
Stefan Theron
@stefantheron
Founder of Pathidon, writing about investor psychology and behavioral finance for better long-term decisions.
What I'm looking for
At Pathidon, I focus on investor psychology and behavioral finance. I write about how fear, overconfidence, impatience, and ego shape investment decisions, and how emotional discipline can support better long-term outcomes.
At PEAI, I create tests, schedules, and content for two schools. At Spark Education Consulting, I create books and instructional content for PEAI and Spark Education, with a focus on writing and narrative learning materials.
At Poly Inspiration, I developed instructional content, teaching schedules, and assessments for an AI-driven English learning product. I also contributed to WordIt, a published educational language-learning app, and connected classroom needs with product and R&D requirements.
Earlier, I taught English to learners from kindergarten through adulthood and designed curricula and assessments. I completed an MBA in Management through the University of the People and would like to enter the business field after many years of teaching.
Experience
Work history, roles, and key accomplishments
Research And Development Specialist
PEAI
Mar 2026 - Present (8 months)
Create tests, schedules, and overall content for two schools
Research And Development Scientist
Spark Education Consulting
Jan 2026 - Present (10 months)
●Create books and instructional content for two academies, PEAI and Spark Education.
●Design and expand content offerings, with a focus on developing writing and novel-based/narrative learning materials.
Founder
Pathidon
Jan 2026 - Present (10 months)
Behavioral finance platform focused on investor psychology, emotional discipline, and long-term decision frameworks.
Assistant R&D Manager
AIEI
Apr 2023 - Mar 2026 (2 years 11 months)
Worked as Assistant R&D Manager at AIEI.
Language Specialist
Poly English Language Academy
Jan 2024 - Jan 2026 (2 years)
Taught English across kindergarten, elementary, middle school, and adult learners; designed curriculum and assessments and trained and managed junior teaching staff.
Students achieved speaking-competition awards, successfully hosted business events with international clients, and went on to secure work internationally.
Research And Development Scientist
Poly Inspiration - South Korea
Jan 2021 - Jan 2024 (3 years)
●Developed instructional content, teaching schedules, and assessments for an AI-driven English learning product used with elementary and kindergarten students.
●Designed student curriculums and tests, and contributed to WordIt, a published educational language-learning app.
●Bridged education and product/R&D functions, translating classroom needs into content and testing requirements.
Assistant R&D Manager
Korea Poly School
May 2022 - Apr 2023 (11 months)
Content Creation and Educational Research
English Teacher
Hyunjae English Language Academy
May 2020 - May 2022 (2 years)
I teach elementary and middle school kids conversational English.
Language Specialist
HyunJae English Language Institute
Jan 2020 - Jan 2021 (1 year)
Taught English across kindergarten, elementary, middle school, and adult learners; designed curriculum and assessments and trained and managed junior teaching staff.
Students achieved speaking-competition awards, successfully hosted business events with international clients, and went on to secure work internationally.
English Teacher
Language Cube
May 2019 - May 2020 (1 year)
I taught English to adults in a major business area in Seoul.
Language Specialist
Language Cube Yeoksam
Jan 2019 - Jan 2020 (1 year)
Taught English across kindergarten, elementary, middle school, and adult learners; designed curriculum and assessments and trained and managed junior teaching staff.
Students achieved speaking-competition awards, successfully hosted business events with international clients, and went on to secure work internationally.
English Teacher
OneWorld Language Institute
Apr 2018 - May 2019 (1 year 1 month)
English teacher to business professionals in Pangyo, Seongnam, South Korea.
Language Specialist
OneWorld Language Institute
Jan 2018 - Jan 2019 (1 year)
Taught English across kindergarten, elementary, middle school, and adult learners; designed curriculum and assessments and trained and managed junior teaching staff.
Students achieved speaking-competition awards, successfully hosted business events with international clients, and went on to secure work internationally.
English Teacher
Wonderland Language Institute
Mar 2017 - Apr 2018 (1 year 1 month)
I taught kindergarten and elementary students English.
Language Specialist
Gangdong Wonderland
Jan 2017 - Jan 2018 (1 year)
Taught English across kindergarten, elementary, middle school, and adult learners; designed curriculum and assessments and trained and managed junior teaching staff.
Students achieved speaking-competition awards, successfully hosted business events with international clients, and went on to secure work internationally.
English Second Language Teacher
GnB
Feb 2016 - Mar 2017 (1 year 1 month)
I taught elementary and middle school kids English.
Language Specialist
GnB Academy Jongchon
Jan 2016 - Jan 2017 (1 year)
Taught English across kindergarten, elementary, middle school, and adult learners; designed curriculum and assessments and trained and managed junior teaching staff.
Students achieved speaking-competition awards, successfully hosted business events with international clients, and went on to secure work internationally.
Language Specialist
CHUNGDAHM Learning
Jan 2015 - Jan 2016 (1 year)
Taught English across kindergarten, elementary, middle school, and adult learners; designed curriculum and assessments and trained and managed junior teaching staff.
Students achieved speaking-competition awards, successfully hosted business events with international clients, and went on to secure work internationally.
Proofreader
Leon Roper Psychology Firm
Jun 2015 - Nov 2015 (5 months)
I worked on the psychology reports for the clients of Leon Rooer at his psychology practice. I fact checked the work and also made changes to the English structure and grammar.
Proofreader
Brooklyn Psychological Services
Jan 2015 - Jan 2015 (0 months)
●Proofread and edited professional documents for accuracy, clarity, and tone prior to distribution.
Bartender
Zappas
Dec 2011 - Jul 2014 (2 years 7 months)
It was a great learning experience while working with some amazing people. I learned a lot in regards to management and connecting with different individuals.
Education
Degrees, certifications, and relevant coursework
FVZS Leadership Institute
Master of Business Administration, Organizational Leadership
Stellenbosch University
Bachelor of Arts, Humanities/Humanistic Studies
2011 - 2015
i-to-i TEFL
Teaching English as a Foreign Language (TEFL)
Aug 2015
University of the People
Master of Business Administration - MBA, Business, Management, Marketing, and Related Support Services
2018 - 2021
I completed my MBA in Management through the University of the People. I would like to enter the business field after many years of teaching.
Tech stack
Software and tools used professionally
Availability
Location
Authorized to work in
Salary expectations
Social media
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