Peter Planjsek, Developer in Ljubljana, Slovenia
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Peter Planjsek

Verified Expert  in Engineering

SQL Developer

Location
Ljubljana, Slovenia
Toptal Member Since
November 24, 2021

After winning a local Tetris tournament at age 14, Peter decided to throw himself into computing. Today he is a software engineer with over 20 years of experience in the development of manufacturing, medical, and sports software. His free time is all about cycling, golf, sailing, and spending time with his family.

Data EngineeringEnterprise Resource Planning (ERP)SQLDelphiMicrosoft SQL ServerDatabasesRelational DatabasesETLSQL PerformanceT-SQL (Transact-SQL)Database ArchitectureDatabase DesignAzure SQL DatabasesAzure SQLIIS

Portfolio

Audax d.o.o.
IIS, ASP.NET, Microsoft SQL Server, Databases, Azure SQL, Relational Databases...
E.R.S. Rokada
Delphi, ASP.NET, Microsoft Access, Microsoft SQL Server, SQL, Databases...
University of Ljubljana | Biomechanical Laboratory | Sports Faculty
Delphi, Microsoft SQL Server, Databases, Relational Databases, ETL...

Experience

Microsoft SQL Server - 20 yearsDatabases - 20 yearsRelational Databases - 20 yearsSQL - 20 yearsETL - 20 yearsIT Project Management - 15 yearsHealthcare IT - 5 yearsAzure SQL - 3 years

Availability

Part-time

Preferred Environment

SQL, Delphi, ASP.NET, C#, Azure, Microsoft SQL Server, ETL, Relational Databases, Embarcadero RAD Studio, T-SQL (Transact-SQL)

The most amazing...

...project I've developed is a completely new methodology for diagnosing the dynamics of sprint speed with a laser distance meter.

Work Experience

Software Developer

2017 - PRESENT
Audax d.o.o.
  • Designed a webserver for sending text messages. I created the system and developed the front and back ends. The solution consists of an SQL server database, administration website, APIs for data manipulation, and text-sending logic.
  • Optimized large SQL server queries, bottlenecks, and errors.
  • Maintained and administered several back-end services.
Technologies: IIS, ASP.NET, Microsoft SQL Server, Databases, Azure SQL, Relational Databases, Healthcare IT, Embarcadero RAD Studio, ETL, Database Performance, Query Optimization, SQL Performance, T-SQL (Transact-SQL), SQL DML, Performance Tuning, Database Architecture, Relational Database Design, Database Design, DB, Database Schema Design, MySQL

Lead Developer

2000 - 2020
E.R.S. Rokada
  • Developed an enterprise resourcing planning (ERP) and a manufacturing execution system (MES) software used by Slovenia's most significant manufacturing companies.
  • Oversaw the entire software's lifecycle, from development to implementation.
  • Managed the company's product portfolio for software products.
Technologies: Delphi, ASP.NET, Microsoft Access, Microsoft SQL Server, SQL, Databases, IT Project Management, Relational Databases, Embarcadero RAD Studio, ETL, Database Performance, Query Optimization, SQL Performance, T-SQL (Transact-SQL), SQL DML, Performance Tuning, Database Design, DB

Software Developer | Consultant | Data Analyst

2013 - 2016
University of Ljubljana | Biomechanical Laboratory | Sports Faculty
  • Developed a new software and methodology for diagnosing the dynamics of Sprint speed.
  • Participated as a software developer and consultant in the team that won an Olympic gold medal.
  • Developed many sports diagnostics software products, such as rowing, 3D kinematics, heart rate monitoring, 3D accelerator, etc.
Technologies: Delphi, Microsoft SQL Server, Databases, Relational Databases, ETL, T-SQL (Transact-SQL), SQL DML, Database Architecture

Database Developer, Admin, and Technical Lead

2008 - 2011
Football club Interblock Ljubljana
  • Developed a solution for the football match analysis and integrated it with the STATS (SportVU) player tracking system.
  • Acted as the technical project lead and headed the analysis team (four operators).
  • Handled product development, consultation, and presentation.
Technologies: SQL Server DBA, Database Development, MySQL, Database Design

Risp ERP Software Suite

https://www.ers-rokada.si/rispsql-planiranje-proizvodnje.html
An enterprise resource planning software used for planning in some of the biggest manufacturing companies in Slovenia. I was head of development and lead developer for the product. Also, I designed and developed the main planning algorithms with analytics and reporting infographics.

SMS Web Server

Designed a webserver for sending text messages through the national medical ordering system.

I designed the system and developed the front and back end. The solution consists of an SQL server database, administration website, APIs for data manipulation, and text sending logic.

Sprint Speed Diagnostics Using the Ldm-301 Laser Distance Meter

http://www.dlib.si/stream/URN:NBN:SI:DOC-4F6KMQEY/940b04f0-f4d0-4b11-979a-4c0ba8375959/PDF
Coaches need high-quality information to make effective decisions in sprint training. It is impossible to acquire high-quality information about a sprinter's form and training efficiency without complex integrated biomechanical methods.

The motion control and the biomechanics laboratory developed a completely new method for diagnosing the dynamics of sprint speed. The laser distance meter enables key time parameters of speed to be identified in individual sprint zones.
2016 - 2018

Master's Degree in Managment and Informatics

Ljubljana School of Business - Ljubljana, Slovenia

1997 - 2001

Bachelor's Degree in Sports Management

University of Ljubljana | Sports Faculty - Ljubljana, Slovenia

1993 - 1997

Technical Degree in Computer Programming

Secondary School of Electrical and Computer Engineering (SERS) - Maribor

Tools

Microsoft Access, Visual Studio

Paradigms

ETL, Database Design, Object-oriented Programming (OOP), Database Development

Languages

SQL, Delphi, T-SQL (Transact-SQL), SQL DML, C#

Frameworks

ASP.NET

Storage

Azure SQL, Microsoft SQL Server, Databases, Relational Databases, Database Performance, Azure SQL Databases, SQL Performance, Database Architecture, DB, MySQL, SQL Server DBA

Platforms

Azure

Other

Query Optimization, Performance Tuning, Enterprise Resource Planning (ERP), Data Engineering, Borland Database Engine (BDE), Relational Database Design, Database Schema Design, IIS, Process Design, Healthcare IT, Coaching, IT Project Management, Artificial Intelligence (AI), Embarcadero RAD Studio, Data Cleansing, Planning

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