Available to hire
Hi, I’m Jonathan Lecun, a seasoned EFL/ESOL educator with 30+ years of global experience. I combine rigorous pedagogy with digital learning design to create engaging, accessible language programs for adults, online learners, and diverse settings. I’m known for person-centred teaching that motivates learners and delivers measurable attainment gains through creative instructional technology.
I’m passionate about leveraging AI and audio production to enhance learning experiences—training LLMs with high-quality linguistic data and producing authentic audio content. My approach blends linguistic expertise with digital innovation to design effective remote instruction and dynamic learning experiences that sustain engagement and achievement.
Language
English
Fluent
German
Advanced
Work Experience
Freelance Audio Content & AI Training at Project Aether / Outlier
November 1, 2025 - December 31, 2025Generated high-fidelity audio datasets for Project Aether, recording vocal responses to complex prompts to enhance the naturalism of AI speech synthesis; maintained an 89% "Good/Excellent" quality rating.
Freelance Digital Learning & Voicework Projects at Voices.com
September 1, 2025 - November 30, 2025Produced 51 science-fiction scripts, all approved on first submission — demonstrating precision, reliability, and creative agility. Expanded audio content portfolio while simultaneously advancing digital learning design expertise, integrating pedagogical rigor with creative production.
EFL Instructor (A1-C2) at Celtic English Academy
June 1, 2023 - September 30, 2025Innovated new reading approaches with 62% of upper-intermediate learners achieving 100% in reading tests; developed the concept of student writing portfolios to strengthen writing skills; achieved 80%+ average attainment in end-of-term tests. Engineered a 12x surge in online engagement via targeted digital design (Padlet).
AI Data Trainer at Stellar AI
June 1, 2024 - March 31, 2025Leveraged pedagogical expertise to design and validate complex content, safeguarding linguistic precision and instructional integrity in AI-generated scenarios.
ESOL Lecturer (A0-C1) at Coleg Gwent
June 1, 2020 - June 30, 2023Engineered a leap in student engagement, scaling monthly interactions from 30 (Canvas) to 1,400+ (Teams). Mentored five Entry 1 learners to progress directly to Entry 3 within a single academic year. Shortlisted for College Teaching Award (Dec 2022). Redesigned and updated materials for Entry 1 and 2 City and Guilds 4982 Skills for Life modules, securing formal praise from the IQA lead for the high quality of the content. Gained a Distinction for the PGCE while teaching full-time, achieving high scores in Developing Professional Practice (88%), Extending Professional Practice (86%), and Literacies for Learning (82%).
EFL Instructor (A1-C1) at Capital School of English
January 1, 2019 - April 30, 2020Achieved a 100% pass rate in IELTS and Cambridge exams through rigorous preparation strategies. Designed and authored a WordPress website for the school, elevating its digital presence and outreach.
Independent Digital Learning Designer & Educator (A1-C2) at English Teacher Jonathan
June 1, 2005 - PresentDelivered 20,000+ hours of online lessons worldwide, establishing deep expertise in remote adult learning. Designed, launched, and administered a WordPress-based digital service platform, managing all content promotion and educational resource sharing. Pioneered a person-centred one-to-one methodology over two decades, tailoring programs for adult learners worldwide. Maintained rigorous standards with 90%+ exam pass rates in high-stakes preparation courses.
EFL Instructor (A1-C2) at CELT (Centre for English Language Teaching)
June 1, 1997 - June 30, 2005Achieved a 100% Cambridge exam pass rate at CELT, establishing a benchmark for instructional excellence. Pioneered the use of Hot Potatoes software to generate listening exercises using songs for learners.
EFL Instructor (B2-C1) at Bilsit Tourism College / Aygaz PLC
June 1, 1996 - June 30, 1997Led ESP program for tourism students at David Game Bilsit college in Istanbul. Presented tailored Business English lessons for employees at a major Turkish firm.
EFL Instructor (A1-C1) at KEV Ozel Lisesi
June 1, 1995 - June 30, 1997Built foundational EFL skills at KEV High School teaching Turkish secondary learners.
Education
Postgraduate Certificate in Education (PGCE) – Distinction at University of South Wales
January 1, 2021 - January 1, 2023CELTA (Certificate in English Language Teaching to Adults) at Cardiff University
January 1, 1994 - January 1, 1994BA (Hons) English at Kingston University
January 1, 1990 - January 1, 1993Qualifications
Postgraduate Certificate in Education (PGCE) – Distinction
January 1, 2021 - January 1, 2023CELTA (Certificate in English Language Teaching to Adults)
January 1, 1994 - January 1, 1994Industry Experience
Education, Professional Services, Media & Entertainment, Software & Internet
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