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Python instructor · AI & ML engineer · Houston, TX

Vinay Kumar Posina

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Vinay Kumar PosinaGraduate Teaching Assistant — Python & Data Science

Python instructor · AI & ML engineer · Houston, TX

I teach and mentor 130+ graduate students in Python programming while building data systems, AI models, and full-stack applications. Deep expertise in machine learning, deep learning, and cloud-native architectures across Python, Java, and modern web frameworks.

About

I bridge the gap between machine learning research and production systems. At UHCL, I mentor students in Python and data science while working on AI-powered applications and scalable backend systems.

With 6+ years of professional experience spanning EY, Mantra Technologies, and the academic space, I've built everything from enterprise-grade Spring Boot APIs to low-code platforms and ML-powered tools.

I focus on building simple, fast, and maintainable systems — designed for actual usage, not just clean implementations.

Based in Houston, TX.

Experience

Graduate Teaching Assistant — PythonUniversity of Houston – Clear Lake

Aug 2023 — Present · Houston, TX

Mentoring and supporting 130+ graduate students in Python programming concepts, data science workflows, and AI fundamentals.

  • Led weekly lab sessions providing hands-on instruction and troubleshooting code for individual students and collaborative group projects
  • Mentored 130+ graduate students, helping them understand Python programming concepts, data structures, and algorithmic thinking
  • Designed and delivered practical exercises covering Python fundamentals, data manipulation with Pandas, NumPy, and visualization
  • Supported students in building ML pipelines from scratch using Scikit-learn, TensorFlow, and PyTorch
  • Fostered a productive learning environment through live coding, code reviews, and pair programming sessions

Technology ConsultantErnst & Young LLP

Jan 2022 — Dec 2022 · Hyderabad, India

Enhanced the Secure Connect Gateway application for Dell Technologies by developing and integrating new APIs using Java, Spring Boot, MySQL, and Docker.

  • Developed and integrated new APIs for the Secure Connect Gateway (Remote Assist) for Dell Technologies — improving remote support service functionality
  • Designed and implemented alarm service APIs for notification, wake-up, and service restart on downtime — enhancing system resilience and reliability
  • Integrated Dell PowerEdge servers into the Secure Connect Gateway platform, expanding supported device range
  • Built Docker containers for application deployment and MySQL database integration

Software EngineerMantra Technologies Private Limited

May 2018 — Jan 2022 · Hyderabad, India

Developed the 500apps application suite using Python, Flask, Celery, MySQL, Docker, and AWS services. Built the low-code platform Appup and led web scraping initiatives.

  • Developed the 500apps all-in-one suite using Python, Flask, Celery, MySQL, Docker, and AWS — enabling comprehensive business solutions
  • Built the Appup low-code platform allowing drag-and-drop web app creation, reducing development time by 50%
  • Designed key CRM features including bulk operations, automations, and workflows — significantly improving user productivity
  • Created an Electron.js desktop application to deploy Docker locally for Appup, streamlining testing and reducing cloud dependency
  • Led web scraping initiatives using Puppeteer and Beautiful Soup for large-scale data extraction and analysis
  • Deployed and managed AWS infrastructure including S3, EC2, Lambda, SNS, SQS, RDS, and SageMaker

Projects

Big Data Analysis of GeoTemporal Climate

Dec 2023 · Big Data · MapReduceAnalyzing 1M+ rows of climate data with MapReduce

Applied advanced data processing techniques using MapReduce to analyze over one million rows of historical climate data, identifying patterns, trends, and anomalies in global temperature records across temporal and geographic dimensions.

Built with: MapReduce, Hadoop, HDFS, Spark, Python.

Enhancing Pneumonia Diagnosis via Deep Learning

Dec 2023 · Deep Learning · CNNCNN and transfer learning for pediatric chest X-ray analysis

Implementation and evaluation of Convolutional Neural Networks for accurate pneumonia detection in pediatric chest X-rays, leveraging techniques ranging from custom model architectures to advanced transfer learning and fine-tuning with ImageNet-pretrained models.

Built with: Python, TensorFlow, CNN, Transfer Learning, Medical Imaging.

Speech to American Sign Language Generation

Apr 2024 · Deep Learning · AIConverting speech to ASL using Whisper AI and Stable Diffusion

Developed a Python-based application using Whisper AI for speech recognition and Stable Diffusion for sign language image generation, converting spoken language into American Sign Language visual representations using speech recognition and computer vision techniques.

Built with: Python, Whisper AI, Stable Diffusion, Computer Vision, NLP.

Secure Connect Gateway for Dell

2022 · Spring Boot · Java · DockerEnterprise remote support platform at EY

Enhanced the Secure Connect Gateway application for Dell Technologies at EY — developed and integrated new APIs using Java, Spring Boot, MySQL, and Docker. Built alarm service APIs for notification, wake-up, and service restart on downtime.

Built with: Java, Spring Boot, MySQL, Docker, REST APIs.

500apps — All-in-One Business Suite

2018–2022 · Python · Flask · AWSFull-stack business application suite on AWS

Developed the 500apps all-in-one application suite using Python, Flask, Celery, MySQL, Docker, and AWS services — enabling comprehensive business solutions for users including CRM, automations, and workflows.

Built with: Python, Flask, Celery, AWS, Docker, MySQL.

Appup — Low-Code Platform

2018–2022 · Python · Flask · ElectronDrag-and-drop web app builder cutting dev time by 50%

Built the Appup low-code platform allowing users to create and deploy web applications through a drag-and-drop interface, reducing development time by 50%. Also created an Electron.js desktop app for local Docker deployment to streamline testing.

Built with: Python, Flask, Electron.js, Docker, MySQL.

Skills

Education & Credentials

Contact

Email: vinayk.posina@gmail.com

Location: Houston, TX