Freelance Senior Software Engineer
2019 - PRESENTToptal Clients- Built a Python-based application that scrapes legal websites to gather court case updates and notifies followers of changes in dockets and other items. This application also gathers court filings for followers.
- Enhanced a tax calculation and financial analysis SaaS project by adding user registration, payment, and calculation features.
- Revitalized and transformed an old, legacy Node.js application (in the data/finance domain) into a well-tested Python-based application.
- Performed security-focused application assessments and code reviews for various SaaS projects.
Technologies: Python, TypeScript, Azure, Cloud, Django, FastAPI, React NativeDirector, Software Development
2006 - PRESENTHorizon Investments- Created and contributed to open-source several open-source projects, primarily in the financial services domain.
- Developed several full-stack web systems using a variety of tools and technologies. The nature of these systems is confidential.
- Adapted software processes and communication protocols to changing requirements and growing teams.
- Created a productive team environment for building durable and maintainable code.
Technologies: Julia, ClojureScript, Python
Calvin DeBoer
Full-stack Developer in Charlotte, NC, United States
Member since August 10, 2017
Calvin is a talented full-stack engineer with more than a decade of experience building web applications with open-source tools. His strong technical skills and business experience give him the ability to communicate to and create alignment between developers, product owners, stakeholders, and executives.
Calvin is now available for hire
Portfolio
- Toptal ClientsPython, TypeScript, Azure, Cloud, Django, FastAPI, React Native
- Horizon InvestmentsJulia, ClojureScript, Python
Experience
- Data Modeling 15 years
- Python 15 years
- Django 13 years
- PostgreSQL 12 years
- Team Leadership 10 years
- Architecture 8 years
- Project Leadership 8 years
- Clojure 4 years
Availability
Part-time
Preferred Environment
Slack, GitLab, VS Code, Bash, Linux, MacOS
The most amazing...
...thing I've coded is an algorithm for fuzzy matching poorly constructed financial information to a highly structured schema.
Employment
Experience
- Iteround (Open Source Python Package) (Development)https://github.com/cgdeboer/iteround
Iteround is an organic (standard library) sum-safe rounding library for Python. It solves a typical problem where elements are in an array-like structure that need to be rounded while maintaining the rounded some of the original array. This is typical in representing percentages.
Skills
Languages
Python, Julia, Sass, Clojure, Bash, TypeScript, JavaScript, Ruby, Falcon, SQLFrameworks
Django REST Framework, Django, ClojureScript, Re-frame, React NativeOther
Data Modeling, Project Leadership, Team Leadership, Architecture, Project Estimation, FastAPI, AWS, Cloud, Financial Services, Writing & Editing, Product OwnershipLibraries/APIs
NumPy, SciPyTools
Reagent, Ansible, VS Code, GitLab, Slack, MATLABStorage
PostgreSQLIndustry Expertise
FintechParadigms
Functional Programming, RESTPlatforms
Mailgun, Azure, Linux, MacOS
Education
- Bachelor's degree in Finance and Economics2004 - 2007University of North Carolina at Charlotte - Charlotte, NC, USA
