Tomas Sivicki

Creation, maintenance/stabilisation and completion of a dashboards (medical evaluation) & management system (financial prognosis) for insurances to evaluate claims with a heavy B2B focus. Stack: React, Node.js (Koa), GraphQL, Jest/Testing-Library, Typescript and MongoDB

Revival of a postponed project of a chat bot written in React-Native (proof of concept for a modernised upgrade). Added a Broker bridge to allow PSD2 connections to external services (proof of concept of an autogenerated api client) and maintenance of the current onVista client dashboard.

Smaller projects under the wings of my own company throughout the years (unsorted timeline): - Music player and playlist Integration for a wedding musician using Deezer's API - Storefront TV splash screen implementation using Raspberry PI and Headless Electron running in full screen - Insurance Banker Website (Wordpress) - Cosmetician Website (Wordpress) - Bakery Website (Static HTML) - Concert Ticket Selling Website (Prestashop) - Fremtas Werkzeugmaschinen GmbH (Joomla, Wordpress)

Development and rework of a PSD2 conforming online banking, third party provider interfaces and customer oriented platform (sales) together with Denkwerk GmbH (Cologne). Successfully released, tested, documented and maintained an SPA frontend client and fulfilled hand-over to an in-house team. Stack: NodeRED, Typescript, Javascript, React, Redux, Jest, Testing-Library / Enzyme, Typedoc, REST/ Axios

Development of an e-Commerce / product portal web application and backend for Erlenbach GmbH / PF Community, selling third party particle forming machines, including a subscription model and advertising support. Stack: Nodejs, Nestjs, Typescript, React, GraphQL, AWS, Docker, Kubernetes, Jest, Testing-Library

Implementation of a cable assembly content management and statistical analysis software using microservice architecture. Stack used: - C#.NET - ASP.NET - Typescript - React / Redux - JSONApi For DevOps complementary software used: - Docker / Docker-Compose - Gitlab & Gitlab CI - Caddy for static documentation hosting Misc: - SQL - Entity Framework - Custom model scaffolding implementation for the frontend

Frontend development and lightweight server implementation for an embedded micro controller using industrial radar data for live data filtering and plotting. Stack: Node.js, C++ Native Modules, ZeroMQ, Websockets, React, Redux

Implementation of a data-driven frontend for water quality related monitoring and management. Based on the systematic collection of synoptic visual, hydromorphological, hydrochemical and hydrophysical characteristics a (google maps-like) map tiles were prepared and rendered in 3D with a visual heat map. https://www.river-view.de/

Management of a small team of developers. Projects involved: - WiFi marketing and captive network implementation for mobile devices (IpTables, Lua, OpenWRT and SPA Javascript frontends) - Shopping center and large-area event management software and WiFi tracking solution of visitors (IpTables, Nodejs & Koa, Javascript)

Development of a First-aider notification system into a Full-Stack architecture with Push notifications: Backend (Java), Frontend (Backbone.js) and App (Android). Published paper: Implementing a Volunteer Notification System into a Scalable, Analytical Realtime Data Processing Environment - https://link.springer.com/chapter/10.1007%2F978-3-319-42620-4_64

Partnered with Software AG for a prototype for CeBIT to showcase a First-Aid App as a gamification App for a contest designed by Software AG. Main idea: showcase how a First-Aider notification application can be modified to implement different scenarios (police force alerting, vip tracking,...) that can benefit and help others in need. The app was successfully showcased on stage, a winner was declared (notified via showcased app) and WDR reported a small television news section.

Android app development of a dating platform using Java and early stage of Android SDK