Skip to main content
Philipp

Philipp

Software & Product @ PetsApp

Software Engineer at PetsApp

Leipzig, Saxony, Germany🇩🇪
Open to:Full-time roles
Preferred workplace:Remote (worldwide)
Report

Activity

Active on:Bluesky networkGrainblue.catbird.mlsChat.device

Loading activity...

View full activity

Career: 3

Software Engineer

PetsApp

Mar 2026 - Present

Software Engineer

Spherity

Mar 2022 - Feb 2026

Full-stack software engineer architecting and building decentralized identity solutions. Building CARO, a decentralized identity platform being used in the US pharma supply chains to get compliant with DSCSA regulations. This also includes very explorative work in the web3 field, mainly with Ethereum Smart Contracts building trusted issuer registrys or new revocation methods (co-authored EIP-5539). Stack: Fly.io, Typescript, NestJS, React, Veramo, Vitest, MSW, and Playwright.

Student Blockchain Engineer

BCG Platinion

Mar 2019 - May 2020

I participated in the conception, development and presentation of prototypical blockchain solutions for various industries. This includes: - Blockchain demonstrator connecting supply chain and IoT in aerospace - Custom cryptocurrency based on ERC-20 token standard and Ethereum - Decentralized land register, including documentation - Ethereum-based energy trading platform - Private Ethereum-based Blockchain demonstrator to show the workings of the technology - Ethereum-based sharing platform to rent (out) private flats inspired by Airbnb

Education: 2

Technische Hochschule Brandenburg

Master of Science - MS

2019 - 2021

Thesis: Self-sovereign Identity: Development of an Implementation-based Evaluation Framework for Verifiable Credential SDKs

Technische Hochschule Brandenburg

Bachelor of Science - BS

2016 - 2019

Thesis: Prototypical Implementation of a Blockchain-Based Sharing Platform

Activities / Societies: Prüfungsausschuss

Projects: 4

CARO

caro.vc

Mar 2022 - Present

Credentialing service for the US pharma market for verifying authorized trading partners in the ecosystem. Leveraging key technologies from Self-sovereign Identity and web3.

ServerlistMOTD

github.com/strumswell/ServerlistMOTD-X

Aug 2014 - Present

A highly customizable plugin to change a Minecraft server's title in the serverlist with over 100 000 downloads.

EIP-5539 Revocation List Registry

Aug 2022 - Nov 2022

Co-authoring EIP-5539 ”Revocation List Registry” for Verifiable Credentials, imple- menting open-source libraries and integrating it into CARO via Veramo.

SSI-based Reference Implementation

github.com/strumswell/ssi-master-thesis

Mar 2021 - Nov 2021

RESTful API implementing four SSI SDKs exposing functionality concerning the Verifiable Credential life cycle. Can be used as a quick starter for SSI to launch a prototype in less than a day.

Languages: 2

German(Native or bilingual)
English(Full professional)

Skills: 19

Other

Backend-EntwicklungData ScienceDecentralized IdentifiersJavaJavaScriptNestJSNext.jsNode.js
Open Source SoftwareOpenAPIPythonReact.jsSelf-sovereign IdentitySmart ContractsSocial Network AnalysisSoliditySwiftTypeScriptVerifiable Credentials

Also find Philipp on…