Feedback from people I’ve coached on interviews, communication and career development.
Here they all are, short ones included, newest first. Choose a topic to see what people said about interviews, tech English, business English or speaking with confidence. Photos are shown with each reviewer’s permission.
Preply scores
Quoted word for word from my Preply, italki and Superprof profiles. Some clients reviewed me on more than one site; their review appears once, with every site they wrote on. Superprof recommendations aren’t rated, so they have no stars and aren’t counted in the review totals. Some reviews were written in another language and translated by Preply. “…” marks where I shortened a long review.
The 2,127 sessions are my combined count across Preply, italki, Superprof and private coaching, recorded in October 2026; no single platform verifies the combined total. The 54 rated reviews comprise 41 on Preply, 11 on italki and 2 on Superprof. They are review counts, not 54 unique clients or a hiring success rate. Unrated recommendations are separate.
Interview coaching →Communication coaching →Leadership coaching →
★★★★★“I’m satisfied w all our classes! Thank u!!!”
★★★★★“Mark is an awesome teacher. He has it all perfectly structured and organized, with a highly professional method tailored exactly to my needs. On top of that, his technical background and real cases are directly aligned with my goals. Highly recommended!”
★★★★★“Good tutor for improving technical and IT English. Clear explanations and practical speaking practice.”
★★★★★“Explains clearly, lessons are useful.”
★★★★★“Mark helped me with my resume and he is an excellent English teacher for engineers.”
★★★★★“I appreciate that Mark answers all my questions and provide good materials and phrases I can use in my job. Also Mark pays attentions to my pronunciation and common mistakes, and write them down so I could work on them later. Thank you!”
★★★★★“Mark is a great teacher and a person to talk to. He is so knowledgeable in a variety of topics, so I am exposed to different vocabulary and phrases.”
★★★★★“I think Mark is the best teacher for job interviews and self presentation skills improvement. Thank you!”
★★★★★“Classes with Mark are very enjoyable and dynamic, which makes learning truly motivating. He has a great command of technology, which greatly facilitates online sessions. He explains clearly, adapts to the student's pace, and uses a variety of resources. Totally recommended!”
★★★★★“I highly recommend this teacher! He is a true professional with a unique and well-structured teaching method. Every lesson is tailored to the student's individual needs, and you can feel how carefully and thoughtfully he guides each person through their learning journey. His positive attitude and encouraging approach make learning English both effective and enjoyable”
★★★★★“First of all, Mark listens to his students. That's the most valuable thing about him. He then tailors the program to the student, and it works really well because you learn exactly what you need.”
★★★★★“Great teacher!”
★★★★★“Mark is a good teacher, I am very happy and the classes are very enjoyable.”
★★★★★“After many attempts at finding the right teacher on Preply, I finally found one I’m truly satisfied with. Mark is an exceptional teacher with deep technical knowledge. He inspires, encourages, and helps me excel in job interviews. I highly recommend him to anyone looking to break into the tech industry and improve their conversational and business English.”
★★★★★“Mark prepares classes very thoroughly and has a great method for practicing public speaking, new vocabulary, and mock interviews. He follows up on the agreed lesson plan, but is also flexible enough if you wanna practice something specific and provides great resources for homework.”
★★★★★“Mark is great and fun to talk to. He covers a lot of different topics. I enjoy my lesson with Mark.”
★★★★★“I highly recommend Mark! The lessons are well-structured and tailored to my needs, particularly for preparing for technical job interviews. He have helped me improve both my fluency and confidence, especially with professional and IT-specific vocabulary. A fantastic choice for anyone aiming to advance their career in an English-speaking environment!”
★★★★★“Mark is great! I was looking to improve my speaking skills, preferably with lessons focused on the IT/software environment. He has a lot of topics prepared and a structured plan. He's fun and easy to talk to. It's difficult for me to keep a conversation going, but he's able to make me speak. :)”
★★★★★“Mark is an excellent tutor with deep knowledge of the business world. In every lesson, I learn new words and expressions and as a native speaker he also provides insight into their frequency of use and relevance. The topics are interesting to discuss, and the lessons fly by.”
