---
title: "Dev Saad - Software Development Engineer II in Greater Bengaluru Area | Tal"
description: "Meet Dev Saad, Senior Backend Engineer (Serving Notice) | Golang, Distributed Systems, Microservices | Low-Latency Trading & Order Management Systems | Kubernetes, AWS, Redis, NATS | SDE II @ CoinSwitch | IIT Jodhpur based in Greater Bengaluru Area. AI stack includes antigravity, claude code, and c..."
image: "https://tal.club/meet/dev-saad/share-image"
---

# Dev Saad on Tal

## Headline

Senior Backend Engineer \(Serving Notice\) \| Golang, Distributed Systems, Microservices \| Low\-Latency Trading & Order Management Systems \| Kubernetes, AWS, Redis, NATS \| SDE II @ CoinSwitch \| IIT Jodhpur

## About

Senior backend engineer \(\~5 years, 4 in Golang\) building low\-latency, high\-throughput distributed systems for trading and fintech at CoinSwitch: an options market\-making quoting engine at \~10K order ops/sec with under 9 ms order\-to\-execution, and the Go microservices behind Lemonn, CoinSwitch's equities broker \(\~250K executed orders/day\)\. What I've built: • Designed and led \(two\-engineer team\) a six\-service Go hedging system for an options market maker\. Event\-driven on NATS JetStream with PostgreSQL as the source of truth, so any service can crash and rebuild its state\. • Designed Lemonn's five\-service Go architecture \(order management system, funds, portfolio, broker abstraction\), replacing legacy Java middleware; led the eight\-engineer broker\-vendor migration from PoC to production\. • Built a Go/CGO broker SDK adapter handling \~400K orders/day at under 5 ms p99\. • Cut user\-facing p99 latency by 87–94% across order, funds and portfolio services by tracing a cluster\-wide Redis bottleneck\. • Config Service: 450K requests/min \(1\.2M peak\) at 1\.7 ms p99\.9\. WebSocket layer on Redis Streams: 60K concurrent connections, 400K events/sec\. • Part of the reliability \(SRE\) programme that cut platform outages \~70%: ECS to EKS migration and 1% canary validation across 30\+ microservices\. I write HLDs and design docs, mentor engineers \(six so far\) through design review and pairing, and am first responder on Sev1 incidents\. Tech: Go \(Golang\), Node\.js, TypeScript, NATS JetStream, Redis, PostgreSQL, Kubernetes \(EKS\), AWS, Docker, gRPC, WebSockets, Prometheus, Grafana, Pyroscope, etcd\. Currently serving notice period and able to join soon\. Open to Senior Software Engineer / SDE\-3 / Senior Backend / Platform Engineer roles in Bengaluru, Hyderabad, Pune, Gurugram or remote \(India\)\. Reach me at saad\.dev07@gmail\.com\.

## Location

Greater Bengaluru Area

## AI stack

antigravity

claude code

claude

codex

cursor

## Work experience

Software Development Engineer II at CoinSwitch, Apr 2024 \- Present · 2 yrs 8 mos, On\-site, • Designed the Go architecture replacing Lemonn’s legacy Java middleware across order management, funds, portfolio, and broker integration\. Built the order\-management service from its first commit\. • Led a broker integration from proof of concept through production, coordinating vendor engineers with internal risk, brokerage, payments, and frontend teams\. Selected a Go/CGO adapter through comparative load testing\. • Led phased NATS adoption between broker integration and order management, implementing durable consumers, graceful draining, and retry handling while preserving backward compatibility\. • Reduced user\-facing API p99 latency by 87–94% across order, funds, and portfolio services by removing blocking validation work from a shared data path\. Reduced WebSocket routing job\-publish latency from 200 ms to 30 ms through Redis pipelining\. • Improved monitoring reliability through Prometheus cardinality and scrape\-interval changes; investigated etcd misconfiguration through upstream source review and soak\-tested corrections\. • Established staged canary rollouts with prepared rollback changes and responded to Sev1 incidents across order, funds, and payment flows, completing root\-cause analyses\. • Mentored six engineers through design review and pairing, including one who progressed to independent ownership of critical systems; guided an intern through a first production deployment\.

Software Engineer at CoinSwitch, Sep 2022 \- Mar 2024 · 1 yr 7 mos, Bengaluru, Karnataka, India, • Built the Config Service, a critical Go microservice sustaining 450,000 requests per minute, separating configuration changes from application deployments\. • Built a WebSocket event\-processing layer using Redis Streams consumer groups and weighted load balancing, supporting 60,000 concurrent connections and 400,000 events per second at p99 latency of 20 ms\. • Used incident analyses to address recurring configuration, deployment, and infrastructure failures; introduced end\-to\-end canary validation on 1% of production traffic across more than 30 microservices\.

Software Engineer at ImageKit\.io, Apr 2022 \- Jun 2022 · 3 mos, Remote, Shipped multi\-workspace support, enabling users to belong to multiple accounts and manage concurrent sessions\.

Software Engineer at Aasthy, Sep 2021 \- Apr 2022 · 8 mos, Bengaluru, Karnataka, India, Aasthy is the public brand of Astute Giraffe\. • Built payment integrations for UPI, net banking, and virtual accounts, with a modular vendor layer that simplified integration of additional gateways\. • Built notification services and internal administration tools for assets, referrals, credits, and offline payment capture\.

## Education

Bachelor of Technology \- BTech, Computer Science and Engineering, Indian Institute of Technology Jodhpur

[View the original profile](https://tal.club/meet/dev-saad)

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