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Marco J. — Senior Backend Engineer from Italy

Marco J.

Senior Backend Engineer

Italy 6+ years 4000 - 7000 EUR per month
Actively lookingNew to Platform
Languages
EnglishChineseItalian
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About

Marco J. is a seasoned Software Engineer with over a decade of experience in developing Python and AI-driven backend systems. He specializes in crafting scalable architectures and optimizing performance for production-grade AI integrations. At Rösler Software-Technik GmbH, Marco engineered backend services using FastAPI, creating microservices for GPS tracking and telemetry. During his tenure at Noble BX LLC, he developed LLM-powered systems for analyzing scientific papers and crafted RAG pipelines for document evaluation. Prior to this, at Staymenity LLC, he focused on backend APIs for property automation and message suggestions. Marco holds a B.Sc. in Computer Science from Fudan University and holds certifications in Prompt Engineering and Advanced Python.

Experience

  • Backend Engineer

    Rösler Software-Technik GmbH · 2025 — Present
    Created backend services for the Obserwando platform utilizing FastAPI. Developed scalable microservices for GPS tracking, telemetry ingestion, and equipment monitoring. Enhanced PostgreSQL queries and async pipelines for real-time device data. Strengthened reliability via Pytest coverage, Pydantic validation, and typed architectures.

  • Software Engineer | AI & Python

    Noble BX LLC · 2024 — 2025
    Constructed LLM-powered systems to evaluate scientific papers for logical fallacies and quality concerns. Developed and implemented RAG pipelines for document retrieval, assessment, and contextual scoring. Created automated text-analysis pipelines integrating OpenAI models with filtering, validation logic, and quality scoring.

  • Senior Full Stack Developer

    Staymenity LLC · 2022 — 2023
    Engineered backend APIs using FastAPI to facilitate booking, messaging, and property automation flows. Devised LLM-based message automation and customer support reply suggestions. Built automated ETL and data-cleaning pipelines to enhance the accuracy of booking and revenue analytics. Optimized CI/CD workflows through Docker and automated deployments.

Skills & Expertise

AI and Data ScienceAI EngineerPython DeveloperBackend Developer

Education

  • Bachelor of Science in Computer Science
    Fudan University · 2011 — 2015