Thevananthan Thevarasa

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PROGRAMMING LANGUAGES

Python – Expert	Lua – Expert
C Language – Expert	C++ – Intermediate
C # – Intermediate	R – Intermediate
Matlab – Advanced	PLC – Intermediate
JS, HTML, CSS – Expert	Verilog – Advanced

DEVELOPMENT TOOLS EXPERIENCED

GitHub	Docker
Jenkins	VS-Code
Linux-Bash	GNU-Make
Toolchains, Cross-compilers

ML & VISION & NLP FRAMEWORKS HANDS-ON EXPERIENCE

Pytorch	Scikit-learn
XGBoost	OpenCV
Pandas	Numpy
Transformers – Hugging Face	Gymnasium – RL
Open AI GPT Models – using API	OpenAI Chat Assistants
Tensorflow	Keras

ALGORITHMS FAMILIARIZED WITH

Search Algorithms
Informed (Heuristics) :	A-Star, MiniMax, AlphaBeta
Uninformed:	Breadth First (BFS), Depth First (DFS)
	Uniform-Cost Search
	Iterative-Deepening-DFS
Genetic Algorithms
Roulette-wheel Selection	Tournament Selection
Fitness Evaluation Functions	Mutation Methods
Cross-Over Methods
Reinforcement Algorithms
Bandit algorithms	Dynamic programming
Monte-Carlo methods	Q-Learning

EMBEDDED SYSTEMS ENGINEERING

FreeRTOS	Digital Control Systems
TimeSys Linux	Robotics, Kinematics
Digital Filters: FIR, IIR	Comm. Protocols: UART, SPI, I2C
MQTT	RS232, RS484-Modbus

MACHINE LEARNING PROCESS HANDS-ON-EXPERIENCE

Data Preprocessing
Data Cleaning	Normalization
Feature Selection	Dimensionality Reduction
Balance Over/Under Sampling	Data Augmentation
Training, Validation, & Testing
Data Splitting Methods	Cross-Validation Techniques
Regularization Techniques	Hyperparameter Tuning
Optimization Algorithms
Model Evaluation & Performance
Classification Metrics	Regression Metrics
Ranking Metrics	Model Comparisons
Model Optimizations

These Projects are during my past 7 years of journey in Embedded Software, In which 5 yr. 9 Mo. of Tenure with Rinstrum Pty Ltd until 2022 and last 1 Yr. 6 Mo. Tenure with Southern IL Scales Inc. until Now. During This professional Exposure, I have gained so much experience in designing algorithms, building peripheral Intefacings, Signal Filtering, Communication Protocols, Optimizing performance, and Industrial standards while developing the Firmware for smart industrial controllers.

Some of the significant successful Projects I have developed are listed below:

Rail Weigh-In-Motion [WIM] System –NTEP Approved – SISC

Initially, I developed the Embedded-Software for the Automated Smart In-motion rail weighing system while Being with Rinstrum Pty which will weigh the Rail Cars while they are in-motion.

This is a challenging Engineering task due to the Extremely noisy, harsh, Hazardous deployment sites. The System’s performance should be most effective and 100% Reliable for the Trade approval and continued business operations of Huge Industries heavily Rely on the inbound and outbound Materials of Trade.

This Turned out to be a Successful Project for Rinstrum, Southern-IL Scales and Fairbanks Inc. Which attracted several Customers of Fairbanks Inc. who were using their Static Rail Weighing System. Therefore Southern-IL scales in Collaboration with Fairbanks continued to provide the Solution across the USA for Several Industries across fields of Logistics, Oil, Steel, Agro etc.

Continued development of this Rail WIM System and special demands from various clients, together with my relocation to Canada in 2022 for Graduate Studies, influenced my current remote job as an Embedded Software Engineer for Southern-IL Scales Inc.

ITC Terminals	Site 1: Deer Park, TX, USA 77571
	Site 2: Pasadena, TX, USA 77503
Total Grain Marketing	Casey, Illinois, USA 62420
WATCO Companies	Memphis, TN, USA 31806
Nutrien Ag Solutions	Jefferson, NC, USA 28640
Broco Energy	Haverhill, MA, USA 01830
Washington Penn	Wapakoneta, OH, USA 45895
Gerdau Ameristeel	Arlington, TN, USA 38002
Viterra USA Grain, LLC	Catoosa, OK, USA 74015

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T720 Multi-Channel Digital Weight Transmitter Development for High speed berries packing

Firmware(Embedded Software) Developer(One of two developers) of Rinstrum T720 (Digital weight processing and Transmission unit) for High speed berries packing Company A&B Packing Equipment Inc, Michigan USA.

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C530 Rinstrum Device Embedded Web-Interface based app for Baskin Robbins

I developed C530 Rinstrum Controller embedded Web-Interface based Multi-Scale smart POS application for Baskin Robbins(Brisbane, AU). C530 units connected via LAN in master and slave architecture. Entirely web-interface based operations, No interaction with C530s. Non-FSM Lua program architecture – Events are from web and output also on Web.

Roles of Lua program :

• Providing API for Web-Interface
• Communication between master and slaves – Custom TCP Socket Protocol (Commands, Data, Acknowledgements)
• Integrate hw events into application – tags, weights and status

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Batching application for SG Systems V5 Terminal

I have developed this batching application where Rinstrum R423 controller receives batching order from a 3rd Party System and Execute the batching and reports back.

• This application works with SG Systems V5 Formulations System.
• 3 – Scales used for batching Resins, 3 – R423s Drives each of them.
• V5 Terminal Runs the Control center & Data base, Three Touch screen HMI system used for operator interface.
• The Batching Order from V5 Terminal  sent to R423, task Executed, Report sent back
• TCP Sockets are used for Communication, Formatted as XML.

Scrap metal bin Smart Monitoring, email Notifier for JP Bowlin

• I have developed this application for JP Bowlin, which weighs scrap metal bins, Monitor them, log them, and Notify user once accumulated total reaches target.
• Once the Target reached, Ready to collection Notification is sent to user through Email. The Target for collection is configurable, Tare value can be Set.
• msmtp is used as the SMTP client.

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Synchronized axleWEIGHr to Effectively Manage Multiple Sites.

I have developed a Custom Rinstrum axleWEIGHr application for Yura SA, Peru; which Build, produce and market cement, and construction materials.

This axleWEIGHr app Communicates with Web-Service of ERP server to Synchronize each Weighing Transactions and Truck Management, through Internet (WAN) using HTTP POSTS.

Installed on Multiple Weighing Sites of the organization. New Trucks, Key binds are Synchronized across all Sites using this application.

Don’t hesitate to reach out me with the contact information below, or send a message using the form.