My Resume

Professional experience, skills and achievements in web development, security and retail operations.

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Sinoxolo Jeremiah

Full Stack Developer • IT & Retail

Developer, security tinkerer and customer-facing operator. I build useful tools and I handle tills without breaking a sweat.

sr.jeremiah@outlook.com
+27 63 354 7337
Johannesburg, South Africa

Profile

Final-year Business Information Technology student at the University of Johannesburg with hands-on experience in customer service, cash handling, and point-of-sale operations alongside a growing portfolio of IT and software development projects. Combines retail and service experience with technical skills in programming, data analysis and cybersecurity. Open to both customer-facing retail/cashier roles and graduate IT programmes where I can contribute, learn and grow.

Key Strengths

  • Customer service excellence: cash handling, POS accuracy, order coordination and problem resolution.
  • Technical curiosity: projects in Python, C#, SQL and React Native with real deployments.
  • Security & IT labs: TryHackMe, HackTheBox, Kali Linux PEN-103, Cisco modules.
  • Reliability & adaptability: proven under pressure in busy retail and service environments.

Technical Skills

Retail & Business

Point-of-Sale operation, cash handling, customer service, inventory basics.

Languages

Python, C#, SQL, JavaScript (React/Next.js), HTML, CSS.

Data & Security

ETL concepts, pandas, Matplotlib, Kali Linux, Nmap, Wireshark, Burp (basic).

Tools & Cloud

Git, VS Code, Excel, Azure fundamentals, Supabase, Netlify/Vercel.

Selected Projects

Enhanced University Quiz App (C#)

Console app with admin/student panels, JSON persistence, timed quizzes, export to text files and attempt tracking.

Personal Website + Admin Dashboard (bigG3e)

Next.js + Supabase portfolio with stealth admin CMS and content management features.

Anonymous Social App

Anonymous platform with RLS, real-time posts, reactions, DMs and admin moderation (Next.js + Supabase).

Work Experience

Food Service Worker — Ray’s Kota, Johannesburg

  • Handled cash and card transactions accurately; balanced tills daily.
  • Provided frontline customer service and resolved complaints efficiently.
  • Coordinated kitchen orders and improved service flow under pressure.
  • Assisted with stock counts and flagged reorder points.

Education

Diploma: Business Information Technology (NQF6)

University of Johannesburg — Final year (expected Nov 2025)

2023 - 2025

Certifications & Badges

Cisco – Introduction to Cybersecurity

Aug 2025

Kali Linux Revealed (PEN-103)

79% complete — lab & configuration focus

Languages

  • English — Proficient writing, intermediate speaking
  • Setswana, Sepedi, siSwati — Intermediate
  • isiZulu, isiXhosa, Spanish — Beginner