08/21/2025 updated

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Certified ESL Teacher | Conversational & Business

Santander de Quilichao, Colombia
Colombia
TESOL Certification – International Open Academy; Specialized courses in Business English & Communication
Santander de Quilichao, Colombia
Colombia
TESOL Certification – International Open Academy; Specialized courses in Business English & Communication

Profile attachments

CV - Sebastian Sierra Castaño

TeachingBusiness EnglishCreative WritingEspañolSpelling and GrammarLearning StylesNegotiationProfessional CommunicationElearningVocabulariesWeb PlatformsCultural ExchangeDemonstration SkillsGoogle Meet
I'm a dedicated and passionate English teacher with several years of experience helping students and professionals achieve fluency and confidence in English. My background includes teaching both online and in-person, working with learners of different ages, cultural backgrounds, and proficiency levels. I specialize in designing personalized lessons that fit the specific goals of each student, whether they are preparing for exams, advancing their careers, or improving everyday communication skills.   Teaching Approach My methodology focuses on creating dynamic and interactive lessons that keep students motivated and engaged. I combine grammar, vocabulary, listening, and speaking practice with real-life scenarios to ensure that my students are not only learning the language but also applying it effectively. I make use of modern teaching tools, digital platforms, and authentic materials to create an enjoyable and results-driven learning experience.   Areas of Expertise   General English for beginners, intermediate, and advanced learners   Business English and professional communication (emails, presentations, negotiations)   Conversational English for fluency and confidence building   Exam preparation (TOEFL, IELTS)   English for travel and cultural exchange   Writing skills: academic essays, reports, and creative writing     Key Skills   Excellent communication and interpersonal skills   Strong ability to adapt lessons to different learning styles and needs   Experience in online teaching using, Google Meet, and other platforms   Patient, encouraging, and committed to student success   Bilingual teaching capacity (English–Spanish) to support beginners when necessary     Professional Goal My mission is to help learners unlock their potential through effective English communication. I take pride in seeing my students grow in confidence and achieve their personal and professional goals. As a freelancer, I'm committed to delivering high-quality lessons, meeting deadlines, and building long-term relationships with clients who value dedication and professionalism.

Experience

Professional experience0 - 5 years
Freelancer since2025

Languages

EnglishFluentSpanishNative speaker

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