I worked on the development of the open-source AdminJS library as a front-end developer.

I created an SPA for clients and partners of the company using React, Redux, and other JavaScript libraries.

I have created a dedicated web application (SPA + backend) for managing contracts and agreements between the hospital and suppliers of goods and services. I participated in the implementation of the Point of Collection module of the AMMS system in hospital departments.

The contract with Angelius Provita Medical Center included the creation of dedicated software to support the work of outpatient clinics.The web application, working on a local network, covered the following areas with its functionality:patient record-keeping, medical documentation management, and marketing program managementoutpatient clinic management, interview registration, medical data, and medical procedure information managementdiagnostic laboratory management: referrals, presentation of results in HL7 CDA formatdata exchange with the Cobas Roche diagnostic laboratory deviceintegration with the Diagnostyka IT system (sending orders and receiving results)billing for medical visits, commission calculation, fiscal printer management, sales, VAT, and CIT registry managementcash, card, transfer, and pre-payment payment managementmanagement of medical staff time and visit registrationmanagement of the waiting room queue systemAs CM Angelius centers specialize in infertility treatment, the in vitro laboratory management is a significant element of the system: genetic material management, medical procedure management, and medical documentation generation.The software was developed using Javascript, PHP, and PostgreSQL technology.

Medical order module for comprehensive hospital management software for m-Soft companySoftware for managing municipal roads for Iwonicz-Zdrój Commune OfficeEmployer evaluation software for Digital Art Division (using PHP, MySQL technology)File repository software for Tres companyConference management application for Conferis companyOnline store for Stogar companyDatabase application for managing sponsors and running ecological campaigns for Gaja Club

I participated in the implementation of several modules (Project Costing, Contracts, General Ledger) of the PeopleSoft system for the needs of the controlling department of the PGNiG branch in Mazovia. My work included:analysis of the department's needs and requirementsoptimization of processes and their implementation in the systempreparation of specifications for programmers to create additional functionalitiessoftware testing and implementationuser trainingpreparation of specialized reports based on data from the Oracle database.

I worked on implementations of ERP systems (Impuls BPSC and SAP Business One)pre-implementation analysis of customer needssystem parameterization according to requirementspersonnel trainingspecialized reports based on database data

I worked as a production manager for ventilation systems. I designed components using CAM software. I designed a production support system and implemented it at Alnor in collaboration with QBS Software, the software executioner.