IoT Smart-Meter Gateway Platform

We are looking for professional expertise within the IoT field. We are looking for a full stack developer that has knowledge in both hardware / microcontroller programming but Is also able to present development capabilities in Web Development.

We are a startup in the Energy and Photovoltaic sector and are looking for trustworthy and professional people with experience to assist us in future development within a long-term business partnership. If you should only have individual skills from the list below, please mention your skillset explictily.

For this project we have a smart energy meter that is connected to raspberry interface which acts as our gateway. The raspberry pi connects via RS485 MODBUS to the smart meter.


The connection between the raspberry pi and the smart meter has already been established and the registers can be read.

(1) Read the necessary energy data and store them locally in a PostgreSQL DB using Python

(2) Using MQTT create and send messages from the PostgreSQL DB to an Azure IoT Hub using secure cetificate based authentication

(3) Replicate the local PostgreSQL DB to a centralized master DB as redundancy via VPN (VPN Server is already in pace)

(4) Evalute and implement an opensource solution to graphically present the collected data into a Web-Dashboard to display graphs, statistics, and additional historic and current calculations and create reports


In your application please send us a short webcam recorded video introducing yourself, your professional field experience, your skills AND explain some comparable reference projects.

Knowdledge Required In:

Modbus, M-Bus, Real Time Operating Systems, Linux, Windows, MQTT, AMQP, Python, Javascript, PHP, Database Design, Database Implementation, Database Replication, Electrical Engineering, Solution Design

Preferable but not required:

Microsoft Azure

Best regards

Skills: Microcontroller, Electronics, Software Development, Internet of Things (IoT), Electrical Engineering, Database Design, Database Management, PostgreSQL, Raspberry Pi

About the Client:
( 5 reviews ) Zurich, Switzerland

Project ID: #34858916

29 freelancers are bidding on average $28/hour for this job

(54 Reviews)

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$20 USD / hour
(26 Reviews)

Hi there, We are company offering development of customized hardware and software. We have rich experience in developing iot products, starting from pcb to smsrt phone apps with backend cloud. Please feel free to cont More

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(80 Reviews)

Hello, We have experience in coding in multiple programming languages including Linux, Windows, MQTT, AMQP, Python, JavaScript, PHP, Database Design. We already developed a IOT project before, please have a look - h More

$20 USD / hour
(10 Reviews)

Hello sir. I am very interested in your proposal. And I have just done such project about Raspberry pi and I am an full stack engineer. I have been working since 2015 for HW/SW programming and I can handle your projec More

$25 USD / hour
(11 Reviews)

I have 12+ years experience in software engineering. I have built multiple enterprise solutions based on enterprise architecture with major .NET and .NET core. I have a great experience in Microsoft SQL Server and Post More

$30 USD / hour
(25 Reviews)

Hi There, I am professional electronics engineer and embedded system expert and have more than 5 years experience in this field. I am experienced in microcontrollers, MOD-BUS, CAN-BUS, Python, Azure and MQTT. Just shar More

$20 USD / hour
(68 Reviews)

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(64 Reviews)
(14 Reviews)

I am an IoT and Wireless Sensor Network Specialist and I have done many projects similar to your project which I am able to demo them. Please check my profile for more information. let us chat for more detailed informa More

$50 USD / hour
(9 Reviews)

Hello, I read your specification carefully. I have rich experience in IoT field, I built many IoT project using ESP32 and Raspberry Pi. I have the almost skills you have listed. 1st : Hardware Design (Schematic Desig More

$20 USD / hour
(6 Reviews)

❤️Hello, sir. I am Anna from Ukraine.❤️ I have read your project requirement carefully and understood what you need. As a highly skilled Full Stack developer, I can help you perfectly. You can see my profile and review More

$25 USD / hour
(8 Reviews)
(6 Reviews)
(1 Review)

Hello, I read your project description. I have 5 years of CTO experience in Fintech and IoT. I developed unattended POS, 4G Telemetry, Next Generation Vending machine and Image Processing with Artificial Intelligence More

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(1 Review)

Hello Robert M.,   We have 20 years of strong experience in Electronics, Microcontroller, Electrical Engineering, PostgreSQL, Software Development, Raspberry Pi, Internet of Things (IoT), Database Design, Database Mana More

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(2 Reviews)

I have 12 yrs experience in iot solutions and have working experience in hardware/software. Please check profile for more details. I have my working iot dashboard setup build using open source tool. I can demo the st More

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(1 Review)

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(1 Review)

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(0 Reviews)

Hi Client, checked (IoT Smart-Meter Gateway Platform) I have strong experience in Electrical Engineering, Electronics, Internet of Things (IoT), Microcontroller, Software Development. I have experience of 10 More

$20 USD / hour
(1 Review)