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STANISLAV MALIIENKO
Full-Stack Developer | Node.js, React, Python, PHP

SUMMARY
Senior Backend Engineer with 7+ years of experience building scalable web applications, APIs and
backend systems primarily in Node.js (React, Vue.js), Python(Django) and PHP (Symfony, Laravel).
Relational data modelling, schema and index design, using MySQL and PostgreSQL.
Develop end-to-end features — from product discussion and API design and tests under load. Adopting
cloud infrastructure (AWS S3, Lambda, ECS) and integrating modern development practices. Solid
foundation in backend engineering — REST APIs, data modelling, queues, caching, auth, queues
(RabbitMQ), caching, docker.
Experienced with modern architectural patterns — DDD, event-driven processing, CQRS, hexagonal
architecture
Uses AI as a productivity multiplier with a clear understanding of its limitations.

Skills
Languages: Python 3.x, TypeScript, JavaScript, Node.js, PHP 8.2+
Frontend: React, Next.js, TypeScript, component-driven development
Backend: FastAPI, Django, Symfony, Laravel, REST API design, API versioning, idempotency, rate
limiting, background jobs and queues
Databases & Messaging: MySQL, PostgreSQL, Redis, RabbitMQ
Architecture: DDD, event-driven architecture, SOLID principles, clean code
Cloud & DevOps: Docker, AWS, CI/CD (GitHub Actions / GitLab CI), Nginx
Testing: Jest, Vitest (unit & integration), Playwright (E2E), pragmatic about what's worth testing and
what isn't
Security: auth & identity management, token/session lifecycle, OWASP-aware development, secrets
management, input validation
AI & integrations: OpenAI API, LLM integration, prompt engineering, critical review of AI-generated
code
English: B2+

EXPERIENCE
FirstColo | Full Stack engineer
Nov 2022 – Present
Designed and developed project with hybrid architecture (core monolite with microservices parts).
Developed UI part, Built reusable React components and worked on user-facing flows in Next.js
with attention to performance
Designed and implemented full lifecycle of standalone architectural components and APIs in Python
— built independent microservices responsible for data processing, analytics, and third-party
integrations
Maintained codebase and added new feature to the core Domain (PHP, Symfony)
Modelled data and tuned queries across PostgreSQL and MySQL; used Redis for caching and session
storage, RabbitMQ for async workflows and background jobs
Wrote unit and integration tests with Jest and E2E coverage with Playwright on critical user paths
Deployed and managed application infrastructure using cloud technologies (AWS / Docker / CI-
CD), improving scalability and release speed
Integrated AI-powered features into the platform. Critically reviewing, testing, and refining AI-
generated code
Academic work | backend developer
Sep 2024 – June 2026
Developed card recogniser model using Python, YOLO, OpenCV
Developed model for the model Unlearning (FT, RL).

PrinterCo | Full Stack developer
Sep 2017 – Nov 2022
Developed frontend side of the product-system using Node.js, Vue.js
Maintained the project website, ensuring stable operation, fixing issues and delivering updates
Integrated third-party APIs with the device enabling communication between hardware and
backend services
Achievements
Participation in the wold-wide Computer Science conference.
Designed scalable and highly reliable services. Responsible for the full lifecycle of the feature.
Successfully maintained and modernised legacy projects, improving stability, performance.
Adopted and implemented cloud technologies (AWS / GCP / Docker / CI-CD pipelines),
streamlining deployment workflows and improving infrastructure reliability
Integrated AI-driven features into products, leveraging LLM APIs and machine learning tools to
enhance user experience and automate business processes.

SOFT SKILLS
Business-oriented problem solving (deep dive mindset)
Strong client communication (meetings, task discussions)
Time management (Jira, Kanban)

EDUCATION
UNIVERSITY OF CUSTOMS AND FINANCE
Bachelor's Degree, Information Technology
Sep 2014 – Jun 2018
Master's Degree, Information Technology
Sep 2018 – Jan 2020

Contact Interests
[відкрити контакти](див. вище в блоці «контактна інформація») Basketball
[відкрити контакти](див. вище в блоці «контактна інформація») Gym
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Hiking
islav-malienko-67252b312/