manimekalai d
@manimekalaid
Embedded firmware developer building secure IoT and medical device connectivity with 3+ years experience.
What I'm looking for
I’m a Firmware Developer with 3+ years of experience in embedded systems, specializing in IoT, wireless connectivity, and medical device firmware development. I focus on dependable protocol implementation, secure communication, and production-ready engineering practices.
At VR Della Smart Tech, I built an OTA firmware update mechanism with secure rollback and version management, plus encryption/decryption modules for local storage and data transmission. I designed WLAN communication in STA mode with mDNS-based hostname resolution, implemented a non-blocking TCP socket server for low-latency data transfer, and integrated REST API and MQTT for mobile and cloud interactions using an RTOS-based multitasking structure.
I’ve also driven IoT product capabilities like MQTT control/status logic and safe OTA packet handling for a home automation smart switch, including persistent state retention and power-loss recovery. I value ownership and deep technical problem-solving—recognized by a Quarterly Excellence Award and as a co-inventor on a patent application for ECG data analysis.
Experience
Work history, roles, and key accomplishments
Freelance Firmware Engineer
Freelance
Sep 2025 - Nov 2025 (2 months)
Designed and developed UI code for STM32 Riverdi display boards using TouchGFX and STM32CubeIDE. Collaborated with clients on requirements, managed reviews via GitHub pull requests, and iterated based on feedback.
Jr. Embedded Firmware Engineer
VR Della Smart Tech Pvt Ltd
Nov 2022 - Aug 2025 (2 years 9 months)
Developed embedded firmware for medical and IoT products, including OTA update mechanisms with secure rollback and version management. Implemented encrypted data handling and WLAN STA connectivity using mDNS, along with REST API/MQTT integration and an RTOS-based multitasking design.
Embedded Software Engineer
The Petal Automations
Feb 2022 - Nov 2022 (9 months)
Designed embedded firmware for multiple IoT and security products, integrating external peripherals such as RFID and fingerprint sensors. Conducted manual hardware and firmware unit testing, supported product launches, and coordinated with hardware, frontend, and backend teams.
Education
Degrees, certifications, and relevant coursework
Fatima Michael College of Engineering and Technology
Bachelor of Engineering, Electronics and Communication Engineering
2016 - 2020
Bachelor of Engineering in Electronics and Communication Engineering at Fatima Michael College of Engineering and Technology (2016–2020).
Tech stack
Software and tools used professionally
Availability
Location
Authorized to work in
Job categories
Skills
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