Available for new projects

I build and ship web apps end-to-end.

Full-stack developer with a degree in applied mathematics and 4+ years of commercial work. Marketplaces, SaaS and real-time apps — Next.js, Node.js, PostgreSQL, Redis.

Avg. rating, Kwork + Fiverr
4.9 / 5
Orders completed
63
Repeat clients on Kwork
53%
Shipping in production
4+ yrs
01 / SERVICES

What I can build for you

01

Web apps & marketplaces

Multi-vendor marketplaces, SaaS dashboards and B2B platforms — from database schema to a fast, SEO-friendly Next.js front end.

02

Backend, APIs & integrations

REST APIs on Node.js with PostgreSQL and Redis: payment gateways, Yandex Direct, Trendyol and other third-party APIs, caching and distributed locks.

03

Real-time apps & automation

WebSocket chats and live video, Telegram bots and Puppeteer automation that keep running 24/7.

02 / SELECTED WORK

Selected projects

Yonekey — multi-vendor marketplace screenshot

Yonekey — multi-vendor marketplace

2022lead dev · ongoing
TASK
Build an AliExpress-style marketplace where many independent sellers list and sell their products.
DONE
Architected the platform end-to-end: product import from Excel and the Trendyol API, cart and checkout, and secure HLS video streaming.
Next.jsNode.jsPostgreSQL
Live surgery streaming for medical students screenshot

Live surgery streaming for medical students

2026MedTech contract
TASK
Let students watch operations live from several operating-room cameras and endoscopes.
DONE
Real-time web app with multi-camera streams and remote XYZ camera control over WebSockets.
ReactWebSocketsNode.js
Protivpozhara.rf — B2B tender platform screenshot

Protivpozhara.rf — B2B tender platform

2022full-stack · ongoing
TASK
Fire-safety companies needed one place to publish requests, find contractors and run tenders.
DONE
B2B platform with tenders and a real-time chat between clients and contractors, with voice messages and file sharing.
ReactNode.jsSocket.IO
Live site ↗
Dream Delivery — logistics SaaS for Kaspi sellers screenshot

Dream Delivery — logistics SaaS for Kaspi sellers

2024full-stack · ongoing
TASK
Kaspi.kz sellers needed delivery, courier tracking and pricing in one tool.
DONE
Order synchronisation with Kaspi, courier tracking, and a Puppeteer microservice that adjusts prices automatically against competitors.
ReactNode.jsPuppeteer
Live site ↗
GoodClicks — click-fraud protection screenshot

GoodClicks — click-fraud protection

2024full-stack · ongoing
TASK
Advertisers were paying for bot and competitor clicks on their Yandex Direct campaigns.
DONE
Worked on the bot-protection system, integrated the Yandex Direct API and payment acquiring, and built the client web app with tariffs.
ReactNode.jsRedis
Live site ↗
Gifts Tracker — Telegram Mini App for NFT gifts screenshot

Gifts Tracker — Telegram Mini App for NFT gifts

2026full-stack
TASK
Collectors of Telegram gifts needed one place to browse the market and check what a gift actually sells for.
DONE
Mini App with filters by collection, model and backdrop, sales and owner history in TON, a Python parser that indexes the collections, and a Fastify + PostgreSQL backend with a grammY bot.
Next.jsFastifyTON
Open bot ↗
★★★★★Fiverr
“It was an absolute pleasure working with Ata. He is an absolute pro and deployed my Court in just a few hours without any hiccups. I would honestly recommend his expertise.”
ra_scaleCI/CD
Positive reviewKwork
“The task was a turnkey CRM system, and Ata handled it brilliantly. I especially want to highlight his integrity, honesty, professionalism and speed. He lives by “fewer words, more action”. Golden hands, a bright mind and simply a very pleasant person. I will be back.”
svyatoslavputincewCRM system
Positive reviewKwork
“Speed — everything was ready within hours. Professionalism — set everything up perfectly, including subdomain routing. Documentation — detailed instructions for running it. Communication — excellent both ways. Confidently recommend to everyone!”
MTLDNext.js + Laravel deploy
★★★★★Fiverr
“I have loved your level of professionalism and willingness to teach me how to handle some of the technical issues I came across. The delivery was very fast and very well done.”
Fiverr clientCI/CD
Positive reviewKwork
“The best contractor for building a Node and React backend and frontend. The task was a web app for managing IoT devices, and Ata did a great job. Reliable, fully involved and always takes the project to the finish line — keeps improving it and fixes bugs that come up in production.”
andris2235IoT web app
Positive reviewKwork
“Ata is a really great specialist! We ordered an update of our client dashboard on React + Node.js. Top-level work, no unnecessary talk. We will keep working together — endlessly recommend!”
andreytukalovClient dashboard
★★★★★Fiverr
“Ata is the best. He helped me find vulnerabilities and a hacker attack, and helped me overcome that.”
ra_scaleCI/CD
Positive reviewKwork
“We needed a backend built and connected to the client side. Ata did it very quickly and well, explaining the details. Thank you! I will come back when needed.”
alecseybizenko777Backend
★★★★★Fiverr
“The delivery of the service was so fast. Communication was easy and the quality of service was excellent. I plan to work with him in the coming days.”
gekonge2025CI/CD

Kwork reviews are translated from Russian.

04 / PROCESS

How I work

  1. 011–2 days

    Brief

    A short call or chat to understand your goals, users and constraints. I write up the scope in plain language.

  2. 021–2 days

    Estimate

    Price, milestones and a timeline agreed up front, so you know what you get and when.

  3. 031–8 weeks

    Build & regular updates

    Short iterations with a staging link, so you can see and test progress as it happens.

  4. 04After launch

    Delivery & support

    Deploy to your server, hand over the code, and fix whatever comes up in production.

05 / STACK

Tools I use daily

FRONTEND
TypeScriptReactNext.jsTailwind CSSshadcn/uiTanStack Query
BACKEND
Node.jsNestJSExpressRESTGraphQLWebSockets
DATA
PostgreSQLPrismaSequelizeRedisMongoDBRabbitMQ
INFRASTRUCTURE
UbuntuNginxDockerPM2GitHub ActionsMinIO
06 / FAQ

Common questions

A landing page or bot takes 1–2 weeks, an MVP web app 4–8 weeks. You get a timeline with milestones before any work starts.

07 / CONTACT

Have a project in mind? Let’s talk.

Telegram is the fastest way to reach me.