Lazaro F

BMS & Automated HVAC System Architect | Freelance consultant

Grupo SIA • Freelance

Jul 2025 - Present • 1 yr 1 mo

To pivot toward the Building Management Systems (BMS) market, you want to position yourself as the person who makes different systems "talk" to each other. By focusing on MQTT and Modbus, you highlight a modern, data-driven approach that appeals to SMEs looking for flexible, non-proprietary solutions. BMS & HVAC Systems Architect | Freelance Consultant I provide specialized consultancy and technical architecture for Building Management Systems (BMS), helping SMEs transform fragmented HVAC components into unified, automated environments. I bridge the gap between mechanical hardware and digital oversight, focusing on open, efficient communication protocols. Consultancy & System Design Integrated Architecture: Designing control strategies for HVAC systems that prioritize energy efficiency and equipment longevity. Protocol Strategy: Consulting on the transition from siloed hardware to interoperable networks using Modbus RTU/TCP for local control and MQTT for lightweight, cloud-ready data transport. SME-Focused Solutions: Advising on cost-effective automation upgrades that avoid "vendor lock-in" by utilizing open-standard hardware. Implementation & Integration PLC/Controller Development: Building and deploying custom logic for climate control, air handling, and boiler/chiller sequences. Modbus Network Optimization: Expert configuration of Modbus RTU/TCP networks to ensure high-speed data polling and reliable sensor feedback. IoT Connectivity: Implementing MQTT brokers and publishers to streamline data flow between floor-level HVAC sensors and remote monitoring dashboards. System Refinement: Hands-on troubleshooting of legacy control loops and upgrading outdated logic to meet modern comfort and efficiency standards.

Automation Systems Architect & Consultant

Fiverr • Freelance

Apr 2025 - Present • 1 yr 4 mos

As an independent Automation Systems Architect, I bridge the gap between high-level operational strategy and floor-level execution. I don’t just write code; I design scalable control architectures that align with the full Automation Pyramid—from Level 0 (Sensors/Actuators) to SCADA and IT/OT integration. Consultancy & Architectural Services System Architecture Design: Advising on the selection and integration of PLC/HMI hardware to ensure long-term scalability and ease of maintenance. IT/OT Convergence: Consulting on data flow between shop-floor hardware and higher-level monitoring systems, ensuring seamless communication across protocols. Process Optimization Strategy: Analyzing existing legacy systems to identify bottlenecks and recommending targeted logic or hardware redesigns to improve reliability. Engineering & Implementation Full-Stack PLC Development: End-to-end development and deployment of control logic (Ladder, Structured Text) tailored to specific industrial requirements. Advanced Troubleshooting: Expert-level diagnosis of complex control loops, signal mapping issues, and intermittent system failures. HMI/SCADA Deployment: Designing intuitive interfaces that provide actionable data for operators while maintaining robust backend control. Field Integration: Validating Level 0 instrumentation and Level 1 control panels to ensure hardware-to-software fidelity.

Co Founder | Project Leader

Automatas SRL • Part-time

Nov 2023 - Nov 2024 • 1 yr

• Co-founded and operated a small engineering services business, delivering automation solutions, control panel redesigns, electrical maintenance, and basic PV system designs for residential and industrial clients. • Led the design and implementation of short-cycle automation projects, including PLC programming, field device integration, and electrical panel upgrades. • Managed BOM creation, material procurement, commissioning, and documentation for complete small-scale automation systems. • Oversaw contract negotiation, client management, and brand positioning, contributing to the technical and business growth of the company. • Collaborated closely with clients to analyze needs, propose technical solutions, and deliver projects on time and within budget. • Gained entrepreneurial experience in leadership, multi-role management, and end-to-end project execution in the engineering sector.