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Lena GolgolniaLG

Lena Golgolnia

Full-Stack Developer | Python, React, Docker, IoT

€780/day
1 project
Dresden, DE
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Lena

I am a Full-Stack Developer with over 8 years of experience in developing modern, scalable software solutions – from web applications to complex IoT systems. My technological focus is on Python (Django), React.js, Docker, MQTT, PostgreSQL, as well as the integration of sensors and embedded systems (ESP32).

I develop API-based backend services, responsive frontends, and secure cloud architectures. Furthermore, I have extensive experience in IoT development, including firmware programming, real-time data processing, and smart home integration (Google Home, Home Assistant, Matter).

Additionally, I create mobile apps for Android and iOS based on React + Ionic/Capacitor, which interact directly with cloud backends and IoT devices.

Through my doctorate and international research experience (TU Dresden & University of Cambridge), I bring an analytical, system-oriented approach and high precision in software and data modeling.

What I offer:
• Full-Stack Development (Python/Django + React)
• Building and optimizing APIs, databases & cloud architectures
• IoT Development: Sensor integration, MQTT, ESP32, Embedded Systems
• Mobile App Development for Android & iOS (React + Ionic/Capacitor)
• Docker-based deployments
• Data analysis & modeling (Python)
• Technical consulting for Smart Buildings, indoor air quality, and automation

I look forward to projects where I can combine modern technologies, systems thinking, and high-quality software development.
  • German

    Fluent

  • English

    Native or bilingual

Can work on-site
Dresden (up to 50km)

Experience

  • NodeByNode Systems Design
    Senior Full-Stack Software Engineer (Python / Django / React)
    April 2024 - Today (2 years and 2 months)
    Dresden, Germany
    Development of multi-layered end-to-end software landscapes with backend components based on Python/Django, PostgreSQL, Mongo DB, modularly structured API structures, and modern React frontends. Implementation of cross-platform mobile apps for Android and iOS (Ionic/Capacitor) and construction of containerized cloud environments with Docker and multi-tenant architecture.

    Integration of distributed data flows, model-based processing steps, and structured communication paths. Additionally, implementation of technical low-level modules, including firmware development for ESP32, connection of various sensors, and secure transmission of time-critical measurement data within scalable software platforms.

    Fine-tuning of the entire pipeline from data acquisition through backend processing to visual representation in web and mobile interfaces.
    Docker-Compose iOS Android ESP32 Python (Programming Language)
  • UNIVERSITY of CAMBRIDGE
    Research Assistant – Computational Modeling & Software Development
    November 2023 - April 2024 (5 months)
    Cambridge, England, United Kingdom
    Collaboration on the development of a model-based software framework for analyzing complex environmental and health data. Building computational models, developing Python-based analysis components, validating data structures, and providing technical support in implementing digital assessment tools. Collaboration with interdisciplinary teams at the Engineering Design Center (EDC).
    Python (Programming Language) FullStack Development Python Programming Python/Django
  • TU Dresden
    Research & Software Development (MBSE & Computational Modeling)
    December 2021 - September 2023 (1 year and 9 months)
    Dresden, Germany
    Collaboration on the development of software-based analysis and assessment systems in the field of Model-Based Systems Engineering (MBSE). Building data models, developing Python/Django-based backend components, implementing interactive tools for scenario assessment, and integrating sensor data and spatial parameters. Additionally, support in research, data analysis, and creation of digital prototypes for simulating complex environments.
    Python/Django React.js MBSE Django Rest Framework Python (Programming Language)

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Education

  • Doctor of Philosophy (Ph.D.)
    University of Cambridge & TU Dresden
    Fokus auf Model-Based Systems Engineering (MBSE), Computational Modeling und Entwicklung softwarebasierter Bewertungssysteme für komplexe technische Umgebungen.

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