Application Architecture
Component-based front ends that are easy to extend. I've merged micro-frontends into a monorepo, built shared UI libraries, and connected React, Next.js and Angular apps to backend APIs.
Open to new roles and consulting
Sangwin Gawande Front-End Architect · Technical Lead · SRE · Problem Solver
I'm an architect, team lead and problem solver with 11+ years of experience. I design how large web platforms should be built, lead the teams that build them, and keep them reliable in production, from SRE monitoring to fixing live bugs fast. I use AI every day to work faster, without lowering the bar on quality.
Recruiter? Here's the 30-second summary ↓
- AWS Certified Developer (Associate)
- AI-enabled engineering
- India · Open to relocation
11+ yearsenterprise web & mobile
- 11+years in enterprise engineering
- 800+websites migrated to AEM SaaS
- 200+repositories migrated to GitHub & GCP
- 500+screens modernised on React.js
- <3 sresponse times held in production
- 6engineers led & mentored
For recruiters
At a glance
Everything you need in 30 seconds.
- What I do
- I design how large web platforms are built, lead the teams that build them, and solve the hard problems along the way, from moving old systems onto modern technology to fixing issues in production. I also run production support (SRE), and use AI tools every day to deliver faster.
- Roles I'm open to
- Senior / Staff Software Engineer (Front End) · Front-End Architect · Technical Lead
- Experience
- 11+ years in total (since 2015), leading teams since 2017
- Scope
- Own architecture and delivery across 2 concurrent client programmes, 200+ repositories and a team of 6 engineers, plus L2 production support
- Current role
- Consultant, Engineering (Technical Lead) at GlobalLogic, since March 2025
- Before that
- Publicis Sapient, GlobalLogic, Persistent Systems
- Location
- India · Open to relocation
- Currently growing in
- Back end (Node.js, NestJS, APIs) and DevOps (CI/CD, Docker, cloud), using Claude Code to learn faster while I build
- Notice period
- 90 days
- Education
- B.E., Electronics & Telecommunication Engineering · AWS Certified Developer (Associate)
Main skills
- React
- Next.js
- Angular
- TypeScript
- JavaScript
- Node.js
- Adobe Experience Manager (AEM)
- GitHub Actions CI/CD
- Google Cloud (Cloud Run)
- AWS (certified)
- Jest · Playwright
- Front-end system design
- Team leadership
- AI tools (Claude Code, Copilot)
- Site Reliability (SRE)
- Production support & RCA
Highlights
- Led the front end of an 800+ website migration, delivered ahead of schedule
- Moved 200+ code repositories and 500+ screens from Angular to React
- Lead a team of 6 engineers and L2 production support: incident triage, live bug fixes and root cause analysis, with response times under 3 seconds
About
I like building things that keep working after launch.
I've spent the last 11 years building and looking after large web and mobile apps, mostly for telecom companies, consumer brands and digital agencies.
These days I lead teams and own the technical direction on client programmes, but I still spend a good part of my week in the code. A lot of the last year has been production work: monitoring, chasing down performance problems, and working out what actually hurts users when something breaks.
I care about good code reviews, teams that understand why a decision was made, and automating the dull parts so people can spend their time on the interesting ones. That's also why I use AI tools every day: they take care of a lot of the repetitive work.
More about how I work
Technical skills
- Analysis, design, development, testing and long-term maintenance of applications.
- Leading front-end teams and keeping them working well together.
- AEM for content management, with an eye on performance and user experience.
- Angular CLI, ReactJS, Webpack and building modular libraries.
- Sass and Less for styling that stays easy to maintain.
- Tuning code to improve Real User Monitoring (RUM) and Lighthouse scores.
- Turning designs into working prototypes and production code.
- Working directly with clients and agencies on requirements and ongoing support.
- UX basics, accessibility and Progressive Web Apps (PWAs).
Client communication
I work directly with clients, agencies and business teams. I'd rather ask an awkward question early than find a misunderstanding in production.
Teamwork and problem-solving
I enjoy working in a team, and I like the problem-solving side of the job as much as the building side.
