# Philipp Bolte

> Full-stack software engineer from Leipzig, Germany.

I work across mobile, web, backend, and infrastructure with a strong interest in the product side of engineering. I'm happiest in small teams that like to get things done properly.
Outside of work I'm working on my weather app Oscar and often out taking photos. Some of them you can find in the timeline below.

## Contact

- Email: philipp@bolte.id
- Location: Leipzig, Germany
- CV (PDF): https://bolte.id/cv-bolte.pdf
- LinkedIn: https://www.linkedin.com/in/philipp-bolte-5148601a3/
- GitHub: https://github.com/strumswell
- Bluesky: https://bsky.app/profile/bolte.id
- Instagram: https://www.instagram.com/strumswell/

## Experience

### Full Stack Software Engineer, PetsApp (2026 – Present)
https://petsapp.com

- Ownership of the mobile app stack serving 250,000+ monthly active users
- Major React Native codebase upgrade with zero regressions
- Feature work across the React frontend and NestJS backend
- Platform direction towards Expo and native

### Full Stack Software Engineer, Spherity (2022 – 2026)
https://www.spherity.com

- Architected and built caro.vc, a B2B identity SaaS for pharma compliance
- Led the React frontend rewrite: component library, animations, testing stack
- Authored ERC-7506 “Trusted Hint Registry”, funded by the Ethereum Foundation
- Advanced W3C-aligned standards in the Open-Credentialing Initiative

### Blockchain Engineer Intern, BCG Platinion (2019 – 2020)
https://www.bcgplatinion.com

- Built prototype blockchain solutions for clients in several industries, from concept to presentation
- Supply chain and IoT demonstrator for aerospace
- Decentralized land register, an energy trading platform, and an Airbnb-style flat rental prototype
- ERC-20 token and a private Ethereum network used to show how the technology works

## Education

### M.Sc. Business and Information Systems Engineering, TH Brandenburg (2019 – 2021)
https://www.th-brandenburg.de

- GPA 1.0, best of year
- Thesis: an implementation-based evaluation framework for verifiable credential SDKs (1.0): https://bolte.id/ssi_master_thesis.pdf

## Projects

### Oscar°
A SwiftUI weather app for Germany with detailed forecasts, radar maps, and rain alerts. Built on open weather data and a Swift backend.
https://testflight.apple.com/join/xf5iJcHh

### Oscar Server
Oscar's server component written in Swift on Vapor, directly ingesting data from national weather services to power custom map layers and notifications for rain and weather alerts.
https://testflight.apple.com/join/xf5iJcHh

### ServerlistMOTD
A Minecraft server plugin with over 100,000 downloads. My first programming project, written at 15 to learn Java.
https://github.com/strumswell/ServerlistMOTD-X

## Photography

329 photographs taken between 2024 and 2026, shot on a Fujifilm X100VI and shown as a timeline on the homepage.