CV

Freelance · June 2026 — present

Ko-ko Money — a personal budget tracker (local-first PWA)

• Sole developer, full cycle from scratch: product idea, architecture, frontend, backend, deployment.
• Frontend in SvelteKit (Svelte 5) + TypeScript + TailwindCSS; local-first: data in IndexedDB (Dexie), full offline operation.
• PWA with home-screen install, a service worker and automatic version updates.
• Designed an unconventional drag-and-drop input UX: three rows of circles — income sources, accounts, spending categories.
• Multi-currency: each account has its own currency, cross-currency transfers, exchange rates loaded from an external API.
• Budgets and limits with colour-coded indicators, goals and savings (debts).
• Analytics: donut charts by category and source, a monthly income/expense graph, a daily report, filters and tag breakdown.
• JSON backup export/import with file validation; PIN protection and persistent storage.
• Backend in FastAPI + PostgreSQL (Docker): authentication and cross-device sync; VPS deployment.

Custom Telegram bots

• Custom Telegram bot development: automation, integrations.
• Current project — a calculation service bot: takes the user's personal data (name and date of birth), computes personalized metrics by the client's method and sells the result.
• Turned the client's scattered explanations into a clear development plan, the bot's structure and a step-by-step dialogue flow: data collection → input validation and correction → calculation → result delivery.
• Validation and auto-correction of user input (fixing common data-entry mistakes).
• Rendering the result as a «card» image: placing the computed numbers by coordinates into the template's slots (Pillow). The original calculator service has no API, so I built the rendering entirely from scratch.
• Text interpretations of the result on user request.
• Payment handling and an admin flow: confirming payments and forwarding the data to the client's private chat.
• A user database (SQLite): tracking purchases so users aren't charged again for an interpretation they already bought.
• Stack: Python, python-telegram-bot, Pillow, SQLite.

StellarTech · April 2026 — June 2026

Freelance involvement in the project (under a contractor agreement). Built a JS engine for visual-novel games from scratch — the engine was used by the team to create games.

Engine development

• Building the interface.
• Playback of dialogue sequencing.
• Dialogue branching.
• Visual effects.
• Sound effects.
• Scene transitions.
• Numerous gameplay mechanics.

Full-cycle plan for developing an educational game

• Choosing the topic, writing the script.
• Selecting the required visual effects.
• Generating images and assets with AI.
• Sourcing audio tracks (music, ambience, effects).
• Selecting gameplay mechanics.

Technical support

• Testing, bug hunting, bug fixing.
• Server deployment.

Freelance · September 2025 — April 2026

ComfyLauncher — application software for working with generative AI models (ComfyUI, Stable Diffusion). A full desktop application for simplified launching and management of ComfyUI: it solves the problem of complex AI-tool deployment and provides a ready-to-use, out-of-the-box solution without manual environment setup. Role: sole developer, full cycle — from design to releases and support.

Architecture and development

• Designed the application's modular architecture and project structure from scratch.
• Built a Python desktop application with external-process management.
• Developed a ComfyUI launch system supporting different modes (CPU/GPU).
• Implemented process lifecycle control, exception handling and fallback scenarios.
• Integrated WebView2 and the .NET Runtime to embed the web interface into a native application.
• Set up correct dependency handling and system-environment checks.

Engineering and resilience

• Implemented automatic checks for the presence and version of system components.
• Handled non-standard user scenarios (different Windows configurations, runtime conflicts, Defender/antivirus blocks).
• Introduced a logging and diagnostics system for incident analysis.
• Optimized the initialization and startup sequence of the AI service.

Product and operations

• Prepared the application for distribution (build, packaging, distribution).
• Ensured stable out-of-the-box operation without manual dependency installation.
• Tested on various user-machine configurations.
• Analyzed user incidents and shipped updates.
• Evolved the product based on feedback.

Agrotek LLC · April 2025 — September 2025

Development of an e-commerce website for the company (wholesale of filters for trucks and heavy machinery).

• Design of the site and all its pages.
• Catalog functionality and other site elements.
• Admin panel: adding products, publishing blog articles, tracking users and subscribers.
• Filter catalog backed by a PostgreSQL database.
• Request system — a feedback form via an email service.
• Newsletter subscriptions: collecting, storing and using emails.
• User accounts: order history and shopping cart.
• Server deployment with domain binding and SSL certificate setup.
• Responsive design for various devices.
• E-commerce functionality and order-management system.