Project experience
Over the years I've built online stores, bidding systems and CRM apps, mostly in Agile teams working to tight deadlines.
What I do
Architecture expertise
Most of my recent work is moving large, older codebases onto modern stacks and setting up everything around them: repo structure, CI/CD, cloud deployment and the release process. I write it all down as playbooks so the next team doesn't start from zero.
Modernisation Strategy
Planning migrations across hundreds of repos: upgrading dependencies, making sure features behave the same, and testing all the way to production. I write the playbooks and migration reports as I go.
Platform & DevOps
Setting GitHub up properly (branching, access, workflows), building GitHub Actions pipelines, deploying to Google Cloud Run, and using canary releases and feature flags to keep releases low-risk.
Performance & Reliability
Finding what's slow and fixing it, whether that's page load or build time. On my current project we keep response times under 3 seconds, and I lead the root cause analysis when something breaks.
Quality & Governance
Clear code review standards and good habits, backed up by Jest, React Testing Library, Playwright and SonarQube.
Multi-Site & Global Delivery
Sites that run in many countries and languages on AEM SaaS, with the same accessibility and SEO standards everywhere.
Site Reliability (SRE) & Production Support
I lead L2 production support: watching app health and logs, triaging incidents, fixing live bugs quickly, and running root cause analysis so the same problem doesn't come back. Releases go out behind canary deployments and feature flags, and we keep to our SLAs.
AI-Enabled Engineering BONUS
I use Claude Code and Gemini for code conversion, tests and the repetitive jobs nobody enjoys. See how I use AI
Case studies
Projects I've led
A few projects I'm proud of: what the situation was, what I did, and how it turned out.
200+repositories migrated · 500+ screens on React.js
Global marketing & advertising groupGlobalLogic · 2025 - Present
Enterprise Front-End Modernisation & Platform Migration
Technical Lead on two projects running at the same time. I owned the technical strategy and the delivery.
- Situation
- 200+ repos and 500+ screens on old Angular and micro-frontends, with the code and pipelines sitting in GitLab.
- What I did
- I owned the migration plan from start to finish: dependencies, front end, APIs, CI/CD, deployment and testing. We merged the micro-frontends into a monorepo, moved everything from GitLab to GitHub with proper branching and access rules, and built GitHub Actions pipelines that deploy to GCP Cloud Run. I also connected the new React front ends to the backend APIs and worked with DevOps, QA and infra on release risk.
- Docs & tools
- I wrote the migration playbooks, guides and CI/CD reports, and used Claude Code and Gemini to speed up code conversion, testing and the repetitive bits.
- Result
- 200+ repos moved to GitHub and deploying to GCP through automated pipelines. 500+ screens rebuilt in React and running in production.
800+websites delivered ahead of schedule
Global FMCG brand portfolioPublicis Sapient · 2021 - 2025
AEM SaaS Multi-Site Platform Migration
Front-End Lead, working with several agencies across many markets and languages.
- Situation
- 800+ brand websites that had to be moved and redesigned on AEM SaaS, with several agencies working on them at once.
- What I did
- I led the front-end team. We used the same speed, Lighthouse, accessibility and SEO standards in every market, shipped to production every week, and I kept the agencies, platform support and infra teams in sync.
- Result
- All 800+ sites went live ahead of schedule, and we were nominated for the client's "Partnering for Client Impact" and "Consumer Products: Recognition & Gratitude" awards.
<3 sresponse times held · SLA adherence
Major telecom providerGlobalLogic · 2025 - Present
Site Reliability (SRE) & Production Support
Technical Lead and L2 Support Team Lead for a team of 6 engineers.
- Situation
- Website and mobile app pages where speed really matters, plus production issues that needed someone to dig in and fix them.
- What I did
- I tracked down the bottlenecks and improved page load, used canary releases and feature flags so we could ship without surprises, and led L2 incident handling with proper root cause analysis, health checks and log monitoring.
- Result
- Response times stay under 3 seconds, releases are stable and we meet our SLAs. I also coach the team of 6 engineers.
