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I am a full-stack software engineer with extensive experience across Java, PHP, and .NET/C#. I enjoy translating complex requirements into scalable, clean-code software and collaborating with cross-functional teams to drive project success. I stay curious about new technologies and strive to improve operational efficiency through thoughtful architecture and practical implementation. My background spans education tech, manufacturing, and logistics, where I’ve led UI/UX improvements and backend optimizations for high-volume systems. I’m committed to continuous learning and delivering robust solutions that balance quality, performance, and maintainability.…I am a full-stack software engineer with extensive experience across Java, PHP, and .NET/C#. I enjoy translating complex requirements into scalable, clean-code software and collaborating with cross-functional teams to drive project success. I stay curious about new technologies and strive to improve operational efficiency through thoughtful architecture and practical implementation. My background spans education tech, manufacturing, and logistics, where I’ve led UI/UX improvements and backend optimizations for high-volume systems. I’m committed to continuous learning and delivering robust solutions that balance quality, performance, and maintainability.

Sebastian Aleksander Klimek

Web Developer, Developer, Front-End Developer, +3

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I am a full-stack software engineer with extensive experience across Java, PHP, and .NET/C#. I enjoy translating complex requirements into scalable, clean-code software and collaborating with cross-functional teams to drive project success. I stay curious about new technologies and strive to improve operational efficiency through thoughtful architecture and practical implementation. My background spans education tech, manufacturing, and logistics, where I’ve led UI/UX improvements and backend optimizations for high-volume systems. I’m committed to continuous learning and delivering robust solutions that balance quality, performance, and maintainability.…I am a full-stack software engineer with extensive experience across Java, PHP, and .NET/C#. I enjoy translating complex requirements into scalable, clean-code software and collaborating with cross-functional teams to drive project success. I stay curious about new technologies and strive to improve operational efficiency through thoughtful architecture and practical implementation. My background spans education tech, manufacturing, and logistics, where I’ve led UI/UX improvements and backend optimizations for high-volume systems. I’m committed to continuous learning and delivering robust solutions that balance quality, performance, and maintainability.

Available to hire

I am a full-stack software engineer with extensive experience across Java, PHP, and .NET/C#. I enjoy translating complex requirements into scalable, clean-code software and collaborating with cross-functional teams to drive project success. I stay curious about new technologies and strive to improve operational efficiency through thoughtful architecture and practical implementation.

My background spans education tech, manufacturing, and logistics, where I’ve led UI/UX improvements and backend optimizations for high-volume systems. I’m committed to continuous learning and delivering robust solutions that balance quality, performance, and maintainability.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Polish

Fluent

Work Experience

Software Solutions Developer at MaxTop Bakery

January 1, 2024 - January 1, 2025

UI/UX transformation: redesigned the core desktop interface to support multi-threaded task input, enabling frontline staff to handle multiple data streams simultaneously and reducing interface latency. Workflow optimization: streamlined data entry system to eliminate redundant steps, reducing manual entry time and error rate. Full-stack maintenance: developed and deployed system updates to ensure stability during high-volume production hours.

System Test Engineering at Johnson Electric

January 1, 2019 - January 1, 2021

Led software-based quality assessments of drivetrain components for industrial appliances, utilizing automated testing suites to identify performance bottlenecks and streamline motor selection for production.

Android Support/Developer at Amazon (via Randstad)

January 1, 2022 - January 1, 2023

Optimized mission-critical Android warehouse applications by developing feature enhancements that streamlined inventory tracking and increased operational throughput. Resolved UI/UX bottlenecks within proprietary logistics software, resulting in improved scanning accuracy and reduced processing time.

System Test Engineer at Johnson Electric

January 1, 2019 - January 1, 2021