Vajira Rupasinghe Email & Phone Number

Colombo, Western Province, Sri Lanka

ETL | Python

Padukka, Sri Lanka

◦ Designed and built a custom food dehydrator that reduced the cost by 80% in comparison with readilyavailable dehydrators on the market with the same specifications.◦ Designed the logo and packaging for the products.◦ Sourced the spices from multiple households and vendors.◦ Set Up an online store with Wordpress, Woocommerce on GCP.

Colombo, Sri Lanka

◦ X Generation Network Service Monitor (Developed for Vodafone)○ Designed and fabricated multiple components (PCBs, supporting mounts, cables, etc) in-house whichreduced the cost of production by over 50%.○ Managed supplier relationships to source components (enclosures, 4G modules, electronics, etc) in time,adding more time for testing the product before shipping.○ Developed and tested the firmware, enabling functionalities such as voice and data over protocols suchas… Show more ◦ X Generation Network Service Monitor (Developed for Vodafone)○ Designed and fabricated multiple components (PCBs, supporting mounts, cables, etc) in-house whichreduced the cost of production by over 50%.○ Managed supplier relationships to source components (enclosures, 4G modules, electronics, etc) in time,adding more time for testing the product before shipping.○ Developed and tested the firmware, enabling functionalities such as voice and data over protocols suchas MQTT, LwM2M, UDP. (Modems - Quectel EC25, Simcom SIM7600)○ Contributed to expanding the IoT team which later shipped as many as 40 devices.○ Performed R&D on NB-IoT, 3G, 4G, 5G modems to add new functionalities to the device.◦ Smartbin Solution (Developed for Abans in collaboration with Mobitel)○ Designed and built a smart bin sensor with multiple locally sourced components enabling costreductions over 50% at the testing phase.○ Contributed in installing the sensors and monitoring through the web console.○ Enhanced the firmware by making adjustments to reduce the power consumption which increased thebattery life up to 300%.◦ Packet Forwarding Gateway○ Developed a Port Address Translation gateway in python on Raspberry Pi as a platform, to capture andforward sensor data to a designated server. This enables integrating multi-vendor sensors into oneplatform which dramatically reduces the cost by eliminating the need of separate servers.◦ Smart Parking Platform○ Successfully recreated the sensor protocol on the server side to accommodate and acknowledge theincoming telemetry data, saving the cost for a separate server managed by the sensor vendor.◦ NB-IoT Modem (Developed for Mobitel Sri Lanka)○ Sourced components (Enclosures, electronics) and designed product labels.○ Soldered test PCBs (all SMT components) and troubleshooted. (Modem - Quectel BC68)○ Assembled and delivered 100 modems in time to be tested by multiple stakeholders. Show less

Colombo, Sri Lanka

◦ Tested the web portal of a Cambodian mobile operator and logged bugs on Jira.

Colombo, Sri Lanka

◦ Remote Alert System for a Generator○ Built a system to send alerts from a generator to a remote monitoring display over the NRF24L01wireless module that works on Arduino Nano.◦ Wireless Level Indicator for construction equipment○ Built a battery powered IMU with a gyroscope sensor (MPU6050) that can transmit the orientation of arotating construction equipment head at any given angle. (Wireless module - NRF24L01)○ Developed a remote viewing computer program with… Show more ◦ Remote Alert System for a Generator○ Built a system to send alerts from a generator to a remote monitoring display over the NRF24L01wireless module that works on Arduino Nano.◦ Wireless Level Indicator for construction equipment○ Built a battery powered IMU with a gyroscope sensor (MPU6050) that can transmit the orientation of arotating construction equipment head at any given angle. (Wireless module - NRF24L01)○ Developed a remote viewing computer program with Java.◦ Cybersecurity Project based on Video Games○ Built a remote trigger that is activated at the colour change of the crosshairs in an FPS video game.◦ Word Clock○ Built a clock that displays the time in word sentences. Used Aduino Nano along with an RTC andindividually addressable LEDs(WS2812) Show less

Colombo, Sri Lanka

◦ Successfully performed a backup on Zimbra mail server at Drivegreen Sri Lanka and restored normal business operations by reducing the downtime.◦ Maintained Linux based servers to accommodate systems such as TrendMicro network security tools.

Master Of Business Administration - Mba

Bachelor Of Science (B.Sc.), Computer Systems And Networking

Activities and Societies: Robotics Association, Badminton Club

Education record

Activities and Societies: Artificial Intelligence and Robotics Association Archaeological Society Swimming Club Badminton Club