SUNDEEP_DAYALAN :: TERMINAL v4.2.1

SIGNAL ACTIVE

ID: SD-2024 STATUS: ACTIVE CLEARANCE: ████

SENIOR SOFTWARE ENGINEER Y 04-DEC.97

Hi, I'm Sundeep Dayalan

Architecting high-throughput distributed systems, agentic AI infrastructure, and real-time fintech & Healthcare platforms at scale.

Columbus, Ohio LinkedIn GitHub MS Computer Science

[ INITIALIZE CONTACT ] sundeep.dayalan@gmail.com

5+ YRS EXP

5M+ USERS SERVED

99.99% UPTIME

7+ PROJECTS

Senior software engineer architecting 5M+ user distributed systems across fintech, healthcare tech, and agentic AI. A published Springer researcher and pending patent holder , I bridge high-throughput engineering with production-grade LLM infrastructure, delivering 99.99% uptime and sub-200ms latency. From mentoring squads to authoring ADRs, I build the scalable systems and high-ownership cultures that drive modern engineering.

PERSONNEL FILE

About Me

> cat about.txt READING...

Senior software engineer with 5+ years architecting fault-tolerant, high-throughput distributed systems across Fintech, Healthcare Tech, and Agentic AI.

Expert in Python, Java, and React/TypeScript, delivering production-grade LLM infrastructure and Kafka streaming pipelines serving 5M+ users at sub-200ms p99 latency. Engineered RAG-powered analytics and RBAC-enforced financial APIs maintaining 99.99% uptime.

Published Springer researcher and pending patent holder in smart traffic systems. Proven force multiplier: mentors engineering squads, authors Architectural Decision Records (ADRs), and drives high-ownership cultures.

> cat hobbies.txt READING...

Besides my professional pursuits, I love to travel all around the globe. Meeting new people and communities, exploring new cultures, and tasting diverse foods are my hobbies.

While I have traveled extensively, I am always looking forward to new adventures and would love for you to join me on my next trip.

TECH STACK MATRIX

Technical Skills

01 ⚡

Backend

Python, Django, DRF, Java, Spring Boot, Node.js, C++, FastAPI, GraphQL, REST APIs, gRPC

PythonDjangoJavaSpring BootFastAPIgRPC

02 🖥️

Frontend

React, TypeScript, JavaScript, MUI, Component Libraries, Dynamic Data Visualizations, Responsive UI

ReactTypeScriptMUIJavaScript

03 🔄

Data Engineering

PySpark, Databricks, Delta Lake, Apache Kafka, Spark, Airflow, GCP Dataflow, ETL/ELT, 1B+ event pipelines

KafkaPySparkDatabricksAirflow

04 🧠

AI/ML & LLM

LLM Orchestration, LangChain, LangGraph, Multi-Agent Systems, RAG, Agentic Workflows, Vector Search, TensorFlow

LangChainRAGLangGraphTensorFlow

05 ☁️

Cloud & Infra

AWS (CDK, S3, Lambda), GCP (BigQuery, Dataflow), Azure, Terraform, Kubernetes, Docker, Jenkins, CI/CD, GitOps

AWSGCPAzureTerraformK8s

06 🗄️

Databases

PostgreSQL, BigQuery, T-SQL, Redis (sharding, replication), Azure Cosmos DB, SQL Query Optimization

PostgreSQLRedisBigQueryCosmos DB

07 📊

Observability & SRE

OpenTelemetry, Distributed Tracing, Prometheus, Grafana, SLO/SLA Design, Dynatrace, Splunk, p99 Tuning

OpenTelemetryPrometheusGrafanaSplunk

08 🔒

Security & Compliance

RBAC, PII Handling, Zero-Trust, SOC2/GDPR, Azure AD, OAuth 2.0, JWT, ACH/NACHA, WCAG 2.1 Accessibility

RBACOAuth 2.0Zero-TrustWCAG

MISSION LOG

Work Experience

Senior Full Stack Engineer

Radiantze Inc

May 2025 — Present Columbus, OH

▸ Architected a production-grade banking platform from the ground up — owning full delivery lifecycle across 4 squads and 20+ engineers, spanning Python/Java/Spring Boot APIs and React/TypeScript frontend.
▸ Engineered multi-format financial reporting backend processing Balances, Transactions, ACH, and Check Inquiry data across CSV, Excel, BAI2, and NACHA formats.
▸ Designed fine-grained RBAC entitlements with Azure AD & Ping Identity, reducing authorization latency by 35% and achieving zero-trust compliance.
▸ Pioneered ADRs org-wide across 4 squads, reducing tech debt and cutting onboarding time by 40%.
▸ Contributed shared React MUI components adopted across 15 teams, cutting frontend dev time by 25%; mentored 4 junior engineers on full-stack best practices.

