Rishav Kumar — Software Engineer

Experience

Senior Software Engineer

Visa ·Austin, TX ·Sep 2024 – Present Now

Led development of Visa's global on-call alerting and incident resolution platform, serving engineering and SRE teams across a payment network processing 60,000+ TPS and 200M+ daily transactions worldwide.
Architected real-time alert routing and notification system (Angular, Node.js, TypeScript, Python, MySQL, REST APIs) with Microsoft Teams webhook integration, reducing MTTR by 20% across multi-region cloud infrastructure.
Designed multithreaded fleet diagnostics engine (Java, Spring Boot) executing 1,000+ concurrent health checks/sec at sub-60ms P99 latency for automated root cause analysis across distributed datacenter operations.
Building a Site Reliability GenAI Agent using Agentic AI flows with LangGraph, LangChain, and LLMs (GPT, Gemini) — performs automated root cause analysis, predictive change detection, deployment risk scoring, and SOP recommendation, reducing manual investigation time by ~70%.
Implemented multi-step tool calling and observability tracing (Langfuse); optimized prompts through iterative prompt engineering and LLM-as-a-judge evaluation for accuracy and conciseness.
Authored and open-sourced internal libraries for cryptographically secure data transmission using TLS, AES-256 encryption, and certificate pinning — adopted across multiple engineering teams.
Led observability stack migration from Splunk to ClickHouse (Java microservices), processing terabytes of telemetry daily while reducing query latency and infrastructure costs.

AngularNode.jsTypeScriptPythonJavaSpring BootLangGraphLangChainClickHouseMySQL

Software Engineer

Arizona State University ·Tempe, AZ ·Sep 2023 – Aug 2024

Built class search and student registration systems (React, Next.js, TypeScript, Node.js, SQL Server) with WCAG 2.1 accessibility, ARIA landmarks, and CI/CD automation, reducing operational overhead by 25% across platforms serving thousands of students.
Optimized database performance 30% via query refactoring and API redesign; achieved 99.999% uptime through Prometheus/Grafana observability and automated alerting.

ReactNext.jsTypeScriptNode.jsSQL ServerPrometheusGrafana

Software Engineering Intern

Visa ·Austin, TX ·May 2022 – Aug 2023

Built synthetic monitoring for Kafka pipelines (Angular, Node.js, Go, Prometheus, Grafana), improving pipeline reliability 30% via automated regression detection.
Engineered real-time anomaly detection pipeline (Kafka, Druid, Prometheus TSDB) processing terabytes of distributed infrastructure metrics for production observability.
Shipped config management tool (Java, Redis, MongoDB) that cut support requests 50% and accelerated provisioning workflows.

AngularNode.jsGoKafkaApache DruidPrometheusRedisMongoDB

Projects

BookCourt

bookcourt.at · 2026

Solo-built and launched real-time SaaS platform for court management and tournaments. 200+ users across 5 countries, 6,700+ matches tracked, 100+ DAU. Event-driven backend with WebSocket/SSE sync, push notifications, RBAC, live queues, match scoring, auto-generated brackets, and analytics dashboards. Mobile-first PWA with multi-tenant isolation and audit logging.

Node.jsStarletteMySQLRedisWebSocketsPWA

JavaScript 200+ users · 5 countries

Hosting Checker

hostingchecker.net

Suite of DNS and infrastructure analysis tools — hosting lookup, WHOIS, DNS records, domain age, nameserver checker. Custom RDAP pipeline with curated ASN database. 30K+ monthly users. 4 Chrome Extensions published. Product Hunt Product of the Day.

JavaScriptPHPChrome ExtensionsDNS / RDAP

PHP 30K+ monthly users · PH #1

Technical Skills

Languages

JavaC++PythonGoTypeScriptJavaScriptSQLBashC#

Frameworks & Runtime

Spring BootAngularReactNext.jsNode.jsStarletteExpress.jsFlask.NET Core

AI / ML & GenAI

LangChainLangGraphLangfuseAgentic AIPrompt EngineeringTensorFlowPyTorchNLP

Infrastructure & DevOps

AWS (EC2, RDS, S3)AzureDockerKubernetesLinuxCI/CDGitNginx

Data & Real-Time Systems

Apache KafkaClickHouseApache DruidRedisMongoDBMySQLSQL ServerWebSocketsSSE

Observability & SRE

PrometheusGrafanaSplunkDistributed TracingAlerting PipelinesIncident Management

Disciplines

Distributed SystemsLarge-Scale System DesignReal-Time ArchitectureMicroservicesFault ToleranceDSA

Education

MS, Computer Science

Arizona State University

Dean's List Scholar

BS, Computer Science

Arizona State University

New American University Scholar

About

Hey! I'm Rishav Kumar — a software engineer based in Austin, TX. I grew up in India and moved to the United States at 18 to pursue my Bachelor's in Computer Science at Arizona State University. Moving countries alone to chase something you're passionate about is equal parts terrifying and exciting — I wouldn't trade it for anything.

During my undergrad I interned at Visa twice, building synthetic monitoring systems and real-time data pipelines with Kafka and Druid. I stayed at ASU for my Master's (Dean's List), then joined Visa full-time. I'm now a Senior Software Engineer working on AI-driven observability platforms — building real-time alert resolution and notification systems for on-call teams and AI agents that run health checks on servers to automatically detect problems before anyone notices.

Outside of work, I play guitar and sing — mostly when nobody's listening, sometimes when they are. I also love cooking, which I picked up seriously after moving to the US. What started as survival cooking has turned into something I genuinely look forward to.

Graduation @ ASU 🎓

Guitar nights 🎸