SerhiiOnyshchenko.

Hello, I am Fullstack developer

Order the project

I work with people all over the world to create impressive and functional websites that reflect each client’s unique personality.

About me

about me image

BIO

I am a Full-stack Developer specializing in building efficient business automation tools and scalable web applications. With a strong foundation in modern technologies like React, Next.js, and FastAPI, I bridge the gap between complex operational logic and intuitive user interfaces. My approach is rooted in 20 years of professional experience, allowing me to design solutions that are not just functional, but strategically aligned with business goals.

I excel at transforming manual workflows into automated systems, leveraging analytical skills to solve high-stakes technical challenges. Whether working independently or collaborating within a team, I bring professional maturity, resilience under pressure, and a commitment to high-quality code. I am constantly expanding my toolkit with the latest industry practices to deliver modern, reliable, and high-performance software.

EDUCATION

  • 2022 - 2023 / Python Developer Certificate, CyberBionic Systematics, Kyiv
  • 2024 - 2025 / Full-Stack Developer Certificate, GoIT IT School, Kyiv

ROLE

  • Full-stack Development (Next.js / FastAPI / PostgreSQL)
  • Containerization & Deployment (Docker / Git)
  • Business Automation & Telegram Mini Apps
  • Data Analysis & ORM (Pandas / Piccolo ORM)

tech-skills

      MY PROJECTS

        Benefits of working with me

        • Expertise

          With extensive experience in development, I have a deep understanding of programming and website development.

        • Communication

          Understanding your needs and wants is my priority and I am always available for discussions and open to corrections.

        • Art

          Thanks to my creative nature, I am ready to accept challenges and help you bring your ideas to life.

        • Urgent execution

          I understand how important time is to you. Ready to work quickly and efficiently, without reducing the quality of work.

        frequently asked question

        In the field of web development, there are various technologies and programming languages. Typically, this includes a combination of frontend (client side) and backend (server side) languages.

        The terms of project implementation depend to a large extent on a number of factors, such as the scope of the project, its complexity, and the availability of resources. Determining exact deadlines is a difficult task, and it usually occurs during the planning phase of the project.

        Payment through credit and debit cards such as Visa, MasterCard, specialized electronic payment systems such as PayPal, as well as payments in cryptocurrencies such as Bitcoin, Ethereum and others.

        In the field of web development, there are various technologies and programming languages. Typically, this includes a combination of frontend (client side) and backend (server side) languages.

        The terms of project implementation depend to a large extent on a number of factors, such as the scope of the project, its complexity, and the availability of resources. Determining exact deadlines is a difficult task, and it usually occurs during the planning phase of the project.

        Payment through credit and debit cards such as Visa, MasterCard, specialized electronic payment systems such as PayPal, as well as payments in cryptocurrencies such as Bitcoin, Ethereum and others.

        Reviews

        Let's work together

        Contact me to transform your ideas into exceptional solutions.

        Thank you for your interest in cooperation!

        The manager will contact you shortly to discuss further details and opportunities for cooperation. Please stay in touch.