Development consultant/contractor
2018 - PRESENTPump & Abrasian- Designed and envisioned a new product to replace their current spreadsheet system to visualize and adjust various calculations, and generate appropriate quotes.
- Used Lunacy (Window's Sketch clone) to design the pages and create wireframes.
- Built the entire framework from scratch in Node, React, MongoDB, and serviced through Heroku.
Technologies: React, Node.js, MongoDB, Heroku, LunacyCo-founder and lead developer
2017 - PRESENTin-house- Co-founded in-house, a startup based in New York that will be launching at the end of 2018.
- Took over an old and defunct, but relevant project, and repurposed it so that it aligns with modern standards. Introduced continuous integration with Azure, and replaced ASP.NET MVC by React.
- Designed the technical road map up to release.
- Prototyped new features with the design team in Node.js and React.
Technologies: React, HTML, CSS, C#, Azure, TFS, SQL ServerSenior Web Developer
2017 - 201822seven- Led the web development for 22seven - a personal budgeting and finance insights application that aggregates a user's personal finance. The company integrates with more than 100 banks and financial institutions and has a user base of more than 150k.
- Drastically improved the aggregate service, where only the latest information is routinely received from the server (like a user's latest bank transactions) and merged with the client side data.
- Headed the prototyping of all the new features that will eventually be used by all the platforms - Android, iOS, and web.
- Pioneered the migration from Angular to React. It iwas done in an iterative manner, where Angular components are replaced by React components, one by one.
Technologies: Angular, React, JavaScript, HTML, CSS, C#, MongoDBSenior Software Developer
2016 - 2017Blazingchilli / Zing- Contributed to various back-end solutions that provided content to the apps of South Africa's largest insurance companies - Liberty and Old Mutual.
- Introduced, developed, and maintained a centralized web console that manages the company’s internal systems, which is used by the support personnel, the developers, and the managers.
Technologies: React, C#, ASP.NET, SQL Server, JavaScript, HTML, CSSMES Developer
2014 - 2016Omnia Fertilizer- Created a factory standby and log sheet capturing application that was used by thousands of standby workers and managers of the chemical plants.
- Developed a dynamic charting web application to represent millions of data points in the plants.
- Created a near hit web application that replaced the paper system where 100+ incidents needed to be processed by hand per week.
- Developed an automated tool that moved 20+ years of confidential Labware data from Lotus Notes, MS Access, and Excel to a centralized SQL Server database integrated to SharePoint.
Technologies: C#, Python, ASP.NET, SQL Server, PI system, JavaScript, HTML, CSS, Visual Basic
CJ Visser
C# Developer in Cape Town, South Africa
Member since January 11, 2018
CJ is a talented full-stack developer who revels in a challenging environment. From the financial sector to the entertainment industry, he has created products that went into the hands of millions of satisfied customers. CJ knows how to cultivate a positive work atmosphere, design systems, and tackle problems. Most importantly - he gets things done.
CJ is now available for hire
Portfolio
- Pump & AbrasianReact, Node.js, MongoDB, Heroku, Lunacy
- in-houseReact, HTML, CSS, C#, Azure, TFS, SQL Server
- 22sevenAngular, React, JavaScript, HTML, CSS, C#, MongoDB
Experience
- C#, 6 years
- Python, 5 years
- JavaScript, 5 years
- Node.js, 4 years
- React, 4 years
- Functional Programming, 4 years
- Clojure, 3 years
- React Native, 2 years
Availability
Part-time
Preferred Environment
Windows, GIT, vscode
The most amazing...
...project I developed was a web application where users can build their own graphs based on millions of real time data points gathered across a chemical plant.
Employment
Experience
- Vehicle Detection (Development)https://github.com/vssrcj/vehicle-detection
This was an exciting project as part of Udacity's Self Driving Car Nanodegree program.
The program analyzes a video to detect where other vehicles appear.
This functionality is foundational for self-driving cars. It involved sophisticated image processing and machine learning. - Old Mutual Wine Show App (Development)
Developed the mobile content for South Africa's premier wine show.
It was an extremely confidential process involving wine experts. - Way2b1 Mobile (Development)
Developed the React Native Android app for Way2b1 (called Greenlight) as a freelancer through the services of Udacity Blitz.
Skills
Languages
C#, HTML, CSS, JavaScript, Visual Basic, Java, C++, Python, Elixir, Elm, ClojureFrameworks
Express.js, Redux, ASP.NET, React Native, Flask, Machine Learning, AngularLibraries/APIs
React, Node.js, Vue.jsParadigms
Functional Programming, Agile Software Development, Test-driven Development (TDD)Platforms
Windows, Linux, MacOSStorage
MongoDB, SQL Server 2012, PostgreSQL, SQLiteOther
Full-stack, Product Management
Education
- Nanodegree in Self Driving Car2017 - 2018Udacity - Remote
- Bachelor's degree in Computer Science and Mathematics2012 - 2014North West University - Potchefstroom, South Africa
- Freshman program in Science2011 - 2012McGill University - Montreal, Canada
