Paweł Chorążyk

I'm a highly autonomous software engineer used to being involved in every phase of software development, including collecting requirements, designing architecture and interfaces, creating tests, writing code, deployment and support. I always try to understand the business context and pursue the high-level goals of the project.

While I'm the most comfortable creating back-end Java applications, I've also created several front-ends using various JavaScript frameworks. I'm able to work with simple Scala code too and always eager to work on various DevOps tasks, like writing Bash/Python/NodeJS scripts, setting up continuous integration servers or creating Docker images. I have a decent knowledge of general IT topics such us multithreading and networking.

Experience

Ocado Technology (since September 2015, 4 years)
- Senior Software Engineer (since September 2017)
- Software Engineer II (September 2015 – August 2017)
- Order fulfillment coordination system (since July 2018)
  - Working on a distributed, cloud based system that coordinates fulfillment of orders
  - Java, Spring Boot, Hystrix
  - JavaScript, Node.js, React.js, Redux
  - AWS: DynamoDB, RDS, ElastiCache (Redis), ECS
  - Build and deployment using Gradle, Gitlab CI, Docker
- Warehouse management system (September 2015 – June 2018)
  - Working on a distributed, fault-tolerant, reactive, high-level warehouse management system
  - Java, Spring Boot, Hystrix
  - Scala, Akka, Cassandra, event-sourcing
  - JavaScript, ReactJS, AngularJS
  - Build and deployment using Maven, Jenkins, CoreOS, Docker
Compact Solutions Polska Sp. z.o.o. (October 2013 – August 2015, 2 years)
- Trainee Associate Software Engineer (October 2013 – March 2015)
- Associate Software Engineer (April – August 2015)
- Java, RMI, Maven
- Spring, Hibernate, JPA
- Tomcat – configuring development servers
- Jenkins – creating and managing jobs that run tests and deploy application into development servers
- git – taking part in repository migration from SVN, helping to introduce "feature branch workflow"
- coordinating team work
- creating interview questions and conducting job interviews
- one of four "Most Valuable Player" awards in 2014
Compact Solutions Polska Sp. z.o.o. — internship (July – September 2013, 3 months)
- data visualization
- Java, JavaScript, jQuery, require.js, HTML5 Canvas
Comarch S.A. — internship (July – September 2012, 3 months)
- RTCE webapplication development
- Java, Spring Framework, JavaServer Faces
- JavaScript, jQuery

Small Achievements

A question on StackOverflow that resulted in a JVM bugfix
LambdaFromString
- an open source library available on github and Maven Central
- generates a Java 8 functional interface implementation ("lambda") from a String object (containing code) at runtime
Open source contributions to the Intellij Scala Plugin [1] [2] [3] (Scala) and Signal Private Messenger [1] (Java/Android)
A blog with more than one post ;-)

Education

Computer Science
- Bachelor of Science (September 2010 – January 2014)
- Master of Science (March 2014 – April 2016)
- Faculty of Computer Science, Electronics and Telecommunications
- AGH University of Science and Technology, Kraków
Volunteer computing platform utilising web browsers
- MSc thesis
- Java8, jOOQ, Spring, Maven
- JavaScript, ReactJS, webworkers
- testing performance on Amazon EC2 using Amazon SDK for Java
Android service for distributed computing
- BSc thesis
- dynamic class code compilation and instantiation at runtime
- creating simple Android applications