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Jillian StrenkJS

Jillian Strenk

Python & Data Developer

€650/day
Rennes, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Jillian

Engineering for movement.

With 6 years of experience in software and acoustic engineering, I have developed technical rigor that I now apply to a sector that fascinates me: fitness and well-being.

Why is my profile hybrid?
I don't just code; I understand the end-user. My current daily life between teaching (10h/week) and development allows me to design technological solutions (Python/Django) that meet real-world needs.

💻 Code Side:
Robust backend development in Python.
Expertise in data processing and acoustics (signal analysis, sound environments).
Design of software architectures for scalable applications.

🏋️ Business Side:
Launching a coaching and entrepreneurship business.
User needs analysis for the development of a fitness tracking application.
Support for physical and mental transformation.

I am currently seeking Python Development opportunities (Freelance or CDI) where I can bring my dual expertise to build innovative, high-performing, and human-centered products.

📩 Let's discuss your tech projects or the future of Fitness Tech!

#Python #SoftwareEngineering #FitnessTech #Backend #Acoustics #PythonDeveloper
  • French

    Native or bilingual

  • English

    Fluent

Remote only
Primarily works remotely

Experience

  • Jillian Strenk
    Entrepreneur
    SOFTWARE PUBLISHING
    May 2025 - Today (1 year and 1 month)
    Rennes, France
    • Architected and deployed alltoolbox.net, a multi-tool web ecosystem; leveraged FastAPI for high-performance asynchronous processing and React Native for a seamless cross-platform user experience.
    • Launched my own wellness brand, developing digital coaching tools as video programs. Built my own coaching website jilloufitness.com with Next.js.
    • Also teach fitness classes and coach clients part-time.
    FastAPI Python React.js SQL Docker
  • Bondzai
    Cofounder - Audio digital signal processing engineer
    TECH
    May 2022 - Today (4 years and 1 month)
    Versailles, France
    - Member of the founding team
    - Development of Tkinter UI for customer evaluations
    - Development of a new AI based product's backend in Python :
    1. Integration of a local SQLite database using SQLAlchemy
    2. Development of socket + websocket APIs to communicate with backend from industrial automate and custom UI
    3. Development of an audio gateway in C to send continuous microphones stream through socket
    Tkinter SQLAlchemy PostgreSQL Sockets Numpy
  • Arkamys
    Audio software engineer
    AUTOMOBILE
    September 2021 - April 2022 (8 months)
    Levallois-Perret, France
    - Working as link partner between DSP - Software - Project teams
    - Development of tests for real-time audio DSP integration (Python):
    1. Development of backend testing and comparing expected vs
    obtained electrical input / output to check if audio DSP has
    been applied correctly, using Scipy
    2. Development of custom UI in PyQt5 to allow running test
    batches automatically
    Scipy Pytest PyQt5

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Education

  • MSc Acoustics Engineering
    Technical University of Denmark
    2018
    - Physical & Electro-acoustic / Audio DSP - Projects in loudspeaker design and machine learning
  • Engineering Diploma
    CentraleSupélec
    2018
    Formation ingénieur généraliste

Certifications

  • Professional Scrum Master 1
    Scrum.org
    2020
    Professional Scrum Master

Skill set (19)

Categories