Piotr B.

FULL STACK DEVELOPER

610 euro
Freelancer
14 years
London, UNITED KINGDOM

My experience

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AlliantsFebruary 2019 - Present

Adding new features to real time chat application used for hospitality industry 
● React, Redux ● Ruby on Rails ● Smooch API
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Tusker DirectMay 2019 - Present

Adding new features and maintaining car leasing platform ​ https://tuskercars.com/​ . Close cooperation with the business.  
● React, JQuery, Stimulus ● Ruby on Rails ● Microservices
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JobsForITApril 2019 - Present

Building MVP of first fully transparent job board for IT people on german market https://jobsforit.de 
● product development, wireframing ● planning architecture ● React, MobX, Contentful ● MaterialUI, AntD
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TrifinityJanuary 2019 - February 2019

Building a private blockchain proof-of-concept for one of Big Four auditors companies. 
● Hyperledger Fabric + Composer ● Azure, Docker ● Node
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Axioma EuropeAugust 2018 - December 2018

Building a demo application for early stage startup in insurance industry (AI + blockchain). Advising on architecture. Taking part in meetings with potential partners. Staying very close to business. 
● Using React, Node, Express, MongoDB ● wireframing, prototyping ● advising on product development and hiring
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Flotea (flotea.pl)May 2018 - August 2018

Analysing blockchain usage for the transport industry Designing sample smart contracts Preparing training materials for the team: 
● Solidity smart contracts (lottery, ICO, DAO…) ● Tokens (ERC20, ERC721) ● Testing (Solidity tests, JavaScript tests) ● Security (Re-entry attack) ● DAPPs & deployment (Truffle, Web3) ● External services (Oraclize, Infura) ● Storage (IPFS, Swarm)
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FireHoseProjectMay 2015 - June 2018

Mentorship for young Ruby web developers
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Nukomeet (nukomeet.com)December 2016 - May 2018

Building frontend app for (datapeps.com) Maintenance of API for the biggest french museums (art.rmngp.fr) 
Technology: ● React, TypeScript, Gatsby, MobX ● Ruby on Rails ● ElasticSearch

SelleoJanuary 2016 - November 2016

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AirSorted LTDOctober 2015 - January 2016

Building and maintaining Airbnb management system (http://airsorted.uk) integrating with Plivo API for redirecting phone calls and sending/receiving SMS
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WoumediaJune 2015 - October 2015

Building e-commerce site
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Bitsilk LtdOctober 2014 - February 2015

Technology: ● Ruby on Rails 4 ● BDD/TDD, (Spinach, RSpec) ● Heroku, AWS ● HAML, Twitter Bootstrap, CoffeScript, JQuery, JavaScript, SASS
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ComlaudeDecember 2013 - August 2014

Building web system supporting validation process of applicants willing to register restricted domain for new gTLDs (.london, .brussels, .wales) 
Technology: ● Ruby on Rails 4 / Sinatra ● BDD/TDD (RSpec, Spinach, Cucumber) ● PostgreSQL ● HAML, Twitter Bootstrap
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Capita Unternehmensberatung GmbH, GermanyDecember 2010 - October 2013

Building and maintaining enterprise resource planning system for GVOE (​ http://www.gvoe.de​ ) leading german company providing recycling services in oil industry.  
Technology: ● Ruby/JRuby + Rails 2/3/4 ● BDD and TDD (Shoulda/RSpec/Cucumber) ● Postgresql, Resque/Redis ● HTML, Twitter Bootstrap, Sass, Css, JavaScri
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DiginetFebruary 2013 - March 2013

Building standalone application for consuming API and managing ebooks. 
Technology: ● Ruby on Rails 3 ● SOAP ● Twitter Bootstrap
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Phunkwork UGAugust 2010 - October 2010

Building ruby gem for seo purposes 
Technology: ● Ruby on Rails 2 ● RSpec
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Landie Sp. zo.oDecember 2009 - April 2010

Building Web 2.0 vortal for ski enthusiasts 
Technology: ● Ruby on Rails 2 ● HTML, CSS ● Creating Redmine plugin for link-building campaign
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Amervox Sp. z.o.oNovember 2009 - January 2010

Fixes to car selling portal.  
Technology: ● Ruby on Rails 2 ● MySQL
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StartupNovember 2007 - July 2009

Building Web 2.0 startup based on social networking and IM chatterbots system.

FreelanceAugust 2007 - November 2007

Prokom SoftwareJanuary 2007 - January 2007

My stack

SOAP, Sass, Ruby on Rails, Ruby, Redux, React, PostgreSQL, MySQL, MongoDB, jQuery, JavaScript, Heroku, Git, Docker, CSS, Bootstrap, Azure, AWS, API