Владислав

Vladyslav Bilskyi
Python Developer
[open contact info](look above in the "contact info" section) Ukraine [open contact info](look above in the "contact info" section) github.com/hittiks

PROFILE
Python Backend Developer with 3+ years of commercial experience designing and developing scalable
backend systems, REST APIs, and automation solutions. Strong hands-on experience with Python, FastAPI,
PostgreSQL, SQLAlchemy, Pydantic, Redis, Docker, Git, and Linux, with a focus on asynchronous
programming and high-performance services. Experienced in LLM integrations, including OpenAI API,
LangChain, embeddings, pgvector, and Retrieval-Augmented Generation (RAG), as well as integrating YOLO-
based computer vision into backend pipelines. Built and maintained Telegram bots (including fintech) and
third-party API integrations. Proficient in high-load web scraping using Playwright, aiohttp, httpx, and
modern anti-bot bypass techniques. Familiar with JavaScript, Kubernetes, GraphQL, WebSockets, and
collaborative software development.

EXPIRIENCE
Freelance Software Developer 06/2023 – 10/2025
Developed Telegram bots using Python and aiogram/pyrogram.
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Built REST APIs with FastAPI.
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Worked with PostgreSQL, SQLite, and performed optimization of database
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queries.
Implemented many different scrapers for websites (including using Playwright,
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bypassing CloudFlare challenges and etc).
Deployed applications on Linux servers (mostly AWS).
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Integrated third-party APIs.
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Worked on multiple client projects in automation, backend development and data
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scraping.
Python Backend Developer (Outsource/Outstaff) 10/2025 – 05/2026
Xedrum
Contribute to multiple outsource and outstaff projects, including blockchain
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analytics, GenAI applications, Telegram bots development and data-driven
platforms.
Design and develop scalable backend services using Python, FastAPI, SQLAlchemy,
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PostgreSQL, Redis, Docker, Prefect, Kubernetes and AWS infrastructure (EC2, S3,
CloudFront).
Build and maintain REST APIs, authentication flows, background processing
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pipelines, and integrations with third-party services.
Participating in development features using AI-related technologies, including
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OpenAI API, embeddings, LangChain, RAG pipelines, and pgvector-based search.
Implementing different scrapers for blockchain resourses and other websites with
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data required for the product to work.
Participate in backend architecture decisions, database design, API contract
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planning, and production deployment processes.
Python Backend Developer (Technical Integrator) 05/2026 – Present
Confidential Tech Company
Developed Python (FastAPI) backend services with third-party integrations.
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Designed and implemented Retrieval-Augmented Generation (RAG) solutions
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using embeddings and vector search with PostgreSQL (pgvector).
Integrated YOLO-based computer vision models into production backend
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pipelines for automated image processing.
Developed Telegram bots and automated business processes.
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Worked with Meta Business tools and APIs, including webhook integrations and
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messaging workflows.
Built internal web applications using JavaScript (frontend and backend) to support
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business operations.
Configured postbacks, event tracking, and data integrations between external
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platforms.
Designed PostgreSQL databases and managed Docker deployments on Linux.
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SKILLS
Programming Languages Backend
Python; Javascript/TypeScript (basic) FastAPI; asyncio; SQLAlchemy; Pydantic; Alembic;
Celery
Databases & storage
PostgreSQL (& pgvector), SQLite, Redis; SQL query API & web technologies
optimisations REST APIs, GraphQL (basic), WebSockets;
Authentication & Authorization (OAuth 2.0, JWT,
GenAI & AI tooling Basic Auth)
OpenAI API; LangChain; Embeddings; RAG;
pgvector; LLM integration; YOLO; PyTorch; DevOps & cloud
Computer Vision Docker; Docker Compose; Kubernetes (basic);
Nginx; Linux; Git; GitHub; GitHub Actions; AWS
Scraping & automation (EC2, S3, IAM, CloudFront); Hetzner
BeautifulSoup; httpx; aiohttp; requests; Playwright;
cURL; data validation and cleaning pipelines; Anti- Testing & quality
bot bypass; Browser automation; High-load Pytest; code review; performance optimization;
scraping refactoring