★★★★★“Mark is an excellent tutor! Our lessons were not only engaging but also very insightful, especially in helping me improve my business English skills. He provided great conversations tailored to my needs and helped me feel confident communicating in an English-speaking IT environment. Highly recommend!”
★★★★★“I was searching for business English lessons and Mark has been a tremendous help. His captivating teaching style, coupled with his extensive knowledge of the English language, has made learning both enjoyable and effective. He has a remarkable ability to simplify complex concepts, making it easy for me to grasp even the most challenging aspects of the language. Mark consistently provides personalized feedback and encouragement, pushing me to reach my full potential. I wholeheartedly recommend Mark to anyone seeking a passionate and knowledgeable English teacher.”
★★★★★“It is great to work with Mark. He is encouraging and supportive. I am more confident now. Thank you Mark!”
★★★★★“Mark has been helpful on interview prep!”
“excellent first lesson!”
“Thank you for the lesson! With you, I’m learning not only English, but also a lot about business and technology. It makes the learning process much more interesting and practical.”
★★★★★“A very structured tutor with plenty of well-chosen materials on topics I care about, especially business, IT, and tech. Lessons stay focused and practical, which makes progress clear and consistent.”
★★★★★“Mark is a great English tutor. He helps me feel more confident when speaking and introduces useful vocabulary in a clear and practical way”
★★★★★“Thank you for the support you've provided in elevating my career. Your guidance during this course has been exceptionally helpful, and I'm grateful for the insight and professionalism you've shared.”
★★★★★“Thank you”
“Great lesson! Mark helped me to prepare a business presentation in extremely short time and gave really useful tips. Now I feel much more confident to deliver my talk.”
★★★★★“I want to say Thanks to Mark, because quality of my english really increases, I feel this! We can discuss something and Mark can hold a conversation in different topics! Of cause we have a teaching plan and we analyse this each quarter for correct it based on new knowledges.”
★★★★★“Mark is truly an excellent teacher who can create a personalized learning program tailored to your needs. As a native speaker, he is able to teach you real conversational English.”
“Mark , has a excellent organization in his methodology, very attentive and direct. He’s really good for helping you improve”
“I have taken Mark's classes and am extremely satisfied. His professionalism and ability to teach technical English is excellent. He is a very knowledgeable person in the area of data analysis for business purposes, so he not only teaches English, but also knows exactly what he is talking about. This leads to much more authentic and truthful dialogues. Thanks to him, it was much easier to prepare for my meeting with foreign partners. Highly recommended!”
“I highly recommend Mark! He is smart, friendly, and an excellent communicator. He helps me improve both my business English and daily speaking skills. His lessons are always well-structured and very useful. Mark explains everything clearly and pays attention to details that help me speak more naturally. He also gives great advice on how to find a job and helps me prepare for behavioral interviews. I really enjoy our lessons!”
★★★★★“Mark is a great professional. I would strongly recommend him, especially if you want to improve your business English, fine-tune your CV, or simply improve your speaking skills.”
★★★★★“He was able to help me with various expressions and helps me practice various expressions. I feel like I'm learning a lot of expressions and improving with every time lesson.”
“Mark is an excellent teacher. Thank you, it was a great lesson! He has deep knowledge of job interviews and uses all modern tools. Each student gets a Google Doc, and he provides additional resources, which is very convenient.”
★★★★★“Mark is a very nice friend, not just a teacher. He is very professional and shares a lot of English materials. He is very active in the lesson, encourages you to speak more, and gives you positive response. Also, you can share your daily life with him. Try one class, and you will know what I am talking about! : )”
“It's my first time with Mark. I think he has great teaching mind, and his materials are well structured i think. so, Im really looking forward to meeting with him next lessons. plus, he is so kind and good listener of student.”
★★★★★“Mark is a great English teacher and a kind, friendly person. What I like most about his lessons is how personalized they are. As an IT developer, I wanted to focus on topics relevant to my work, and he ensured we discussed technical subjects, IT-related business processes, and even the latest news in engineering and tech. Mark helps to prepare and practice role-playing scenarios like explaining projects to a team, preparing presentations for stakeholders, or getting ready for job interviews in English. He always asks what I want to improve and designs exercises around those goals. What surprised me was how much he knows about IT. … These lessons feel natural, not like reading from a textbook. If you need a teacher who listens, adapts, and makes learning practical (and fun!), Mark is the right choice.”
