Skip to main content
Substance JohnsonSJ
Open to opportunities

Substance Johnson

@substancejohnson

Customer Support Specialist with TixStash stakeholder support experience and event registration for 1,000+ attendees.

Nigeria
Message

At TixStash, I supported internal clients and stakeholders by responding to requests, tracking follow-ups, and keeping project documentation organized.

At Port Harcourt Tech Expo, I registered 1,000+ attendees, verified their information, and resolved check-in issues during the event.

For Ladies Can Tech and TechUp Port Harcourt, I handled phone and online inquiries, confirmed attendance, and helped attendees get the information they needed.

My experience also includes supporting clients at Princess Medical Centre and students at Megley Secondary School, as well as maintaining accurate records and schedules. I’m trained in virtual assistance, IT support, and generative AI productivity tools.

Experience

Work history, roles, and key accomplishments

PE

Customer Registration & Support Agent

Port Harcourt Tech Expo

Jun 2026 - Jun 2026 (0 months)

Registered 1,000+ attendees, including top officials and VIP guests, over a 2-day event, verifying data online for each registrant. Managed daily on-site tagging and check-in, resolving on-the-spot issues to ensure smooth, secure entry for every attendee.

PC

Volunteer Caregiver

Princess Medical Centre

Sep 2023 - Oct 2023 (1 month)

Provided daily one-on-one support to clients, responding promptly to needs and escalating concerns to healthcare professionals when required. Managed appointment and medication schedules and reminders, ensuring accuracy and strict adherence to prescriptions.

MS

Science Demonstrator & Class Teacher

Megley Secondary School

Jun 2022 - Jun 2023 (1 year)

Provided daily support and guidance to a large group of students, addressing questions and resolving concerns promptly and patiently. Maintained detailed, accurate records of individual student progress.

RU

Laboratory Intern (SIWES)

Rivers State University

Nov 2020 - May 2021 (6 months)

Provided administrative and process support to the laboratory team, documenting activity and maintaining organized, accurate records. Responded to day-to-day requests from supervisors, following procedures precisely and reporting results in a timely manner.

SD

Youth Tech Advocate (WOYA Representative)

Second World Summit for Social Development

Nov 2025 - Present (11 months)

Served as a front-facing representative for WOYA, fielding questions and providing information to delegates from multiple countries. Coordinated communication with the WOYA team, providing regular, accurate status updates.

HH

Customer Support & Event Coordinator

HARVOXX Tech Hub

Jul 2024 - Present (2 years 3 months)

Provided phone-based customer support and outreach, registering and confirming attendance for 700 beneficiaries. Organized the event venue and served as a point of contact for attendee questions throughout the event.

HH

Customer Support & Registration Lead

HARVOXX Tech Hub

Mar 2024 - Present (2 years 7 months)

Delivered phone and online customer support to event registrants, handling inquiries for approximately 1,000 attendees. Educated prospective attendees on event details, resolving questions and concerns to drive strong turnout and engagement.

Education

Degrees, certifications, and relevant coursework

DW

Digital Witch

IT Support Certificate, IT Support

2026 - 2026

Completed IT Support Certificate training from July to September 2026.

AA

Africa Agility

Product Design Scholarship, Product Design

2025 - 2025

Product Design Scholarship sponsored by Africa Agility from January to June 2025.

ALX logoAL

ALX

Virtual Assistant Course, Virtual Assistance

2024 - 2024

Completed Virtual Assistant Course from August to October 2024.

Rivers State University logoRU

Rivers State University

Bachelor of Science, Chemistry

2017 - 2022

B.Sc. in Chemistry with a project on the adsorption efficiency of biomass for dye removal from aqueous solutions.

ML

Microsoft & LinkedIn

Career Essentials in Generative AI, Generative AI

Career Essentials in Generative AI certification from Microsoft and LinkedIn.

MN

3MTT Nigeria

UI/UX Training Certificate, UI/UX

UI/UX Training Certificate from 3MTT Nigeria.

Great Learning logoGL

Great Learning

Introduction to Design Thinking, Design Thinking

Introduction to Design Thinking course from Great Learning.

Great Learning logoGL

Great Learning

UI/UX for Beginners, UI/UX

UI/UX for Beginners course from Great Learning.

PU

Product Design University

UI/UX Elementary Level, UI/UX

UI/UX Elementary Level course from Product Design University.

Cisco Networking Academy logoCA

Cisco Networking Academy

English IT 1 & English IT 2, English IT

English IT 1 and English IT 2 courses from Cisco Networking Academy.

TE

TERRAHAPTIX

Certificate of Appreciation, Appreciation

Certificate of Appreciation from TERRAHAPTIX.

HE

HERTECHTRAIL

Certificate of Appreciation, Appreciation

Certificate of Appreciation from HERTECHTRAIL.

Tech stack

Software and tools used professionally

Get matched with your dream remote job

Sign up now and join over 250,000+ remote workers who receive personalized job alerts, curated job matches, and more for free!

Sign up
Himalayas profile for an example user named Frankie Sullivan