Developed a global award-winning graphic design platform helping businesses grow with agency quality design working with a 4-person team, the CTO and another lead developer.• Held 2 short agile team meetings weekly to review the development status and discuss new ideas.• Reviewed source codes and pull requests from teammates and requested reviews from them to assure quality implementing new features and automating deployments using GitHub Actions.

As a member of a 4-person team developed e-commerce websites, questionnaires and internal applications for an award-winning cosmetics startup based in Berlin offering personalized skincare.• Worked with a research engineer and a data scientist to integrate a neural network choosing personalized creams written in Python using TensorFlow with Keras.• Automated Cloud Functions For Firebase deployments using GitHub Actions for Firebase.• Created GitHub and Heroku service accounts to set up Contentful webhooks and allow commits to trigger automatic builds and deployments on Heroku without depending on developer accounts.

• Worked with the former CTO to reimplement the backend written in Haskell using Cloud Functions for Firebase Node.js JavaScript runtimes.• Reimplemented a cream model working with a Stanford computer science and mathematics professor and set up and written tests for it using Jest.• Worked with a project manager, the CEO and another developer to improve and maintain Typeform like questionnaires built with Create React App, Redux, Redux-Saga, React Router, Styled Components, Contentful and with Atomic Design principles in mind.• Integrated a custom checkout for personalized creams using the Shopify JavaScript Buy SDK and the GraphQL based Shopify Storefront API.• Customized the Shopify cart page using the Liquid templating language as well to support personalized products integrating it with the questionnaires.• Set up the Subscriptions by ReCharge Shopify App and integrated it with the customized Shopify cart page.• Implemented a face scan feature using React Webcam and a file input component to display and save skin analysis results in the questionnaires integrating with the Revieve SDK.• Separated and simplified core backend modules from an internal Netlify hosted web application using PDFKit to generate personalized cream jar labels and order details to fulfill. The new set up eliminated the need for a state machine script relying on manual deployments and storing documents in a MySQL database while also reducing complexity and maintenance costs.• Set up a shared Google Drive with a user-managed Google Cloud Platform service account and implemented a module uploading generated PDF files into it.• Added title and meta descriptions for the front page paths using react-helmet to improve their online presence.• Implemented various page speed improvements including, lazy loading pages and components, removing unused dependencies, scripts, routes and components and getting images from Contentful with correct dimensions.

Mentored an Amazon Web Developer Associate to get a diploma and advance in the organization.

• Worked with the CTO to develop an online marketplace offering comparable third party business support services for the Helsinki based company using Create React App, React Hooks and Lerna.• Implemented a responsive landing page with 6 unique sections for service providers based on the given Sketch design.• Created a slider with blog posts using the Material Design for Bootstrap React Carousel.• Implemented a chat dialog layout, a stepper component and a section with partner logos.• Developed an application form using Redux and Recompose.• Resolved Create React App ESLint errors and warnings.

• As a member of a 6-person team developed an e-commerce website using Prismic, Next.js, MobX and Reaction Commerce for a Chicago-based online jewellery store which has a 700K+ following.• Set up and implemented an online magazine with 3 reusable components and 2 article types using Prismic and Styled Components based on the provided Zeplin designs.• Integrated testimonials and trending styles with Prismic using its GraphQL API with Apollo Client.• Implemented fetching and server-side rendering recent blog articles on the home page.• Created routes for the blog and its article pages.

• As a member of a 5-person team developed an iOS and Android application for the client company group based in New York which has 400-500 employees in the finance and real estate sector.• Implemented a Launch Screen and resolved a related iOS build issue on Bitrise.• Identified the cause of a non-reproducible timezone related date issue. This helped us to resolve it and maintain a strong relationship with the client.• Assisted the client changing the backend to show Push Notification icons on Android.• Resolved 6+ application crashes and user interface problems.• Reported 5+ reproducible application crashes, errors and usability issues.

Helped developers world wide by performing live 1:1 sessions. Guided clients online to become better at programming and improve their web development skills. Implemented instant coding solutions for them if preferred while explaining the process in detail. Team work often turned into pair programming. Sometimes a new idea or perspective was enough to help clients get through a challenging problem.• Mentored a developer daily for 3+ months having 90-minute sessions helping with more than 7 technologies including Node.js, React, Redux, Express and MongoDB.• Completed 100+ sessions / projects with 30+ 5 star reviews for a wide variety of clients from pharmacists to experienced developers.• Identified a severe information leak and got a symbolic $500 award for reporting it.• Automatized applying for customer requests saving several hours of daily work. Used a high-level browser automation library and later Google Chrome team’s Puppeteer running on Heroku 24/7.• Used GraphGL with MongoDB working on Apptism with Joey Burzynski from MarketKarma.• Published an article reaching 4000+ readers from 87 countries under 16 days which has been featured as an Editors’ Choice.• Worked with developers like Kiara Robles from Blockstream and companies like US-EcoLogic & TexEnergy, Ironclad Logistics Group and Axelisys.• Worked on company websites like Voysis, Keune Advanced Academy and Georgia Defense Exchange.• Was selected as a top performing featured mentor for more than a week.

• Worked on company websites like Optimove, Namogoo, Tensera, Finanda and Pepperi.• Implemented Pumika Digital LTD's contact page design for Tensera Networks.

• Implemented a cryptocurrency technical analyser using Apps Scripts for Google Sheet. Accepted Bitcoin for the project in 2017 which more than tripled in value as of early 2018.• Managed DoubleClick for Publishers banner and video advertisements for an international sport media company working with Huxley Nice Agency.• Improved arcade sites like DressUpWho, Thunderstorm Games and JuegosFrivCom.

Built the sales page and the product itself offering a ready to use game portal solution. Handled software development, customer service, advertising and networking. Produced a video advertisement.• Implemented support for 21+ game feed providers including Softgames, Famobi and Gamepix.• Automatized product delivery by integrating PayPal Instant Payment Notifications.• Optimized application and sales page performance using Google’s Closure Compiler Service.• Designed a unique responsive layout with asynchronous navigation and a drag & slide interface.• Pushed 1014 commits in 3 repositories using 6 languages.• Started the product investing ~3 month and $5.

Managed and developed applications and cloud computing services. Built the company’s website.• Used Visualforce, Salesforce Lightning Experience and Heroku.• Got a symbolic salary bonus for performing well and identifying several issues in a cloud service.• Earned a Salesforce Certified Administrator license.• Worked with a team of 7+ engineers both in Germany and remotely.• Was selected to design and develop the company’s new website.• Pushed 416 commits in 23 weeks.

Experimented with an Emotiv EPOC Neuroheadset and documented the proper usage and setup. Participated in weekly meetings. Worked with team members in the lab on a weekly basis.• Introduced GitLab’s issue-tracking system for team members.