Semen P.-Full Stack/AI/Mobile Developer
Check rate
Experience
Senior Full-stack AI Developer
Vasilkoff CY Ltd
- Transitioned into Full Stack AI Development, integrating AI models into React, TypeScript, and PostgreSQL-based applications.
- Built machine learning models and AI algorithms to enhance product features, leveraging tools such as Python, TensorFlow, and AWS AI services.
- Enhanced customer retention by 20% by developing personalized recommendation systems using machine learning.
- Achieved a 40% reduction in time-to-insight by automating data visualization processes using Python.
- Secured 2nd place in the Bank of Cyprus Hackathon and 1st place in the Huawei Hackathon for the most innovative solutions under tight pressure.
- Culture Builder: Fostered an environment of continuous learning toward delivering high-quality websites that resulted in a remarkable 30% increase in project completion speed.
Full-stack and mobile application developer
Vasilkoff CY Ltd
- Mobile Development: design, developing, and maintaining Android Apps. Implemented user centric designs across applications on the PlayStore at over 10 million downloads.
- Full-stack Development: Built and led successful execution of 8 projects, each achieving customer satisfaction ratings above 4.5 stars.
- Collaborations: Coordinated closely with cross-functional teams to deliver robust and user friendly Android applications, contributing 25% increase in customer satisfaction.
- AI research: Collaborated with data scientists to analyze large datasets using Python, R, and SQL to uncover trends and patterns that informed business decisions. Built predictive models for customer segmentation, churn prediction, and recommendation systems, improving overall campaign efficiency by 15%.
Junior web developer
MM Online Services Ltd
- Devised modular front-end architecture with back-end services improving customer satisfaction by reducing task completion time by 25%.
- Implemented video streaming services with an array of payment gateways, resulting in zero data breaches reported within three months after deployment.
Software developer intern
Amasty Ltd
- Influenced in Magento projects, applying foundational programming skills and algorithm design, achieving consistent task completion rates above 90%.
- Developed and maintained over 5 intern projects on GitHub, focusing on PHP, JavaScript, and .NET frameworks.
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Information Technology.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Information Technology, Product Development, Research and Development, and Business Intelligence.
Summary
Full Stack/AI/Mobile Developer with over 10 years of experience in web and mobile application development. Championed a diverse team of 10 developers to deliver tailored digital solutions, enhancing user engagement and responsiveness across three major platforms; outcomes led to positive client feedback on performance improvements.
Skills
- Frameworks: React, Nodejs, Angularjs, Spring Boot, Laravel
- Database: Mysql, Postgresql, Mongodb, Sql, Nosql
- Tech: Front End, Web Development, Web Applications, .Net
- Cloud & Tools: Aws, Kubernetes, Firebase, Apache Tomcat, Apache Kafka, Microservices
- Mobile Development: Android (Java, Kotlin), Flutter, React Native, Ios
- Ai: Llm, Gpt, Llama, Tensorflow, Pytorch
- Other: Design Patterns, Git, Scripting
Languages
Education
Priazovsky State Technical University
Bachelor of Computer Science · Computer Science · Dnipro, Ukraine
Statistics
Experience
Global experience
Expertise
Qualifications
Profile
Frequently asked questions
Have questions? Find more information here.
Semen is based in Paphos, Cyprus and prefers 100% remote projects.
Semen speaks the following languages: English (Native), Ukrainian (Native), Greek (Advanced), Russian (Advanced).
Semen has at least 14 years of experience. During this time, Semen has worked in at least 4 different roles and for 3 different companies. The average length of individual experience is 4 years and 7 months. Note that Semen may not have shared all experience and actually has more experience.
Based on recent experience, Semen would be well-suited for roles such as: Senior Full-stack AI Developer, Full-stack and mobile application developer, Junior web developer.
Semen's most recent position is Senior Full-stack AI Developer at Vasilkoff CY Ltd.
In recent years, Semen has worked for Vasilkoff CY Ltd.
Semen is most experienced in industries like Information Technology.
Semen is most experienced in business areas like Information Technology, Product Development, and Research and Development. Semen also has some experience in Business Intelligence.
Semen has recently worked in industries like Information Technology.
Semen has recently worked in business areas like Information Technology, Product Development, and Research and Development.
Semen holds a Bachelor in Computer Science from Priazovsky State Technical University.
Semen is immediately available full-time for suitable projects.
Daily rate distribution
The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.
Average rates for similar positions
Rates are based on recent contracts and do not include FRATCH margin.
The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.
The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.
Calculated based on our freelancers’ daily rates as of 11 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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