---
title: "Roshan Jha - Co-Founder in India | Tal"
description: "Meet Roshan Jha, Engineering at Slice | IIT BHU based in India. AI stack includes claude code, claude, and gemini."
image: "https://tal.club/meet/roshan-jha-2/share-image"
---

# Roshan Jha on Tal

## Headline

Engineering at Slice \| IIT BHU

## Location

India

## AI stack

claude code

claude

gemini

langchain

langgraph

notion

## Work experience

Co\-Founder at Stealth, Sep 2025 \- Present · 1 yr 1 mo, Bengaluru, · Integrated Razorpay \(Android\) and RevenueCat \(iOS\) with a unified backend entitlement service, abstract\- ing webhooks and receipt validation into a single subscription state source\. · Built real\-time backend pipelines powering three concurrent content feeds \(Home, Pulse, Catalyst\) with shared caching and push\-based state sync\. · Designed a device\-aware API layer with client\-specific payloads/pagination, cutting mobile over\-fetching\. · Built backend services for on\-demand fetching, caching, and streaming of BSE/NSE filings, enabling in\-app document rendering at scale\. · Implemented a distributed job scheduler for recurring background tasks \(data sync, notification dispatch, report generation\), with retry logic and dead\-letter handling for failed jobs\. Languages \- Java, Kotlin, C\+\+, Dart, Javascript Technologies \- Spring Boot, MongoDB, DynamoDB, SQL, Docker, Android Studio, AWS, Jetpack Compose Dagger\-Hilt, Coroutines, Redis, Kafka, PostgreSQL, Kubernetes, ElasticSearch Skills \- Multithreading, Concurrency, System Design, RESTful APIs

Software Developer at slice, Jun 2022 \- Feb 2024 · 1 y 8 mo, Bengaluru, · Optimized service performance with Redis caching, cutting p99 latencies and database load to deliver faster, more reliable user experiences\. · Built UPI Rewards, a post\-transaction gaming feature that drove user acquisition\. · Designed and built the referral incentive system from the ground up, handling concurrency, idempotency, and fraud prevention — driving a 150% increase in user onboarding\. · Set up SLO monitoring on Grafana with breach alerts for latency, downtime, and other key metrics, improving incident response and overall service reliability\. · Built an in\-house experimentation platform with feature flags, staggered rollouts, and cohort\-based deployments to power A/B testing and data\-driven decisions\. · Owned end\-to\-end development of the Teen Wallet product for Slice's younger user base\. · Replaced polling with MQTT, reducing API calls by 90% and significantly lowering server load\. · Built an end\-to\-end NPS platform spanning backend and Android, helping lift the Google Play rating from 3\.3 to 4\.5\.

## Education

Bachelor of Technology \- BTech, Indian Institute of Technology \(Banaras Hindu University\), Varanasi

12th, Somerville School \- India

[View the original profile](https://tal.club/meet/roshan-jha-2)

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