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EXPLORE
4.7
4.7
100%
$30 USD / Hour
・
Czech Republic (6:19 AM)
・
Joined on October 8, 2025
・
1 Recommendation
$30 USD / Hour
・
I build scalable web applications, SaaS platforms, and custom business systems from idea to deployment. I specialize in creating modern, secure, and maintainable solutions with high-quality frontend experiences, robust backend architecture, and reliable integrations. My services include: - SaaS platforms and MVP development - Custom web applications - CRM, ERP, and business dashboards - REST API development - Database design and optimization - Cloud deployment and maintenance - Third-party service integrations I help startups and businesses transform ideas into reliable digital products.
Verifications
On time
100%
On budget
100%
Accept rate
88%
Repeat hire rate
17%
Theme modification, Bug Fix
AI-Powered Agriculture E-commerce
UI/UX Redesign for SaaS Application
UI/UX Redesign for SaaS Application
Graphic design
Build Custom Sections for Store
Build Custom Sections for Store
Build Custom PDP and Collection Page
Build Custom PDP and Collection Page
Theme modification, Bug Fix
AI-Powered Agriculture E-commerce
UI/UX Redesign for SaaS Application
UI/UX Redesign for SaaS Application
Graphic design
Build Custom Sections for Store
Build Custom Sections for Store
Build Custom PDP and Collection Page
Build Custom PDP and Collection Page
Vinay
₹10,000 INR
Jaroslav completes the required job in the given period of time and will not disappoint with the quality of work
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Lewis
$25 USD
True professional in every since of the word
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Jaroslav has demonstrated strong knowledge of website development during the first phase of our project. He understands requirements well and implements tasks exactly as discussed. We are now continuing into the second phase with him because of his technical skills, responsiveness, and willingness to execute the requested work accurately. I appreciate his professional approach and look forward to completing the remaining development successfully.
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Good guy I love his work great communication as well
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Experience
Full Stack Web, Mobile & AI Engineer
Nov, 2022 - Dec, 2025
•
3 years, 1 month
Freelance / Product Development
Nov, 2022 - Dec, 2025
•
3 years, 1 month
Built intelligent web and mobile applications as a Full Stack and AI Engineer. Integrated AI features such as NLP, chatbots, recommendation systems, and predictive analytics into production products. Developed modern frontends with React and Next.js, scalable backends with Node.js and NestJS, and deployed reliable, cloud-ready systems.
Kladno, Czech Republic
Nov, 2022 - Dec, 2025
•
3 years, 1 month
Senior Full Stack & Mobile App Engineer
Sep, 2020 - Oct, 2022
•
2 years, 1 month
Freelance / Consulting
Sep, 2020 - Oct, 2022
•
2 years, 1 month
Led development of scalable web and mobile applications as a Senior Full Stack Engineer. Built backend systems using NestJS, Express, and Spring Boot, and developed cross-platform mobile apps with React Native and Flutter. Implemented authentication, payments, real-time features, and push notifications while improving performance, security, and scalability in production environments.
Kladno, Czech Republic
Sep, 2020 - Oct, 2022
•
2 years, 1 month
Full Stack Web Engineer
Jan, 2019 - Aug, 2020
•
1 year, 7 months
Freelance / Independent
Jan, 2019 - Aug, 2020
•
1 year, 7 months
Worked as a Full Stack Web Engineer delivering end-to-end web applications for startups and small businesses. Built responsive frontend interfaces using React, Vue.js, and Angular, and developed secure backend services with Node.js, Laravel, and Django. Designed and optimized PostgreSQL, MySQL, and MongoDB databases, integrated third-party APIs, and focused on clean architecture, performance, and maintainability.
Kladno, Czech Republic
Jan, 2019 - Aug, 2020
•
1 year, 7 months
Education
Czech Technical University in Prague
2015 - 2018
•
3 years
Master in Information Technology
Czech Republic
2015 - 2018
•
3 years
Certifications
Python
JavaScript
P
Preferred Freelancer Program SLA
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