PSJ-2026 · REV A · psjacome.com
PHOTO
COMING SOON

P.S. Jácome

Full-Stack IoT Solution Architect · Embedded Systems Engineer

I design end-to-end industrial IoT ecosystems — from ultra-low-power hardware and firmware to cellular & satellite telemetry and the cloud platforms that turn field data into decisions. Field-proven in maritime logistics and cargo security since 2018.

LANGUAGES — Spanish native · English professional · French in progress

§1

Business Value Delivered

Operating characteristics — measured in the field, not simulated
ParameterValueConditions
Remote-deployment maintenance cost $0 / OPEX-free 1W solar energy harvesting; devices field-active 6+ years without battery service
Satellite data cost reduction up to 85% Local payload compression & edge decision logic before transmission
Asset protection track record since 2018 Real-time cellular/satellite anti-theft tracking, maritime & container logistics
Time-to-market for new verticals days, not months Modular hardware core adaptable across industries
§2

Core Technical Skills

Microcontrollers

Nordic nRF52840 (ARM Cortex-M4), Microchip PIC ultra-low-power series

Connectivity

4G LTE, 2G, satellite (Globalstar Simplex, Iridium SBD), Bluetooth 5 / BLE

Hardware Design

Schematic capture, low-power optimization, PMICs, solar energy harvesting

Cloud & Backend

PostgreSQL with time-series optimization, data-ingestion pipelines, Node.js APIs

Frontend

Rapid-prototyped industrial dashboards, AI-assisted web development

Operations

Self-hosted Linux infrastructure, deployment & process automation, PM2/Nginx

§3

Proven Track Record

PRJ-012018 – Present
Lead HW/FW Architect

Autonomous Maritime Satellite Telemetry System

Fleet-tracking IoT node powered entirely by a 1W mini solar panel: ~35,000 successful satellite transmissions per device per year (15-minute intervals) within a 100mA peak-current budget. Hundreds of devices active in the field.

PIC MCU · Globalstar transceiver · custom PMIC · PostgreSQL

Field-proven · 6+ years zero battery maintenance
PRJ-02Embedded Systems Consultant

High-Security Cellular Cargo Trackers

Two generations of covert container-tracking hardware for cargo-theft mitigation. The next-gen variant aggregates local BLE sensor data inside the container on an nRF52840 before retransmitting over 4G/2G, with tamper-detection hardware throughout.

nRF52840 · 4G LTE/2G modems · tamper detection · PostgreSQL

In production
PRJ-03Full-Stack Developer

Logistics & Manufacturing Management Platforms

Self-hosted web platforms managing container-protection operations (~2,000 containers/month) and multi-project manufacturing workflows — order lifecycle, real-time GPS ingestion, geofencing, WhatsApp bot integration and automated notifications.

React · Node.js/Express · PostgreSQL 16 · Linux VPS

In daily operation
§4

Concept Roadmap

AgroTech — Satellite Livestock Asset Protection

Adapting the field-proven maritime telemetry core into a rugged collar enclosure for cattle tracking. Firmware-based geofencing triggers satellite alerts only on perimeter breach — protecting livestock in remote areas with zero cellular coverage.

* Concept validation stage. Frontend UI mockups simulated; hardware core field-proven.