Contact www.linkedin.com/in/piotr-kosinski (LinkedIn) Top Skills Blockchain Piotr Kosiński Co-founder / CTO Gdańsk, Pomorskie, Poland Experience Cryptocurrency Neutral Co-Founder Languages Building an exchange for environmental assets. Ethereum English (Full Professional) August 2022 - Present (1 year 3 months) Advanced Blockchain Solidity Team Lead February 2022 - July 2022 (6 months) Was leading 15+ members protocol engineering team across multiple projects. Making sure team follows good practices and agile processes, hands-on Solidity coding and protocol design. Energy Web Foundation Blockchain Solution Architect August 2019 - February 2022 (2 years 7 months) Blockchain Solution Architect for the Origin platform (https://github.com/ energywebfoundation/origin) - a decentralized Renewable Energy Certificates trading platform. Blockdiggers Co-Founder, CTO January 2017 - February 2022 (5 years 2 months) Gdańsk, woj. pomorskie, Polska Blockchain consultancy Ethereum Smart Contracts programming workshops MVPs Security Audits Personal Tokens Co-Founder, Advisor June 2017 - January 2022 (4 years 8 months) Find a price of your Personal Brand with your Personal Token. We tokenize attention and personal value, to get funding for creators. Page 1 of 4 Chronologic Tech Lead / Product Owner / Solidity Developer January 2018 - August 2019 (1 year 8 months) Working on Ethereum Alarm Clock protocol, a protocol that enables trustless transactions scheduling on Ethereum network. Powel AS 4 years Innovation Manager / Architect / Blockchain Expert December 2015 - January 2018 (2 years 2 months) Gdańsk Main goals: - Create new business based on innovation - Facilitate the innovation process in SmE - Promote innovation initiatives in SmE - Build a culture for innovation in SmE Main areas of interest: - Machine Learning in forecasting - Blockchain in Energy - Smart Home automation and optimization - Big Data gathering and processing Senior Software Engineer / Scrum Master February 2014 - January 2018 (4 years) Gdańsk Project: Nordic Balance Settlement- Import/export for settlement protocols Description: Part of the Nordic Balance Settlement solution created in Powel. Focused on importing and exporting data between market participants, based on XML messages, integreted with SmE Portfolio Software. To be deployed in 2016. Activity: Design, implementation, leading the team of 5 Position: Lead developer / Architect / Scrum Master Project: Nordic Balance Settlement - Obligation editor Description: Part of the Nordic Balance Settlement solution created in Powel. Web application for creation and management obligations between the market participants in Nordic Balance Settlement process. Activity: Design, implementation, leading the team of 3 Page 2 of 4 Position: Lead developer / Architect / Scrum Master Project: Nimbus Description: The aim of Nimbus is that it should be the users’ desktop for all operative tasks to do with production planning and trade. We are working to make it a seamless system, where you can conduct tasks without leaving the system. It should be possible to exchange data with other systems automatically. Activity: CI experience improvements, deployment pipeline improvements, code solution optimisation, development process improvements, distributed teams cooperation improvements Project: AlgoTrader Description: Sandbox algorithmic trading product for energy markets. Easy yet powerful way to define you own strategies against market and auxiliary data. Activity: Product development, workshops, implementation, leading team of 5 Position: Lead developer / Architect Saylight Co-Founder, Software developer May 2015 - June 2017 (2 years 2 months) Gdansk, Pomeranian District, Poland INFLNCR.io Co-Founder February 2017 - May 2017 (4 months) Gdańsk, woj. pomorskie, Polska Inflncr is a platform that allows communities to invest and incentivise creators, we leverage ethereum blockchain to enable token based attention tokenisation. Communities is where it starts, they represent the demand, influencers (content creator) are supply side of the equation. Since supply doesn't exist yet, community is trying to generate it by creating a monetary incentive towards creators. After influencers delivery, community decide on whether to accept it or not, when accepted an unique attention token is being issued. This token represents the monetary value of attention traded by influencers towards the community. Token value is regulated by free market so communities best interest is to promote it and thus gain the value. Page 3 of 4 Oke Poland Team Leader / Lead developer January 2010 - February 2014 (4 years 2 months) Team leader responsibilities: - multitenant solutions designs & development - issues management - highlevel plannings - release process planning & management - technical coordinator - lead engeenier for STB platform - code reviews - 3rd line support for inlive projects - technical documentation- on-time software delivery - handover documentation - backward compatibility in client-server architecture - ScrumMaster - team evaluation - candidates interviews Fine Solutions Architect / Software developer October 2010 - June 2011 (9 months) Gdańsk Highly customizable and scalable E-commerce platform. Technologies & processes: C#4.0, ASP MVC, SQL, Entity Framework, Windsor Castle IOC, WCF, NUnit, Moq, Log4Net, Hudon, Jmeter, Scrum OKE Poland Sp. z o.o. Software Developer June 2007 - January 2010 (2 years 8 months) Education Politechnika Gdańska M.Sc · (2002 - 2007) Page 4 of 4