Данило

Danylo Siryi
Full-stack software developer
Kyiv, Ukraine · Open to relocation
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https://github.com/nwtes

Summary
Full-stack software developer with a strong foundation from a software development bootcamp and
self-directed study in computer science fundamentals, algorithms, and system design. Experienced building
full-stack web applications using Python, Django and JavaScript, with a focus on real-time collaborative systems,
backend–frontend integration, and scalable architecture. Applies software engineering principles to produce
maintainable, quality-focused code; comfortable working independently or in team settings and rapidly learning
new technologies.

Projects
Tire & Wheel E-commerce Platform — client project for a Ukrainian retailer (in Present
development, pre-launch)

• Building an e-commerce platform and internal CRM for an established tire and wheel retailer: a Django 6 /
Django REST Framework API consumed by two Next.js apps (a server-rendered storefront and a separate
staff CRM), on PostgreSQL with Celery + Redis for background jobs. Payment, delivery-carrier and
fiscal-receipt integrations are the next stage before launch.
• Designed tire search that extracts an exact tire size from free-text queries and scores the rest with
PostgreSQL trigram similarity (pg_trgm, GIN indexes); ranking product lines instead of individual SKUs made
search 10–20× faster.
• Migrated the client's legacy system: wrote idempotent importers that parse a raw MySQL dump (~158k
products, ~450k supplier spellings) and supplier price feeds; external-ID mapping raised the automatic
match rate from 77% to 97% on repeat imports, and ambiguous rows are rejected rather than guessed.
• Modelled the order lifecycle as a state machine with an append-only event log and concurrency-safe stock
reservations (row-level locking via select_for_update, automatic expiry), so two customers can never buy the
same last unit.
• Built the staff CRM: two-step login with TOTP 2FA and one-time recovery codes, an order queue, order and
customer cards with activity timelines, supplier offer search and review moderation.
• Added consent-gated product recommendations driven by browsing events and sales history, with profiles
rebuilt nightly by scheduled Celery tasks; new-order alerts are sent through a Telegram bot.
• Set up CI with GitHub Actions: ~530 backend tests against a real PostgreSQL, linting, migration checks,
builds of both frontends and dependency security audits on every push.

Collaborative Learning Platform Present

• Built a full-stack collaborative learning platform enabling real-time interaction between teachers and
students; implemented backend APIs and WebSocket channels to synchronize state and updates.
• Implemented authentication and role-based access control using Django auth and designed CRUD
workflows to manage courses, users, and content.
• Developed collaborative task-editing features supporting synchronized multi-user interaction and
conflict-resolution strategies to preserve data consistency in real time.

• Designed backend architecture and frontend integration to ensure reliable real-time communication and
scalable data handling; structured codebase for maintainability and reuse.
• Performed software testing to identify and resolve defects, ensuring high-quality product releases.
• Applied ICT knowledge to develop and test software solutions as a Software Development Apprentice.
• Applied problem solving skills to debug and resolve software defects, ensuring application stability and
performance.

Chess Platform with Experimental Engine (Ongoing Project) Present

• Developing a multiplayer chess platform with user accounts, match creation, and real-time gameplay
functionality; implemented game state synchronization and matchmaking logic.
• Implementing a bot opponent using a Minimax-based evaluation system combined with an experimental
neural model for position evaluation.
• Built a PyTorch-based training pipeline for chess position evaluation using Lichess game data, including
data preprocessing and model training loops.
• Designed system architecture for real-time game state synchronization and scalable multiplayer interaction,
emphasizing clear interfaces between the game engine and networking layer.

Education
IU International University of Applied Sciences In progress
BSc Computer Science | Remote study

Code Institute Sep 2025 – Dec 2025
Fullstack Software Development | Diploma · Dublin, Ireland

Interests
scalable system design, software engineering principles, practical application development

Skills
Programming Languages
Python, JavaScript, Java
Frameworks & Tools
Django, Django REST Framework, Next.js / React, PostgreSQL, Celery, Redis, SQL, Git, GitHub Actions, REST APIs
Core Concepts
Authentication & Authorization, CRUD Systems, Real-time Communication (WebSockets), Object-Oriented
Programming, Data Structures & Algorithms (fundamental)
Languages
English — C1 (IELTS); Ukrainian, Russian — native