Looks like you have JavaScript disabled. For the full Twine experience, you will need to re-enable it.

Hi, I’m Daniil, a software developer focused on building APIs and data-driven applications with Node.js, Next.js, and TypeScript. I bring a solid Computer Science foundation and additional expertise in Machine Learning and Computer Vision, with 4+ years of programming across diverse domains. I recently completed my Bachelor’s degree in Computer Science and Software Development at the University of the West of England, Bristol, and I enjoy turning ideas into scalable, production-ready software. I thrive in collaborative environments, value clean code, and love exploring new technologies such as ML, CV, and modern web stacks.…Hi, I’m Daniil, a software developer focused on building APIs and data-driven applications with Node.js, Next.js, and TypeScript. I bring a solid Computer Science foundation and additional expertise in Machine Learning and Computer Vision, with 4+ years of programming across diverse domains. I recently completed my Bachelor’s degree in Computer Science and Software Development at the University of the West of England, Bristol, and I enjoy turning ideas into scalable, production-ready software. I thrive in collaborative environments, value clean code, and love exploring new technologies such as ML, CV, and modern web stacks.

Daniil Grammatikopulo

Front-End Developer, Full Stack Developer, Back-End Developer, +2





Hi, I’m Daniil, a software developer focused on building APIs and data-driven applications with Node.js, Next.js, and TypeScript. I bring a solid Computer Science foundation and additional expertise in Machine Learning and Computer Vision, with 4+ years of programming across diverse domains. I recently completed my Bachelor’s degree in Computer Science and Software Development at the University of the West of England, Bristol, and I enjoy turning ideas into scalable, production-ready software. I thrive in collaborative environments, value clean code, and love exploring new technologies such as ML, CV, and modern web stacks.…Hi, I’m Daniil, a software developer focused on building APIs and data-driven applications with Node.js, Next.js, and TypeScript. I bring a solid Computer Science foundation and additional expertise in Machine Learning and Computer Vision, with 4+ years of programming across diverse domains. I recently completed my Bachelor’s degree in Computer Science and Software Development at the University of the West of England, Bristol, and I enjoy turning ideas into scalable, production-ready software. I thrive in collaborative environments, value clean code, and love exploring new technologies such as ML, CV, and modern web stacks.

Available to hire

Hi, I’m Daniil, a software developer focused on building APIs and data-driven applications with Node.js, Next.js, and TypeScript. I bring a solid Computer Science foundation and additional expertise in Machine Learning and Computer Vision, with 4+ years of programming across diverse domains.

I recently completed my Bachelor’s degree in Computer Science and Software Development at the University of the West of England, Bristol, and I enjoy turning ideas into scalable, production-ready software. I thrive in collaborative environments, value clean code, and love exploring new technologies such as ML, CV, and modern web stacks.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Language

English

Advanced

Russian

Fluent

Work Experience

Frontend Developer at PourPal

December 1, 2024 - December 1, 2024

Developed and deployed an online alcohol sales platform (PourPal) using a modern tech stack: Next.js, React Query, and ShadCN; including storefront and backoffice. Optimized SEO and frontend performance, enhancing user discovery and engagement across diverse devices and browsers. Collaborated closely in a Scrum team, contributing to UI/UX design, feature development, and testing.

ML Engineer at Deep Signus

June 1, 2025 - June 1, 2025

Built a gesture recognition system enabling remote signatures with a single camera (MediaPipe, PySide6). Optimized system performance, achieving a 60–75% reduction in latency by fine-tuning frame skip parameters, and improved robustness to 90% accuracy in signature recognition under diverse lighting and backgrounds via DL-based background removal.

Frontend Developer at Red Pill Cryptocurrency

June 1, 2024 - June 1, 2024

Designed and implemented the frontend branding page for a cryptocurrency monitoring web app using CoinGecko API, Chart.js, and DataTables, enabling real-time data visualization. Enhanced user engagement with interactive charts, responsive tables, and intuitive UI elements.

Blockchain Researcher at Blokkypay

December 1, 2023 - December 1, 2023

Researched and optimized Solidity smart contracts using Hardhat, Ethers.js, and OpenZeppelin; implemented CREATE2 Minimal Proxy Contracts to reduce gas costs by 78.73%. Recognized for technical innovation, earning 3rd place at the Ideahub competition and a €1000 prize.

Backend Developer at GameCat

June 1, 2023 - June 1, 2023

Developed a secure Spring Boot MVC application for publishing game releases, using Spring Security, PostgreSQL and JPA. Implemented authenticated CRUD operations and role-based access control, ensuring data integrity and secure user interactions.