SA
Sagar Chand Agarwal
About

I'm a backend and platform engineering leader who has spent the last decade building systems that process money, inform financial decisions, and run at scale. My work spans everything from scrappy MVPs to compliance-certified multi-cloud platforms used by enterprises.

At BeyondIRR I grew the engineering team from 2 to 15, architected a multi-tenant portfolio management platform (10K+ clients, 9+ enterprise deployments on isolated AWS/Azure/Kubernetes stacks), and shipped a multi-agent AI system for financial insights using Pydantic AI, FastAPI, and PostgreSQL — connected over a reliable AGUI protocol. I also led ISO 27001 and DPDP compliance end-to-end.

My engineering instinct: systems should be simple at the boundaries and powerful at the core. I believe the best teams are built on clear ownership, honest code review, and the discipline to ship and observe rather than over-design upfront.

Outside work I run portfolio.ltd ↗ — a small design studio shipping privacy-first, offline-capable apps. I've been a 3× Google Summer of Code contributor and mentor for KDE, and I've spoken at FossAsia 2016 and QtCon 2016.

Python FastAPI Django Flask Celery LangChain Pydantic AI PostgreSQL Redis Clickhouse PgVector Kubernetes Docker AWS CircleCI Grafana Go Next.js ISO 27001 Elasticsearch
Recognition
3× Google Summer of Code Contributor & Mentor — KDE open source project
Speaker at FossAsia 2016, Singapore & QtCon 2016, Berlin
Mozilla & KDE Contributor · Conducted KDE India 2016, OWASP 2016, WikiToLearn 2017
Open Source Design Studio — portfolio.ltd ↗