30%+faster builds
Servcorp: AngularJS to Angular
Team Lead
- Situation
- A serviced and virtual office platform used in 125+ business centres across 21 countries, still running on AngularJS.
- Result
- We moved it to Angular 5 and cleaned up the build process. Builds got more than 30% faster.
55s to 10spage load time
Web Application Performance Recovery
smartData Enterprises · 2017 - 2018
- Situation
- A web app that took 55 seconds to load, with slow builds on top.
- Result
- After a round of process optimisation, load time dropped from 55 seconds to 10, and builds got 20% faster.
★ Bonus
I use AI to get through the boring parts faster.
AI tools are part of how I work every day. They help with the repetitive side of migrations, which leaves more time for design decisions and code quality.
Code conversion
Claude Code and Gemini help me convert old Angular code to React much faster on big migrations.
Testing
I use AI to draft and update tests, then run them with Jest, React Testing Library and Playwright.
Automation
Repetitive jobs across hundreds of repos get scripted or AI-assisted, so the team can focus on the real work.
Debugging
Copilot, Claude and Gemini help me read unfamiliar code, look into performance issues and find the cause quicker.
Documentation
Playbooks, guides and migration reports get written faster, so knowledge doesn't stay stuck in one person's head.
Same quality bar
Anything AI writes still goes through code review and our usual checks (Jest, React Testing Library, Playwright, SonarQube).
Currently growing
Going beyond the front end with Claude Code
I'm using Claude Code to get stronger on the back end (Node.js, NestJS, APIs, databases) and the DevOps side (GitHub Actions, Docker, cloud deployments). It helps me read unfamiliar code, try ideas quickly and learn while I build, so I can own more of the stack, not just the UI.
Career
Experience
From the first hire at a small start-up to leading two client programmes at once.
-
GlobalLogic CURRENT
Mar 2025 - PresentConsultant, Engineering · Technical Lead · L2 Support Team Lead
Impact: Moved 200+ repositories and 500+ screens from legacy Angular to React with automated CI/CD on GCP, while keeping production response times under 3 seconds and meeting SLAs.
- I lead two client programmes at the same time and own the technical strategy and delivery.
- I mentor a team of 6 engineers through sprint planning, design discussions, code reviews and releases.
- I sit between the business and tech teams, turning requirements into solutions and clearing blockers.
- I run L2 support for critical incidents and root cause analysis, keep us within SLA and guide the support engineers.
More details
- Agile delivery from sprint planning through to release and production deployment.
- SRE monitoring and performance work, looking at issues that affect customers across front end, back end, APIs and infra.
- Architecture discussions on code structure, where APIs should live, observability and keeping things maintainable.
- Hands-on development with React, Redux, Node.js and custom UI libraries.
- Bringing AI tools (GitHub Copilot, Claude, Gemini) into the team's workflow to automate repetitive development tasks, cut manual effort and save development time.
- Working with clients, ACT owners and solution architects so the tech matches what the business needs.
-
Publicis Sapient
Nov 2021 - Feb 2025 · MumbaiSenior Experience Engineer · Front-End Lead
Impact: Delivered 800+ websites onto AEM SaaS ahead of schedule across multiple agencies and markets, with weekly production releases.
- I joined without knowing AEM, picked it up quickly and was leading the front-end team within weeks.
- I was the main front-end contact for the client, partner agencies, platform support and infra teams.
- I ran the weekly production deployments, code reviews and front-end bug fixing.
More details
- Led the front end of the 800-site migration to AEM SaaS, plus the Level 3 support team.
- The client thanked us for finishing well ahead of the deadline.
- Nominated for the "Partnering for Client Impact" and "Consumer Products: Recognition & Gratitude" awards.
- Known for keeping the team's mood up and the jokes coming.
-
GlobalLogic
Aug 2019 - Nov 2021Associate Consultant Engineering · Associate Technical Consultant
Impact: Recognised with the GlobalLogic Eminence Award (Q4 2020) for front-end delivery on large enterprise products, including BMC Software.
- Built secure, reliable front ends for large enterprise products, including BMC Software.
- Led a team of front-end developers and joined architecture discussions and client sessions on improving the UI.
