Headline

SDE-1 @HashedIn by Deloitte • Data & AI Engineer • Spring Boot • PySpark • AWS • FastAPI • Java • Langchain • MongoDB • SQL • GenAI • Leetcode Knight (1900+) • DSA Expert

About

Software Engineer (SDE-1) at HashedIn by Deloitte, building high-scale backend and data platforms with a strong focus on performance, reliability, and clean system design. I have hands-on experience designing and owning production-grade data pipelines and backend services using Python, Java, and SQL, working extensively with PySpark and AWS. My work includes building fault-tolerant ETL/ELT systems, optimizing large-scale Spark jobs (reducing runtimes from hours to minutes), and delivering low-latency, reliable data platforms for analytics and reporting. I regularly work on: • Distributed data processing with PySpark and AWS Glue • Cloud-native systems on AWS (S3, Redshift, Athena, Lambda, Step Functions, DynamoDB, Aurora, IAM, Kinesis) • Backend APIs using FastAPI and Spring Boot • High-quality SQL (complex joins, aggregations, performance tuning) • Data quality, validation, reconciliation, and monitoring • L3 production support, debugging and resolving live system issues at scale I’ve also built full-stack and backend systems using Node.js, Express.js, React, Redux, and Material UI, with databases including PostgreSQL, MySQL, MongoDB, and Snowflake. I’m comfortable with data modeling, data warehousing, DBT, Apache Kafka, Databricks, and modern engineering tools such as Docker, Git, and Splunk. I’ve worked on GenAI-powered applications using OpenAI APIs and LangChain, and built production features like subscription management with Stripe. I’m a LeetCode Knight (1900+ rating, 1400+ problems solved), consistently ranking in the top 5% of contests, demonstrating strong skills in data structures, algorithms, problem solving, and system design. Core skills: Python, Java(Object Oriented Design), Design Patterns, SQL, Data Structures & Algorithms, System Design, Distributed Systems, PySpark, ETL/ELT, AWS, REST APIs, Backend Engineering, Data Engineering, Cloud-Native Architecture. I’m actively interested in Software Engineer, Backend Engineer, and Data Engineer roles

Location

Bengaluru

AI stack

anthropic apis

claude code

claude

hugging face

langchain

openai

Work experience

Software Engineer - 1 at HashedIn by Deloitte, Dec 2024 - Present · 1 yr 10 mos, Banglore, • Owned end-to-end data engineering modules, designing scalable and fault-tolerant cloud-native data pipelines using Python, PySpark, AWS Glue, S3, Redshift, Athena, Lambda, and Step Functions. • Worked closely with business stakeholders to gather requirements and convert them into technical designs and end-to-end ETL/ELT workflows. • Implemented data validation, reconciliation, data correction jobs, and data-quality checks to ensure accuracy and consistency across reporting datasets. Wrote optimized SQL queries, complex joins, aggregations. • Optimized AWS Glue Spark jobs using Spark UI, reducing execution time from 7+ hours to under 1 hour and resolving out-of-memory (OOM) failures through partitioning, memory tuning, and Spark optimizations, while providing L3 production support by investigating data issues and resolving production incidents. • Designed scalable AWS infrastructure using IAM, Lambda, DynamoDB, and built internal tools for automation and operational efficiency. • Built and maintained reliable REST API–based ingestion pipelines with pagination, rate limiting, retries, incremental loads, freshness and data quality checks, alerting for failures, and schema validation to ensure low-latency delivery of external datasets.

SDE at HashedIn by Deloitte, Oct 2024 - Dec 2024 · 3 mos, Bengaluru, Karnataka, India, 1) Engineered an AI-powered Assist System using Langchain, RAG, FastAPI, PgVector, OpenAI Embeddings, and SerpAPI, enhancing internal learning via dynamic FAQs and bot tracking. 2) Built internal tools like a Secret Management System (Spring Boot), Pet Management System (Angular), and Issue Tracking System (.NET), improving operational efficiency.

Back End Developer Intern at Forescribe, May 2024 - Jun 2024 · 2 mos, Gurugram, Haryana, India, • Integrating project management, and collaboration solutions into our application for monitoring changes and enhancing workflow oversight. • Ensuring seamless functionality of externally integrated tools within app’s ecosystem to streamline project management and collaboration processes.

Software Engineer Intern at JMAN Group, Jan 2024 - Apr 2024 · 4 mos, Chennai, Tamil Nadu, India, • Actively involved in developing a Timesheet and Feedback System, focusing on simplifying employee processes, including timesheet creation, feedback submission, and role-based access control. • Engaged in implementing key features such as automated reminders, role-based access control, and project-specific feedback customization, enhancing the system’s usability and effectiveness in streamlining organizational workflows.

Education

Bachelor of Technology - BTech, Computer Science, sree vidyanikethan engineering college

Bachelor of Technology - BTech, Computer Science, Sree

Public links

github: https://github.com/VenkataSai5120

leetcode: https://leetcode.com/vsai5120