01
Edge Firmware & Sensors
Low-level C/C++ and MicroPython firmware engineered for STM32 and ESP32 with power optimization and sensor calibration.
Head of Technology @ Powerpay Africa • Open for Leadership & Projects
Engineering Connected Systems from Silicon to Cloud.
Head of Technology • IoT Systems • Full-Stack Cloud
I am Jeff Tarimo, Head of Technology and IoT Systems Engineer based in Nairobi, Kenya. I direct technical strategy and architect industrial-grade hardware-to-cloud telemetry pipelines, smart energy metering, embedded firmware (STM32, ESP32), and scalable Django/Node.js cloud backends.
Head of Tech
Powerpay Africa
4+ Years
IoT & Cloud Systems
1,000+
Connected Devices
99.9%
Telemetry Uptime
Head of Technology
STM32 • ESP32 • Firmware
Django • Time-Series • Cloud
Engineering Philosophy
End-to-End Edge-to-Cloud Architecture
Building reliable IoT products requires deep expertise across silicon hardware, firmware protocols, resilient telemetry, and high-throughput cloud storage.
02
Telemetry & Protocols
Reliable multi-protocol field communication spanning LoRaWAN, Cellular (GPRS/LTE-M), MODBUS RS485, and MQTT.
03
Cloud & Time-Series DBs
High-throughput ingestion pipelines powered by Django, Node.js, ClickHouse, and InfluxDB on robust Linux infrastructure.
04
Dashboards & Control
Responsive dashboards, real-time alerting via Node-RED, and cross-platform mobile diagnostics built with Flutter & React.
Career Journey
Hands-On Engineering & Technical Leadership
Proven track record directing technology strategy, leading hardware & software teams, deploying smart energy meters, and maintaining high-reliability sensor fleets.
Head of Technology
Powerpay Africa LimitedLeading technology vision, infrastructure scalability, and strategic IT planning across hardware and software engineering teams.
- Direct overall technology vision, infrastructure scaling, strategic IT planning, and architectural roadmaps across hardware & software.
- Lead engineering teams across firmware, cloud backend, and mobile apps to deliver smart energy metering and financing systems.
- Orchestrate tech stack decisions, cloud operations (AWS/Azure/Ubuntu), and technical delivery to align with company growth goals.
- Manage cross-functional hardware and software teams toward product milestones and enterprise client commitments.
Head of IoT
Powerpay Africa LimitedDirected end-to-end IoT engineering, firmware architecture, smart energy telemetry, and cloud integration.
- Spearheaded firmware engineering using C++ and MicroPython for smart energy meters and edge telemetry controllers.
- Deployed multi-protocol communication pipelines utilizing MODBUS (RS485), GPRS, Wi-Fi, and BLE for continuous remote asset monitoring.
- Architected scalable backend services and REST APIs with Node.js, Django, ClickHouse, and PostgreSQL on Ubuntu AWS/Azure environments.
- Built real-time monitoring user interfaces and mobile diagnostics tools using React and Flutter.
- Automated data normalization and exception alerts via custom Node-RED workflows, eliminating manual intervention.
Head of IoT
Upande LimitedManaged product strategy and hardware delivery across municipal and agricultural IoT initiatives.
- Directed product strategy and hardware delivery roadmaps as Product Owner across municipal and agricultural remote sensing initiatives.
- Streamlined device testing and dispatch pipelines using Node-RED, reducing commissioning time across field deployments.
- Liaised with external enterprise stakeholders to translate complex monitoring requirements into scalable IoT architectures.
IoT Engineer
Upande LimitedField deployment, sensor calibration, firmware maintenance, and time-series analytics.
- Assembled, calibrated, and deployed industrial sensor nodes (water level, ultrasonic, flow, weather) using LoRaWAN and GSM.
- Proactively maintained field device fleets, diagnosing power faults and issuing remote firmware updates to maximize uptime.
- Configured InfluxDB time-series instances for sensor data ingestion, enabling real-time analytics and client dashboard visualizations.
Electrical Engineering Intern
New Kenya Co-operative CreameriesIndustrial plant electrical maintenance, motor control circuits, and automation troubleshooting.
- Carried out scheduled electrical preventive maintenance across industrial dairy processing plants, reducing machine downtime.
- Assisted senior engineers in troubleshooting motor control panels, relay boards, and industrial automation equipment.
Core Stack
Technical Expertise & Tooling
A comprehensive multidisciplinary stack spanning low-level embedded hardware, networking protocols, cloud platforms, and modern web frameworks.
