Jacobus Marthinus Van Schalkwyk
Senior Software Developer
Pretoria,GP
Work Preference
Summary
Detail-oriented and organized software development professional with a proven track record in software design, development, and integration. Thrives in fast-paced environments while meeting tight deadlines, bringing advanced knowledge of in-demand programming languages and a strong analytical mindset to complex problem-solving. Experienced in collaborating with cross-cultural, global teams and dedicated to producing impeccable code that aligns technical solutions with business objectives. Eager to leverage diverse skills and innovative thinking in an entry-level Senior Software Developer position to contribute to team success and drive organizational growth.
Overview
22
22
years of professional experience
1
1
Deploma
Work History
Senior (SQL) Software Developer Level 1
Dervico
12.2014 - 06.2025
- Software (SQL) Developer Level 2
- Senior (SQL) Software Developer Level 1 (as of 01 June 2019)
- Worked in the Banking Department
- Do the database portion of to add new purchase methods for deposits.
- Create the activation scripts to enable the method on a casino.
- Create or alter tables, procedures or views as needed for deposits and withdrawals.
- Worked with Bolt and Javelin replication.
- Optimize queries in procedures for best performance.
- SQL Code reviews.
- Help debug live SQL issues.
- Technologies: Microsoft SQL Server, SVN, GIT, Visual Studio, Visual Code
Senior Software Developer (In charge of Finance) – Development
Onelaw IT (Same Company group)
01.2011 - 10.2014
- Make sure the team gets work done on time
- Guide team members where needed
- Push team members to grow
- Resolve conflict between team members
- Check and authorise any system change that team members make
- See that the workload is spread evenly between team members
- Give feedback to Department Head on team’s progress
- With new candidates for a post in my team I go through the CV’s and choose an appropriate group of people based on skills on CV. I am one of the Interviewers with the Department head and HR representative to pick the best person for the job
- Sit in/run a daily meeting to ensure that all systems are up and running and any problems are already being looked at
- Technologies: Microsoft SQL Server 2008 R2, Microsoft Visual Studio 2010/08 (C#.NET), SSRS, as of 2014 SQL 2012 and VS 2010/12
Senior Software Developer (Coordinator) – Service Desk
Onesys IT
10.2009 - 12.2010
- Make sure team gets work done on time
- Guide team members where needed
- Push team members to grow
- Resolve conflict between team members
- Check and authorise any system changes that team members make
- See that the work load is spread evenly between team members
- Give feedback to Department Head on teams progress
- With new candidates for a post in my team I go through the CV’s and choose an appropriate group of people based on skills on CV. I am one of the Interviewers with the Department head and HR representative to pick the best person for the job
- Sit in/run a daily meeting to ensure that all systems are up and running and any problems are already being looked at
- Technologies: Microsoft SQL Server 2008, Microsoft Visual Studio 2010/08 (VB.NET + C#.NET), SSRS
Developer – Service Desk
Onesys IT
10.2008 - 10.2009
- Fix medium to big system problems
- Extract complicated data requests from one or more tables from the database to the client’s needs
- Make system changes to existing pages and tools to client's needs
- Create new tools
- Help Junior Developers
- Technologies: Microsoft SQL Server 2008, Microsoft Visual Studio 2008 (VB.NET + C#.NET), SSRS
Junior Developer – Service Desk
Onesys IT
10.2007 - 10.2008
- Fix system problems
- Extract specific lists from one or more tables from the database to the client’s needs
- Help Tier 3 (Programmers) with system changes and documentation creation/changes on the system
- Technologies: Microsoft SQL Server 2005, Microsoft Visual Studio 2005 (VB.NET + C#.NET)
Programmer (Freelance)
Private
08.2007 - 08.2007
- Create the program to control lights and beams of race track equipment
- Create a program to:
- - Control the lights
- - Communicate with the beams
- - Save and load results in/from a text file (+ auto save)
- Technologies: Microsoft Visual Studio 2005 (C#.NET)
Programmer (Freelance)
Plumbago Technologies
12.2006 - 06.2007
- Create Web Site
- Create Database
- Design Website
- Code Pages
- Program an individual Windows Application
- Technologies: Microsoft Visual Studio 2005 (VB.NET + C#.NET), Microsoft SQL Server 2005
- Reason for leaving: Contract end-date reached
Porter
Coin / Nido at Pretoria East Hospital
12.2004 - 06.2005
- General Porter Duties
- Assisted patients in moving out of beds, wheelchairs, stretchers, or medical transport vans.
- Assisted with lifting and handling patients using appropriate patient safety equipment such as lift swings, stand-up lifts and overhead lifts.
- Reason for leaving: Study at CTI / Temporary work
Express Teller
FNB
01.2003 - 09.2004
- Deposits for clients
- Withdrawals for clients
- Statements for clients
- Completed highly accurate, high-volume money counts via both manual and machine-driven approaches.
- Processed customer transactions promptly, minimizing wait times.
- Answered customer inquiries regarding account balances, transaction history, services charges, and interest rates.
- Reason for leaving: To further my studies
Education
Certificate of Technical Studies - IT
Online Courses
Pretoria, South Africa01-2025
Information Systems Engineering - Computer Information Systems
CTI
Pretoria, South Africa04-2007
High School Diploma -
Hoërskool Garsfontein
Pretoria, South Africa12-2002
Skills
- Data structures and algorithms
- Agile development methodologies
- Git proficiency
- SQL expert
- Software development
- Azure development
- Problem-solving
- Software debugging
- Microsoft SQL Server
- Powershell
- SVN
- Programming
Certification
- Certified - Grade 12 Certified - Information Systems
- Engineering Certified - Microsoft Azure Fundamentals
Languages
English
Afrikaans
Work Availability
monday
tuesday
wednesday
thursday
friday
saturday
sunday
morning
afternoon
evening
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Hobbies/Interests
Bonsai - Mindfulness
Drawing - Mindfullness
Reading - Family activity
Videogames/ online gaming - Family & Friends activity
Board games/Movie night - Family activity
Table tennis - Team activity
Squash - Team activity
Hiking - Couple and Family activity
Timeline
Senior (SQL) Software Developer Level 1
Dervico
12.2014 - 06.2025
Senior Software Developer (In charge of Finance) – Development
Onelaw IT (Same Company group)
01.2011 - 10.2014
Senior Software Developer (Coordinator) – Service Desk
Onesys IT
10.2009 - 12.2010
Developer – Service Desk
Onesys IT
10.2008 - 10.2009
Junior Developer – Service Desk
Onesys IT
10.2007 - 10.2008
Programmer (Freelance)
Private
08.2007 - 08.2007
Programmer (Freelance)
Plumbago Technologies
12.2006 - 06.2007
Porter
Coin / Nido at Pretoria East Hospital
12.2004 - 06.2005
Express Teller
FNB
01.2003 - 09.2004
Certificate of Technical Studies - IT
Online Courses
Information Systems Engineering - Computer Information Systems
CTI
High School Diploma -
Hoërskool Garsfontein