Alexandre Magno Teles Zimerer

Born on 6th October, 1982
Lives in Copenhagen, Denmark


I’ve been a web developer for more than 15 years. During my career, I’ve been responsible for building awesome digital products together with great team members, in projects that impacted society through technology in many levels – from startups and companies at earlier stages, to big companies that lead the market like I’m been working with open source initiatives and speaking in tech events like React Advanced in London, QCon and FISL (international open-source software forum). I’m currently working at Danske Bank in Copenhagen, as Senior Software Engineer, working on the core of the Mobile Bank team, responsible to release their apps and to create libraries to support development. I’m an experienced full stack developer with a strong foundation in front-end and interaction design. My career has been based on learnings from different projects, so I’ve acquired experience with the most used programming languages such as Javascript and their main frameworks, like React.js and React Native, as well as backend languages like Node.js, Ruby, Java, Python, PHP, relational
and nonrelational databases and trending technologies like GraphQL.

This flexibility provided me opportunities to contribute to different open source projects worldwide like Electricity Map in Python, Status Messenger with Blockchain, and Bootstrap, which is one of the most popular front-end open source libraries in the world. From all of these contributions and learnings, I published the Mobile First Bootstrap book by Packt Publishing in December 2013.

I’m not just a strong professional with technical experience and expertise who loves to share my knowledge, I have worked in my open source project, Gitpay, a bounty platform to solve issues from projects with a growing community of contributors around the world. If that weren’t enough, I have my lab experience with the internet of things, programming with Arduino and microcontrollers, and I have my automated indoor garden system. I am an early adopter of agile methodologies, and my life is a scrum board, or how do you think I can manage all of this?


Senior Software Engineer, Danske Bank; Copenhagen, Denmark — Aug – 2018 (Current Job)
Working as Senior Software Engineer focused on front-end maintaining the main mobile bank app. We attend 6 different markets like Finland, Sweeden, England, and Norway, as well as different pipelines and startup initiatives inside the organization. I’ve been working with innovation in the Bank, with the recent Open Banking and PSD2, and recently leading an initiative of accessibility for apps with users with disabilities, promoting the accessibility guidelines on the core team, as working as front-end ops, handling app performance and working on the build and release pipeline.

Full Stack Engineer, Trustpilot; Copenhagen, Denmark — Jan 2018 – Jun 2018
Working as a full-stack engineer on Trustboxes teams, responsible for all business integrations on the customer website, reaching around 2 billion users. I have worked with React on the business platform and Node.js on the backend, developing dozens of integrations with vanilla javascript focused on performance.

Software Engineer, Tradeshift; Copenhagen, Denmark — 2016 – 2017
Working as a Software Engineer with a strong foundation in Front-end and the Node.js, integrated with the Java API of the Tradeshift platform. The company serves half a million invoices and offers a flexible solution based on extending apps, which use Javascript with Angular and React as part of the business platform. I worked in documents UI and Tradeshift apps to offer services between buyers, sellers, and suppliers. I had an innovative initiative in a notorious global hackathon with an Ada ( project, that introduced Tradeshift with the AI paradigm applied to customer service procurement.

Software Engineer,; Rio de Janeiro, Brazil — 2009 – 2016 (7 years)
I developed large scale projects for a CMS and publishing news, incorporating hundreds of TV Globo products. Globo is one of the leading TV channels in the world. I worked there as a front-end specialist and a reference for Javascript high-end solutions and testings, not just inside the company, but also taking successful cases as presentations in important open source conferences about Javascript, web, and mobile. I had the opportunity to work with different technologies and stacks with Python, Ruby, and Node.js, and concepts like style guides and mobile-first, migrating all the company to responsive web design.


Gitpay — Aug – 2017 (Today)
A bounty platform to solve issues from projects with Git. We have promoted crowdfunding and freelance with open collaboration to fund projects and help contributors who conclude issues and we match them with job opportunities. I’m helping contributors around the world, and I manage a growing community of 1000+ contributors, with $1000+ bounties paid and 10+ projects.

Ahorta — Aug – 2016 (Today)
A sensor connected to my home wi-fi to help the growth of my home indoor plants. I’ve been using my created device and improving over 3 years to maintain my home gardens and exploring and studying IoT applications in the real world.

Webpoint — Aug – 2010 (Today)
On my personal blog, I’ve been publishing hundreds of articles, tutorials, and extending my knowledges about science and tech. The blog reached 1 million users in 10+ years.

I’ve been contributing to relevant projects like:

  • Status (, a crypto message system developed with Clojure.js
  • Electricity map (, a project that normalizes the data about energy consumption in the world
  • Material UI for React, providing an example template, the Material Sense (,  with 500+ starts and listed on their official documentation


  • Mobile First Bootstrap – December 2013 – Published by Packt Publishing Ltd.
    ISBN 978-­1-­78328-­579-­2


  • Portuguese (native) and English (advanced)


  • React Advanced London – London – 01/06/2019 – A presentation on React Native stage about Accessibility for React Native Apps
  • Sencha Community Days 05/2019 – a presentation about how we scale and manage the UI in your React apps to keep it simple and consistent
  • Qcon 2015, 03/2015,  – Speaks about Multiplatform application development
  • The developer’s conference 2014 – 07/2014 and Front in Fortaleza 2014 – Speaks about the perception about performance
  • FISL 13, 14– Fórum Internacional de Software Livre, 2013 and 2014 – Speaks about Bootstrap and Developing jQuery UI plugins and testing with Jasmine


  • System Analyst – Universidade Estácio de Sá — 2011
  • Scrum Certified Scrum master – Team Ware – 2010


  • Advanced knowledge in Javascript and its frameworks like React, React Native, multiplatform, for desktop and mobile as well as web tools and front-end ops like Babel and Webpack and testing with Mocha, Jasmine and Jest, and front-end Ops, dealing with the most modern stacks from Heroku to Amazon or even Google Cloud;
  • Taking Javascript to the next level with Node.js using frameworks like Express and changing the JS paradigm with ES5 and 6, as well as Babel and Webpack to build the high-end user experience and SPA;
  • Experienced in extreme programming, with extensive experience in setting up continuous integration systems, TDD and BDD, as well as familiarized with the scrum process;
  • Strong knowledge in Ruby on Rails, experienced with Python;
  • Experience in development and construction and use of API’s;
  • Passionate for developing reusable and scalable UI components and UI Patterns, as well as Material Design and SPA’s;
  • Committed to performance optimization, benchmarking, progressive enhancement, usability, and accessibility;
  • Expert in HTML/CSS as well HTML5 and CSS3 (as well LESS and SASS). Experienced in working with browser issues, debugging and cross-browser solutions to achieve the best user interface experience, regardless of the device used;
  • Advanced knowledge of responsive design and optimization for mobile devices and mobile-first;
  • Standard knowledge of relational databases (MySQL and Postgres) and non-relational databases (MongoDB), as query languages like GraphQL;
  • Comfortable working in a Unix/Linux Environment (I’m a mac user);
  • Familiar with version control systems, like Git, mastering the concepts about branches, rebase and I like to teach about the Git Workflow for git newbies.
  • I’m capable to set up a Continuous Integration System and Docker containers;
  • Working with Arduino, microcontrollers for IoT projects, starting with Lua and MicroPython, just for fun


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