- Integrated APIs and adapted the client's UI libraries so we could reuse them on later work.
- Handled user stories, code reviews and app performance, and trained interns until they could work on their own.
- Received the GlobalLogic Eminence Award (Q4 2020) and was nominated again in Q1 2021.
-
Persistent Systems
Jun 2018 - Jul 2019Senior UI Developer · Team Lead
Impact: Delivered projects ahead of schedule as UI team lead; Bravo Work Award (Q1 2019).
- Built responsive front-end modules with Angular 6 and React on custom UI libraries for an enterprise AI product.
- Managed the UI team, code reviews and debugging, and delivered ahead of schedule. Won the Bravo Work Award (Q1 2019).
More details
- Built reusable UI components so new features were quicker to add.
- Developed and integrated REST APIs using Node.js for medium-scale applications.
- Improved performance by fixing slow rendering and API calls.
- Worked with product owners, designers and backend teams to turn requirements into working features.
-
smartData Enterprises
Apr 2017 - May 2018Ionic Developer (Big Data) · Associate Delivery
Impact: Cut a web application's load time from 55 seconds to 10 and its build time by 20%.
- Led the team migrating apps, and built web and Android/iOS apps with Ionic 3, Angular 4 and AngularJS.
- Ran several projects at once, on time and on budget, talking to clients directly.
-
Kratin LLC
Jul 2016 - Apr 2017Associate Technologist
Impact: Built real-time WebSocket messaging with read receipts for a healthcare communication platform, kept in sync across web, Android and iOS.
- Built the AngularJS web side of a healthcare communication platform that also ran on Android and iOS.
- Implemented real-time messaging over WebSockets, so conversations stayed in sync across web and mobile.
- Built read receipts, so users could see the status of every message in real time.
- Made sure messaging looked and behaved the same on every platform.
- Worked within HIPAA rules for healthcare apps and mentored junior developers.
-
Flying Penguins
May 2015 - Jun 2016Junior Developer (Full Stack) · first employee
- Built 5+ web and mobile apps on my own for iOS and Android, from the UI down to the database.
- Did both development and testing, with JavaScript, PHP, Laravel, Node.js, AngularJS and Ionic.
Credentials
Education, certifications & awards
AWS Certified Developer (Associate)
- ReactJS, Publicis Sapient (Jul 2024)
- React, LinkedIn Learning
- Angular, Udemy
Awards & recognition
- Eminence Award, GlobalLogic (Q4 2020), nominated again in Q1 2021
- Bravo Work Award, Persistent Systems (Q1 2019)
- Client Appreciation (2018) · Client Bonus (2017)
- Nominated: "Partnering for Client Impact" and "Consumer Products: Recognition & Gratitude"
Education
- B.E., Electronics & Telecommunication Engineering
Rajiv Gandhi College of Engineering & Research (RTM Nagpur University) · 2010 - 2014 · 1st place, final-year project - IT Trainee, Web Technologies
Naresh i Technologies, Hyderabad · 2014 - Junior Developer Trainee
IT Mystix, Nagpur · 2013
School
- H.S.C. (Science), Amaravati Board, Z.P. Jr. College · 2010 · 79.16%, first division with distinction
- S.S.C., Amaravati Board, Z.P. High School · 2008 · 84%, first division with distinction; MS-CIT 84%
Portfolio
Things I've built
Some of the products I built earlier in my career, from mobile apps to online stores.
Web Developer · Kratin LLC
Healthcare Communication Platform
Real-time messaging for a healthcare app used on the web, Android and iOS. I built the web side, with WebSocket-based messaging that stays in sync across devices, and read receipts so users can see the status of each message as it happens.
- AngularJS
- WebSockets
- Real-time messaging
- Read receipts
- HIPAA
Owner & Developer
Peek@Menu
My own side project: a free QR-code menu for restaurants and hotels, so they can stop printing paper and plastic menus.
- Angular
- TypeScript
- Laravel
Front-End Developer
GIVE Gita App
Built the website and reworked the checkout for a spiritual-learning app, which brought 20% more clicks and purchases.
