Jan Bernitt

I like the tricky bits. Doing more with less code. Being expressive. I enjoy cleaning up too.
Thinking and designing solutions that are minimal, flexible and maintainable.

See Also:: Åseda, Sweden
+46 72 238 95 63
jaanbernitt@gmail.com
http://jbee.github.io/
https://github.com/jbee

Projects
`jbee/json‐streama`	`Float(java, json, java‐stream)` Jan 2022 — Current Easily process JSON input streams as if they are mapped to an object graph with the performance characteristics of actual stream processing.
`dhis2/json‐tree`	`Float(java, json, json‐path‐expression, unit‐testing, rest)` Nov 2021 — Current A lazily parsed JSON object tree library. Navigate JSON documents as virtual object graphs. Handles even huge documents fast and well as only the paths extracted are materialized. A excellent tool for asserting JSON documents returned by a REST API.
`jbee/lex`	`Float(java, pattern‐matching, interpreter, bytecode)` Nov 2017 — Current Linear expressions ‐ simple and fast pattern matching
`jbee/purejin`	`Float(java, declarative, dependency‐injection)` Feb 2013 — Current Lightweight Java dependency injection library that purely uses refactoring safe code for bindings ﴾no annotations, no xml, ...﴿ with no further dependencies.

Experience
`DHIS2`	`SoftwareDeveloper(java, spring, hibernate, postgresql)` Jan 2021 — Current DHIS2 is the world's largest health information management system — developed through global collaboration led by UiO
`Payara Services Ltd.`	`SoftwareDeveloper(java, application‐server, jakarta‐ee, payara, payara‐micro, jquery, css, javascript, chart.js)` Jan 2019 — Dec 2020 Contributing to core server development as a supplier. Recently focussing on server monitring building Payara's Monitoring Console.
`Hazelcast`	`SoftwareDeveloper(java, hazelcast, spring, jetty, json, jmx, rest)` Jan 2018 — Dec 2018 Contributing to hazelcast's cluster monitoring web application called hazelcast management center.
`Contribe`	`SoftwareDeveloper(java, tomcat, spring, sql)` Oct 2016 — Mar 2017 Supporting a larger agile team developing and maintain a SaaS salary management system as a consultant.
`Contribe`	`SoftwareDeveloper(java, angular, websphere, rest, html, css)` Sep 2015 — Apr 2016 Consultant member in a smaller agile team redesigning web services for the Swedish health insurance system.
`IST International Software Technology`	`SoftwareDeveloper(java, spring, tomcat, rest, soap, soa, rabbitmq, datomic, datalog, sql, json, xml)` Feb 2012 — Jun 2015 Member of a larger agile team developing next‐gen SaaS school administration platform for Scandinavia.
`Hypoport AG`	`SoftwareDelevloper(java, tomcat, wicket, jetty, hibernate, mongodb, sql, html, css, jquery)` Jan 2010 — Dec 2011 Lead developer in a small agile team responsible for development, maintenance and operation of a web platform that allows to compare and apply for financial products online.
`freiheit.com`	`SoftwareDeveloper(java, tomcat, jetty, spring, hibernate, tapestry, struts2, jsp, couchdb, postgresql, html, css, jquery)` Dec 2008 — Dec 2009 Member of different smaller and medium sized teams developing SaaS solutions for gaming, e‐commerce and community web platforms using open source software.
`freiheit.com`	`SoftwareDeveloperInternship(java, spring, swing, awt, swt, docbook)` Mar 2008 — Aug 2008 Besides getting a peek into project work I worked on a internal documentation tool used to write offers and document products.

Education
`University of applied sciences Wedel`	`DiplIng(FH)` in Technical Computer Science Combined software and hardware program including techings and exercises in various languages and styles of programming. My chosen focus area was software design and OO programming in java.

Open Source "Credentials"
`dhis2/dhis2-core`	2021 — Current Top contributer over the employed timespan for DHIS2 server (`dhis2` project's main repo)
`payara/Payara`	2019 — 2021 Top contributer over the employed timespan for Payara Server (`payara` project's main repo)
`payara/monitoring-console`	2019 — 2021 Top contributer over the employed timespan for Payara Monitoring Console (solely developed by me)

Other Snippets
`junit-team/junit5`	`assertInstanceOf()` 2021 A small assert for a man, a giant leap for junit5 ;)
`eclipse/microprofile-metrics`	`MetricRegistry()` 2020 Main API of MP Metrcis became an `interface` and got some additional methods for convinience.