Full Stack Software Engineer

Radiantze Inc

May 2024 — Apr 2025 California, USA

▸ Engineered Apache Kafka streaming pipeline serving 5M+ users — auto-scaling processors boosted throughput 40% at sub-200ms p99 latency.
▸ Architected sharded Redis clusters with cache warming, achieving 99.99% uptime and reducing p99 API latency by 30%.
▸ Co-led design of a no-code rules engine for Kafka events, compressing config deployment from weeks to under one day.
▸ Implemented OpenTelemetry distributed tracing across 15+ microservices, reducing incident resolution time by 50%.
▸ Automated infrastructure for 25+ microservices using Terraform + Jenkins GitOps, cutting deployment cycle time by 60%.
▸ Standardized gRPC contracts across 3 teams, reducing cross-service integration errors by 40%.

Software Engineer

Accenture

Jun 2019 — Aug 2022 Chennai, India

▸ Redesigned high-volume backend using Python & BigQuery optimization — 45% reduction in processing time for large-scale workloads.
▸ Designed fault-tolerant REST & GraphQL APIs sustaining 5M+ TPS with sub-100ms SLAs for a real-time analytics platform.
▸ Built PySpark ETL/ELT pipelines on Databricks with Delta Lake for large-scale data transformation with ACID guarantees.
▸ Developed a Python CLI tool for data discrepancy detection — adopted org-wide, cutting diagnostic time by 30%.
▸ Mentored 2 junior engineers through production deployments and SRE principles.

OPERATIONS ARCHIVE

Key Projects

Multi-Agent Agentic AI Financial Platform

Sep 2025 — Present

Python, Plaid API, LangChain, LangGraph, LLMs, RAG

▸ Engineered multi-agent agentic AI with LangChain/LangGraph — automating transaction enrichment, spend categorization, and investment recommendations.
▸ Built RAG pipeline with Azure Vector Search & Cosmos DB — 93% retrieval accuracy, sub-100ms response times with hallucination guardrails.
▸ Integrated Plaid API + Alpaca for automated trade execution delivering 2.5% monthly ROI with 99.9% reliability.

SkyBMS AI — Battery Management System

Jan 2024 — May 2024

Python, Machine Learning, Cloud Computing, IoT, REST APIs

▸ AI-powered BMS with real-time cloud analytics, dynamic dashboards, and chatbot integration for lithium-ion battery safety and lifespan optimization.

VIEW DETAILS →

WEB HUNTER — Web Reconnaissance

Mar 2023 — May 2023

Python, Tkinter, DNS, SSL, Networking, Figma

▸ Python-based web recon tool with GUI for DNS enumeration and SSL certificate analysis — streamlined security assessment in a standalone executable.

VIEW DETAILS →

Study Table Organizing Robotic Arm

Aug 2023 — Dec 2023

Python, TensorFlow, Computer Vision, Robotics, Servo Motors

▸ Computer vision-powered robotic arm that autonomously detects, picks up, and organizes pens and pencils using TensorFlow object detection and precision servo control.

VIEW DETAILS →

Toolkit for WhatsApp

Apr 2020 — Jan 2021

Android, Java, Firebase, Media APIs

▸ All-in-one WhatsApp toolkit with 7+ powerful modules — Broadcaster, Sticker Maker, Photo Editor, Video Trimmer, Insta Downloader, DP Editor, and Memory Manager.

VIEW DETAILS →

ML-Based Smart Traffic Management System

Jan 2019 — Mar 2019

C++, Node.js, TensorFlow, Computer Vision

▸ Engineered city-scale computer vision platform across 50+ intersections — sub-second latency; co-authored Springer publication and filed patent.

VIEW DETAILS →

Smart Home — IoT Automation

Jan 2018 — Mar 2018

Arduino, IoT, Android, Firebase, Voice Recognition, MQTT

▸ Affordable IoT home automation with energy monitoring, voice control, multi-utility controllers, and Android companion app for real-time energy analytics and bill prediction.

VIEW DETAILS →

TRAINING RECORDS