Piotr O.-Senior Full Stack Developer
Check rate
Experience
Senior Full Stack Developer
Grodan
- Supporting and performing a project hand-off to the Grodan team for further development.
- On-site support in USA.
- Continuing work as a developer on the development of the software platform for data driven Precision Growing. This digital innovation gives greenhouse growers smarter insights into the greenhouse, allowing an even more efficient cultivation.
- Business management team in Netherlands.
- Main technologies: Java 8, Spring, Spring Boot, React, MySQL, Docker, Kubernetes, AWS.
Senior Software Developer Team Lead
PSI Polska Sp. z o.o.
Senior Software Developer
PSI Polska Sp. z o.o.
Worked on and wrote Java code for R&D New Products Software Department in PSI AG.
SHC Portal Admin Functionality: Project realized for SHC by PSI Incontrol Sdn. Bhd. Kuala Lumpur, Malaysia with on-site support in Malaysia.
PSIasm: System for production planning, scheduling and manufacturing execution control processes developed from scratch through MVP to final product. Work required control of all product and technical aspects.
Main technologies: Java SE 8, Spring 4, AngularJS, Hazelcast, WSO2, JEE 7 (JPA, CDI, WebSocket, EJB, JAX-RS), Wildfly 10/11, AngularJS/Angular2, SQL, RESTful, WebSocket, JavaFX(RCP), Gradle, Git, RabbitMQ, Docker.
Analyst, Java Developer
PSI Polska Sp. z o.o.
Worked in the R&D Software Department on projects for PSI AG; the created software was used in logistics and industry.
Development of an EAI tool for integration systems: Developed new functionalities and delivered a working integration layer for customers. The tool was mainly used to integrate PSIpenta and SAP systems.
Tools for automated GUI testing applications built with PSIgui internal framework: Created robust, maintainable automated tests based on reliable UI object recognition in Swing-based applications.
Main technologies: Java SE 6, Java EE 7, Groovy, Wildfly, Fest.
.NET, Oracle Developer
Alliance Technology Poland
- Developed, maintained and supported applications for insurance; main application developed with web technologies.
- Created backend standalone applications to control system configuration.
- Main technologies: C#, WPF, ASP.NET, JQuery, WCF, Oracle .NET, MS SQL.
MS SQL Developer
Status-C
- Internship within the project 'The era of engineer' (European Union program).
- Developed, maintained and supported an application for a computer service shop.
- Participated in the design, testing, development and deployment of the application.
- Main technologies: C#, WPF, ASP.NET, JQuery, MS SQL.
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Agriculture, Manufacturing, Information Technology, Insurance, and Transportation.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Information Technology, Product Development, Research and Development, and Quality Assurance.
Summary
Software engineer with 9 years developing robust code for business oriented around industry and production. My goal is to create applications that people use and make their lives simpler.
Skills
- Java
- Javaee
- Spring/Spring Boot
- Sql
- Databases
- Javascript
- React
- C# .Net
- Angular
- Angularjs/Angular2
Languages
Education
Poznan University of Technology
Master of Science, Computer Science / Database Processing Technologies · Computer Science / Database Processing Technologies · Poznań, Poland
Poznan University of Technology
Bachelor of Science, Computer Science · Computer Science · Poznań, Poland
Certifications & licenses
Oracle Certified Professional, Java SE 6 Programmer
APMG International
Statistics
Experience
Global experience
Expertise
Qualifications
Profile
Frequently asked questions
Have questions? Find more information here.
Piotr is based in Poznań, Poland.
Piotr speaks the following languages: Polish (Native), German (Advanced), English (Advanced).
Piotr has at least 16 years of experience. During this time, Piotr has worked in at least 6 different roles and for 4 different companies. The average length of individual experience is 3 years and 8 months. Note that Piotr may not have shared all experience and actually has more experience.
Based on recent experience, Piotr would be well-suited for roles such as: Senior Full Stack Developer, Senior Software Developer Team Lead, Senior Software Developer.
Piotr's most recent position is Senior Full Stack Developer at Grodan.
In recent years, Piotr has worked for Grodan.
Piotr is most experienced in industries like Agriculture, Manufacturing, and Information Technology. Piotr also has some experience in Insurance and Transportation.
Piotr is most experienced in business areas like Information Technology, Product Development, and Research and Development. Piotr also has some experience in Quality Assurance.
Piotr has recently worked in industries like Agriculture.
Piotr has recently worked in business areas like Information Technology and Product Development.
Piotr holds a Master in Computer Science / Database Processing Technologies from Poznan University of Technology and a Bachelor in Computer Science from Poznan University of Technology.
Piotr has 1 certificate: Oracle Certified Professional, Java SE 6 Programmer.
The availability of Piotr needs to be confirmed.
Daily rate distribution
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Average rates for similar positions
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The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.
The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.
Calculated based on our freelancers’ daily rates as of 7 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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