LTLizeka Tshayinyoni
@lizekatshayinyoni
Versatile biomedical technologist and AI trainer blending science, education, and cybersecurity.
South AfricaWhat I'm looking for
I am a multidisciplinary professional with a background in biomedical technology, six years managing a clinical laboratory, and experience as a self-published author and online English educator. I combine technical rigor from the lab with strong communication and instructional skills developed through online tutoring and authorship.
Recently I have transitioned into tech-focused freelance work, spending eight months training AI models for South African English locales, and gaining hands-on experience in app testing and domain quality evaluation. I also hold a Coursera certificate in cybersecurity and practical skills in SIEM tools, Linux, SQL, Bash, and vulnerability analysis.
I bring leadership in operations, quality control, and budgeting from my laboratory management role, paired with a commitment to continuous learning and delivering culturally relevant, high-quality outputs in AI, cybersecurity, and education.
Experience
Work history, roles, and key accomplishments
App Tester
Test Worker
Conducted functional and usability testing of pre-release mobile applications, identifying issues and recommending improvements to enhance user experience and performance.
AI Model Trainer
Outlier.ai
Trained AI models for South African English locale to ensure cultural and linguistic relevance and performed QA by reviewing and refining outputs to maintain high precision and quality standards.
NSLaboratory Manager
National Health Laboratory Services
Managed daily laboratory operations for six years, implementing quality control, health & safety protocols, inventory and budget oversight, and equipment maintenance to ensure reliable test results.
Online English Tutor
Magnificent Kids
Delivered online English lessons to students aged 5–15, designing engaging curricula and adapting instruction to diverse skill levels to improve language proficiency.
TIDomain Quality Rater
Evaluated website content for accuracy, relevance, and alignment with domain purpose, flagging low-quality content and improving overall content quality assessments.
Education
Degrees, certifications, and relevant coursework
Unknown (TEFL provider)
120-hour TEFL Certificate, Teaching English as a Foreign Language
Completed a 120-hour TEFL certificate for teaching English as a foreign language.
COCoursera (online)
Certificate, Cybersecurity
Completed a cybersecurity certificate covering SIEM tools, Linux, SQL, Bash, vulnerability analysis, and intrusion detection systems.
NUNelson Mandela University
University Diploma, Biomedical Technology
Completed a University Diploma in Biomedical Technology with majors in Microbiology, Haematology, and Clinical Chemistry.
Availability
Location
South AfricaAuthorized to work in
Job categories
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