Daniel Hopp

Open to full-time roles

Senior Software
Engineer.

I build reliable full-stack products with Rust and Flutter. Coding agents speed up implementation; architecture, code review, testing, integration and release approval stay with me.

Selected work Get in touch
BASED NEAR MUNICH

Product-minded engineering with a focus on quality, clear architecture and dependable delivery.

SELECTED WORK

A reusable platform. Reliable product delivery.

01TAURON PLATFORM / VERTICAL PRODUCT

Tauron

From location to sales-ready context. In seconds.

An initial water-protection check and geological context help sales prepare a better-informed quote. Bohris is the geothermal-drilling application built on the reusable Tauron platform.

Engineering case study · not in productive use. Initial assessment, not a permit.

Read the engineering case study
See productBack to explanation Actual application · 0:41

Enter a site, review the initial assessment and sizing, then submit an inquiry. This is an initial estimate with demo geodata, not a permit or geological certification.

0:00 / 0:41

Actual application · synthetic demo data · German UI · no audio. Recorded 18 Sep 2026; not production use.

Bohris customer inquiry: water-protection assessment, geological context and handoff to sales
02SPATIAL COMPUTING / LOCAL-FIRST

Vestra

A depth map is not a world.

A local-first Rust pipeline that turns handheld RGB video into an explorable relative-scale scene — while keeping every depth, pose and fusion decision inspectable.

  • Rust scene pipeline / browser studio
  • Immutable evidence layers
  • Optional pinned COLMAP provider
Read the Vestra case study
Vestra engineering: Rust inference, registration, fusion and source-linked geometry
RECONSTRUCTION / FROM THE INSIDEExplore the Vestra case study →
03RELIABILITY CASE STUDY / LOCAL

Last Slot

One slot. One committed booking.

An intentionally small Flutter and Rust system: two visitors, one slot, at most one booking. A Patrol journey writes through the UI on two browser pages, one after the other, then a fresh admin page must read back exactly one booking. A separate HTTP/DB proof owns 201 + 409 and idempotent replay.

  • Unique constraint is the guard
  • Two browser pages, then fresh-page readback
  • Zero retries; run locally with bash scripts/e2e.sh
Open the repository
Last Slot engineering: database constraints, browser readback and idempotent replay
What the animation shows
  1. One winner. PostgreSQL prevents a second booking for the same slot. The other visitor receives an explicit conflict.
  2. Safe retries. Reusing the same booking key returns the original booking instead of creating another one.
  3. Fresh readback. New browser pages read the saved result through the app. A separate HTTP/database test checks the row count.

This is a process animation. The recorded test results and reproducible checks are separate evidence.

RELIABILITY / FROM THE INSIDEExplore the implementation →
EXPERIENCE

From embedded systems to full product ownership.

Software Engineer - Independent Product Projects

Independent full-stack product work across Rust, Flutter, infrastructure and browser-driven quality systems: Tauron / Bohris (engineering case study, deployed, not in productive use), Vestra and Last Slot (public source, local applications).

Freelance Software Developer - Goaltip

Continued end-to-end feature ownership for Retis, a solar-industry ERP, for its rights holder, and built an academy with reference material and tests for verifiable onboarding.

Software Developer - QPS

Full-stack delivery on Retis with Flutter, Rust and TypeScript; the ERP grew to around 250 users during my tenure. In the final year I led the four-person development team (myself and three developers): prioritization, architecture decisions, code reviews, stakeholder alignment, one-to-ones and the final technical hiring decision in a shared process with HR.

Working Student - d.stream

Embedded systems development with TI PSDK, OpenVX and C++ alongside applied computer science studies at HTW Berlin (2020 - 2023, no degree; computer science at HU Berlin 2016 - 2020 before that).

LET'S WORK TOGETHER

Building something
that needs to hold up?

I'm looking for a full-time Senior Software Engineer role - remote-first or hybrid near Munich. Available for a start in Q4 2026. German native, English fluent. CV on request.

[email protected]
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