“Mark is an amazing English tutor! His lessons are always interesting, engaging, and well-prepared. He takes a personalized approach, tailoring lessons to your goals and needs. Mark explains things clearly and makes even difficult topics easy to understand. He’s patient, supportive, and makes learning stress-free. Mark is also great at tracking progress. He notices your strengths and weaknesses and adjusts lessons to help you improve step by step. This makes learning organized and effective. As someone in IT, I feel lucky to have Mark as my tutor. He has experience in product development and understands IT processes well. This makes him the perfect choice if you’re preparing for interviews, need help with technical English, or want to feel confident joining a new team. I highly recommend Mark to anyone who wants to improve their English, especially if you work in IT. …”
★★★★★“Marc is a great teacher of business English and other topics. After a few hours with him, I can already notice the first improvements.”
★★★★★“Marks makes a beautiful use of technology, always finding interesting online stuff to improve your English. Also, his work experience helped me find a job as a programmer”
★★★★★“I wanted to improve my english IT business skills and I think I am gonna get it with Mark. His lessons are well-structured an he prepares so well his class and give me a lot of vocabulary. Highly recommended!”
★★★★★“I recommend Mark in 100000%”
★★★★★“I've been learning with Mark to boost my technical English and get ready for IT job interviews, and it’s been great. The lessons are really focused on what I need, whether it's learning new words or just getting better at speaking fluently. Mark is flexible and makes each session feel useful and personalised. His tips have definitely made me more confident when talking about tech stuff in English. If you're looking to improve your English for work, especially in tech, I highly recommend him!”
★★★★★“Fun and engaging lessons that not only cover grammar but also dive into interesting current events, making it a great way to learn and stay engaged”
★★★★★“Mark is a great tutor! The lessons are fun, clear, and helpful. I’ve made good progress in speaking and grammar. Highly recommend!”
★★★★★“Preparing the presentation tips with Mark. A lot of good tips, excellent tutoring and well-prepared tasks.”
★★★★★“Excellent and a pleasure to work with”
★★★★★“I felt really confident that Mark will help me achieve my goals.”
“I would like to thank Mark for his professionalism and support. As an international recruiter, English is an essential part of my daily work … Mark helped me significantly improve my business English, build confidence in conducting interviews in English, and prepare for my own job interviews. Thanks to his guidance, I successfully passed an interview in English with an international company and now use English confidently in my career. What I value most is his practical approach: our lessons were focused on real-life professional situations, which made the learning process directly applicable to my work. I truly appreciate Mark’s support and can highly recommend him to anyone who wants not only to improve their English but also to achieve real results in their career.”
“Mark is a great teacher, passionate and knowledgeable. He helped me speak more fluently and naturally in various situations, from office environments to casual conversations with friends. Thanks to him, I’ve improved both my CV and my LinkedIn content. Highly recommended, especially for those with business or career goals.”
I’ve left their names out. Results depend on the job market and on the work you put in, so I can’t promise you the same outcome.
These are my accounts of coaching engagements, with client names withheld. Platform reviews describe clients’ experiences; they do not independently verify these employers’ hiring decisions. Coaching cannot guarantee a job offer or promotion.
United States
Belgrade, Serbia
Spain
Germany
Chicago, United States
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2,127 sessions · 5.0 on Preply from 41 reviews, Top 15% of English tutors · 4.9 on italki from 11 · 5.0 on Superprof from 2
My Preply profile: one-to-one Business English, interview and career coaching for people in tech. I’m a Professional Tutor there, with a verified teaching certificate, and in the top 15% of English tutors.
Read reviews on PreplyMy italki profile: English and communication coaching for work. I’m a qualified specialist in Business English there.
Read reviews on italkiMy Superprof profile: interview coaching for engineers and product leaders going for senior roles. I’m a Super Tutor there.
Read reviews on SuperprofA few honest sentences help the next person decide whether I’m the right coach for them. Write whatever is true for you, including what could have been better.
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