Professional Summary

• Senior Full-Stack & Software Engineer with deep experience designing and delivering scalable, production-grade systems across backend, frontend, and cloud environments ? from architecture and API design to embedded firmware, cloud platforms, and mobile applications. Skilled in Python, Django, REST API development, API client generation, Python packaging, GitLab/GitHub CI/CD, Docker, containerized workflows, PostgreSQL, React/Next .js, TypeScript, Vite/Webpack, automated testing (Pytest/Jest), MQTT, and embedded systems.
• Over 8 years of hands-on experience building multi-tenant SaaS platforms, real-time sensor data pipelines, automation engines, smart-building integrations (Google Home, Home Assistant), and secure cloud infrastructures. 
• Strong ability to translate complex requirements into clean system architectures, modular software, and reliable end-to-end solutions.
• Expert in debugging complex distributed systems, optimizing performance, and delivering high-availability products, containerized microservices, and robust API communication. Experienced in MBSE modeling (Capella/Arcadia), data validation, firmware OTA flows, and architecting IoT-cloud interoperability.
• Proven problem-solving mindset, strong ownership, and a track record of building systems that combine embedded intelligence, cloud scalability, and polished user experiences.

Technical Skills

Frameworks:

• Backend ? Django
• FastAPI
• Node.js
• Frontend ? React.js 
• Next.js 
• TypeScript
• Vite
• Webpack
• Jest
• React Testing Library
• React Hook Form
• Formik
• AG Grid
• Elasticsearch (basic)
• responsive UI/UX

Cloud & DevOps:

• Docker
• Linux/Ubuntu
• Docker-Compose
• Git/GitHub
• GitLab CI/CD
• GitHub Actions
• containerized deployments
• automated build pipelines

APIs & Protocols:

• REST
• WebSockets
• MQTT over TLS
• authentication & authorization
• Swagger/OpenAPI

Testing:

• Pytest
• Jest
• Postman
• Swagger/OpenAPI
• integration testing
• CI-based automated test workflows

Packaging & Distribution:

• Python packaging
• wheel build
• local PyPI repositories
• dependency management

Mobile Development:

• Ionic Framework
• Capacitor
• Firebase push notifications

Data Processing:

• Pandas
• NumPy
• real-time sensor data pipelines
• rule-based anomaly detection

IoT & Embedded:

• ESP32
• MQTT
• OTA
• I2C/SPI/UART
• firmware debugging
• sensor drivers

Architecture & Modeling:

• Multi-tenant SaaS
• API design
• MBSE (Capella, Arcadia)
• modular architectures

Professional Experience

2024 ? Present

Role: Senior Full-Stack & IoT Engineer 

Customer: NodeByNode Systems Design UG

Tasks:

• Develop full-stack applications using Python/Django, React , PostgreSQL and Mongodb within a multi-tenant SaaS architecture.
• Engineer ESP32 firmware (C++), MQTT over TLS, OTA updates, and embedded sensor integrations.
• Build mobile apps using Ionic/Capacitor integrated with cloud backends.
• Design secure APIs, real-time pipelines, and scalable backend services.
• Deploy Dockerized infrastructure on Linux servers with SSL/TLS and monitoring.
• Integrated CI/CD pipelines (GitLab CI/GitHub Actions) for automated testing, container builds, and deployment workflows.
• Lead system design and MBSE modeling for IoT architectures.

2021 ? 2024

Role: Software Systems Engineer (MBSE) 

Customer: TU Dresden & University of Cambridge

Tasks:

• Designed and implemented end-to-end software systems based on MBSE models, translating Arcadia/Capella architecture into executable software components.
• Developed a Python/Django-based computation engine for multi-layer system evaluation, including data pipelines, rule-based logic, and API endpoints for integration with external applications.
• Built a Vue.js frontend for interactive visualisation, user input, and real-time assessment results, enabling full-stack delivery of the MBSE platform.
• Developed rule-based and data-driven evaluation engines, contributing to early-stage logic used in decision-support and AI-adjacent systems.
• Authored technical documentation, architecture specifications, and system definitions for large socio -technical environments.
• Ensured high-quality API design with clear data contracts, validation rules, and integration test coverage.
• Collaborated with interdisciplinary engineering, clinical, and research teams to deploy the platform in real-world case studies and validate system behaviour.

2017 ? Present

Role: Freelance Full-Stack Engineer

Tasks:

• Designed and developed full-stack web applications using Django, FastAPI, React, Vue.js, Next.js, and TypeScript.
• Developed backend services and utility scripts using Node.js for integration, automation, and API workflows.
• Built REST APIs, authentication workflows, multi-tenant database structures, and real-time data pipelines.
• Developed scalable backend systems with PostgreSQL, MongoDB, Redis, and Docker-based deployments.
• Led IoT integrations including ESP32 firmware development, MQTT workflows, sensor processing pipelines, and over-theair (OTA) update mechanisms.
• Consulted for clients on software architecture, cloud infrastructure, and system design.
• Delivered data-driven dashboards, analytics tools, and visualization solutions using Python, Pandas, and frontend JavaScript frameworks.
• Collaborated remotely with international teams, delivering end-to-end project execution from requirements to deployment.