Dyan Raj Chandrasekaran
Design and Development Engineer
Salem
Summary
I am a Design and Development Engineer in the medical device industry with over 2 years of hands-on experience. My work is driven by a passion for creating user-centered, clinically relevant solutions that improve patient care. I specialize in electronic circuit design, 3D modeling, embedded firmware development, and prototyping, with a strong understanding of regulatory compliance and safety standards. From concept to clinical validation, I enjoy bringing innovative medical technologies to life and aspire to make a lasting impact on global healthcare through safe, effective, and accessible devices.
PROFESSIONAL SUMMARY
Design and Development Engineer for medical device in Kozhnosys Pvt Ltd. Post Graduate Trainee in Department of Bioengineering. Developed medical devices like Breath Analyzer, Neuro Monitor, ECG Simulator, Body Temperature Measurement. Experienced in analog circuits and PCB design. Experienced in firmware development using Arduino platform. Designed python-based GUI for software integration. Knowledge in analog and digital signal processing. Experienced in CAD designing, GD&T and 3D printing. Extensive Knowledge in medical instrumentation. Neuro-monitoring assistance in thyroidectomy surgeries (Clinical Trials). Calibration of various medical devices in hospitals.
Overview
4
4
years of professional experience
11
11
Certifications
Work History
Design and Development Engineer
Kozhnosys Pvt Ltd
Pune
10.2023 - 06.2025
- Company Overview: Kozhnosys Pvt Ltd focuses on developing a breath analyzer for disease prediction.
- Leading full-cycle hardware development of a breath analyzer, integrating embedded systems, sensors, and power management units.
- Engineered analog and digital circuit schematics; selected and validated microcontrollers and sensor interfaces.
- Designed detailed 3D CAD assemblies using SolidWorks; ensured DFM/DFA compliance.
- Fabricated and tested prototypes; performed system-level reliability assessments.
- Developed hardware validation protocols and supported regulatory submissions (CDSCO, ISO 13485) with technical documentation.
- Provided technical mentorship and coordinated with clinical, firmware, and mechanical teams for integrated system design.
- Kozhnosys Pvt Ltd focuses on developing a breath analyzer for disease prediction.
Post Graduate Trainee
Department of Bioengineering, Christian Medical College
Vellore
10.2021 - 10.2023
- Developed an Intra Operative Neuro Monitoring Device, to locate and monitor the functional integrity of the Recurrent Laryngeal Nerve, during Thyroidectomy surgeries.
- The amplitude and the latency of the CMAP from point of stimulation was studied.
- Designed and developed a stimulator which can stimulate the nerve of interest and a EMG recording circuit to record the CMAP response from the muscle innervated to the respective nerve.
- Stimulation is given with a bipolar electrode and the corresponding EMG from the muscle is recorded using needle electrodes.
- The recorded signals were amplified and filtered with analog circuit and digitized with teensy microcontroller.
- The CMAP was plotted and displayed on a GUI, which I developed using python.
- The hardware used for operation of GUI is a raspberry pi 4 and 5-inch touch screen display.
- Clinical trials were performed using this device.
Research Intern and Calibration Engineer
Helix Pvt Ltd
Bangalore
01.2021 - 02.2021
- Developed an ECG simulator, which was used to calibrate ECG machines with various kinds of arrhythmia waveforms in hospitals.
- Calibrated and performed electrical safety tests for various medical instruments like patient monitors, syringe pumps, infusion pumps, sphygmomanometers, doppler ultrasound, ECG machines.
Education
Master of Science - Bioengineering
Christian Medical College
Vellore, Tamil Nadu 08.2021 - 10/2023
Bachelor of Technology - Biomedical Engineering
Karunya Institute of Technology and Sciences
Coimbatore, Tamil Nadu 06.2017 - 04/2021
Skills
PCB Designing - Eagle, KiCad
Certification
3D CAD modelling workshop of 3D FusionCraft – SolidWorks workshop
Interests
Medical devices
Biomedical Instrumentation
Diagnostic equipment
Bio signal processing
Languages
English
Advanced
Tamil
Advanced
Hindi
Intermediate
References
References available upon request.
Timeline
Design and Development Engineer
Kozhnosys Pvt Ltd
10.2023 - 06.2025
Post Graduate Trainee
Department of Bioengineering, Christian Medical College
10.2021 - 10.2023
Master of Science - Bioengineering
Christian Medical College
08.2021 - 10/2023
Research Intern and Calibration Engineer
Helix Pvt Ltd
01.2021 - 02.2021
Bachelor of Technology - Biomedical Engineering
Karunya Institute of Technology and Sciences
06.2017 - 04/2021
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