Oskar Lang

HydraCo-owner and engineer

Leveling, welcome and reaction-role bot founded by Jochen Segner, on 6.1M Discord servers.

• Built most of the hydra.bot web app, including premium subscriptions (Vue, Nuxt)
• Co-develop the Kotlin backend as its second-largest contributor
• Lead frontend, infrastructure and the monorepo for the 2026 rebuild (Rust, Kubernetes)

SoundCloudEngineer and project lead (contract)

Official SoundCloud Discord bot, on 667K servers, built and run with Jochen Segner.

• Manage the project with SoundCloud, including the 2022 launch and the move to OAuth 2.1
• Lead the web frontend (TypeScript, Nuxt) and co-develop the Kotlin backend
• Set up and run production in the SoundCloud AWS organization with Terraform

Digital Office 24Software engineer (contract)

Built the production customer platform alone: HubSpot CRM integration, demo booking, customer area and billing (Bun, Hono, Next.js). Also did its GDPR and consent work.

FinaureTech lead (contract)

Self-funded digital wealth-management startup by Dr. Jürgen Lange, built AI-first. In the core team, built its independent review program and an implementation-agnostic test lab.

Top.ggSoftware engineer (contract)

Built frontend features for reviews, ad campaign health, SEO and internationalization (Next.js), plus a signed macOS app for infrastructure status (Electron).

“Hey, Netflix” Discord botSoftware engineer (contract)

Built with Jochen Segner for Netflix, credited at HydraBot. 150K+ servers and 250K+ sessions in its first month; billed as the fastest-growing branded app on Discord. 2023 Webby Honoree.

GroovyCo-founder

Discord music bot with Nik Ammerlaan; 16M+ servers before YouTube forced it offline.

• Wrote the original bot at 16 (Python, then Java)
• Led frontend and monetization as revenue passed $1M