JANSEN KEVIN

+1-937-***-****

PROFESSIONAL SUMMARY

Software development professional with experience in developing and designing

web applications using HTML, CSS, JavaScript, Angular, Node.js, and React.

Adept at developing and deploying complex backend systems, web services and databases.

Well-qualified Full Stack Developer familiar with wide range of programming utilities

and languages. Knowledgeable of backend and frontend development requirements.

Handles any part of process with ease.

Collaborative team player with excellent technical abilities offering 9 years of related experience.

EDUCATION

APRIL 2010-MAY 2014

Bachelor of Computer Science: Computer Science

University of Amsterdam, Amsterdam, North Holland, Netherlands

SKILLS

• C/C++, C#, .Net, Python

• Web Technologies: Angular JS, jQuery,

Bootstrap

• Front-End Programming: HTML5, CSS3,

AJAX

• Express, React.JS, Node.js, Next.JS,

NestJS, Web3.JS, React Native, etc

• MySQL,Microsoft SQL Server, MongoDB,

PostgreSQL, SQLite

• Amazon Web Services

• Javascript Libraries and Frameworks

• PHP Frameworks and Django

WORK HISTORY

FRBRUARY 2019-NOVEMBER 2022

Senior Full Stack Developer

BUSYMACHINES

Amsterdam, North Holland

• Developed IJI components, integrated them into existing code, and supported

production apps using the following technologies: Angular, AngularJS, React,

TypeScript, HTML, CSS, LESS, SASS, Webpack, Stencil, Web Components,

Storybook, ag-grid, and Node.js

• Performed migration from AngularJS to Angular 12 using automation tools like jscodeshift and WebStorm refactoring features

• Developed common web components with Stencil and Storybook

• Monitored production systems using Splunk and New Relic

• Used the following tools for CI/CD: Jenkins, Docker, Artifactory, EC2, EKS, and AWS

• Helped develop APIs using the following back end: Java (Spring Boot and RxJava) and PostgreSQL

• Built architecture using AWS Lambda, API Gateway, AWS CloudFormation, and AWS S3

• Used Elastic search to support indexing and search for various documents

• Deployed the code to AWS using CloudFormation and monitored such using CloudWatch and X-Ray

• Migrated and merged an admin panel application into the platform

• Built from scratch a product website with React and GatsbyJS

• Converted PSDs to pixel-perfect web pages for our admin site

• While creating a new user information solution using the Python framework, I made efforts to strengthen data protection and security, such as increasing the security rate by 24%

• Maintained a large database and configuration service to reduce software maintenance costs using a Python framework, reducing costs by 15% in just one year

• Design robust, scalable, and secure global web-based applications using the Python framework to ensure continuity of all business processes and customer satisfaction

• I developed three web-based data retrieval systems using the Python language

• We made Zilionixx's consensus fully compatible and the Ethereum Virtual Machine to allow anyone to use it in a network that best fits their needs

• Through the EVM, developers can utilize smart contracts on top of Zilionixx, and it allows projects to port their existing Ethereum dApps over to Zilionixx easily

• Additionally, Lachesis is ABCI compatible and can be seamlessly integrated into other blockchains as a separate consensus module.

MAY 2015-SEPTEMBER 2018

Senior Full Stack Developer

ROCKET MINDS

Leiden, South Holland

• Designed and developed an event-driven architecture using the Serverless Framework

• Developed full-blown features with front-end tools such as JavaScript and Node.js and AWS cloud services such as Lambda and S3

• Built from scratch admin platform for managing platform's database entities and users using React, Node.js, and Mongoose

• Optimized SQL and back-end tiers including stored procedure redesigns and enhancements, as well as ongoing SQL Server DBA consultation and instruction

• Architected and completed enhancements to full-stack integrations including .NET framework automation together with SQL APIs real-time security and login accounts reporting, auditing, and alerts modules

• Developed the data harvester, APIs, and user-facing web app that allowed for integration with various project management providers and pulling their data

• using Python, I built an API-based publishing service that handles 17 million pageviews per month and achieved 94% cache efficiency using Python

• Built a source control query service using the Python framework to query information in a scalable, effective, and efficient manner

• Participated in the design and development of an application using Python 3.3, HTML5, CSS3, Ajax, JSON and JQuery that enabled subsequent company success and 24% revenue growth

• Developed web application backend components using Python framework and communicated with 30+ customers to understand their requirements/goals

• Implemented a QR code ticket generation mechanism and ticket delivery via email (Postmark API), text message (Twilio API), and picture message (Mogreet API)

• Created and open-sourced a Ruby Gem for sending picture messages (MMS)

• Advised on the design and implementation of TextMagic API and Ruby wrapper library for sending text messages

• Created a multi-threaded Ruby server listening for measurement data sent by remote sensors over Iridium satellite

• The costly satellite bandwidth required the development of a custom low-footprint communication protocol over TCP/IP.

• Employed coding practices based on commonly accepted standards to establish site layout and user interface.

• Conceived and built optimized landing pages in HTML and CSS for integration and cross-browser compatibility.

HOBBIES

Volleyball and Football, Artificial Intelligence, Deep Learning, Music

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