24.06.2026 aktualisiert
100 % verfügbar
Senior Backend Python Engineer
Thalwil, Schweiz
Nur Remote
M.Sc. in Computer Science and Technics (Education Specialization)Über mich
Backend Engineer, 6+ yrs building IoT and SaaS platforms. Core engineer on Televend - automated retail used by Coca-Cola, Selecta & Julius Meinl. Worked with energy tech at Eturnity AG, Switzerland. Python, FastAPI, Django, PostgreSQL, Docker. Remote, independent, reliable. Available immediately.
Skills
AI AgentsHTMLJavaScriptCSSContinuous DeliveryContinuous IntegrationDebuggingDjangoPythonProject Management SoftwareFlaskVue.jsBackendAWS ECSGitLab
Backend Engineering with Python
Extensive experience building high-performance backend services using Python frameworks including FastAPI, Django, and Flask. Designed and deployed scalable REST APIs and service architectures for data-intensive distributed systems, IoT platforms, and enterprise SaaS products.
IoT & Connected Systems
Backend engineering for IoT platforms and connected device infrastructure. Built data pipelines and APIs for real-time device communication, automated retail systems, and SaaS platforms serving enterprise clients including Coca-Cola, Selecta, and Julius Meinl.
PostgreSQL & Data Modeling
Advanced knowledge in PostgreSQL data modeling, schema design, performance tuning, and query optimization. Proficient in ORM usage with Django ORM and SQLAlchemy, as well as database migrations using Alembic.
Cloud-Native Deployments & DevOps
Hands-on experience with cloud-native deployments on AWS including IAM, S3, ECS, and RDS. Skilled in Docker containerization, CI/CD pipeline setup and optimization, and environment configuration for production-grade services.
Automated Testing & Reliability
Experienced in maintaining system stability through automated testing with pytest, observability, and clean code standards. Production debugging, incident investigation, and reducing resolution time through tooling and automation.
Microservices & System Design
Experience supporting architectural migrations from monolithic Django applications to microservices using FastAPI and Flask. Knowledgeable in API gateway and proxy design, service integration, and system design principles.
Authentication & Security
Implementation of authentication systems using JWT and OAuth. Built in-house authentication solutions and contributed to secure API design across multiple production environments.
Celery & Asynchronous Task Processing
Proficient in asynchronous task management using Celery, enabling efficient background processing and improved system responsiveness in distributed backend architectures.
Tools & Workflow
Proficient with Git, Jira, Agile and Scrum environments, code reviews, API documentation, versioned API design, Postman and API testing tools, and Linux command line operations.
Frontend Technologies
Familiar with JavaScript, React, Next.js, Vue.js, and Node.js. Experience integrating backend services with React-based frontends and contributing to full-stack feature delivery.
AI & LLM Integration
Experience integrating multi-provider LLM infrastructure including Gemini and Claude with cost optimization strategies. Built AI-driven features such as structured data extraction and intelligent matching.
Sprachen
DeutschgutEnglischverhandlungssicherKroatischMuttersprache
Projekthistorie
Built and deployed a website for a medical practice in Gattikon, Switzerland using Next.js, integrated with the client's existing Webland cloud infrastructure. Delivered a full website redesign and restructuring for a community organisation in Switzerland. Currently building an AI-powered job application pipeline - processing job descriptions with LLM integration for automated extraction and intelligent matching. Developed backend services with FastAPI and PostgreSQL. Integrated multi-provider LLM infrastructure (Gemini, Claude) with cost optimization. Containerised services with Docker and CI/CD.
Developed and maintained Django-based backend services with complex business logic for energy calculations and simulations. Enhanced service integration and backend workflows involving AWS S3. Improved system observability and stability through rigorous root-cause analysis, significantly reducing incident resolution time for production services. Built internal tooling that reduced incident resolution time by 30%. Translated customer requirements into technical solutions, ensuring alignment between business goals and system architecture.
Supported architectural migration from Django monolith to microservices (FastAPI / Flask). Containerised services using Docker, improving deployment workflows and release speed by 40%. Mentored junior developers and conducted code reviews to ensure high standards of code quality and maintainability. Ensured the stability and maintainability of complex FastAPI services by enforcing clean code standards via uv, Ruff, and comprehensive type-hinting. Improved database performance and test automation (PostgreSQL, pytest), reducing CI pipeline runtime by 30%.