Vladyslav Kiienko-Romaniuk

Vladyslav Kiienko-Romaniuk

Software Engineer

phone_android 570 354 699 email kiienko.romaniuk@gmail.com KIIENKO-ROMANIUK FunnyCPP
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About

Software Engineer with a Computer Science degree and over 5 years of experience in software development and infrastructure automation. I combine strong backend expertise (PHP/Symfony, Kotlin) with DevOps skills in Kubernetes, Azure, and Infrastructure as Code. My experience covers the full development lifecycle - from system architecture to performance optimization - achieving up to 85% faster response times in production systems (p95 improved from 10s to 1.5s for one of the product’s modules).

Experience

code

Worksmile Software Engineer

December 2021 – Present

Key Responsibilities:

  • Backend & Architecture: Designed and implemented critical product modules using PHP/Symfony; led key architectural decisions that translated business requirements into technical solutions.
  • Infrastructure & DevOps: Maintained Kubernetes clusters in Azure; developed new services using IaC practices and CI/CD pipelines improving deployment efficiency and reliability.
  • Performance & Problem Solving: Identified and resolved critical bottlenecks; implemented optimization strategies for slow components; developed efficient database solutions and tackled complex engineering challenges across platforms.
PHP Symfony Kotlin Docker Kubernetes Azure GitLab CI Percona Redis RabbitMQ Elasticsearch
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Freelance Android Developer

2020 – 2021

As a Freelance Android Developer, I developed mobile applications based on clients’ technical requirements.

Throughout this role, I completed over 40 projects, gaining extensive experience in various aspects of Android development and strengthening my project management skills.

Java Kotlin Android SDK Firebase REST APIs

Technical Skills

Programming Languages

Primary: PHP/Symfony, Kotlin
Secondary: Python, Java, Go

System Architecture

Monolithic and service-based architecture,
API design, performance optimization,
RESTful services

Infrastructure & Data

Docker, Kubernetes, Azure,
MySQL/Percona, Redis, Elasticsearch, RabbitMQ,
SQL optimization

translate Languages

Ukrainian
Native Speaker
Polish
B2
English
B2
English B2
Polish B2
Ukrainian Native

school Education

school
Warsaw University of Life Sciences

Computer Science, Bachelor's Degree

Technical Projects & Contributions

Kroon link

Developed an AI-powered DevOps agent (backend in Python) for automating cloud infrastructure tasks across clouds.

Python AI DevOps
Earnity link

Built a full-stack influencer-marketing tool (mobile app + CRM with backend in Go) that enables brands and agencies to plan campaigns, manage creators, track deadlines and generate reports in one unified platform.

Go Mobile CRM