Zach Rachedi Email & Phone Number

Berlin, DE

Berlin, Germany

Berlin, Germany

• Developed and maintained a complex NestJs Microservice, fostering collaboration with internal frontend and QA teams. And external third party API teams.
• Optimised legacy backend code for improved scalability and maintainability.
• Created Jest unit tests to ensure robust code quality and facilitate efficient debugging.
• Implemented Cucumber BDD (Behavior-Driven Development) testing for comprehensive feature validation and user acceptance testing (UAT).
• Collaborated with cross-functional teams to define and refine test scenarios within the Cucumber framework.
• Continuously updated and expanded the test suite to cover new features and maintain code reliability.

Berlin, Germany

• Investigated and solved a 6-month longstanding CI/CD blocking issue with cross-team collaboration, saving the company hundreds of hours of compute time for every deployment.
• Improved several unit tests using Mocha and E2E tests using Cypress.js, resulting in a 95% test coverage.
• Developed and optimized backend services using Node.js and Express.js.
• Independently created and implemented new YAML workflow methodologies and a VS code snippets extension, reducing the creation time of application specific workflow templates.

United States

• Developed and maintained a complex web application using Typescript, Sharepoint Online, SPFX, Nextjs and Azure Functions.
• Reduced the time required to complete 3rd-party REST and GraphQL requests from 8secs to 2secs, by implementing Azure ServerlessFunctions, Nodejs child processes and caching of results.
• Achieved 95% code coverage while using coding best practices and comprehensive unit testing.
• Utilized SharePoint Online architecture to set up and deploy authentication protocols, including OAuth2.0 and Open ID Connect,increasing security and reliability of the application.
• Refactored over 7,000 lines of JQuery code to Typescript. Completion of project resulted in a 35% code reduction and a 60%performance increase.

United Kingdom

• Designed and implemented the entire backend for a clothing website from scratch, using TDD principles, Typescript, Expressjs andMongoDB.
• Developed multiple specialized Discord bots that would crawl websites based on user commands and feed the scraped data to adatabase. The crawlers were made using NodeJS, PuppeteerJs and Typescript.

Poland

• Developed a full stack web application for a social media platform using Node.js, React, Redux, Socketio, Redis and PostgreSQL.Users can "create" posts, "like" posts, "comment" on posts, "follow" other users, and.
• Increased code quality by 70% and minimized code bugs by implementing automated testing during development process.

United States

• Developed web scrapping services using reverse-engineering techniques and advanced backend knowledge to extract large volumesof data from Amazon, Walmart, BestBuy and other eCommerce sites. Categorizing the information.
• Used multiple design patterns to overcome software limitations and create a bot that can handle multiple websites using codefactories and strategies.
• Enabled automated image recognition, resulting in an accuracy rate of 98%, and improved scraping speed by 75% using cleverbypassing methods.

Remote

• Completed client projects as a freelance full stack developer while maintaining a 4.9-star client rating from more than 30 clients.
• Completed more than 30 projects, meeting deadlines, quality assurance requirements, and customer expectations, always getting 5starts.
• Developed a variety of successful applications, including web and mobile.

United States

• Developed custom WordPress plugins for client websites, including plugins for site tracking, security, and performance optimization.
• Implemented robust back-end solutions for WordPress installations, reducing page load times and user retention.
• Developed 3rd-party scrapers that crawled thousands of pages every minute, extracted and categorized the data into a WordPresswebsite.
• Integrated payment services such as Authorize and Stripe.

Annaba, Algeria

• Developed and deployed a customized ERP software with Java and HSQLDB for a big residential contractor company.

Annaba, Algeria

• Developed enterprise applications using PHP, JavaScript, AJAX, JQUERY, HTML and CSS.
• Optimized existing web applications for faster loading and fewer resource calls.
• Designed robust user interfaces to enhance user experience, receiving positive feedback from 97% of surveyed users.