Atlanta MS CS · Georgia State Open to SDE roles

Ranjit Dontineni

Software Engineer

Production systems. Built to last.

Cloud-native, event-driven backends on AWS — from 10M+ daily messages at Aditya Birla Capital to near-real-time streaming on Amazon Connect.

View experience Schedule a call Email

Now GRA at Georgia State · Open to full-time SDE roles

0 messages / day on the AWS comms platform

2.8s → 350ms holdings API after DynamoDB cache

0 daily loan and KYC transactions

99.9% availability after BizTalk → AWS

01 — Experience

Where the work happened.

01 2026

Software Development Engineer Intern

Amazon Web Services · Connect

Seattle · May – Aug 2026

Near-real-time Amazon Connect pipeline — Lambda, SQS, Kinesis, EMR Serverless, Spark, S3, Iceberg. Freshness from a 24-hour batch to minutes for forecasting, ML, and AI-agent workflows.
Spark Structured Streaming every 5 minutes with dedup, watermarks, windowing. Iceberg tables with hourly partitions and 15-minute buckets; CoW vs MoR.
Simplified a multi-stage stream while keeping raw-record traceability. SQS DLQs, retries, CloudWatch, hot-vs-cold validation against historical batch.

Lambda · Kinesis · Spark · Iceberg · EMR Serverless

02 Now

Graduate Research Assistant

Georgia State University · Office of Academic Affairs

Atlanta · Aug 2026 – Present

Working with Dr. Carla Morelon on Student Learning Outcomes, academic assessment, and how programs prove what students actually learn.
Mentored graduate cohorts in Python, Java, and DSA. Built 20+ labs and rubrics — 35% stronger concept mastery, 40% less faculty grading load.

Python · Java · SLOs · Assessment

03 23–25

Software Development Engineer I

Aditya Birla Capital

India · Jun 2023 – Aug 2025

Multi-channel comms on API Gateway + Lambda (Node.js) for WhatsApp, SMS, email. Queues, retries, DLQs, rate limits. 10M+ messages/day, 42% faster delivery.
Replaced Teradata fan-out with a DynamoDB read-through cache and Step Functions refresh. Query latency 2.8s → 350ms.
BizTalk → AWS for 8+ services / 12 Lambdas. 99.9% availability. Submit–poll–webhook APIs for 27M daily loan and KYC transactions.
CodePipeline + CodeBuild + ECR for 50+ Lambdas. 75% fewer failed deploys, 60% faster releases.

Node.js · DynamoDB · Step Functions · CodePipeline

02 — Selected work

Systems, agents, research.

P / 01

BizTalk → AWS

C# · BizTalk · Node.js · API Gateway · MySQL

Reverse-engineered 32 C# BizTalk orchestrations into cloud-native REST on Node.js and API Gateway. Relational model → NoSQL item collections. Availability to 99.9%.

P / 02

Kafka task mesh

Java · Spring Boot · Kafka · Docker · PostgreSQL

Distributed task processor: async parallel workers, fault-tolerant consumers, REST tracking layer and a light UI so you can watch a job from submit to done.

P / 03

Connect stream

Kinesis · Spark · Iceberg · EMR Serverless

Minutes-fresh Connect telemetry for forecasting, ML, and AI agents. 5-minute micro batches, Iceberg partitions, DLQs, and proof against the old 24-hour batch.

P / 04

Open-weight model lab

PyTorch · Hugging Face · LoRA · Python

Trained and adapted open-weight models — loading public checkpoints, running LoRA fine-tunes, watching loss/eval curves — to learn how tokenization, attention, and training loops actually behave, not just how to call an API.

P / 05

DeepSeek Harness agent

DeepSeek Harness · dsh plugins · RAG / KB

Built a personal coding agent on the newly released DeepSeek Harness — plugin runtime, sessions, tools — with my own knowledge base of active projects so the agent can retrieve context and work against real repos, not a blank chat.

P / 06

Challenge-response

MS capstone · Crypto protocol · Python

Master’s final project: a challenge-response authentication system — nonce-based challenges, signed responses, replay protection, and session binding — designed to prove identity without sending a reusable secret over the wire.

03 — Proof