Jessica Khumalo

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Frontend Engineer at Denholm Networks · Web frontends · GraphQL, TypeScript

Denholm Networks
Cape Town, South Africa · SAST (UTC+2)
1+ years experience
University of Cape Town
English, Afrikaans, Spanish
Messaging unavailable

Overview

Frontend Engineer at Denholm Networks, focused on web frontends. Brought on-call pages for web down from 26 a week to 1. Most at home with React and TypeScript.

Good reasons to reach out
  • Second opinions on Lucene decisions
Please don't message about
  • Unpaid work or spec projects
  • Crypto token projects

Replies on weekends

Skills
web performanceTypeScriptLuceneReactGraphQL

Experience

  1. Frontend Engineer
    Oct 2025 - Present
    Denholm Networks · 1 yr · Full-time · Cape Town, South Africa
    • Shipped a rewrite that took build times from 43 minutes to under 4.
    • Wrote the web performance service that now handles 14 million requests a day.
    • Shipped 15 launches on the web team without a rollback.

References

No references yet.

Education

  1. University of Cape Town
    BSc, Mathematics
    2021 - 2025

Details

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