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Contact
Greeting

Hello!

I’m Josh, a software engineer and creative technologist based in Berlin.

From first draft to execution, I can help you build solutions that get you where you want to go.

Work

Timeline

I have a decade of professional experience shipping full-stack product and infrastructure in TypeScript, Python, and Rust, with a background in C++ audio programming, generative graphics and motion.

Wave Casual UG

Co-Founder, Lead Developer
2016 — 2021

Led development across the company's projects:

  • Designed, developed, and shipped Nylon, a synthesizer plugin built around a novel geometric oscillator; received coverage in MusicRadar, Gearnews, and Synth Anatomy
  • Planned, built, and deployed cloud services supporting Nylon's payment system and social features
  • Prototyped an AI-based audio plugin for a client in the film industry
objekt klein a e.V.

Freelance Software Engineer
2020 — 2022

Designed and developed the Virtual Club, an interactive digital recreation of objekt klein a, where users could explore as smiley avatars, listen to DJ sets, and visit digital exhibitions.

  • Built a real-time Rust backend using Tokio, Axum and Tungstenite to synchronize avatar movement over WebSockets and provide WebRTC signaling for voice chat between users.
  • Scanned the physical venue and reconstructed it via MeshRoom and Blender to create the club’s interactive 3D environment.
  • Supported 14 events with up to 500 concurrent users, featuring international DJs and artists during the COVID-19 lockdowns. The project received the Applaus Award for Innovation in 2022.
Centre for Tactile Internet TU Dresden

Freelance Software Engineer
2021

Built interactive demos using Unity and TouchDesigner:

  • A 3D avatar that mirrored a pianist’s live performance using motion capture, along with an audio-reactive visualization
  • A surfing minigame controlled with a real surfboard
HolyPoly GmbH

Freelance Software Engineer
2021 — 2023

Built interactive prototypes and websites supporting recycling campaigns for clients in the plastics industry, from landing pages to minigames.

Chaos Computer Club

Freelance Creative Technologist
2023 — 2025

Collaborated with RoboKid to design style guides, merchandise, and generative title animations for 37C3 and 38C3, editions of the Chaos Communication Congress that each attracted approximately 15,000 attendees.

Enerithm Technology GmbH

Freelance Lead Engineer, Acting CTO
2024 — 2025

Led technical development of Energuide, an AI-based energy-efficiency platform at a seed-stage startup, managing a team of four engineers:

  • Took the product from concept to a live MVP in 6 months with its first customers, including large real estate agencies
  • Owned system architecture, chatbot development, data pipelines, evaluation, testing, and continuous deployment
  • Designed the UI/UX and hired engineers to expand the team as demand grew
Myceli.AI

Freelance Software Engineer
2025 — 2026

Led stack modernization and development of new payment infrastructure for pollinations.ai, an open generative media API with over 500 apps built on it:

  • Ported existing generation services to TypeScript
  • Added a Cloudflare Workers authentication proxy in front of the generation APIs, with automatically generated OpenAPI documentation
  • Implemented usage metering for text and image APIs, with end-to-end tracing from request to billing
  • Built a batching cache that processed millions of events per day while keeping billing writes below the provider's limit of 100 requests per second
  • Implemented credits and invoicing through Polar.sh