Дмитро

Dmytro Kolisnyk
Full Stack Developer
[open contact info](look above in the "contact info" section) · Telegram: @deepsomnias

ABOUT
I've been building web products for about five years now - mostly full-stack, mostly JavaScript, with a fair amount of
TypeScript, Node, React, and Vue in the mix. I started out doing WordPress work, which taught me a lot about client
communication and shipping things that actually work in production. Over time I moved into more complex territory:
SaaS platforms, eCommerce tools with 3D editors, corporate portals, and backend services for real-time video
streaming.
I like working across the full stack because it lets me see the whole picture. I've also picked up PHP/Laravel,
Python/FastAPI, and some Rust along the way - not as my main tools, but enough to be useful when a project calls for
it.

SKILLS
Frontend: JavaScript, TypeScript, React, Vue, Next, HTML5, CSS3, Tailwind CSS, Bootstrap
Backend: Node.js, Express.js, Next, REST APIs
Databases: PostgreSQL
Streaming & Media: RTSP, WebRTC, frame processing, overlays
Tooling & DevOps: Docker, CI/CD, Git, Webpack, Vite, Gulp, NPM, NSIS
Other: PHP / Laravel, Python / FastAPI, Rust, WordPress theme & plugin development

EXPERIENCE

Full Stack Developer — Best U Team Aug 2023 – Present
–​ Working across eCommerce, SaaS, and video streaming products - usually involved from architecture through to
deployment.
–​ Reworked backend microservices handling RTSP/WebRTC streams; cut latency roughly in half by profiling
bottlenecks and rethinking how frames were buffered and forwarded.
–​ Migrated a legacy corporate portal frontend to React + TypeScript
–​ Set up Docker-based environments and CI/CD pipelines for several projects; deployments that used to take a
couple of hours now run in a few minutes.

Full Stack Developer — Sweet Stack Digital Aug 2022 – Aug 2023
–​ Built a full-stack eCommerce platform featuring a 3D product editor (React + Three.js + REST API), where
customers could configure products in real time - color, shape, size — and see prices update live based on their
selections.
–​ Handled both the frontend (interactive UI, 3D rendering performance) and the backend (business logic, pricing
rules, WordPress integration).
–​ Spent a good chunk of time on render optimization - Three.js scenes can get heavy fast, so keeping things smooth
for average hardware was a real focus.

WordPress Developer — Beetroot AB Apr 2020 – Aug 2022
–​ Delivered end-to-end websites for clients across a range of industries - landing pages, corporate portals,
entertainment and gaming products.
–​ Built and customized WordPress themes and plugins from scratch, tailored to each project's requirements rather
than patching generic templates.
 –​ Integrated various third-party APIs and marketing tools, and worked closely with designers to translate mockups
into working, accessible pages.
–​ Picked up a lot of habits here around SEO, performance, and just making sure things don't break for real users on
real devices.

EDUCATION

State University of Intellectual Technologies and Communications
Bachelor's Degree · Odessa, Ukraine · 2015 – 2019
Studied radio and telecommunications systems. Also spent time building and programming Arduino-based robots -
which, honestly, was where a lot of the hands-on problem-solving mindset came from.