About

About Me

About me

Hello, moin, servus

I'm Daniel, a developer and product engineer studying Mechanical Engineering at the Technical University of Munich. I work between native iOS, web products, connected hardware, and the systems needed to ship them reliably.

What I am building

My current work is split between Boop and x70. Boop is a local-first iPhone utility for compatible WHOOP straps and Apple Health. x70 is the brand, product studio, and web agency behind a growing set of public tools, apps, and client systems.

Before that, I worked at Brainlab through May 2026 on automated testing for medical video software, led product development at Hir3D, and built exam, developer-tool, and hardware projects. The common thread is turning ambiguous ideas into products with clear technical boundaries and evidence that they actually work.

Engineering beyond software

I completed the IB at Haileybury UK before moving to Munich. My mechanical work includes a bicycle rack for carrying skis and snowboards protected by a registered German utility model (DE 20 2024 102 461.3), developed from early sketches through physical prototypes. In winter, I also teach skiing as a DSLV Level 1 instructor.

You can explore the full timeline below, browse the projects on this site, or follow the code on GitHub. For a conversation about a product, collaboration, or technical problem, email contact@x70.one.

Daniel Ensminger Profile Photo
Profile

Education

LinkedIn
  1. Oct 2025Jun 2028

    B.Sc. Mechanical Engineering

    Technical University of Munich

  2. Oct 2024Jul 2025

    Computer Science and Economics

    IU International University of Applied Sciences

  3. Sep 2022Jul 2024

    IB Diploma · Technology and Economics

    Haileybury UK

    Physics HL, Mathematics AI HL, Economics HL, Design Technology HL, German A SL, and English SL. Co-led the Economics and Engineering societies; served on the HMUN Secretariat and as a THIMUN delegate; played first-team tennis. Awards include the 2023 and 2024 Jan George Design Technology Prize, Silver Mathematics Senior Challenge, and Rotary Engineering Challenge Winner.

  4. Sep 2020Jul 2022

    iGCSEs

    Haileybury UK

Credentials

Courses and licenses

  • Skilehrer Level 1

    Deutscher Skilehrerverband e.V.

  • How Google Does Machine Learning

    Google · 4830253

  • ML TensorFlow on Google Cloud

    Google · 4772637

  • ML Image Processing

    Google · 4755978

  • ML Language Processing

    Google · 4755781

  • Integrate with Machine Learning APIs

    Google · 4748955

  • Big Data and Machine Learning Fundamentals

    Google · 4677100

  • Mastercard · Cybersecurity Job Simulation

    Forage · s52KBQNJtTHFtRNWR

  • JPMorgan Chase · Investment Banking Job Simulation

    Forage · AZJrEYejhbFZAXsgy

Languages

English

Native or bilingual

German

Native or bilingual

Latin

Limited working proficiency

Skills
  • Swift
  • Bluetooth
  • iOS Development
  • Social Media Marketing
  • Bluetooth Low Energy
  • Product Development
  • Robot Framework
  • Software Development
  • Software Testing
  • Automated Software Testing
  • Test Automation
  • Unit Testing
  • Full-Stack Development
  • Technical Architecture
  • Team Leadership
  • Recruitment Technology
  • Physics
  • Mathematics
  • Design Technology
  • Economics
  • English
  • German
  • Start-up Leadership
  • Web Development
  • Machine Learning
  • Machine Vision
  • Language Processing
  • Image Processing
  • Big Data
  • Large Language Models
  • Python
  • TensorFlow
  • Project Management
  • Project Planning
  • Resource Management
  • Google Cloud AutoML
  • Google Cloud Platform
  • API
  • Kubernetes
  • TypeScript
  • Tkinter
  • Nuxt.js
  • Tailwind CSS
  • JavaScript
  • Vue.js
  • Programming
  • 3D Graphics
  • 3D Animation
Career

Curriculum Vitae

Founder and Developer

View Boop
BoopRemote, Germany
Jul 2026 - Present
CoreBluetoothSwiftUIHealthKitProtocol EngineeringOn-Device AI

Founder of Boop, a local-first iPhone utility bridging WHOOP 5.0/MG wearable data directly into Apple Health with on-device AI and no Boop account or health-data cloud, without the need for a subscription. • Implemented native CoreBluetooth stream decoders and packet parsers for WHOOP 5.0 and MG hardware. • Built a SwiftUI/HealthKit pipeline for offline sync of continuous HR, sleep staging, HRV, RHR, and workouts. • Architected Preserve Mode (read-only) and Trim Mode (durable chunk clearing) for two different sync workflows. • Deployed local AI models for physiological insights without sending sensitive health data off-device.

x70

Founder and Developer

View x70
x70Remote, Germany
Jun 2024 - Present
Full-Stack DevelopmentNext.jsTechnical ArchitectureBrand SystemsProduct Engineering

x70 is my personal brand and design-driven web agency — the shell I use to sell websites, ship products, and run the wider ecosystem. • Design, build, and manage websites for local businesses. • Built the multi-site network: Home, Apps, Portfolio, Links, Boop, Skirack, Social, Design, and Tools on a shared stack and brand system. • Maintain centralized design CDN assets, privacy-first tools, and product surfaces alongside client delivery.

