From: Poland
Location: Poznań
On Useme since 7 January 2025
About me
I am a highly experienced Database and Backend Developer with over 17 years in the IT industry, dedicated to building performant and scalable systems. My primary area of expertise is the Oracle DB ecosystem, where I specialize in designing, implementing, and optimizing data structures and complex SQL queries. I am proficient in developing core business logic using PL/SQL (stored procedures, functions, packages). Key Technical Skills include: • Programming & Frameworks: Strong command of Java (Spring Boot), Python, and experience with REST, and SOAP. • Databases: Experience extends beyond Oracle DB (including APEX) to MariaDB, PostgreSQL, and MongoDB. • Tools & Systems: Proficient in DevOps tools such as Docker, Jenkins, Git. Throughout my career, I have been instrumental in various complex projects, including developing the application layer responsible for collecting and processing real-time data from thousands of IoT devices (BMS systems), steering the expansion of sophisticated ERP systems.
Categories
CV / Résumé
Feb 2025 - Now
Database developer
Yes Biżuteria
● Setting the direction for ERP system expansion - Unit4 - Teta, Comarch - Altum, Optima ● Programming business logic on the database side
Apr 2023 - Dec 2024
Senior software developer
Mebway
● Designing and developing a marketplace functionality that enables the configuration and purchase of furniture tailored to individual customer needs.
Apr 2022 - Now
Database developer
CCC group
● Designing, implementing, and optimizing data structures and SQL queries in the Oracle Database environment. ● Creating and modifying stored procedures (PL/SQL), functions, views, and packages to support business processes.
Jan 2013 - Mar 2022
Backend developer
Proeko
● Creation of a DB layer supporting the operation of the BMS system for monitoring energy consumption and controlling smart buildings. ● Creation of an application operating on real-time data from thousands of IoT devices.
Aug 2007 - Nov 2012
Software developer
DMS
● Design and implementation of ERP applications in PHP, MySQL
Portfolio
BMS
BMS (Building Management System) for monitoring energy consumption and controlling smart buildings. I developed an application layer that processed data from thousands of IoT devices in real time.
ERP
The project focused on database development. I was responsible for designing, implementing, and optimizing data structures and SQL queries in the Oracle Database and APEX environments.
Marketplace
The project for a furniture industry startup involved designing and developing a marketplace functionality that allows customers to configure and purchase furniture tailored to their individual needs using an online configurator.