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Fábio Dos Santos FrancoFD

Fábio Dos Santos Franco

IoT & Mechatronics Engineer

€500/day
Mijdrecht, NL
3-7 years

Average response time: 1 hour

About Fábio

Hands-on engineer focused on rapid prototyping and problem-solving.
I design and build functional prototypes spanning firmware, IoT, and mechatronics, combining parametric CAD with embedded development. Strong background in software and cloud architecture enables me to deliver end-to-end solutions — from physical design and electronics to backend services, data flows, and deployment. Used to turning vague ideas into working, testable systems.
  • English

    Native or bilingual

  • Spanish

    Conversational

  • Portuguese

    Native or bilingual

  • Dutch

    Basic

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

Experience

  • Freelance Full-Stack
    IoT & Mechatronics Engineer
    INTERNET OF THINGS (IOT)
    March 2025 - Today (1 year and 3 months)
    Mijdrecht, Netherlands
    Delivering comprehensive R&D and product engineering solutions tailored for startups and SMEs, I bridge the divide between physical hardware and cloud-native software. My expertise spans the entire product lifecycle, transforming initial concepts into robust, connected Proof of-Concepts (PoCs) and manufacturing-ready MVPs.

    Core Responsibilities & Deliverables:
    • • Custom Electronics & PCBA Management:
    ◦ o End-to-end PCB design (Schematic Capture, Layout, DFM) for platforms including ESP32, STM32, and Nordic nRF architectures.
    ◦ o Agnostic sensor integration (I2C, SPI, UART, Analog) for applications such as industrial telemetry, Hall effect positioning, environmental monitoring, and ultra-low-power wearables.
    ◦ o Coordinated PCBA manufacturing with external fabrication partners for fully assembled production runs.
    ◦ o In-house SMD reflow and assembly for rapid prototyping and immediate testing, including moisture-sensitive RGB arrays, BGA/QFN sensors, and wireless SoCs.
    • • Mechatronics & Complex Prototyping:
    ◦ o Design and fabrication of functional electromechanical assemblies using Fusion 360.
    ◦ o Engineering precision motion systems: custom gearboxes, belt drives, and motorized turntables powered by stepper/DC motors and closed-loop control.
    ◦ o Production of engineering-grade parts (Nylon, PC, ABS) tailored for load bearing, heat resistance, and snap-fit tolerances beyond basic enclosures.
    • • Cloud-Native & IoT Connectivity:
    ◦ o Architected vendor-agnostic cloud backends (Kubernetes, Docker) for scalable IoT device management and telemetry ingestion.
    ◦ o Implemented secure edge-to-cloud communication (MQTT/WebSocket) for real-time data visualization, avoiding vendor lock-in.
    • • Selected Projects:
    ◦ o Smart
    PCB design electronic engineering C++ Embedded Systems 3D printing
  • Invers B.V.
    Cloud Architect
    BANKING AND INSURANCE
    August 2022 - March 2025 (2 years and 7 months)
    Voorburg, Netherlands
    As the Cloud Architect at Invers, a leading fintech specializing in banking transaction categorizations for clients in the financial sector, I played a pivotal role in modernizing the organization's systems to meet the demands of a competitive landscape and requirements of enterprise-grade prospect clients.

    Key Contributions:
    • System Modernization and Cloud Migration:
    o Initiated the transition from primarily on-premises infrastructure using an outdated stack to a cutting-edge cloud-based architecture.
    o Led the migration efforts, establishing a robust foundation for highly available systems.
    • Operational Efficiency and Cost Reduction:
    o Successfully orchestrated a 60% reduction in costs while achieving ISO certification for the improved solution.
    o Carefully budgeted hardware resources for services provisioned on Kubernetes, optimizing performance and cost-effectiveness.
    • Security and Compliance Excellence:
    o Implemented a comprehensive security framework leveraging Microsoft's Hub and Spoke network model.
    o Ensured end-to-end encryption through the integration of Istio Service Mesh (mTLS) and automated TLS certificate generation using Let's Encrypt.
    o Deployed Azure Firewall and Defender for Cloud, incorporating automated compliance and security assessments, IPS protections, container scanning, and other measures.
    o Established a unified monitoring dashboard for enhanced oversight of security and compliance metrics.
    • Application Transformation and Optimization:
    o Guided team leads in evolving applications into stateless, cloud-native .NET applications, optimizing resource utilization for faster startup times and improved availability.
    • Disaster Recovery and Business Continuity:
    o Implemented automated backup routines, achieving a 4-hour Recovery Point Objective (RPO) across all data sources.
    o Ensured a rapid 1 hour and 30 minutes Recovery Time Objective (RTO) in the event of complete disaster recovery.
    Microsoft Azure Istio Docker Cloud architect Finance sector
  • parfumado.com
    Head of Technology
    E-COMMERCE
    April 2021 - July 2022 (1 year and 3 months)
    Amsterdam, Netherlands
    As the Head of Technology at parfumado.com, a prominent perfume subscription service catering to approximately 35 thousand active customers across the Netherlands, Belgium, and the UK, I spearheaded the transformation of the technological landscape with a new e-commerce platform. Streamlining processes that would not only accommodate the company's growing customer base but also align with the evolving business strategy.

    • Key Achievements:
    o Successfully launched a bespoke e-commerce platform, tailored to the unique needs of parfumado.com and surpassing the limitations of off-the-shelf solutions like Shopify.
    o Orchestrated the setup of a scalable architecture that ensures low ownership costs and can be efficiently managed by a small team.
    o Enabled a fast-paced and zero-downtime delivery of customizations, laying the groundwork for agile adaptation to the company's strategic evolution.
    o Conducted technical due diligence for the latest funding round with new investors, positioning parfumado.com within the top 20% rank compared to companies analyzed in a similar phase over the past 12 months.
    • Roles and Responsibilities:
    o Led the selection of the technology stack, ensuring alignment with the company's strategic goals.
    o Formulated a comprehensive migration plan for transitioning the customer base from the old platform to the new, minimizing disruptions.
    o Developed a robust strategy for the overall tech ecosystem of the company, aligning it with long-term objectives.
    o Designed and implemented the complete architecture of the solution, prioritizing scalability and cost-effectiveness.
    o Led recruitment efforts to build a dynamic and skilled tech team.
    o Provided regular reporting on key tech performance indicators (KPIs) to stakeholders.
    o Implemented an efficient development process to streamline workflows and enhance productivity.
    o Leveraged the new single source of truth to deliver data-oriented insights and analytics, eliminating siloed data sources.
    Tech Lead Marketing E-commerce software architect Cloud architect

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Education

  • Computer engineering
    Federal University of Itajubá (UNIFEI)
    Computer engineering
  • Microsoft Certified Professional Developer (MCPD)
    Microsoft Certified Professional Developer (MCPD)

Skill set

Categories