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Hi, I'm

Engineer @ Uber

Sagar Shrivas.

I build systems that operate at scale.

Frontend-heavy full-stack engineer with 7+ years shipping products that reach millions. Currently designing compliance architectures and eliminating inefficiencies at Uber.

About

Engineer, architect, builder

I'm a product-minded engineer with 7+ years of building things that work at scale — and more importantly, make sense. My sweet spot is the frontend, where users actually feel the difference between good and great. But I think across the stack, and I've shipped systems that span React, Go, GraphQL, and microservices.

At Uber, I build platforms where inefficiencies compound fast and compliance isn't optional. Before that, I architected indoor navigation systems at Mapsted — the kind of maps you use inside airports and malls — and insurance platforms at Gemini Solutions that millions of people rely on daily.

I've conducted 60+ engineering interviews, mentored junior and mid-level engineers, and led cross-functional initiatives spanning frontend, backend, legal, and compliance teams. I don't just write code — I shape how products get built.

How I think about building: Every feature should earn its place. I'd rather ship something small that works perfectly than something big that sort of works. Performance isn't an afterthought — it's a feature. I've reduced latencies by 30%, cut API calls by 25%, and turned Lighthouse scores from 60 to 95+.

What I care about: System design that scales, regulatory compliance that doesn't block launches, and code the next person can actually read. The best products are built by engineers who understand the business — not just the framework.

Outside of work: I build side projects, think about making the web faster and more accessible, and occasionally teach. I like chai, clean code, and shipping things people actually use.

Me & Computers — A Brief Timeline

Timeline point
1998

Born. Not an achievement, but a necessary prerequisite.

Timeline point
2006

Touched a computer for the first time at my cousin's place. Talked about it for a month straight.

Timeline point
2010

Dad walked in with my first computer. I don't think I've been that happy since.

Timeline point
2015

College began. Wrote my first program — it didn't compile. Took several attempts to get 'Hello World' working. Worth it.

Timeline point
2017

Fell down the open-source rabbit hole. First PR merged. Started to feel like I belonged.

Timeline point
2019

First day at Gemini Solutions. Built insurance platforms used by millions. A year of firsts.

Timeline point
2021

Joined Mapsted. Built indoor navigation for airports and malls. APIs hitting a million requests a day.

Timeline point
2023

Joined Uber as SDE II. Started building systems where inefficiencies compound at scale.

Timeline point
Now

Designing compliance architectures, eliminating upload failures at scale, and conducting 60+ interviews a year. Still shipping.

Experience

Where I've built things

Software Development Engineer (SDE)

Current

Uber

Jun 2023 — Present

Bangalore, India

  • At Uber, I build and evolve systems that operate at scale — where inefficiencies compound fast and compliance isn't optional.
WorkHub Gigs Platform — Zero-Code Gig Creation
  • Architected a zero-code gig creation platform using React and shared UI primitives, enabling non-technical teams to launch gigs independently.
  • Reduced gig deployment time from 1 week to 1 day — an 86% improvement in time-to-market.
  • Integrated backend config and validation systems to ensure data integrity without manual QA overhead.
Onboarding Reliability — Doc Image Compression
  • Identified 2,500–3,500 daily upload failures caused by high-resolution images exceeding backend size limits.
  • Designed a frontend-first client-side compression pipeline — non-blocking execution with verification-safe quality thresholds.
  • Eliminated funnel drop-offs and hundreds of hours of manual support review per month.
Global Compliance & Liveness Architecture
  • Led frontend architecture for multi-region compliance launches across EMEA and US — each with fragmented legal requirements.
  • Designed an extensible consent ERD and built dynamic UI state machines driven by backend APIs.
  • Enabled safe external URL access patterns and delivered compliant launches with zero legal blockers.
Bliss Agent Tooling — NYC Scheduled Markets
  • Migrated brittle tag-based agent logic to API-driven getPlannerState architecture.
  • Surfaced real-time eligibility, tier, and token states — reducing agent time-to-resolution significantly.
Platform & Performance
  • Migrated legacy services — reduced latency by 30% and cut API calls by 25%.
  • Increased user retention by 8% through UX improvements and reduced friction.
  • Improved Bonjour LCP via async parallelization and bundle size reduction.
  • Deprecated 7 stale experiments, cleaning up technical debt across the codebase.
  • Conducted 60+ engineering interviews in 2025. Recognized at AI Hackathon.
ReactTypeScriptGoGraphQLNode.jsMicroservicesA/B TestingCI/CD

Software Developer

Mapsted

Jan 2021 — May 2023

Canada (Remote)

