ZaymanTechAI
Available for Freelance Projects

Dharan Tej Pusthakala

Software Engineer & GenAI Architect specializing in building RAG workflows, Spark pipelines, and high-performance production web applications.

Profile Summary

Software Engineer with 1 year and 7 months of experience architecting AI-driven RAG pipelines using LangGraph to orchestrate generative AI workflows with Azure Cognitive Search and OpenAI. Adept at metadata enrichment and real-time SEO anomaly detection using PySpark, BigQuery, and GenAI.

Hire Me for Freelance Work

I am an active freelancer, building production-based, robust web applications and custom system integrations customized directly to your business requirements. Have a specific design, feature layout, or custom workflow in mind? Let's discuss your project.

Professional Experience

Software Engineer

Dec 2023 – June 2025
TEKsystems Global ServicesHyderabad, IndiaFull-Time
  • Architected and deployed a Retrieval-Augmented Generation (RAG) solution on the Azure ecosystem, leveraging Azure Cognitive Search and Azure OpenAI for document ingestion and semantic retrieval.
  • Implemented Python pipelines for enterprise-grade PII anonymization and metadata enrichment using SpaCy NER and Faker.
  • Developed and maintained Azure Functions and Cognitive Search indexes to automate JSON processing and enable semantic search.
  • Built a real-time SEO anomaly detection framework with PySpark, BigQuery, and generative AI, slashing recovery time from one week to three hours (a ~90% reduction) and boosting organic conversion rates.

Software Engineer Intern

May 2023 – Dec 2023
Research Centre Imarat (RCI), DRDOHyderabad, IndiaInternship
  • Automated and enhanced Avionics Test-bed precision using Python, optimized projectile testing, and developed embedded applications on ZynqSoC.
  • Worked on Model-Based Software Development with Altair Embed and performed static/dynamic analysis of legacy code for MISRA standards using LDRA Tool.
  • Implemented and tested MIL-STD 1553 communication protocol with hands-on experience on ARM-I.MX8, Zynq Ultra-Scale, and MIL-STD 1553 interface boards.

Selected Projects

DRDO / Aerospace Innovation

OBC In-Loop Test-bed Automation (OLTA)

Led On-Board Computer (OBC) loop Test-bed automation, designing and implementing advanced test automation systems using Python. Oversaw testing protocols, ensuring optimal performance and reliability in simulated operational environments.

PythonTest AutomationZynqSoCEmbedded Systems
Computer Vision Project

Low Light Image Enhancement

Developed a Convolutional Neural Network (CNN) system for enhancing low-light images. Significantly improved object detection and scene understanding accuracy while strictly preserving the original image's semantic content.

PythonCNNTensorFlowComputer Vision

Technical Skills

Languages

PythonSQLHTML5CSS3JavaScriptTypeScript

Tools & Frameworks

ReactNext.jsLangGraphPySparkNumPyPandasTailwind CSS

Cloud & Databases

GCPBigQueryAzure OpenAIAzure Cognitive SearchAzure FunctionsGitHubLinux

Core Concepts

Data StructuresAlgorithmsMachine LearningGenerative AIRAG PipelinesSEO Anomaly Detection

Certifications

AWS Certified Developer

Associate (DVA-C02)

Databricks Certified

Data Engineer Associate

Education

B.Tech in CSE (2019-2023)

Keshav Memorial Institute of Technology

JNTUH, Hyderabad

GPA:8.0 / 10