Ілля

ILLIA KUPRIIANOV
Senior Full Stack Engineer | Python · React · React Native · AI Integrations
10 years of experience • Kyiv, Ukraine • English: Upper-Intermediate (B2)
[відкрити контакти](див. вище в блоці «контактна інформація») • [відкрити контакти](див. вище в блоці «контактна інформація») • LinkedIn • GitHub

PROFESSIONAL SUMMARY
Senior Full Stack Engineer with 10 years of experience building and maintaining SaaS platforms, marketplaces, ERP and CRM systems,
business automation tools, mobile applications, and data-driven products. Strong expertise in Python, Django, PostgreSQL, React,
React Native, Docker, AWS, scalable backend architecture, and concurrent product delivery. Experienced in technical leadership,
REST APIs, real-time systems, CI/CD, iOS and Android delivery, and modern AI integrations.

CORE COMPETENCIES
● Backend architecture & API development ● Team leadership & mentoring

● SaaS product development ● Real-time systems & WebSockets

● Mobile application development ● AI integrations & agent workflows

● Cloud infrastructure & DevOps ● Product design & technical planning

CAREER OVERVIEW
2016 - Present | Full Stack Software Engineering. Recent work centers on the selected concurrent client projects below. Earlier
experience included fintech and cryptocurrency products, with a focus on backend services, integrations, web interfaces, databases,
and production support.

SELECTED CONCURRENT PROJECT PORTFOLIO
The dates overlap because several products were delivered and supported in parallel. The portfolio highlights major ownership
engagements first, followed by focused modular implementation and support work.

D2I-Vantage - Senior Full Stack Engineer | Dec 2025 - Present
Chromatography data-processing platform with backend services, domain workflows, and a React interface.
Contribution: Major full-stack ownership across technical design, Django and Flask services, APIs, background processing, data workflows, React
features, and production support.
Technology: Python, Django, Django REST Framework, Flask, PostgreSQL, PostGIS, Celery, Docker, React

GoFlooring - Senior Full Stack Engineer | Apr 2023 - Present
Quoting and ERP product supporting operational workflows for a flooring business.
Contribution: Major ownership of backend workflows, REST APIs, asynchronous jobs, data and geospatial functionality, React/PWA features,
releases, and ongoing product evolution.
Technology: Python, Django, Django REST Framework, PostgreSQL, PostGIS, Celery, Docker, React, PWA

Ziscuit - Senior Full Stack Engineer | Feb 2022 - Jul 2023
Grocery auction marketplace connecting buyers and suppliers through a digital procurement workflow.
Contribution: Major delivery role across marketplace workflows, REST APIs, background processing, geospatial functionality, web and mobile-facing
features, deployment, and iterative product development.
Technology: Python, Django, Django REST Framework, PostgreSQL, PostGIS, Celery, Docker, React, React Native, PWA
Buildwise - Full Stack Python Developer | Jun 2023 - Nov 2025
Construction project management system delivered as a progressive web application.
Contribution: Modular feature implementation and ongoing support across backend APIs, background jobs, React/React Native functionality,
maintenance, and issue resolution.
Technology: Python, Django, Django REST Framework, PostgreSQL, Celery, Docker, React, React Native, PWA
CoursPi - Full Stack Python Developer | Nov 2023 - Mar 2024
Private-school ERP system.
Contribution: Modular implementation and support for business workflows, backend APIs, background tasks, and React/PWA features.
Technology: Python, Django, Django REST Framework, PostgreSQL, Celery, Docker, React, PWA

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Kidiboard - Full Stack Python Developer | Nov 2023 - Mar 2024
Social and group-course platform for children and parents.
Contribution: Modular implementation and support across Django APIs, background processing, React/React Native features, and product
maintenance.
Technology: Python, Django, Django REST Framework, PostgreSQL, Celery, Docker, React, React Native, PWA
Gryps - Full Stack Python Developer | Mar 2023 - Sep 2023
SME procurement portal for matching businesses with suitable product and service providers.
Contribution: Modular backend implementation and support covering procurement workflows, data handling, Celery tasks, deployment,
maintenance, and issue resolution.
Technology: Python, Django, PostgreSQL, PostGIS, Celery, Docker, DigitalOcean

TECHNICAL LEADERSHIP & DELIVERY
Provides technical direction across concurrent products, translating business goals into architecture, milestones, and maintainable
implementation plans.
Coordinates backend, frontend, infrastructure, release, and production-support work; reviews implementations and resolves cross-
system technical issues.
Mentors developers through design discussions, code review, debugging, and practical engineering standards while remaining hands-on
with delivery.

AI & AUTOMATION FOCUS
Builds integrations with OpenAI and Claude APIs for conversational interfaces, agent-assisted workflows, prompt-driven automation,
and task orchestration. Focus areas include reliable API integration, structured outputs, workflow control, error handling, and
embedding AI capabilities into existing SaaS products.

TECHNICAL SKILLS
Programming Languages
Python · JavaScript · PHP
Backend
Django · Django REST Framework · Django Channels · Celery · RabbitMQ · WebSockets
Frontend
React · React Native · React Query · Material UI · Vue.js · jQuery
Databases
PostgreSQL · Redis · MongoDB · MySQL
Cloud & DevOps
Docker · Docker Compose · Docker Swarm · AWS (EC2, SES) · Nginx · GitHub Actions · Jenkins · DigitalOcean
Mobile
React Native · Firebase Cloud Messaging · App Store Connect · Google Play Console
AI & Automation
OpenAI API · Claude API · AI agents · LLM integrations · Conversational AI · Prompt engineering · Workflow automation
Development Tools
Git · PyCharm · Jira · Redmine
Ways of Working
Agile · Scrum · Kanban · Mentoring · Team leadership

EDUCATION
Kyiv National University of Technologies and Design
Field of study: Small & Medium Business · 2016

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