ENTDECKEN


5,1
5,1
86%
$40 USD / Stunde
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Japan (12:49 PM)
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Joined on Juni 20, 2025
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4 Empfehlungen
$40 USD / Stunde
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Full-Stack & Mobile App & CRM & Artificial Intelligence Expert with over 8 years of experience designing and developing high-performance applications for web and mobile platforms. I specialize in creating AI-powered features, agentic AI workflows, machine learning solutions, natural language processing (NLP), cloud-native architectures, and scalable digital platforms that help businesses grow and adapt quickly. My technical expertise spans modern frontend frameworks (React, Angular, Vue, Next.js), backend development (Node.js, Python/Django, Java/Spring Boot, .NET Core), and mobile platforms (React Native, Flutter, Swift, Kotlin). I am also skilled in cloud computing (AWS, Azure, GCP), containerization and DevOps (Docker, Kubernetes, CI/CD), and databases (PostgreSQL, MySQL, MongoDB, Firebase, Redis). In the AI domain, I have built intelligent agents, RAG pipelines, and AI-driven SaaS solutions, leveraging frameworks like LangChain and integrating LLMs (OpenAI, HuggingFace, Anthropic) for tasks such as automation, decision-making, and conversational AI. My ML expertise includes computer vision, predictive analytics, and NLP applications such as chatbots, sentiment analysis, and text classification. I have successfully delivered projects across FinTech, Healthcare, E-Commerce, Travel, and EdTech, integrating complex workflows, APIs, and real-time features to provide seamless user experiences. My clients value me for writing clean, maintainable code, solving tough technical challenges, and delivering projects on time. Passionate about turning complex ideas into intuitive, impactful products, I bring a problem-solving mindset, strong communication skills, and a commitment to building solutions that deliver measurable business results.
Überprüfungen
Pünktlich
100 %
Im Budget
100 %
Annahmequote
100 %
Wiederholungsquote beim Engagieren
10 %

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AI-Powered Chatbot SaaS Platform

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EduWave - Corporate Survey Dashboard

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AI-Powered Chatbot SaaS Platform

Content automation: Reddit pain poin

Very professional and would work with again in the future.
Mohamed O.
@benny307
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Hounslow, United Kingdom
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I loved to work with jiayin and do my projects on time with high quality and he have solutions for any problem to make the project in high-quality without issues and im so happy to know him and we will work together in future projects ?
Hamad B.
@Wansoni
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Kuwait City, Kuwait
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Jiayin is a very reliable and patient developer. He helped me migrate my Moodle platform to a new server, fixed several critical issues (DNS, access problems, course management) and always explained what he was doing in clear, simple English. Communication was fast despite the time-zone difference and he respected my security requests carefully. I’m satisfied with this collaboration and I would work with him again on similar technical projects.
Marta R.
@martaricci1977
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Milano, Italy
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Jiayin helped me migrate my Moodle site from a problematic server and restore the platform in a very stressful moment. He was available when needed and handled the technical work carefully.
Marta R.
@martaricci1977
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Milano, Italy
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He told me he will finish in 3 days and after days, he couldn't complete, not responsible developer.
Ehemaliger Kunde (inaktiv)
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Erfahrung
Fullstack engineer & Principal Staff Engineer
März, 2022 - Apr., 2025
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3 Jahre, 1 Monat
Gree
März, 2022 - Apr., 2025
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3 Jahre, 1 Monat
-Built and shipped cross-platform mobile apps (React Native & Flutter) and responsive web apps (React/Next.js), delivering smooth UX, offline support, and fast load times. -Designed and operated REST/GraphQL backends (Node.js/NestJS + Python/FastAPI), containerized with Docker and deployed on AWS (ECS/EKS/Lambda) with GitHub Actions–based CI/CD.
März, 2022 - Apr., 2025
•
3 Jahre, 1 Monat
Bildung
Beijing Institute of Technology
2011 - 2016
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5 Jahre
B.S. in Applied Mathematics & Computer Science

China
2011 - 2016
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5 Jahre
Zertifizierungen
P
Preferred Freelancer Program SLA
AI Training - Freelancer Global Fleet