Theodore NelsonDownload CV

Java & Full-Stack Developer
Pretoria, South Africa

TheodoreNelson.

I turn everyday business problems
into software that works.

Explore my work

Built for the real world

Good software makes
the complex feel simple.

I build business applications with Java, Spring Boot, and React. My background in IT support keeps the people using them at the centre of my work.

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Selected work

Built around real needs.

Four applications. Real problems solved.
The same care for making software useful.

TradeFlow SA application screenshot
01TradeFlow SA
ChurchFlow application screenshot
02ChurchFlow
Desktop Point of Sale application screenshot
03Desktop Point of Sale
Clinical Reasoning Assistant application screenshot
04Clinical Reasoning Assistant
02 / Workflow productWeb application

ChurchFlow

A centralized administration system for members, ministries, attendance, donations, events, and operational reporting.

The problem
Recurring church administration was fragmented across spreadsheet-style records.
The implementation
A single relational system designed around real weekly admin workflows.
Engineering note
Small data-model decisions shape the speed of everyday work.

Stack

  • Java
  • Spring
  • JPA
  • MySQL
GitHub Live demo Request a walkthrough
04 / AI-assisted clinical workflowWeb application

Clinical Reasoning Assistant

A clinician-facing application that turns anonymized consultation notes into structured reasoning support and editable clinical documentation for clinician review.

The problem
Consultation notes need to be organised into clear considerations, missing information, and usable documentation.
The implementation
An authenticated workflow with ranked differentials, red flags, suggested next checks, and editable clinical notes and referral letters.
Engineering note
AI-assisted workflows need clear boundaries, structured outputs, and human review built into the experience.

Stack

  • Next.js
  • React
  • TypeScript
  • OpenAI
  • Clerk
  • Vercel
GitHub Live demo Request a walkthrough

Experience

A foundation in support.
A focus on software.

Years of resolving incidents and helping users shaped how I approach development: understand the problem, make the solution clear, and think about what happens after release.

View my full CV
2026 – NowSoftware development

Software Developer Intern

Pinnacle ICTCurrent

Contributing to software development, debugging, testing, and application support while building practical experience with professional engineering workflows.

2022 – 2025Software development

Software Developer

Teodor Dev Tech

Delivering self-led and small-client software across Java, Spring Boot, React, Next.js, databases, deployment, and responsive web experiences.

2018 – 2022IT support

IT Technician

Adcock Ingram

Owned end-user support across workstations, software, networks, printers, and access, building production-minded troubleshooting habits.

2012 – 2015IT support

IT Technician

Netsurit

Built a foundation in managed IT services, incident resolution, documentation, and clear communication with users and teams.

About & capabilities

Curious about how things work.
Careful about how they’re used.

I’m Theodore, a developer based in Pretoria. Through Teodor Dev Tech and my internship at Pinnacle ICT, I’m building on my IT background with hands-on software development.

I like working through everyday business problems: the records that need organising, the steps that can be simpler, and the small details that make an application easier to support.

Currently developingDeeper Spring architecture, testing, and production delivery.

01

Backend

Business logic & services

Java · Spring Boot · REST APIs · JPA · JWT

02

Frontend

Interfaces people can use

React · Next.js · JavaScript · Responsive CSS

03

Data & delivery

From persistence to release

PostgreSQL · MySQL · JDBC · Git · Vercel · MSI

Education & credentials

A formal foundation.
Continued learning.

2024Systems Development · NQF 6Boston City Campus2017Systems Support · NQF 5MICT SETA2012Microsoft Certified IT ProfessionalTorque IT

References

Kateka NgobeniColleague · 0657312079Phumlani MthembuTeam leader · 0712558303

Get in touch

Good software starts
with a conversation.

I’m looking for a junior backend or full-stack role where I can contribute, learn, and build useful software with a team.

Let’s talk
Open to opportunitiestheodorelnelson@outlook.com+27 60 636 0886

Pretoria, South Africa

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