Norbert R.

Full Stack Developer

380 dollar
Freelancer
4 years
Warsaw, POLAND

My experience

More

RostkowskiJuly 2019 - Present

Java developer in Sorigo sp. z o.o. working on new and
existing front-end and back-end applications for corporates
such as Pfizer, T-Mobile, Play, Tauron.


Responsibilities:

• Developing new app for signing pdf files with electronic
signature. Back-end: Java, SpringBoot, Maven, H2
database. Front-end: Angular 7, Bootstrap

• Creating jUnit tests for new functionalities.

• Infrastructure maintenance of Pfizer network using
spark jobs to process databases workflows. This
infrastructure is based on a few Kubernetes clusters
with dozens of pods and hundreds of cores. 

Main
tasks:

◦ Developing new functionalities for existing
microservices based on Java, SpringBoot, Mysql,
MongoDB.

◦ Creating Ansible scripts for automation of tasks and
deployments of environments.

◦ Creating Jenkins jobs for executions of Ansible
scripts.

◦ Creating monitoring stack using Prometheus and
Grafana

◦ Installation of logs collectors of k8s microservices
using:

▪ logback

▪ ElasticSearch, Fluent-bit and Kibana

◦ Upgradings and redeployments of k8s environments

◦ Migrating existing Kubernetes clusters to new AWS
EKS cluster

◦ Fixing bugs reported in Jira and improving existing
functionality of Kubernetes environments and
microservices. 

• Developing new app for properties verification of pdf
files – standalone app based on JavaFX.

• Onboarding new employees and introducing them
existing projects.

More

Passus SAJanuary 2019 - June 2019

Java developer in Passus SA developing existing apps for
network monitoring.

Responsibilities:

• developing NetCollector – app for monitoring network
traffic. Back-end: Java, Spring. Front-end: Thymeleaf,
GoJS, OpenstreetMap

• developing app for load testing of web applications.
Back-end: Java, Spring, MongoDB drivers. Front-end:
Angular 7, Kendo, OpenstreetMap

• Creating jUnit tests for new functionalities.

More

McKesson Ltd.December 2006 - February 2008

Quality controller in McKesson Ltd. Cork, Ireland 

Responsibilities:

• controlling of quality of printed materials

• production of CDs

My stack

Frameworks

Bootstrap, AngularJS, Hibernate, Angular 7, REST

Languages

JavaScript, Java, JAVA 1.8

Databases

MongoDB, MySQL

IT Infrastructure

Ansible, Git

Analysis methods and tools

Junit, Apache Maven

Open Source solutions

Kubernetes

Software testing

Debugging, Load testing

Others

Kibana, Prometheus

Middleware

Jenkins

Technologies

ElasticSearch, Spring Boot

My education and trainings

Certificates and courses - --

Masters Degree - Faculty of Management - Warsaw University1999 - 2005

Faculty of Electronics and IT - not finished - Warsaw University of Technology1997 - 1999