Andrzej Szeląg

Andrzej Szeląg Email and Phone Number

🔴 Designing, implementing, and modernising business applications to support companies and organisations 🔴 Java Developer @ Grupa Helion SA
poland
Andrzej Szeląg's Location
Konin, Wielkopolskie, Poland, Poland
Andrzej Szeląg's Contact Details

Andrzej Szeląg personal email

About Andrzej Szeląg

IT has been my passion for 10+ years. Completing my studies and professional courses, I learned about:🔹computer networks/networking,🔹Microsoft Server Operating Systems (I am a Microsoft Certified Systems Administrator:Security and Microsoft Certified System Engineer:Security),🔹three programming languages: Java, Python and JavaScript.I also am the author of seven IT books for the HELION Publishing House (computer networks, database design and programming, public key infrastructure, failover clustering).For 4+ years I have been developing web-based applications with using Java, Python and JavaScript. Currently, I am a Java Developer which passionate about Java, Spring Framework Ecosystem, Clean Code and SOLID design principles. I have completed:🔹Program Java Developer (SoftwareSkill),🔹Cloud Computing (Lodz University of Technology & HackerU)🔹Spring Boot (SoftwareSkill),🔹Modern Business Applications Java/Jakarta EE (Lodz University of Technology),🔹CS50's Web Programming with Python and JavaScript (Harvard University).Stack I work with:🔹Java/Spring Boot🔹Hibernate🔹Oracle Database and more.IT, learning and development are very important for me. ❤️ 🔴 Contact with me:Phone: +48 608 461 178Email: szelagandrzej@gmail.com

Andrzej Szeląg's Current Company Details
Grupa Helion SA

Grupa Helion Sa

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🔴 Designing, implementing, and modernising business applications to support companies and organisations 🔴 Java Developer
poland
Website:
helion.pl
Employees:
107
Andrzej Szeląg Work Experience Details
  • Umowa Zlecenie/Freelancing
    Java Developer
    Umowa Zlecenie/Freelancing Mar 2020 - Present
    Poland
    ✔ developing web-based applications and website design✔ creating FMS - IT System for Managing Control System Faults on Mining Railways 🟦 Tech Stack: 🔹JEE8🔹JPA/EclipseLink🔹JSF/PimeFaces🔹Maven🔹Lombok🔹Payara Server🔹Oracle Database✔ creating GYM - IT application to collect information about the members of a gym 🟦 Tech Stack:🔹Java 17 / Spring / Spring Boot🔹JPA/Hibernate ORM🔹Maven🔹Lombok🔹PastgreSQL🔹JUnit / Mockito / AssertJ
  • Grupa Helion Sa
    Technical Writer
    Grupa Helion Sa Sep 2005 - Present
    Poland
    ✔I wrote seven IT books for the HELION Publisher about as an advanced technology, like Public Key Infrastructure (PKI) and Failover Clustering (FC)✔Also I wrote books about comupter networks, managing Microsoft SQL Server and Microsoft Windows 7, 8 and 10
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  • Pak Górnictwo
    Supervisor
    Pak Górnictwo Sep 2017 - Present
    Poland
    ✔I manage employee electrical safety at workplace in an Electrical Division✔I managed SYNDIS RV system who cooperated with Windows Server and Oracle Database
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  • Eko-Surowce
    Supervisor
    Eko-Surowce Sep 2014 - Aug 2017
    Poland
    ✔I managed employee electrical safety at workplace in an Electrical Division✔I managed SYNDIS RV network managament system (NMS) who cooperated with Windows Server and Oracle Database
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  • Kwb Konin
    Supervisor
    Kwb Konin Aug 1992 - Aug 2014
    Poland
    ✔I managed employee electrical safety at workplace in an Electrical Division✔I managed SYNDIS RV system who cooperated with Windows Server and Oracle Database🔴 In this period I wrote web business application who helped me to solve a seriously problem with freight wagons in the department when I worked (PHP+Apache HTTP Server+MySQL).
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  • Webproject
    Developer
    Webproject Sep 2005 - Dec 2006
    Poland
    ✔developing web-based applications ✔website design

Andrzej Szeląg Skills

Php Web Development Software Development Network Administration Databases

Andrzej Szeląg Education Details

Frequently Asked Questions about Andrzej Szeląg

What company does Andrzej Szeląg work for?

Andrzej Szeląg works for Grupa Helion Sa

What is Andrzej Szeląg's role at the current company?

Andrzej Szeląg's current role is 🔴 Designing, implementing, and modernising business applications to support companies and organisations 🔴 Java Developer.

What is Andrzej Szeląg's email address?

Andrzej Szeląg's email address is sz****@****ail.com

What schools did Andrzej Szeląg attend?

Andrzej Szeląg attended Lodz University Of Technology, Szkoła Wyższa Im. Pawła Włodkowica W Płocku, Szkoła Wyższa Im. Pawła Włodkowica W Płocku.

What are some of Andrzej Szeląg's interests?

Andrzej Szeląg has interest in Photography, Psychology, Information Technology, Travels.

What skills is Andrzej Szeląg known for?

Andrzej Szeląg has skills like Php, Web Development, Software Development, Network Administration, Databases.

Who are Andrzej Szeląg's colleagues?

Andrzej Szeląg's colleagues are Bogdan Bober, Cris Dias, Dominika Jachimowska, Sarah Jones, Ewa Żądło, Ela Noga, Justyna Sudak-Hartung.

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