Brainlab

Working Student

View Brainlab
BrainlabMunich, Germany
Nov 2024 - May 2026
Robot FrameworkPythonTest AutomationREST APIsSeleniumCI/CDNetworking

I joined Brainlab in November 2024 as a Working Student and worked with the Snke team through May 2026, focusing on Quip, a compact operating-room computer for streaming, viewing, recording, and remotely sharing video captured by Quip Eye. • Wrote Python and Robot Framework tests for user-interface workflows and REST API endpoints. • Built reusable test libraries and integrated automated coverage across CI pipelines, reducing repetitive manual testing. • Tested Chromium-based workflows and network-dependent behavior, and contributed targeted product bug fixes.

Biosensors

Internship

View Biosensors
BiosensorsStuttgart, Germany
Aug 2024 - Aug 2024
Biomedical Engineering

In summer 2024, I completed a biomedical engineering internship at Biosensors focused on a vacuum-catheter concept for minimally invasive mitral valve fixation. • Modeled and printed four catheter-tip prototypes with a Formlabs 3 resin printer. • Tested attachment, suction stability, and needle access on pericardial tissue, then used each failure mode to guide the next geometry. • Documented a preliminary bench result: Prototype 4 held the tissue during needle passage and improved needle orientation in that setup. The study did not establish clinical readiness or patient outcomes.

DroneSH

Co Founder and Developer

DroneSHScharbeutz, Germany
Jun 2024 - Dec 2024
Web DevelopmentIn-person Marketing

DroneSH was a side project I co-founded with a friend, providing drone service packages to clients both locally and beyond our city. • Co-founded DroneSH, a specialized service provider offering aerial data capture, including 3D building scans, high-resolution videography, and professional imaging to clients in local and extended regions. • Developed and maintained an online portfolio showcasing past projects and visual content to document the project's capabilities and completed work.

Hir3d

Project Lead Developer

View Hir3d
Hir3dRemote, Madrid, Spain
Mar 2024 - Dec 2025
Project ManagementMachine LearningWeb DevelopmentTeam Leadership

I joined Hir3d when a good friend asked me to help develop an idea for automating hiring. • Led the development of an AI-assisted recruitment platform for resume analysis, candidate discovery, and evaluation. • Built recruiter workflows for creating job searches, reviewing candidates, and managing organizations and background jobs. • Developed the candidate portal for CV uploads, structured document analysis, and correction requests. • Managed the technical roadmap and multi-app infrastructure across the marketing site, recruiter dashboard, and candidate experience. • The original hir3d.one domain is no longer active; the frontends remain as Vercel portfolio demos.

Exams

Founder and Developer

View Xams
ExamsRemote, London
Feb 2023 - Mar 2025
Web DevelopmentCollaboration

I worked as Founder and Developer on Xams from February 2023 through March 2025. The experience is listed as Exams on LinkedIn; Xams is the product name used throughout this portfolio. • Built ExamTimer / ExamManager with a close friend to streamline exam timing, scheduling, and school organization workflows. • Built classroom timer flows (reading, writing, extra time) and staff dashboards for creating and running papers. • Iterated through multiple product generations (timer app, Next.js manager, SaaS rewrite); the original domain is offline and the frontends remain as Vercel portfolio demos.

Founder and Developer

BitStoreOfflineRemote, London
Jan 2020 - Jun 2024
PythonDiscord APITKinter

At BitStore, I developed and managed Discord tools that were offered in both free and premium versions: • Developed Discord tools utilizing Python and Go, providing free programs on GitHub while offering premium versions through the project website. • Built and maintained features across the free and premium versions. • Managed the development lifecycle from initial ideation through launch and maintenance.

Internship

Helmholtz InstituteAachen, Germany
2018

In 2018, I completed a placement at the Helmholtz Institut, where a connection through a family friend provided me with an opportunity to explore technological advancements: • Gained exposure to research initiatives and observed practical applications of scientific concepts. • Explored emerging technologies, including hands-on insights into 3D printing and its applications.

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