SHANKAR VASUDEVAN VADAKKEMADHOM
Solution Architect / Senior Staff Engineer
Summary
Results-driven Solutions Architect with over 11 years of experience in the IoT and smart metering industry. Expertise in Wireless/RF Mesh Networking, Real-Time Embedded Systems, and System Integration. Proven track record in the complete product development cycle from definition to shipping. Specialized in providing end-to-end solutions using communication technologies like cellular, NB-IoT, LoRa, Wirepas, Wi-SUN, Zigbee, and Bluetooth. Strong ability to master new concepts and technologies and apply knowledge of industry trends and developments to improve architectural design. Adept at capturing customer requirements and market analysis to deliver innovative products.
Overview
14
14
years of professional experience
5
5
years of post-secondary education
1
1
Language
Work History
Solutions Architect / Senior Staff Engineer
EDMI Limited
08.2022 - Current
- Responsible for solution architecture of end-to-end AMI solution using Wirepas & Wi-SUN RF Mesh
- Design lead to drive RF Mesh Technology for EDMI – Wirepas, Wi-SUN; and to work on outsourcing hardware and firmware developments
- Responsible in the design of end-to-end architecture of AMI solution using Non-IP Data Delivery over NB-IoT network with LwM2M communication protocol
- Responsible for providing a LwM2M Device Management solution for electric, gas and water meters; as well as for Wi-SUN Mesh
- Involved in introduction of eSIM technology to the company and involved in integration works of Remote Subscription Manager to the Head End System
- Member of Patent/IPR team to make sure EDMI’s Harmless Indemnity interests
- Providing supervision and guidance to development teams
- Provide technical support for various tenders and projects
- Help prepare full marketing promotional materials including presentation, data sheets, solution sheets, network performance information and full pricing information for Sales.
Member Technical
uCIFI Alliance
12.2017 - Current
- Represent EDMI on the Technical Workgroup of the uCIFI alliance
- Contributed to the creation of IPSO Objects for electricity 1Phase/3Phase, gas & water meters that were published on OMA Alliance
- Contributed to the creation of test certification plan for certifying the uCIFI devices
- Involved in the RF mesh solution architecture for the smart cities as part of uCIFI alliance.
Staff Design Engineer
EDMI Limited
08.2018 - 08.2022
- Responsible for producing product specifications, monitoring progress of engineering activities and verifying design documents, test reports for the communication products
- Projecting the costs and timeframes of projects, as well as creating work schedules and setting deadlines
- Ensuring products are compliant with industry standards and safety regulations
- Design lead for cellular modems (4G/3G/2G, Cat-M, NB-IoT) developed in partnership with ODM partners
- Design lead to produce a Bluetooth stack that can be used on various resource constrained meters
- Responsible for creating IP Blocks related to communication sub-system to be used on various meters
- Involved in evaluation & selection of SoC for next generation meter platforms
- Bringing up the meter base cards with MbedOS to enable development of IP blocks
- Provide mentoring and technical training to juniors to improve their skills.
Senior Firmware Engineer
EDMI Limited
07.2016 - 07.2018
- Have been the team lead in designing the system architecture for the LoRa based Smart Metering System
- Generated and presented requirements/design specifications to customers
- Have experience in designing RabbitMQ (AMQP) architecture for data transfer between Gateways, Network Server, and the Back-end systems
- Developed the firmware for ARM based microcontrollers (STM32Lxx Series) in C and assembly language based on mynewt OS for reading the meters, controlling the LoRa chip for transmission & reception of the meter data
- Performed device driver development for Sx1276 Interrupt Controller, Timers, I2C, SPI and UART
- Developed a secure bootloader for the LoRa modem & implemented an Over the Air Firmware Upgrade feature
- Designed & developed firmware for LoRa Gateway based on Linux OS and its integration with the Head End System
- Constantly involved with the Hardware Team providing inputs for the hardware design of LoRa Modem
- Developed a LoRa Signal Detector which helped Field Engineers to do Site Surveys efficiently
- Conducted various LoRa demo presentations for both in-house & outside customers.
Firmware Engineer
EDMI Limited
12.2013 - 06.2016
- Developed firmware on TI Sitara ARM Cortem-A8 processor & SiLabs radio chip
- Working closely with teams in UK and Italy to define the exact project requirements and to enable seamless integration with existing system
- Responsible for studying and implementation of the Italian WMBus standard for reading the gas meter on the Data Concentrator (DCU)
- Porting of DLMS Client & Server stack on to the Linux based DCU & implementing the necessary DLMS Objects
- Developing the driver for WMBus card to integrate with the Data Concentrator
- Involved in the testing of the system for EMC, Environmental, Range and WMBus standard compliance
- Worked with antenna manufacturer for evaluating their antenna and to enhance its on field performance for the 169MHz range
- Implemented the system to perform the calibration of the energy meter and to store its values
- Responsible in making sure the meter follows Welmec standards
- Involved in the internal hardware testing of the meter.
Proposal Engineer
01.2013 - 12.2013
- Preparing techno-commercial submission for bidding global tenders on major Oil & Gas Projects
- Pre-sale support, network planning and performing system calculations for the communication systems including Transmission Systems, Security systems, On-plant communication systems, Navigation systems & Radio Systems on major Oil & Gas, Mining projects
- Proficient in generating documents related to Proposal Engineering, Detail Engineering, System Design Basis, System Testing (FAT & SAT), Site Survey for telecom systems.
Senior Executive Engineer
Larsen & Toubro Pvt. Ltd
10.2009 - 12.2011
- Was an integral part of a 5-member team in designing a cost-effective single-phase meter
- Gained good experience in Embedded designing during firmware development for Energy Meters
- Involved in hardware designing of Energy Meters
- Good hands-on knowledge acquired on various communication systems especially Zigbee, PLC & 866 MHz mesh networks
- Good in understanding business processes/requirements and translating them into technical requirements
- Got good interpersonal skills for coordinating with different departments (sales, marketing, testing, production etc.) for the execution of various projects.
Intern
Larsen & Toubro Pvt. Ltd
12.2008 - 04.2009
- Our team of 4 members successfully completed a project titled “Design and Implementation of Data Security in Automated Fuel Dispensing Pumps”.
Education
Master of Science - Electrical Engineering (Communications
National University of Singapore
Singapore 01.2012 - 12.2012
B.Tech - Electronics and Communication
Amrita School of Engineering
India 06.2005 - 05.2009
Skills
C, C, Python, RTOS, Zephyr OS, Mbed OS, Linux, IoT, MQTT, Internet Protocol, DLMS, Device Drivers, FOTA, Smart City, AMI, EN13757, Security, Cryptographyundefined
Additional Information
Availability : 01.05.2023
Date of Birth : 26.08.1987
Timeline
Solutions Architect / Senior Staff Engineer
EDMI Limited
08.2022 - Current
Staff Design Engineer
EDMI Limited
08.2018 - 08.2022
Member Technical
uCIFI Alliance
12.2017 - Current
Senior Firmware Engineer
EDMI Limited
07.2016 - 07.2018
Firmware Engineer
EDMI Limited
12.2013 - 06.2016
Proposal Engineer
01.2013 - 12.2013
Master of Science - Electrical Engineering (Communications
National University of Singapore
01.2012 - 12.2012
Senior Executive Engineer
Larsen & Toubro Pvt. Ltd
10.2009 - 12.2011
Intern
Larsen & Toubro Pvt. Ltd
12.2008 - 04.2009
B.Tech - Electronics and Communication
Amrita School of Engineering
06.2005 - 05.2009
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