# Rafal Krajewski

> Software Engineer

Location: San Francisco, California, United States
Profile: https://flows.cv/rafal

Thorough knowledge of software development technologies, built from hands-on professional experience, including application design, development, testing, deployment and maintenance. Built scalable systems: from monolithic, database-centric to large microservices and distributed solutions connected with message bus and deployed to clouds. Built from scratch and maintained large, highly available Internet oriented applications. Over 20 years of experience as a software engineer and developer of Information Systems. Proven track record in delivering applications on time and on budget through disciplined processes.


SPECIALITIES 
Java, SQL/NoSQL/Database Design and Modeling, Functional Programming, OOA/OOD/OOP, UML, Web/App/DB Servers/Messaging Servers, REST/JSON/XML, HTML/CSS, Javascript, Open Source Technologies and Frameworks, SaaS, Cloud Computing, AWS.

SKILLS
Methodologies: Functional Programming, OOA/OOD/OOP, UML, Software Design Patterns, Enterprise Integration Patterns.
Programming Languages: Java, SQL, JavaScript, Unix Shell Script, Python, C++, C. Operating Systems: macOS, MS Windows, Unix/Linux.
Databases: MS SQL Server, MySQL, PostgreSQL, Redis, DynamoDB, Couchbase. Technologies: Spring, Spring Boot, JPA, REST, HTML, CSS, ReactJS, JSON, XML, HTTP, JUnit, Karate test-automation framework, multi-threaded and concurrent programming, database programming.
Web/App Servers: Jakarta Tomcat, JBOSS, Resin, Apache, Nginx.
Messaging Servers: Kafka, Kinesis, JMS.
Tools: IntelliJ, Visual Studio, Eclipse, Maven, Nexus, Gradle, Git, Docker, Kubernetes, Helm, Jenkins, Liquibase, SonarQube, PMD.
Other: Microservice Oriented Architecture, AWS (EC2, ECS, EKS, RDS, S3, IAM), Open Source Technologies and Frameworks, REST, TDD, SaaS, Cloud Computing, Messaging and Event-Driven Systems, Distributed Systems, Data Warehouses, CI/CD.

## Work Experience
### Software Engineer @ Mendaera, Inc.
Jan 2024 – Present | San Mateo, California, United States

### Technical Lead @ Avail Medsystems
Jan 2020 – Jan 2023 | Palo Alto, California, United States

### Principal Engineer @ YapStone, Inc.
Jan 2011 – Jan 2020 | Walnut Creek, California, United States

### Mgr, Software Development @ Berkeley HeartLab, Inc. (CELERA Business)
Jan 2006 – Jan 2011

### Sr. Software Engineer @ Satmetrix
Jan 2005 – Jan 2006

### Java Developer @ Logitech
Jan 2005 – Jan 2005

### Sr. Software Engineer @ Premiere Global Services (form. Xpedite)
Jan 2003 – Jan 2005

### Sr. Application Engineer @ Captaris (form. Mediatel)
Jan 1996 – Jan 2003

### Research Assistant @ Institute of Theoretical and Applied Computer Science of Polish Academy of Science
Jan 1991 – Jan 1995 | Gliwice, Śląskie, Poland


## Education
### Master degree in Computer Science
The Silesian University of Technology


## Contact & Social
- LinkedIn: https://linkedin.com/in/rafal-krajewski-063255

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Source: https://flows.cv/rafal
JSON Resume: https://flows.cv/rafal/resume.json
Last updated: 2026-04-10