Microcontrollers & Hardware
STM32 & ARM Cortex
90%
ESP32 / ESP8266 (Wi-Fi/BLE)
92%
Raspberry Pi & SBCs
88%
Arduino Prototyping
95%
Circuit Design & PCB Layout
82%
Sensor Integration & Calibration
90%
STM32
ESP32
Raspberry Pi
Arduino
Sensors
KiCad
Oscilloscopes
Firmware & Protocols
C / C++ Embedded
88%
MicroPython / CircuitPython
92%
MODBUS (RS485 / RTU / TCP)
90%
MQTT & WebSockets
94%
UART / SPI / I2C Buses
92%
HTTP / HTTPS REST APIs
95%
C/C++
MicroPython
MODBUS
MQTT
UART
SPI
I2C
FreeRTOS
Wireless & Networking
LoRaWAN (The Things Network, ChirpStack)
92%
Cellular IoT (GPRS / LTE-M / NB-IoT)
88%
Bluetooth Low Energy (BLE)
86%
Wi-Fi Mesh & Station
90%
Sigfox
80%
CCNA Routing & Switching
85%
LoRaWAN
GPRS / 4G
BLE
Wi-Fi
Sigfox
CCNA
TCP/IP
Backend & Cloud Infrastructure
Python (Django / Django Channels / FastAPI)
94%
Node.js & Next.js
82%
Linux Server Administration (Ubuntu)
88%
AWS & Azure Cloud Services
82%
Redis In-Memory Caching & Queues
85%
RESTful API Design & OpenAPI
92%
Django
Python
Node.js
Redis
AWS
Azure
Ubuntu Linux
Gunicorn
Databases & Time-Series
InfluxDB (Time-series telemetry)
92%
ClickHouse (High-throughput analytics)
86%
PostgreSQL & PostGIS
88%
MySQL / MariaDB
85%
Data Normalization & Retention Policies
90%
InfluxDB
ClickHouse
PostgreSQL
MySQL
Time-Series
SQL Optimization
Frontend, Mobile & Automation
Node-RED Automation & Alerting
95%
Flutter & Flet Mobile Diagnostics
85%
Tailwind CSS & Modern HTML5
90%
JavaScript & HTMX
88%
Technical Leadership & Architecture
92%
Node-RED
Flutter
Tailwind CSS
HTMX
React
JavaScript
Technical Strategy
Featured Projects
Selected Systems & Applications
Real-world full-stack products, real-time telemetry dashboards, and high-concurrency messaging applications.
Full-Stack Web Platform
SVS Multi-Vendor Service Platform
A comprehensive full-stack Django enterprise platform enabling service providers and clients to connect, manage bookings, process secure payments, track service milestones with real-time updates, and monitor performance analytics.
Key Architecture Highlights:
- Dynamic provider verification & tiered access control
- Real-time booking status transitions via HTMX
- Integrated payments and financial transaction logging
- Comprehensive analytics reporting dashboard
Django
PostgreSQL
HTMX
DaisyUI
Tailwind CSS
JavaScript
Docker
Real-Time Web & Messaging
Real-Time WebSocket Communication Suite
High-concurrency chat and messaging application built on Django Channels and WebSockets. Features instant messaging, user presence indicators, rich user profiles, and media sharing pipelines.
Key Architecture Highlights:
- Bi-directional WebSocket communication with Daphne ASGI
- User presence and typing state synchronization
- Responsive UI with modern drawer layouts and modal views
- Secure session authentication and channel layers with Redis
Django
Django Channels
ASGI / Daphne
Redis
WebSockets
Flowbite
JS
IoT & Mobile Diagnostics
IoT Energy Analytics & Remote Telemetry App
Cross-platform mobile and desktop analytics tool that ingests real-time power metrics from field energy meters, visualizes high-frequency time-series data, and provides low-latency remote relay switching controls.
Key Architecture Highlights:
- Live time-series metric streaming from InfluxDB
- Remote bidirectional relay control and telemetry status
- Anomaly detection alerts and automated threshold triggers
- Lightweight cross-platform client built with Python Flet & Flutter
Python
Flet
Flutter
InfluxDB
Firebase
MQTT
MODBUS
Academic & Professional Qualifications
Education & Industry Certifications
Rigorous engineering foundations complemented by industry-recognized credentials.
Degrees & Higher Education
M.Sc. in Computer Science
Aug 2026 – Dec 2027 Zetech University
Ruiru, Kenya
Focusing on distributed systems, advanced algorithms, edge computing architectures, and cloud scalability.
B.Sc. in Electronics & Computer Engineering
Graduated 2021 Jomo Kenyatta University of Agriculture and Technology (JKUAT)
Juja, Kiambu, Kenya
Comprehensive foundation in microprocessors, digital signal processing, embedded systems, telecommunications, and software engineering.
Certifications & Training
CCNA (Routing & Switching)
2018AFRALTI
Networking
Python & Web Development
2020Institute of Software Technology (IST)
Software
Android App Development
2020Institute of Software Technology (IST)
Mobile
Spoken & Written Languages
English: Fluent
Swahili: Fluent
Get In Touch
Start a Project or Request Technical Consultation
Whether you need technical leadership, IoT firmware development, telemetry pipeline design, or full-stack cloud platforms.
Direct Channels
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