Sathya

Hi i'm Donald

I like Math, science, sports, and putting them all together in code.

Junior Computer Science student @ UMD 🐢

donaldguti9@gmail.com GitHub LinkedIn

Experience

UMD
Jan 2026 - May 2026

TA - MATH140 [Calculus 1]

Department of Mathematics - University of Maryland, College Park

  • Expected to provide academic support to students through office hours, guided practice, and clarification of theoretical and computational material
  • Will assist with leading problem-solving sessions, facilitating student learning, and reinforcing foundational linear algebra concepts
  • Position awarded based on strong mathematics performance, communication ability, and demonstrated mastery of course material
MilliporeSigma
Apr 2024 - Jan 2026

Associate Data Scientist 1

Data & Analytics Department

  • Performed unit and integration testing using automated frameworks to validate algorithmic correctness, improve code coverage, and eliminate logic defects prior to deployment
  • Conducted software quality assurance (QA) analysis, benchmarking script performance under various workloads and resolving system bottlenecks to improve runtime efficiency by reducing unnecessary I/O and redundant computations
  • Performed unit and integration testing using automated frameworks to validate algorithmic correctness, improve code coverage, and eliminate logic defects prior to deployment
MilliporeSigma
Jun 2023 - Apr 2024

Software Engineer Intern

MilliporeSigma

  • Designed and implemented a Python-based ERP automation algorithm to compute reorder points, safety stock, and lot-size parameters reducing manual calculations by 90% and accelerating material ordering processes by 3× across 25 departments and 7,000+ global employees
  • Simplified end-to-end UI automation for laboratory material reordering, reducing manual user input and improving transaction throughput
  • Collaborated in Agile sprints with cross-functional data engineering teams, contributing to a 25% faster release cycle for internal automation tools through streamlined testing and deployment automation.

Projects

FinLife project screenshot

FinLife Financial Simulator

Day-by-day financial game powered by realtime market data where players juggle paychecks, expenses, investments, and life events using interactive charts and built-in money tips.

React Chart.js Yahoo Finance API
GitHub →
ERP calculator project screenshot

ERP Algorithm

Python tool that automated [Retracted Company] Oracle-to-SAP S/4HANA migration metrics by computing reorder points, safety stock, and lot sizes to boost data accuracy and streamline forecasting.

Python SAP S/4HANA ERP
GitHub →
Project screenshot

EZ-Aquarii Triple Star System Simulation

Modeling the three-body orbital mechanics of the EZ-Aquarii stellar system.

C Python Numerical Methods

Skills

Languages

Python

Python

SQL

SQL

C

C

C++

C++

Java

Java

JavaScript

JavaScript

TypeScript

TypeScript

R

R

MATLAB

MATLAB

Rust

Rust

Go

Go

Kotlin

Kotlin

OCaml

OCaml

HTML

HTML/CSS

Frameworks

React

React

Node.js

Node.js

Pandas

Pandas

Pytorch

Pytorch

Tensorflow

Tensorflow

Scikit-learn

Scikit-learn

CUDA

CUDA

OpenAI

OpenAI

🦜🔗

Langchain

Developer Tools

AWS

AWS

Icon-Architecture/64/Arch_AWS-Lambda_64 Created with Sketch.

Lambda

Icon-Architecture/64/Arch_ Amazon-API-Gateway_64

API Gateway

Icon-Architecture/64/Arch_Amazon-DynamoDB_64 Created with Sketch.

DynamoDB

Icon-Architecture/64/Arch_AWS-SageMaker_64 Created with Sketch.

SageMaker

Docker

Docker

Kubernetes

Kubernetes

Redis

Redis

Terraform

Terraform

Git

Git

Kafka

Kafka

Grafana

Grafana