mariusz rajczakowski

Mariusz Rajczakowski

Senior software engineer

Mobile: 07450 664760

Summary

Senior software engineer who specialises in TypeScript / JavaScript technologies across the whole stack (React.js, Vue.js, Node.js) and loves bringing DevOps mindset to organisations.

Experience in building complete web applications including backend API systems and infrastructure setup. Automation and optimisation advocate.

Outstanding verbal/written communication skills and ability to coordinate multiple detailed projects from initiation to completion in a deadline-driven environment.

Excellent teaching skills with ability to mentor other developers and lead a team.

Professional experience:

Slate (Fintech industry)

Duration: Jun 2018 - till date

Position: Senior javascript engineer

Summary: worked on first market mortgage product for over 55-s through from service design/incubation to live in 10 months at our client Nationwide Building Society recognised already by Financial Times

HT2Labs (L&D industry)

Duration: January 2017 - June 2018

Position: Software engineer

Summary: worked on 3 products: Learning Locker, RedPanda, GDPR application using a various technologies.

Space and Time Media (Media Agency)

Duration: November 2014 - December 2016

Position: Software developer

Summary: worked on several products ranging from single page apps to CLI tool different technologies.

Rock Insurance (Travel Insurance industry)

Duration:August 2014 - November 2014

Position:Junior web developer

Summary:worked on several products ranging from websites to CLI tool.

Open source:

Project Url
RESTful api with typescript, node and express as foundation for any blogging platform https://github.com/mariocoski/rest-api-node-typescript
universal app boilerplate with react, redux, typescript, node and express https://github.com/mariocoski/express-typescript-react-redux-universal
Laravel Blogger - open source blogging platform powered by laravel 5 https://github.com/mariocoski/laravel-blogger, https://packagist.org/packages/mariocoski/laravel-blogger
Game Changer - concrete implementation of Laravel Blogger, blog about nutrition and healthy lifestyle https://gamechanger.diet
WithJavaScript - concrete implementation of Laravel Blogger blog about javascript releated technologies https://withjavascript.com
Minimalistic java script library https://www.npmjs.com/package/rademenes
Assisted and supervised junior web developer https://webgroup.agatarajczakowska.me, https://todo.agatarajczakowska.me

Created kube-js organisation with 6 projects in total, implemented CI/CD pipelines with circleci and automated processes: build, lint, checking duplication, semantic release and deployment.

Project Url
kube-ts-server - dockerized restful API powered by express/typescript ready to be deployed on kubernetes cluster https://github.com/kube-js/kube-ts-server
kube-ts-client - dockerized single page application powered by react/typescript ready to be deployed on kubernetes cluster https://github.com/kube-js/kube-ts-react-client
tscommons - all essential configs for scaffolding any typescript application https://github.com/kube-js/tscommons
semantic-release - semantic release scripts for different CI services https://github.com/kube-js/semantic-release
renovate-config - shareable config presets for js apps/libraries https://github.com/kube-js/renovate-config
kube-ts-chart - basic chart for setting up kube-ts-* applications on kubernetes cluster https://github.com/kube-js/kube-ts-chart

Created js-items organisation with 3 projects in total, implemented CI/CD pipelines with circleci and automated processes: build, lint, checking duplication, semantic release and deployment.

Project Url
foundation - provides a set of interfaces and tests for concrete implementations of js-items repositories https://github.com/js-items/foundation
knex - concrete implementation of js-items for knex.js query builder https://github.com/js-items/knex
express - concrete implementation of js-items for express https://github.com/js-items/express

Education

2009-2012

Bachelor of Science in Dietetics

Medical University, Wroclaw, Poland

2006-2011

Bachelor of Science & Master of Science in Food Technology and Human Nutrition

University of Environmental and Life Science, Wroclaw, Poland

Languages

Polish - native

English - full working proficiency

German - basic

Technical skills

92%
HTML 5
CSS 3
90%
SASS
90%
Twitter Bootstrap 3
95%
Semantic UI
90%
TypeScript
93%
JavaScript
95%
React.js
95%
Vue.js
91%
Angular.js
87%
Node.js
93%
PHP
92%
Laravel 5
93%
MySQL
87%
Mongodb
82%
Command Line
87%
Git
85%
Linux
90%
Elastic Search
86%
Redis
83%
Apache
87%
NGINX
87%
AWS
82%
Digital Ocean
90%
Docker
90%
Kubernetes
87%
Jenkins
79%
Circleci
75%
Facebook API
83%
Google API
75%