
Robin Ronne
Verified Expert in Engineering
Data Structures Developer
Cape Town, Western Cape, South Africa
Toptal member since April 14, 2015
Rob is a dedicated problem solver who has been developing financial systems on the .NET platform since 2006. Optimizing relational database queries comes naturally to him. He is a very pragmatic programmer who prefers function over fads in software tool choices and a good communicator who prides himself on his ability to positively affect morale.
Portfolio
Experience
- SQL - 18 years
- ASP.NET - 15 years
- .NET - 15 years
- C# - 15 years
- Data Structures - 13 years
- JavaScript - 8 years
- Amazon Web Services (AWS) - 6 years
- NopCommerce - 3 years
Availability
Preferred Environment
Git, Linux, .NET, SQL, Windows
The most amazing...
...thing I've achieved was bringing an inefficient SQL corporate action/dissemination/data import process time from 40 hours down to 8 by careful query analysis.
Work Experience
Senior Consultant Developer
Confluence
- Migrated an ASP.NET/.NET Framework app to a Ruby on Rails front end with a .NET Core API.
- Rewrote the calculations engine from T-SQL Stored Procedures to C# in order to reduce the DB load.
- Improved performance to allow our largest client to go from 400,000 portfolios to 1.8m in the system.
- Help set up AWS environments AWS(VPC, Route 53, ECR, S3, RDS, Secret Manager).
.NET Web Developer
Content Galaxy Inc.
- Reworked the ASP.NET front end to incorporate a new design from a graphic designer.
- Updated the menu system and fixed various streaming and analytics bugs.
- Updated the build process to use more modern C++ compilers and MFC libraries and prepared the codebase for open source release.
- Configure NopCommerce to automate their deployments.
Senior Front-end Developer
ConsumerAffairs.com
- Enhanced the business intelligence reporting performance and usability.
- Fixed bugs and enhanced performance as part of my day-to-day work.
- Oversaw the roll-out of business reporting to internal clients.
Technical Application Specialist Consultant (Independent)
Statpro
- Delivered a massive cost savings in the space of 8 months for a large client, working with a small team. The client was able to save hundreds of thousands of Euro in annual licensing fees after we wrote the replacement system.
- Collaborated with teammates spread between Frankfurt, Cape Town, Stockholm, London, and Bordeux through constant communication, weekly Google Hangout status meetings, and collaboration via Github and JIRA.
- Improved processing time from 36 hours to 14 hours.
- Surprised the client with swift development turnaround time even during high-pressure portions of project development.
- Conducted extensive query analysis, both T-SQL and PL/SQL.
Senior Developer (Composites Product)
Statpro
- Maintained a commercially successful product used by over 120 asset managers globally.
- Investigated new opportunities in moving the composites product to the cloud, utilizing dynamic web frameworks like Rails and AngularJS for a slick front-end experience.
- Worked remotely, reporting to the Frankfurt office from Cape Town, using JIRA and Lync to coordinate and SVN to collaborate.
- Worked with the R+ team at Statpro, using Ruby on Rails to create a modern portfolio management solution using Highstock charting.
- Provided second line development support to large bank clients remotely via WebEx.
Senior Systems Developer
Statpro/JSE Limited
- Configured a CruiseControl.net server to rein in a sprawling legacy project with over 100 disparate component modules in C#, VB.NET, and C++/MFC.
- Set up an OpenGrok source code search server to assist the team in searching a constantly updated index including the version control history of a ~3.5m line project.
- Migrated source control to SVN from Visual Source Safe 2005, retaining all history.
- Mentored and trained junior developers in the organization.
- Optimized queries for a large and inefficient SQL batch process, reducing run time by around 80%.
Junior Developer
Digiata
- Developed for a completely agile development shop, doing daily stand-ups, fortnightly sprints, internal customer, pair programming, and pool table.
- Conducted full end-to-end testing, TDD, front-end testing, unit tests, FxCop, Smoke tests, and MSI installation/upgrade tests on VM infrastructure.
- Created an internal time tracking/client reporting/invoicing app with another junior developer.
- Learned all about SQL injection and various security concerns.
Experience
Statpro Composites
Content Galaxy
http://www.contentgalaxy.comConsumerAffairs Website
https://www.consumeraffairs.com/Education
Bachelor of Science Degree in Information Technology (Computer Engineering)
University of Cape Town - Cape Town, South Africa
Skills
Libraries/APIs
Windows Forms (WinForms), Node.js, Reactive Extensions, jQuery, Microsoft Foundation Class (MFC) Library, X (formerly Twitter) API, Microsoft Foundation Classes (MFC), Backbone.js, Authorize.net
Tools
Emacs, Microsoft Visual Studio, Microsoft Access, NAnt, Git, Stylus, GitHub, C#.NET WinForms
Languages
Python, JavaScript, SQL, C#, Visual Basic 6 (VB6), C#.NET, VB.NET, Ruby, Java, Janus, Common Lisp (CL), C++, HTML5, CSS, CoffeeScript
Frameworks
.NET, ASP.NET, Bootstrap 3, Sinatra, Ruby on Rails (RoR), .NET Core, NUnit, Django, ASP.NET MVC, AngularJS, Jinja, ASP.NET Web Forms, Ruby on Rails 6
Paradigms
Agile Software Development, Design Patterns, COM+
Platforms
Umbraco, Windows, Linux, Amazon Web Services (AWS), Docker, Android, Azure, NopCommerce
Storage
Microsoft SQL Server, JSON, PostgreSQL, Oracle 11g, MongoDB
Other
Freelancing, Full-stack Development, Fintech, Architecture, Software Architecture, Technical Leadership, Back-end, CI/CD Pipelines, Full-stack, Legacy Software, Algorithms, Data Structures, COM, MSMQ, ComponentOne, R2, DevExpress, IoC
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