Upstack - Grow your team with the top 1% Remote Software Developers

Work history

UpStack

Full Stack Software Engineer

2019 - Present (5 years)

, Remote

Creating and developing innovative software solutions for clients across a broad range of industries.
Participate in scrums consisting of cross-functional teams, both software and hardware.
Ensure that features are being delivered efficiently and on-time.

C#ASP.NET .NET HTML CSS3 JavaScript JSON XML MSSQL MVC Web API jQuery Razor Razor Pages Bootstrap WordPress LESS SASS Typescript Ionic Node.js noSQL MongoDB Docker Nativescript

Kattis

Senior Full Stack Developer

2022 - 2023 (1 year)

Sweden

Moved existing website into a completely new design using HTML/CSS & PHP with Smarty templates
Designed new pages and page elements using Figma; Implemented all designs with HTML/CSS/PHP & Smarty templates

HTML5 PHP CSS Figma Smarty

Vibrato

Full Stack Developer

2019 - 2019

, Australia

Created a visually striking single-page application for a client from a farming related industry.
Had a key role for UI/UX Design, wireframing and prototyping web-applications with Adobe XD and Sketch. Implemented integration with backend API services (REST).
Developed in-house web-application front- and backend with VueJs, Bootstrap, NodeJs, Mangoose/MangoDB. Implemented automated tests in Mocha (UnitTesting) and Cypress (E2E).

Vue.js Typescript JavaScript Node.js HTML5 CSS3 PostgreSQL Express Mongoose MongoDB GCP Rest API UI/UX Design Bootstrap Bulma Unit Testing Mocha Cypress Adobe XD Sketch Github

smarthouse adesso financial solutions GmbH

Senior Web Developer

2013 - 2018 (5 years)

Karlsruhe, Germany

Provide expert direction and guidance for the implementation of intranet and internet websites and data services, using backend and frontend technologies for well-known financial institutions.
Efficiently oversaw the relaunch of an existing website using data from the legacy platform, migrated it to a new CMS, implemented a new frontend and complex backend logic using C#, ASP.NET, and MVC.
Built and deployed a large product API using OData and Microsoft EntityFramework for a client.

C#.NET MVC MSSQL Web API HTML5 CSS3 JavaScript ASP.NET Odata Entity Framework

mediakular

CTO/CEO

2011 - Present (13 years)

, Remote

Implemented numerous Wordpress Websites for customers from various industries. Planned, designed and implemented a mobile app with ReactNative, GraphQL and Hasura.
Planned, designed and implemented a single-page web-application with VueJs/TypeScript, Hasura/GraphQL, Bootstrap 5 and dynamic SVG with JavaScript for a client from the wedding service industry.
Planned, designed and implemented a job board website with NestJs/Node.js, TypeScript, TypeOrm, Handlebars, REST. Engineered a new solution using a cross-platform technology to distribute the app to other platforms like Android.

JavaScript Node.js Express Ionic Nativescript MongoDB Mongoose C#.NET WordPress Nest.js TypeORM Typescript Vue.js Vuetify.JS Handlebars React Native Graphql SVG Bootstrap UI/UX Design Adobe XD

emnicon AG

Web Developer

2010 - 2013 (3 years)

Karlsruhe, Germany

Offered frontend and backend expertise on developments in a small sized scrum team.
Handled the implementation of the frontend (and partly backend) of a technologically sophisticated website for a well-known amusement park.
Created an interface to receive user-specific data from facebook in order to display relevant information to the user.

VB.Net ASP.NET HTML CSS JavaScript AJAX jQuery

Portfolio

Full Stack Developer - nomadswork

nomadswork is a platform developed with the mission of making remote work easier for both, companies and remote workers. Planned, designed, and implemented the job board platform using NestJs/Node.js, TypeScript, TypeOrm, Handlebars, REST.

Full Stack Developer - mediakular Business Website

Designed, built and implemented the business website for mediakular to showcase the professional projects undertaken by the company and certifications recognizing the efforts of the company.

Full Stack Developer - Product Intranet Application

Handled the implementation of the frontend and backend of an intranet application, for a well-known financial institute with complex CRUD and search/filter interfaces.

Senior Frontend Developer - ASP.NET WebForms Website

Improved and set up a CMS backend for the customer. Implemented the website frontend using C# ASP.NET WebForms, HTML5 and CSS3. Created customisable controls and provided web handlers for PDF downloads.

UI/UX Designer and Developer - Renter App

The Renter App was developed for the K.GROUP GmbH. Designed the screens in co-operation with the customer using wireframes. The solution is a multi-platform application which offers the customer the opportunity to later publish the app on other platforms without additional effort. Provided consultation, design and implementation for an extensive dummy app for the iPhone platform.

Senior Backend Developer - API Service for a Mobile Application

Implemented a large API service on the project for the client to seamlessly provide data to a mobile application. Merged two large product databases by using SQL views on this project.

Senior Full Stack Developer - Relaunch of a Website for a well-known Financial Institution

Managed the re-launch of an existing website using data from the legacy platform and migrated it to a new CMS. Implemented a totally new frontend with a complex backend logic. Built a large product API provider using OData and Microsoft EntityFramework on the project and worked with a team of 5-7 people.

Frontend Developer - Relaunch for a large German Amusement Park

Oversaw the implementation of the re-launch of the website for a large German amusement park. Engineered the enabling connection and integration with Facebook to the site. The site was made highly customisable for the client due to the various extensions implemented in the company's own CMS.

Education

IT specialist in application development

Hubert-Sternberg-School, Wiesloch

2007 - 2010 (3 years)

Advanced Technical College Certificate/Technical Communication Assistant

Carl-Bosch-School, Heidelberg/Wieblingen

2004 - 2006 (2 years)

Stefan L.