  • Owned the frontend for indoor navigation products deployed across malls, airports, and universities — code reaching over a million users daily.
  • Architected the cross-platform map integration library using OpenLayers — now the backbone of every Mapsted web product.
  • Improved rendering performance by 30% through canvas optimization and lazy tile loading strategies.
  • Built a CMS for property owners to manage indoor map content, POIs, and navigation rules — scaled REST APIs to handle 5× data growth.
  • Maintained 99.9% uptime across all web products through proactive monitoring and zero-downtime deployments.
  • Migrated the marketing site to Next.js + Headless WordPress — Lighthouse score jumped from 60 to 95+, organic traffic increased 20%.
ReactNext.jsTypeScriptOpenLayersCesiumJSNode.jsREST APIsAWS

Software Engineer

Gemini Solutions

Jan 2019 — Dec 2020

India

  • Built TATA AIG's self-service platforms — policy issuance, endorsements, refunds, and cancellations — serving millions of insurance customers across India.
  • Architected SSR + SEO-optimized insurance portals that drove measurable improvements in search ranking and organic acquisition.
  • Designed flexible, well-structured frontend architecture that became the engineering team's reference standard for new projects.
  • Led AWS EC2 deployment workflows and automated release pipelines, reducing operational overhead and deployment friction.
  • Defined coding standards and best practices adopted across the engineering team — improved code review velocity and consistency.
ReactJavaScriptSCSSReduxREST APIsAWS EC2SSRJest

Projects

Things I've built

FeaturedPrivate

WorkHub Gigs — Zero-Code Platform

Enterprise platform enabling non-technical teams to create and deploy gigs without engineering involvement.

Problem

Gig deployment required a full engineering cycle — taking up to a week per gig and creating bottlenecks for operations teams.

Solution

Architected a zero-code creation flow with React + shared UI primitives, integrated with backend config and validation systems.

Impact

Reduced deployment time from 1 week to 1 day (86% improvement). Freed engineering bandwidth for platform work.

ReactTypeScriptGraphQLShared UI Primitives
Featured

Indoor Maps Web Platform

Full-featured indoor navigation platform used by universities, malls, and airports worldwide.

Problem

Indoor spaces lack GPS coverage, making navigation inside large buildings frustrating and inefficient.

Solution

Built an interactive web-based indoor map with real-time positioning, route planning, and POI search — all rendered in the browser via OpenLayers.

Impact

Deployed across multiple enterprise clients. Handles 1M+ daily map interactions. Rendering performance improved 30%.

ReactTypeScriptOpenLayersCesiumJSNext.js
Featured

TATA AIG Self-Service Portal

Complete digital platform for one of India's largest insurance companies — policy issuance, endorsements, refunds, and cancellations.

Problem

Millions of customers needed a modern, fast way to manage insurance policies without visiting branches.

Solution

Built SSR + SEO-optimized self-service portals with automated workflows for policy management and claims processing.

Impact

Serves millions of active users. Reduced operational overhead through automated self-service flows.

ReactJavaScriptReduxSSRAWS EC2

Other Projects

3D Maps & Heatmap Visualization

Real-time 3D building visualization with footfall heatmaps for spatial analytics.

CesiumJSReactWebGLCanvas APITypeScript
Mapsted Kiosk — Self-Service Maps

Touch-friendly kiosk interface for indoor navigation in public spaces.

ReactTypeScriptCSS AnimationsREST APIs
ScopeArc Studio — Business Website

SEO-optimized business website with headless CMS integration and 90+ Lighthouse score.

Next.jsTypeScriptSCSSWordPress API
E-Commerce Platform for Small Businesses

Pluggable e-commerce frontend with dynamic product pages and auto-generated sitemaps.

Next.jsTypeScriptSSGDynamic Sitemap

Skills

Technologies & strengths

Frontend

ReactNext.jsTypeScriptReduxTailwind CSSSSR / SSGSEOPerformance OptimizationFramer MotionOpenLayersCesiumJS

Backend

Node.jsExpress.jsGoREST APIsGraphQLMicroservices

Databases

MongoDBPostgreSQLMySQL

Cloud & DevOps

AWS (EC2, S3, Lambda)DockerNginxCI/CDVercelGit

Core Strengths

System DesignRegulatory ComplianceArchitectureCross-Functional LeadershipMentorshipA/B TestingHiring (60+ interviews)

Contact

Let's build something together

I'm always open to interesting conversations — whether it's about a product, a system design challenge, or just talking shop about engineering at scale. Drop me a line.

Say Hello