Preethi S

Experience

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  Hindustan Aeronautics Limited

  Nov 2014 - Nov 2015

  SQL Developer

  I manage SQL Server instances, handling tasks like installation, backups, restores, and recovery. I design efficient database models using tools like Erwin and ER Studio, optimizing performance by identifying and resolving bottlenecks and deadlocks. I oversee database security, permissions, and storage planning, and work closely with developers to design schemas, optimize SQL queries, and improve stored procedures. I also monitor database performance using SQL Server Management Studio (SSMS) and third-party tools. Show less

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  Omics Informatics LLC

  Feb 2016 - Jan 2019

  Python Developer

  I have experience across the full Software Development Lifecycle (SDLC) in agile environments, including sprint planning and using Git, JIRA, and Confluence for project management. I’ve developed RESTful services with Django, implemented TDD using PyTest, and created proof of concepts for data extraction accuracy. My work includes building full-stack applications with Python and Django, handling backend data processing with PostgreSQL, and integrating APIs using Django REST framework. I’ve also worked with object-oriented programming and documented APIs with Swagger for both internal and third-party use. Show less

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  Arcane Technologies

  Feb 2019 - Jan 2020

  Python Developer

  I specialize in designing and developing applications through all phases of the SDLC in agile environments. With expertise in Python, Django, and Flask, I’ve built full-stack web applications, implemented RESTful APIs, and processed backend data with PostgreSQL. Skilled in Test-Driven Development using PyTest, I create reliable solutions while optimizing performance. I’ve developed ETL transformations, documented APIs with Swagger, and collaborated closely with frontend developers to ensure seamless integration between backend logic and user-facing interfaces. Show less

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  Nakshatra Techno Hub

  Feb 2020 - Jul 2022

  Python Developer

  I have extensive experience in designing efficient systems, automating workflows with Python, PySpark, Shell scripting, and XML. Skilled in optimizing Spark applications and integrating Python with Bash for improved automation and system administration. I’ve developed machine learning models using Python and Spark MLlib within Databricks and automated infrastructure deployment with Terraform and GitLab CI. Additionally, I manage Azure Storage for secure data handling and have built intuitive Android applications to enhance user experiences. Show less

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  Spark Building Energy Solutions LLC

  Jul 2024 - now

  Software Engineer

  I have extensive experience in designing software solutions, automating tasks with Python and PySpark, and optimizing Spark applications. I've built tools for energy projects, integrated machine learning models for data analysis, and automated infrastructure deployment with Terraform and GitLab CI. I’ve developed APIs with Flask and Django, collaborated using Databricks, and built user-friendly web apps with React.js and Angular. My focus is on creating reliable, maintainable solutions while ensuring high-quality software development. Show less