André Meirelles

André Feijó Meirelles Fullstack Blockchain Developer Ivoti, Brazil E-mail:-LinkedIn: linkedin.com/in/afmeirelles _________________________ About me I love coding and I love javascript. I've written code in some languages (PHP, Android, Java, even MySQL stored procedures and an obscure POSWeb language) but none could provide me the flexibility javascript has to offer. I truly believe that a good architecture, a strong unit tests suite and some js linter can keep js code tidy and safe. Also, I’ve acted as agile coach part-time, so I can say I have pretty good agile skills. I've worked for 5 years with design and implementation of Node.js RESTful microservices - from credit card transactions and prepaid accounts to PDF reports generation. The payment gateway I’ve developed is now Since 2017 I've been working with blockchain development as well – mostly ethereum/solidity, including unit testing with Truffle, deployment, backend integration with the chain through infura and so on, using Firebase for wrapper APIs when needed and react.js on the front-end. Talking about Firebase - I’m a serverless applications advocate. Those who I’m working with will probably tell you I’m those kind of guys who own the applications they work on. That’s true. For me, being a good developer goes way beyond coding: one should be aware of the business challenges the product faces, what customers expect, how much does the code cost to be run and so on, because more often than not what makes great software aren’t that big, complex decisions, but the sum of those frequent micro-decisions each dev makes on daily basis - and to make good ones, a good dev should be able to assess how they can affect the product downstream. _________________________ Significant Work Experience Partner & Ethereum Developer | October, 2017 – Present OnePercent.io Working among friends, we’re helping companies and entrepreneurs to quickly capture value from blockchain technologies by solving business problems with a wide range of solutions - from apps and websites to back-end APIs and blockchain infrastructure. Some projects​: EHAB ICO • ICO/Token contracts and consulting • Technologies: Solidity, Truffle, Mist, Metamask BierChain ICO • ICO/Token contracts and consulting • Technologies: Solidity, Truffle, Mist, Metamask OrHUB • Platform for real state tokenization • Technologies: Solidity, Truffle, Firebase (Realtime Database, Functions), Metamask LottoCap API • Smart contracts + API to register online gambling numbers on the blockchain • Technologies: Solidity, Truffle, Firebase (Realtime Database, Functions), IPFS UnoChapecó Blockchain Solution • SmartContracts + API + private blockchain infra for registering teacher actions on blockchain • Technologies: Solidity, Truffle, Firebase (Firestore, Functions), Google 2FA, Geth, Docker, Ngnix Oken.app ● Oken is a digital assets platform, created for companies to easily issue and manage their blockchain tokens. See more at: ​https://oken.app ● Technologies: Solidity, Truffle, Metamask, Firebase (Firestore, Functions, Hosting, Authentication), React.js/redux/redux-sagas Node.js Software Developer & Agile Coach | August, 2013 – Jan, 2019 Versul Tecnologias Ltda The very nature of Versul’s solutions and the dynamic environment I have encountered had me exposed to a variety of technologies and methodologies. I also acted as part-time Agile Coach, helping teams keep focused and improve over time. ​At Versul, all developers are required do create products from concept to production, which was the best challenge I could have met in order to create a broader view of software development. Methodologies: TDD, BDD, Agile (Scrum + XP), Kanban Projects​: S2Parking • Since 2013. On-street parking management platform • Technologies: PHP, JavaScript, MySQL, Android, Ionic, Docker, Chef. S2Reports • Since 2015. Microservices ecosystem designed to import, handle and delivery huge amounts of data in json, csv or PDF • Technologies: Node.js, Angular.js, Elasticsearch, Couchbase, Docker, Chef, Terraform. S2Pay/S2Wallet • Since 2016. Digital payments and prepaid digital wallet platform • Technologies: Node.js, Angular.js, MySQL, Docker, Chef, Terraform. Volunteer Instructor – PHP 101 | July, 2014 FTEC Faculdades Volunteer, organizer and instructor of the PHP 101 Course. Financial Management Assistant | April, 2001 – March, 2013 RBA Publicidade Ltda Performed management and financial routines as payroll, payments, invoice check and issuing etc. Support in IT demands. _________________________ Significant Certificates Blockchain Developer Program Consensys Academy - July, 2019 Lean Kanban Practitioner - KMP I Lean Kanban University – March, 2015 Software Analysis and Development Technologist FTEC Faculdades, August 2014 Advanced English Oxford House College – London, UK – May, 2013 _________________________ Awards Cum Laude – FTEC Faculdades – August, 2014 Scientific Paper Award – 1​st​ place at Scientific Fair 2003, ICSA/Feevale University ​Paper: Entrepreneurship and Brazil: a conjunctural analysis. Scientific Paper Award – 2​nd​ place at Scientific Fair 2003, ICSA/Feevale University ​Paper: Strategic Planning for Innovation.