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Stefan
@stefanyoshovski
Level 2
I build systems people actually want to use
Italy
English, Italian, Bulgarian, Spanish
About me
I'm Stefan, a Software Engineer specializing in AI solutions. I build custom chatbots, AI integrations, agentic workflows, and intelligent infrastructure. From embedding AI in applications to architecting complete systems. With 5+ years of experience and 300+ projects delivered, I focus on solutions that scale and perform.
Skills
Stefan
$75/hour
Offline •
Average response time: 2 hours
See my services
Rule Based Chatbots
I will set up tidio live chat and lyro ai chatbot for your website
WordPress
I will build a wordpress website for your local business
Want to work on an hourly basis?
Tell Stefan what you need.
$75
/
hourPortfolio
Work experience
Research & Development Software Engineer
ITI • Full-time
Jun 2025 - Present • 1 yr 4 mos
Applied Research and Development at a technology institute affiliated with the Polytechnic University of Valencia (UPV), contributing to an industrial project in the retail sector focused on autonomous inventory management systems.
Freelancer.com
Freelance • 13 yrs 10 mos
Chatbot AI Developer
Apr 2020 - Present • 6 yrs 6 mos
Designed, integrated, and deployed conversational automation and AI workflows for over 180 global clients, including strategic consulting and workflow development collaborations commissioned by major chatbot SaS Businesses.
Software & DevOps Engineer
Jun 2019 - Present • 7 yrs 4 mos
Architect and deploy scalable web platforms, e-commerce systems, and SaaS solutions for international SMBs, managing the full lifecycle from application development to automated DevOps and AI infrastructure.
155 Reviews
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Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
1-5 out of 155 Reviews
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Most relevant
mick2611
Netherlands
Great working with Stefan. He is even available after delivery. What a legend. Definitely recommend!
Helpful?
tonyyoshi
Italy
Simply wow! Stefan is a true AI specialist. I needed a chatbot that answers based on complex PDFs in the field of space projects. To be honest, the result exceeded my expectations. Great communication and outstanding service. Definitely will be coming back in the future
Helpful?
twoboo2
United Kingdom
Ongoing collaboration
Helpful?
beau_campbell
United Kingdom
It was a pleasure working with Stefan. He showed a fantastic amount of dedication to the project and produced an amazing chatbot which performs FANTASTICALLY. We are super impressed. I would highly recommend him and we would definitely use him again. 5 stars! ⭐⭐⭐⭐⭐
Helpful?
user16962821
New Zealand
Thanks Stefan, great work and I look forward to working with you on my future chat-bot projects!
Helpful?
