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Berlin, Germany
German (native)
English (fluent)

Summary

7+ years of experience in R&D of software based networks, Real Time Communication and M2M/IoT.

2+ years of experience designing & maintaining scalable enterprise level hardware and software solutions.

Education

High School Diploma
Charles-Darwin Gymnasium
2008
Bsc. Computer Science
Freie Universität Berlin
2018

Languages

Java
Javascript
TypeScript
HTML/CSS
Rust
Python
Dart/Flutter
Made with &
Robert Ende

Software Engineer

robert@ende.pro ende.pro github.com/Endebert
Work Experience
Software Engineer
05/2023 - 11/2023
MicroDoc - hardware & software IT consulting
Berlin, Germany
  • design B2B/B2C online portal and middleware for automotive charging for major german electricity provider
Full Stack Engineer
10/2018 - 04/2021
Tillhub GmbH - cloud-based all-in-one point-of-sale system
Berlin, Germany
  • create enterprise level hardware & software solutions
    • requirements analysis
    • hardware/performance evaluation
    • frontend applications
      Flutter
    • scalable backend
      Node.js
      REST
      JSON
      JSON Schema
      GCP
      PostgreSQL
    • communication with proprietary devices
      Flutter Plugin
    • multiplatform
      Android
      iOS
    • automatic deployment
      CI/CD
      Github Actions
      fastlane
    • full project ownership
      Scrum
    • >1000 devices running 24/7
  • extend & maintain large scale web dashboard
    Vue.js
    Microservices
Working Student
04/2011 - 04/2018
Fraunhofer FOKUS - (R&D) Software-based Networks
Berlin, Germany
  • create demo applications
    Android
    SPA
    Audio/Video conferencing
    WebRTC
  • build & improve application platforms & software testbeds
    Java
    Python
    5G
    SIP
    UDP
    M2M/IoT
    NoSQL
    Packet Analysis
    Docker
  • design use-cases for future technologies
    VoLTE
    Augmented Reality
  • spec-compliant reference implementations
Project Experience
OpenIMS Core + MonsterRCS (2011 - 2013)
Rich-Communication-Suite; telco system and user application, with instant messaging, video calls, etc.
knowledge gained: working in small, internal team; Java + Android experience (backend & demo applications); spec-compliant (reference) implementation; database handling (SQL + MongoDB); testing; packet analysis (Wireshark)
Cross-layer Service-to-Network Orchestration (2013 - 2015)
research project with Japanese NTT; develop use-cases for real time convergence of media streams
knowledge gained: working with international partnership; use-case concept/design: rapid prototyping; working with experimental technology; (Android + WebRTC)
OpenMTC (2015 - 2017)
reference implementation of oneM2M standard, designed for R&D of M2M/IoT applications
knowledge gained: Python experience (backend), M2M protocols, including reverse-engineering of proprietary protocols; spec-compliant implementation; testing
reTHINK (2017 - 2018)
EU research project to create OTT service, in partnership with telco providers and research institutes
knowledge gained: use-case concept/design/implementation (full-stack); design/implementation of pre-commercial solutions; spec drafting/creation; rapid prototyping; API design/implementation; M2M protocols; IoT-Web interconnection
Tillhub Dashboard (2019 - 2020)
web-based point-of-sale management dashboard; revenue statistics, product inventory, employee management, hardware overview, etc.
knowledge gained: working on enterprise-scale web application; working with large databases; CI/CD (backend & frontend); extending public facing REST API (Node.js); microservices; localization (via Phrase); resilient currency value handling, formatting, calculations in javascript
Cloud-based product label printing solution (08/2018 - 2019)
hardware & software project to facilitate large scale label printing
knowledge gained: full project ownership; writing proprietary messaging protocol; raw communication over USB serial bus; distributed job handling; hardware status report; remote device authentication; Server-sent events; PostgreSQL LISTEN/NOTIFY
Livehub (2019 - 04/2021)
tablet bound to a cash register; shows shopping cart contents, payment transaction status, ads
knowledge gained: hardware evaluation; writing performant css animations; device authentication; automatic software update; Dart & Flutter; serving web content inside Flutter app
Warehub (2020 - 04/2021)
mobile app for warehouse management (barcode scanning, product verification, stock taking)
knowledge gained: writing Flutter plugins; CI/CD; support external HIDs; Test Driven Development; Domain Driven Design; database migrations; background sync of large data
Personal Projects
SquadMC (2018 - 2020)
Open-Source map-based mortar calculator for the video game “Squad”; ~500 daily (unique) users
knowledge gained: creating web-application optimised for mobile & desktop; front-end development & design using Vue.js; error reporting & handling; basic google analytics integration
Sandspiel (09/2022 - 03/2023)
A prototype implementation of the classic falling-sand game written in Rust
knowledge gained: programming in Rust, incl. multithreading/concurrency; rust-wasm