Aspiring Software Developer
Sebastian Gondek
from Antwerp, Belgium — building back-ends in Spring Boot, containerised apps many more
Building stuff,
mainly in Java.
Antwerp, Belgium
Java
Spring
ML
Python
Agile
React
SQL
Postgres
Docker
REST
CI/CD
Git
Delivery App
Spring Boot · DDD · Hexagonal
Meeting Assistant
FastAPI · Python· ML
$ docker compose up -d
✔ postgres Started
✔ backend Started
✔ nginx Started
$
Selected work
Projects
Warehouse Management
Inventory system with role-based access (ADMIN/USER), product & supplier management, client-side validation.
Java 21
Spring Boot
Thymeleaf
PostgreSQL
Docker
PathPilot
Smart white cane: Arduino + ESP8266 stream GPS and ultrasonic data to Spring Boot with a live caregiver map.
Java 21
Spring Boot
Arduino
PostgreSQL
WebSocket
Multi-Container Webapp
React, Spring Boot, PostgreSQL and Nginx reverse proxy. Azure deployment with automated SSL via Certbot.
Kotlin
React
PostgreSQL
Docker
Nginx
Meeting Assistant
Multi-agent FastAPI pipeline extracting topics, decisions, action items and per-attendee sentiment.
Python
FastAPI
AI
Pytest
Data Warehouse
Star-schema warehouse with Apache Spark and Neo4j, incremental loads and weather data integration.
Python
PySpark
Neo4j
Kafka
Jupyter
RestaurantApp
Kotlin REST API for guests and reviews, JPA one-to-many with PostgreSQL and H2 profiles.
Kotlin
Spring Boot
Thymeleaf
PostgreSQL
H2
Delivery App
Hexagonal architecture with event-sourced CQRS orders, live courier tracking via RabbitMQ, Stripe payments, and Keycloak auth.
Java 21
Spring Boot
RabbitMQ
Stripe
PostgreSQL
Keycloak
Let's build
something.
Open to new opportunities.