Marcin Szpak
Precision-driven Java Developer for enterprise-scale backend applications
Full time/Project based/Part time
Hybrid/Remote
Java Developer with 8 years of experience in backend development for the banking and industrial sectors. Specialized in EMV 3-D Secure 2 cardholder authentication...
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My Career Journey
1/3
SII
Java Developer
May 2022 - Present | 4y 4m
Katowice, PL
Developed and maintained microservices-based EMV 3-D Secure 2 authentication platform and modular monolith cost-planning/expense-reporting application. Analyzed business requirements, executed manual tests,...
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Koncept Informatyka
Java Developer
Sep 2018 - Mar 2022 | 3y 6m
Chorzów, PL
Developed a Java-based vehicle-tracking application for energy-sector clients with emphasis on quality assurance, set up AWS-based testing environments, automated deployments using Jenkins, managed schema...
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Kalmet S.A.
Mechanical Engineer
Apr 2015 - Aug 2018 | 3y 4m
Gliwice, PL
Developed technical documentation for welded transformer-tank constructions, verified and proofread technical drawings, prepared material demand specifications, processed them in Impuls ERP, and maintained...
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Complex Problem Solving
Analytical Thinking
Detail Oriented
Communications
Quality Assurance
Prioritization
My values
Problem Solving
Quality
Open Communication
Respect
Education
Silesian University of Technology
Mechanics and Machine Design (Specialization: Computer-Aided Design of Electromechanical Systems)
2013
Silesian University of Technology
Mechanics and Machine Design (Specialization: Design, Operation and Maintenance of Machines)
2011
Certifications & Qualifications
AI training curriculum (12 courses): AI Fluency, Claude Code 101 & in Action, Building with the Claude API, Model Context Protocol (Introduction & Advanced Topics)
Anthropic2026
Java – Basic Course
SDA2018
Language(s) I speak
English
Fluent
Polish
Fluent