WarsawJS speaker:
Blog: rzymek.github.io, medium.com/@rzymek
GitHub: contributions, profile
StackOverflow: profile (9K reputation), StackExchange
LinkedIn
I am a truly passionate and versatile engineer with 20 years of commercial experience. Revolving around Web & Java technologies mostly. Love to bite into the difficult problems.
Focused on writing clean, readable and testable code. I always ask myself whether the stuff I've just written will make sense to someone a year from now.
Sharing knowledge comes truly natural. I was a speaker at 2 WarsawJS meetups [1] [2] and I've hosted over 30 internal workshops covering topics like: Docker, Java, React, Redux, Firebase, Typescript, webpack, software engineering, git, bash, etc.
Proven ability to deliver high-quality features, improve product quality, and contribute to team efficiency. Strong problem-solving skills, proactive approach, and commitment to continuous improvement. Experienced in incident response, code reviews, and mentorship. Demonstrated expertise in JavaScript, React, SQL, and various testing frameworks. Key Achievements:
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Led the implementation and delivery of various UI features, including Notebook Multi File project & Git integration, Streamlit Git integration UI, and Single Task Graph Execution modal.
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Improved product quality through thorough code reviews, identifying and fixing bugs, and enhancing test coverage (e.g., unified Storybook setup, Playwright e2e CUJs).
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Contributed to infrastructure improvements by refactoring build processes, optimizing test speeds, and addressing import cycles in the codebase.
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Actively participated in incident response, troubleshooting production issues, and providing timely support to team members.
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Mentored junior engineers, onboarded new team members, and facilitated team retrospectives and planning sessions.
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Presented at industry meetups (WarsawJS), promoting the company and attracting recruitment leads.
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Proactively identified and addressed potential security vulnerabilities and contributed to security reviews.
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Demonstrated strong collaboration skills by working effectively with cross-functional teams, including Product, Design, and other engineering teams.
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Showed flexibility and adaptability by switching teams and focusing on different areas based on project needs (e.g., Applica integration, SnowGIT UI, Notebooks).
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Organized team-building events and contributed to a positive team culture.
Software house focused on providing high quality software my means of pair programming, TDD and DDD.
- Working with a internation team on distributed systems proces modeling (BPMN) and testing platform. Kubernetes, Angular, Spring Boot.
- Greenfield webapp using Spring Boot, Mongo Atlas, AWS EC2, Docker, React, Jest, Cypress.
- Fitnes data visualization site. AWS Beanstalk & Cloudfront, Nest.js, node.js, React, Typescript, Circle CI.
Leader of company's Web Competency. Responsible for keeping the company up to date with current good practices related to web application development. Organizing and hosting tech workshops. Autonomously architecting and developing web and mobile applications in Spring Boot, React or Angular 2. Introduced Docker based DevOps with Prometheus monitoring for several projects. Lately tech lead on web segment of a strategic data warehouse solution running on Azure Cloud services.
Side project where I'm responsible for the whole solution. Back office single page app in React with Typescript running on Google Cloud's Firebase PaaS. Jest for unit tests, Gemini for end-to-end regression smoke tests.
Responsible for design and implementation of web and integration applications. Running on JBoss, IBM WebSphere and Wildfly application servers. Worked on client facing insurance portal, contract management internal international system, JMS and webservices integration product. Introduced and maintained Jenkins based DevOps.
For further information checkout out my LinkedIn profile.
- Master in Computer Science (mgr.inż.). MINI, Politechnika Warszawska. 2005.
- English: fluent - Cambridge English: Advanced (CAE)
- German: communicative
- Polish: native
I hereby give consent for my personal data included in the job offer to be processed for the purposes of recruitment under the Data Protection Act 1997 (Dz. U. no. 133, item 883).
Wyrażam zgodę na przetwarzanie moich danych osobowych zawartych w niniejszej ofercie pracy dla potrzeb niezbędnych do realizacji procesu rekrutacji (zgodnie z Ustawą z dnia 29 sierpnia 1997 roku o ochronie Danych Osobowych, Dz. U. Nr 133 Poz. 883).
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