Hello, my name is

Dmitrii
Demin.

I am an independent startup founder and developer. Every product below started as my idea — then became a system I designed, built, deployed, and continue to operate.

Dmitrii Demin
TOOLS I BUILD WITHPythonFastAPIPostgreSQLDockerRedisLinux

Available for new projects

15+years in design
& software
20+products & startups
designed and built
10k+market listings processed
in analytics pipelines

REMOTE-FIRST
INDEPENDENT PRACTICE

About / my path

From design
to systems.

Independent developer & founder — designing, building, and operating products end to end.

I started in 2011 as a graphic designer, shaping brands and visual identities. For nearly eight years design was my craft — and it still shapes how I build today: clarity, structure, and attention to the smallest detail.

Around 2019 I began moving from pixels to logic. I taught myself to code, built websites, then started automating the manual work behind real businesses. Design turned into architecture; layouts turned into systems.

Along the way I started a lot of things — some grew, many did not. I have built and shut down apps, tools and startups that never found their market. That is the point: I keep building, I ship real products, and I learn more from the ones that fail than from the ones that work.

Today I work independently across the full lifecycle of a digital product — I design it, engineer the backend, deploy it, and keep it running in production. Every project in this portfolio is one I own end to end.

  1. 2011 — 2019Graphic design

    Brand and visual identity work. The foundation of how I think about product, structure and detail.

  2. 2019 — 2021Into code

    Self-taught engineering. First websites, first automations, first products of my own.

  3. 2021 — 2023Building systems

    Backend services, data pipelines and automation for real business operations.

  4. 2024 — nowIndependent products

    Founding, building, deploying and operating software end to end.

Selected work / 2024—2026

Products I’ve
built.

A selected portfolio of independent software products — from concept and product design to engineering, deployment, and ongoing operation.

01 / MARKET INTELLIGENCE
2025—PRESENT

Zabery.pro

An AI-powered platform for monitoring the secondary electronics market. It evaluates public listings, estimates fair value, maps regional prices, and surfaces relevant opportunities to subscribers.

  • 10,000+ listings in data workflows
  • MacBook valuation model using CatBoost
  • Telegram alerts and tiered access
PythonPostgreSQLRedisAirflowDocker
MARKET PULSE
MacBook Pro 14" +8.4%
Yekaterinburg109 500 ₽FAIR
Moscow124 900 ₽WATCH
02 / MACOS PRODUCTIVITY
2026—IN DEVELOPMENT

Loqa

A focused macOS translation utility designed to work from the menu bar. The product explores an offline-first workflow for changing selected text without leaving the current task.

  • System-wide keyboard activation
  • In-place text replacement
  • Translation history & menu bar controls
macOSUX DesignLocal Workflow
Loqa
DETECTED: RUSSIAN

Привет, как дела?

⌘ ↵
TRANSLATED: ENGLISH

Hi, how are you?

RECENT   3 translations
03 / AI AUDIO
2025—PRESENT

ZVUCHI

An AI-assisted audio production service combining custom voice models with practical sound engineering — from restoration and vocal transformation to finished production workflows.

  • Voice conversion & restoration pipelines
  • Custom model training workflows
  • Production quality control & delivery
AI VoiceAudio ProcessingProduct Strategy
ZVUCHI®
VOICE / RESTORE / TRANSFORM
AI-ASSISTED AUDIO PRODUCTION
04 / OPERATIONS & API
2024—PRESENT

Provider
API

An anonymised provider API and operations platform for fulfilment, stock, sales, client balances and partner workflows. CRM and finance modules operate inside the same product.

  • Catalogue, stock and delivery operations
  • Client balances, revenue and margin visibility
  • Partner API requests, imports and reconciliation
PythonFastAPIPostgreSQLREST APIDocker

OPERATIONS / CORE

CRM + APICONTROLLED DATA FLOWS
JOURNAL
VERIFIED
IMPORTS
SYNCED
ORDERS
TRACKED
STATUS
● ONLINE

Beyond this page

This is only
a selection.

The projects above are the ones I chose to show. Over the years I've shipped dozens more — automation bots, data-monitoring tools, web and mobile apps, AI experiments, internal dashboards, and full brand and product design. Some grew into products, many were fast experiments. I build quickly and across the whole stack.

Telegram bots & automation Web & mobile apps Data monitoring & pipelines AI & voice Internal tools & dashboards Brand & product design E-commerce & marketplaces APIs & integrations

Have an idea?

Let's build it together.

Tell me what you want to make. Write me for a free consultation — I'll help you turn the idea into a real, working product as far as I possibly can.

BUILT REMOTELY
·
OPERATED GLOBALLY

Independent practice

One person.
Full ownership.

I work independently across the full lifecycle of a digital product: from research and architecture through backend development, deployment, monitoring, and continuous improvement.

My professional work is location-independent. Products are operated through secure online infrastructure, cloud servers, and digital communication tools.

Start a conversation

Working capabilities

01

Backend systems
Python · FastAPI · REST APIs · async services

02

Data & intelligence
PostgreSQL · Redis · ML pipelines · analytics

03

Automation products
Telegram · payments · subscriptions · workflows

04

Product operations
Docker · Linux · monitoring · deployment

Make something useful

Let’s build a product
people return to.