
- Wrote reports using Crystal and SSRS for all the departments.
- Generated performance metrics through complex data mining and SQL data wrangling.
- Developed software and analytical tools for miscellaneous clients.
Software Developer
Waffle House
- Created interactive Google Maps using JavaScript, KML, and mathematical functions.
- Implemented mathematical algorithms in COBOL to boost processing speed.
- Generated BI reports based on analytical insights using SQL and R.
- Wrote adapters for getting multi-generation platforms to communicate using principles of strong data design.
- Built interactive Excel and SSRS reports based on business data.
Sales Manager
Vector Marketing
- Sold $60,000 in Cutco Cutlery in customers' homes personally.
- Created $98,000 in new business by managing a seasonal branch office in Columbus, GA.
- Conducted individual and group interviews, ran training classes, and managed a team of sales reps.
Experience
Legomena
https://github.com/victordavis/legomenaFast Character-level N-gram Language Model for Research Purposes
https://github.com/VictorDavis/chlengmoEducation
Bachelor of Science Degree in Mathematics
Southern Polytechnic State University - Marietta, Georgia, USA
Certifications
AWS Certified Developer – Associate
Amazon Web Services
AWS Certified Cloud Practitioner
Amazon Web Services
AWS Certified Machine Learning – Specialty
Amazon Web Services
Skills
Libraries/APIs
Scikit-learn, TensorFlow, Pandas, NumPy, API Development, REST APIs
Tools
GitHub, Git, Microsoft Excel, Apple Aperture, Slack, Apache Airflow, Amazon SageMaker
Languages
Python, R, SQL, JavaScript, PHP, Bash, Bash Script, HTML, CSS, Stored Procedure, Transact-SQL (T-SQL), Java
Paradigms
Unit Testing, Test-driven Development (TDD), Object-oriented Programming (OOP), Object-relational Mapping (ORM), ETL, REST, Management
Frameworks
Flask, RStudio Shiny, JSON Web Tokens (JWT)
Platforms
RStudio, Linux, Jupyter Notebook, Amazon Web Services (AWS), Docker, Amazon EC2, AWS Lambda, LAMP, Kubernetes, Databricks
Storage
MySQL, Microsoft SQL Server, Databases, Redshift, Amazon DynamoDB, SQL Stored Procedures, JSON, PostgreSQL, Google Cloud
Other
Mathematics, Data Queries, Back-end, Data Analysis, Statistics, Artificial Intelligence (AI), Data Science, APIs, Analytics, Data Modeling, Predictive Modeling, Predictive Analytics, Text Analytics, Machine Learning, Natural Language Processing (NLP), Clustering, Data Analytics, Linear Regression, Logistic Regression, Statistical Analysis, Statistical Modeling, Model Validation, Monte Carlo Simulations, Markov Chain Monte Carlo (MCMC) Algorithms, Monte Carlo, Financial Modeling, Sales, 3D Math, Linear Optimization, Data Visualization, Fintech, API Integration, XAMPP Stack, Generative Pre-trained Transformers (GPT), FastAPI, PDF, Tesseract, Graph Theory, Bayesian Statistics, Optical Character Recognition (OCR), Amazon Machine Learning
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