CONTACT INFO

Wojciech Peisert
Gdynia
Poland		 E-mail:
wojtekp@sauron.pl
Phone:
+48.783390731

SUMMARY

Professional Profile A software developer with a background in mathematics and theoretical information science.
  • 24 years of commercial experience in designing and developing web based software (mainly PHP) including integrations with external services and systems.
  • 5 years of experience in creating financial and sales software.
  • 6 years working experience in software development for financial institutions.
  • 2 years of Technical Leader role in two projects.
  • 7 years of development of own projects in the area of Machine Learning, Neural Networks, GenAI.
  • PhD in Mathematics.
  • A member of Mensa Poland.
Target While not limited to, I am particularly interested in emerging technologies and joining an R&D team working on projects in one of the following fields: Artificial Intelligence, Neural Networks, LLMs, Reinforcement Learning, Robotics.

SKILLS

PHP PHP 7/8, Laravel 6-10, Symfony 3/4, Pimcore 5/6/X, REST API, composer, unit tests, spec
Docker docker, docker-compose
Linux linux environment, bash
Storage MySql, PostgreSql, sqlite, Elasticsearch, Redis
Tools git, JIRA, CI/CD (gitlab, github based), Confluence
ML/AI Python 3, Keras, Tensorflow, Deep Neural Networks, CNN, RNN, RL, LLM, RAG
Frontend AngularJS, Angular

EXPERIENCE (selected)

10/2021 - 06/2025
Sygnity SA		 Development, maintenance, upgrade of form data processing system.
Linux, Docker; Laravel 6-9, Lumen 9; postgreSQL; angularJS; angular; REST API; 3rd party services integration

11/2020 - 02/2022
Marcopol Sp. z o.o.		 Development, maintenance and upgrade of a Pimcore 6/X based system.

09/2014 - 10/2020
Divante Sp. z o. o.		 Senior PHP Software Developer working in Linux environment (Ubuntu). Pimcore 4, 5, 6. Projects for big, international companies. Pimcore based solutions including integrations with external systems like ERPs, web2print, workflow, data publication channels, integration with Magento or other e-Commerce systems.
Technical leader role in two projects.

04/2020 - 07/2020
xBusiness GmbH		 Telegram chat bot design and development. Laravel, BotMan, mySQL, Elasticsearch, Exist.io integration, Highcharts, CI & CD.

03/2006 - 08/2014
freelance		 Software development in the web technologies area, including: PHP, mySQL, HTML, Javascript, SOAP, Smarty, XML.

01/2005 - 02/2006
Siemens Poland Sp. z o. o.		 Software Developer in Linux Enviroment (Debian). Development of middleware for digital television. Working DVB, MPEG, SI knowledge. OOP in C++ including STL, Boost and design patterns. Projects in UML. Creating and using documentation in English.

09/2002 - 10/2004
Siedmiorog Publishing House		 Creation, maintenance and development of the company's internet shop (all but graphics), accounting and sales software integration, integration with supplier's systems, implementation of advanced search engine FactFinder(tm).

10/1999 - 9/2000
Polish Academy of Science		 Scientific research on the field of graph theory and theoretical information science.

11/1995 - 9/1999
NAVO Sp. z o. o.		 C++ software developer. Desktop applications for companies (sales, finances, accounting, production). Windows, C++, Sybase, MS SQL.
8/1993 - current
SAURON		 The owner of a small IT company. Currently concentrated on web development. Database and software design - mainly in PHP and mySQL. Domain registration and hosting services.


EDUCATION

08/2023 - 10/2023
Coursera
(deeplearning.ai)

 Generative AI with Large Language Models (view certificate)

01/2020 - 04/2020
Coursera (University of Alberta, Alberta Machine Intelligence Institute)

 Reinforcement Learning Specialization
(all courses and the whole specialization finished successfully with certificates)
  • Fundamentals of Reinforcement Learning
  • Sample-based Learning Methods
  • Prediction and Control with Function Approximation
  • A Complete Reinforcement Learning System (Capstone)
1/2018-3/2018
Coursera
(deeplearning.ai)

 Deep Learning Specialization
(all courses finished successfully with certificates)
  • Neural Networks and Deep Learning
  • Structuring Machine Learning Projects
  • Improving Deep Neural Networks: Hyperparameter tuning, Regularization and Optimization
  • Convolutional Neural Networks
  • Sequence Models
7/2017
Coursera (University of Washington)

 Computational Neuroscience (finished with a certificate)

4/2017
Coursera (Stanford University)

 Machine Learning (finished with a certificate)

2/2000
University of Wroclaw

 PhD in Mathematics
publication: All self-complementary symmetric graphs (2001)
PhD thesis published in Journal of Algebra - the best periodical in the Algebra field.

6/1998
University of Cambridge

 First Certificate in English

6/1996
University of Wroclaw		 Master's Degree
publication: Direct product and uniqueness of automorphism groups of graphs (1999)
Master's degree thesis was published in Discrete Mathematics - a well-known journal. It also was awarded in the competition for the best Master's degree thesis in any subject of mathematics.


Languages
Language Proficiency Level
English First Certificate in English Grade B
Good understanding of technical documentation
Level B2/C1
Polish Native