PROJECTS
Freelance Projects 06/2023 – 10/2025
Python Backend Developer | mostly solo developing & maintaining | International
Delivered custom backend and automation solutions for multiple freelance clients
across different business domains.
Telegram Automation
Developed Telegram bots for business automation, content management, and user
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engagement.
Built solutions for multi-channel administration, automated posting, moderation
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workflows, referral systems, and custom admin tools.
Web Scraping & Data Collection
Designed high-load data collection systems using asynchronous Python,
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Playwright, aiohttp, and proxy rotation.
Built reliable scraping pipelines for protected websites using browser automation
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and modern anti-bot handling techniques.
Developed data synchronization pipelines for continuously updating large
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datasets from external sources.
Backend Systems & Architecture
Developed backend services and APIs supporting automation systems and real-
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time data processing.
Designed scalable backend architectures and automation workflows based on
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client requirements.
Designed efficient data synchronization mechanisms that minimized bandwidth
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usage and server load while enabling near real-time client updates.

Prismal 10/2025 – 04/2026
Python Backend Developer | Team: 5 members | Ukraine
Description: Blockchain compliance and transaction monitoring platform with
scalable APIs for wallet and transaction analysis across EVM, Solana, and TRON. The
system used a multi-service architecture, asynchronous processing, Telegram-based
UI, and secure production deployment.
Tools & technologies: Python, FastAPI, aiogram, SQLAlchemy, Alembic, Prefect,
AWS, Nginx, Docker, Docker Compose, Kubernetes, GitHub Actions, Playwright
Responsibilities:
Developed FastAPI services for wallet, multichain, and transaction analysis.
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Designed asynchronous Prefect pipelines for long-running blockchain analysis
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tasks and heavy computations.
Built and supported a Telegram bot with aiogram, Redis-based state management,
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middleware architecture, anti-flood systems and multilingual support.
 Integrated third-party services including webhooks, email notifications, and PDF
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reporting, and participated in CI/CD and deployment workflows.
Collected a large amount of data from external sources and significantly optimized
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database queries to improve the program's performance.
Intro Maven 04/2026 – 05/2026
Python Backend Developer | Team: 3 members | Canada
Description: A networking platform helping professionals discover events, follow
personalized growth roadmaps, and manage connections. Backend services
supported event aggregation, AI-powered recommendations, and embedding-based
search and matching.
Tools & technologies: Python, FastAPI, SQLAlchemy, Alembic, Prefect, PostgreSQL,
pgvector, OpenAI API, LangChain, RAG
Responsibilities:
Developed high-performance data collection pipelines to aggregate large volumes
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of data from multiple external sources using asynchronous Python and web
scraping technologies.
Implemented data validation, normalization, and transformation logic to convert
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heterogeneous external data into a consistent internal domain model.
Improved reliability of data ingestion by handling inconsistent source formats,
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edge cases, and data quality issues.
Collaborated on the design of the project's AI architecture, contributing to
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technology selection, LLM evaluation, embedding strategy, and RAG pipeline
design.
Worked closely with backend and AI engineers on the integration strategy for
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OpenAI, LangChain, embeddings, and PostgreSQL pgvector.
AI-powered Automation & Customer Engagement Platform 05/2026 – Present
Python Backend Developer (Technical Integrator) | Team: about 10 members |
International
Description: Backend systems, AI integrations, Telegram bots, internal web
applications and Meta ecosystem integrations.
Tools & technologies: Python, FastAPI, RAG, LLM, OpenAI API, Computer Vision,
aiogram, PostgreSQL, SQLAlchemy, Alembic, Nginx, Docker, Docker Compose
Responsibilities:
Developed backend services and automation solutions in Python for internal and
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customer-facing products.
Designed and implemented Retrieval-Augmented Generation (RAG) solutions
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using vector search (pgvector) and LLM-based knowledge retrieval.
Integrated YOLO-based computer vision into backend pipelines for automated
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image analysis.
Developed and maintained Telegram bots, including integrations with external
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business systems and APIs.
Contributed to application architecture and technical design decisions for internal
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platforms.
Integrated Meta Business Platform services, including webhooks, messaging APIs,
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and related business tools.
Collaborated with cross-functional teams to define technical solutions and deliver
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production-ready features.

EDUCATION
Bachelor of Science in Computer Science 2021 – 2025
National University of Radioelectronics

LANGUAGES
Ukrainian Russian English
Native Native B1-B2