- Angular
- Cordova
- JavaScript
Full Stack Developer
Cabblo
An intercity cab-booking marketplace with live quotes. The goal was booking a cab in as few taps as possible.
- Ionic
- Angular
- Node.js
- MongoDB
Mobile Developer (Android & iOS)
RISE Living
A real-time app for managing building staff and residents. I worked on the UI, APIs, back end and database.
- Ionic
- APIs
- Database
Full Stack Developer
Cympler-Mails
A bulk email platform where each user could see monthly usage charts and an estimate of their costs.
- AWS SES
- PHP
- Angular
- SuiteCRM
Magento Developer
Toolsvilla
An online store for power tools, machinery and DIY kit. I handled the changes from design through to launch.
- Magento
- PHP
- jQuery
Toolbox
Tools and tech I use
Front-End
- React.js
- Next.js
- Redux
- Angular
- AngularJS
- TypeScript
- JavaScript
- HTML5
- CSS3
- Sass / Less
- Webpack
- Angular Material
- PrimeNG
Architecture
- Front-end system design
- Monorepo
- Micro-frontends
- Component libraries
- API integration
- Microservices
Back-End & Data
- Node.js
- NestJS
- GraphQL
- Laravel
- MongoDB
- MySQL
Cloud, DevOps & SRE
- Google Cloud Run
- AWS
- GitHub Actions
- CI/CD
- Docker
- Git · GitHub · GitLab
- Canary releases
- Feature flags
- SRE monitoring
- Incident management
- Root cause analysis
- Production bug fixing
- Log & health monitoring
- SLA management
Testing & Quality
- Jest
- React Testing Library
- Playwright
- SonarQube
- Lighthouse
AI Tools
- Claude Code
- Gemini
- GitHub Copilot
Platforms & CMS
- AEM SaaS
- React Native
- Ionic
- Cordova
- WordPress
- Magento
- SugarCRM
Ways of working
- Agile / Scrum
- Code reviews
- Mentoring
- Release management
- RCA & L2 support
- Stakeholder management
Learn and share
Things I've written and shared
Articles on Medium
All articles →
How Do I Optimise Images For My WebsitesMedium · Performance
7 Things to Keep in Mind to Reduce Page Size and Loading Time of a WebsiteMedium · Performance
PNG vs SVG vs WebP vs JPEGMedium · Images
Mobile First vs Desktop FirstMedium · CSS
Save Route History in Angular RoutingMedium · Angular
Modules Eager Loading, Preloading and Lazy Loading in AngularMedium · Angular
Manual Component Bootstrapping in Angular, DynamicallyMedium · Angular
Domain State vs UI StateMedium · Architecture
Unit Tests vs Integration TestsMedium · Testing
Open-source projects on GitHub
GitHub profile →85 stars and 142 forks across 59 public repositories (as of November 2026)
Student management CRUD app in Angular 4Angular11 stars25 forks
Angular 5 sample demo applicationAngular10 stars56 forks
Angular 8 CRUD app for beginnersAngular8 stars10 forks
CRUD student management in Angular 13Angular7 stars1 fork
Angular 7 CRUD demo applicationAngular4 stars40 forks
Student management app in React 18React4 stars0 forks
Eager, preloading and lazy module loading in AngularAngular4 stars0 forks
Server-side rendering with Angular UniversalAngular3 stars1 fork
Virtual scrolling in AngularAngular3 stars0 forks
Manual bootstrapping of the initial component in AngularAngular3 stars0 forks
Next.js starter applicationNext.js1 star2 forks
React starter applicationReact1 star0 forks
Let's work together
Book a session with me
Planning a migration, stuck with a slow site, or wondering how to use AI in your team? Book a session and we can talk it through. I do architecture and migration calls, performance reviews, AI sessions and mentoring. Your request lands straight in my inbox.
- Emailimsangwin@gmail.com
- LocationIndia · Open to relocation
- Time zoneIST (UTC+5:30) · works across time zones
- LanguagesEnglish, Hindi, Marathi, Spanish
- Response timeUsually within one working day