Basic

Steffen Weidenhaus

ist offen für Projekte. 🔎

Self-employed, Freiberuflicher Softwareentwickler / Freelance Software Developer, Weidenhaus Consulting

Mannheim, Germany

Skills

JavaScript
Angular
Node.js
AngularJS
Frontend
Analytics
Business Intelligence
Start-Ups
MySQL
Projektarbeit
Projektmanagement
Beratung
UX/UI Design
HTML
CSS
TypeScript
React
PHP
Full-Stack-Entwicklung

Timeline

Professional experience for Steffen Weidenhaus

  • Current , since Jan 2021

    Freiberuflicher Softwareentwickler / Freelance Software Developer

    Weidenhaus Consulting

    Softwareentwickler mit 10 Jahren Erfahrung in Weltkonzernen, Startups und Mittelstand. - Entwicklung von webbasierten Anwendungen für alle Branchen und Unternehmensbereiche - Alle Anwendungen werden komplett nach Ihren Vorgaben entwickelt und massgeschneidert für Ihre Firma programmiert, mit klarem Fokus auf Sicherheit, Benutzerfreundlichkeit und Wartbarkeit - Ganz nach Ihrem Wunsch wird die Anwendung bei Ihnen oder in der Cloud betrieben

  • 7 months, Jun 2020 - Dec 2020

    Senior Developer

    SAP

    In my current role at SAP I’m part of the agile core team for OpenUI5, SAP’s frontend JavaScript application framework that enables users to build cross-platform, responsive and enterprise-ready applications. I’m responsible for providing customization options for multiple data-driven components.

  • 1 year and 3 months, Mar 2019 - May 2020

    Founder & Lead Software Engineer

    Weidenhaus Consulting

    In Zurich I founded my own consultancy, working with interesting clients from fintech, retail and tourism. For a data start-up in the fintech space I created reusable and fast adapters for syncing data via the APIs of LinkedIn, Hubspot and other data providers. In my role as founder I also oversaw day-to-day operations and processes, interacted with clients, generated leads and handled the legal responsibilities. Tech Summary: Bootstrap, JavaScript, MySQL, Node.js, PHP, Python 3, Salesforce, TypeScript

  • 4 months, Mar 2019 - Jun 2019

    Senior Specialist

    Arup

    At Arup I developed fast, easy-to-use and highly maintainable Node.js & React.js full stack applications to create state-of-the-art mapping tools for urban planning and spatial analysis. Most of the backend services were hosted on AWS EC2 instances and Lambda functions. We used Terraform (infrastructure as code) to provision data and functions to AWS. Tech Summary: AWS, MapBox, Node, PostgreSQL, React, Redux, Sass

  • 5 months, Oct 2018 - Feb 2019

    Integration Specialist

    Destined

    For one of Australia’s most innovative fintech companies I created several scripts to integrate and sync data from Salesforce to Google Firebase and vice versa, combining the speed of Firestore with the accessibility of Salesforce. (Salesforce, Node.js, Firebase) Working with Australia’s ‘Energy Retailer of the Year’ I was responsible for the development of a custom middleware solution to continuously integrate complex billing data into Salesforce. (Salesforce, Node.js, Heroku Connect, PostgreSQL)

  • 6 years and 6 months, Jan 2012 - Jun 2018

    Development Expert

    SAP

    At SAP I developed a company wide reporting landscape with millions of data records. (Linux, Apache, MySQL, SAP HANA, PHP) I created various reports to guide strategic initiatives by gathering relevant data and develop final recommendations. (JavaScript, Typescript, Angular, React, D3.js, Bootstrap) At SAP I organised workshops to show my work at road shows and the board room. I love to implement real-world feedback using methods like design thinking to provide the best user experience possible.

  • 3 months, Dec 2010 - Feb 2011

    Praktikant

    Goldenway Industrial Co.,Ltd. - Hefei, China

    Process and shipment route analysis. Creating company website in Chinese, English and German using state of the art design and content management system. (Joomla, Responsive Web Design)

  • 1 year and 8 months, Feb 2009 - Sep 2010

    Technischer Leiter

    Flip4 GmbH

    Developed a complex eBay parser to get current price trends for various products. Created custom CRM for handling customers, inventory and sales. (PHP, MySQL, JavaScript, HTML)

Educational background for Steffen Weidenhaus

  • 1 year and 2 months, Jul 2005 - Aug 2006

    Intensivkurs Chinesisch

    Shanghai International Studies University

  • 6 years and 8 months, Sep 2004 - Apr 2011

    East Asia Science (Focus: China) & Economics

    Universität Heidelberg

Languages

  • German

    First language

  • English

    First language

  • Chinese

    Intermediate

Wants

JavaScript
Frontend
Web-Development
TypeScript
Freelancing
Node.js
React
Angular
React.js

Interests

JavaScript
Web Development
Frontend
TypeScript
Node.js
HTML5

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