Software Engineer, Full-stack Developer

Roman Koiš

Software Engineer, Full-stack Developer

Full-stack developer with strongest skills in Python (5/5) and Process Optimization (5/5). Built products from lab test analysis tools and AI-powered phone call systems (GrandpaCheck) to virtual laboratory experiments and enterprise survey platforms (PulseShape). Masters-level software engineering graduate from STU FEI.

#SoftwareEngineering#Integration#ApplicationArchitecture#SystemIntegration#AI#LLM#MachineLearning#API#Docker#C##Java#Python#Js#Ts#go#SQL#MSSQL#PostgreSql#PhP

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Skills & Competencies

System Architecture – SOA, Multichannel, Integration Platforms

APIs & Integration – REST, middleware design

Data Architecture

Programming – Java (android apps, backend services)

Programming – .NET / C# (backend services)

Programming – SQL (PostgreSQL, SQLite)

Programming – Python (backend services, automation scripts, machine learning)

Programming – Go (backend services)

Programming – JavaScript / TypeScript (backend services, frontend, tools)

Programming – PHP (backend services)

AI/Automation – enterprise use cases

Version Control & Collaboration – Git, GitHub/GitLab

Problem-solving

Process Optimization – identifying bottlenecks and improving workflows

Teamwork

Experience

Developer

·Client zone @ Wezeo2023–2024

Developing tool used to analyze results from lab tests. Technologies: PhP, Vue.js, MySQL, Docker.

Developer

·GrandpaCheck @ Instarea2024–Present

GrandpaCheck takes care of the safety and well-being of your elderly loved ones. The app automatically makes phone calls at regular, customizable intervals, gently checking that everything is okay. Developed a communication app that enables scheduling, managing, and conducting calls with proactive outreach capabilities. Technologies: Python, Vue.js, PostgreSQL, Docker, RabbitMq, Nginx, OpenAI Realtime API, Twilio.

Developer

·Virtual laboratory @ Slovak Technical University2024–Present

Developed an app for virtual experiments on mechatronics 3D models. Technologies: Vue.js, Python, Node.js, Laravel, MySQL.

Full-stack Developer

·PulseShape @ Instarea2024–Present

Developed an app delivering actionable team insights to improve collaboration and performance. AI-driven company surveys & interviews (VUB). Technologies: Vue.js, Python, OpenAI Realtime API.

Full-stack Developer

·Dealership Management System @ Instarea2024–Present

Developing enterprise SaaS architecture, integration governance, and AI-led systems. Automotive information system and CMS for used car dealers (Autoniq). Technologies: C#, Vue.js, PostgreSQL, Python, Docker, RabbitMq, Linux, Nginx.

Education

Software Engineering (STU FEI) Ing. – Masters level

Certifications

English (Fluent) 4/5

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