Four years of client platforms, company products, and one of my own.

Consumer Travel Platform

Global discovery and data platform running on Kubernetes.

travel.architecture

• Ran the whole EKS environment: cluster design, node groups, autoscaling and rollout strategy, with infrastructure defined in AWS CDK.
• 90,000+ locations and over 500,000 records behind it, with Elasticsearch doing geo and full-text search and Redis holding API responses under 100ms.
• GitOps delivery through ArgoCD, so a bad release was one reverted commit rather than a manual scramble.
• CloudFront caching plus query tuning took throughput and page speed to roughly three times what it was.

Fintech Trading Platform

Live stock tournaments, leaderboards and portfolios on a real market data feed.

fintech.architecture

• Ran the microservices behind it: the main API, scheduled jobs, a leaderboard service, and a Socket.io service pushing live prices from a real-time market data feed.
• Split into separate task definitions so the socket service scales alone. When markets open and connections jump, the API and batch jobs stay flat.
• That containment is the whole design. One hot service exhausting shared capacity is how the platform goes down.
• SQS and Lambda took background jobs and notifications off the request path, which kept the APIs light. 99.9% uptime and deploys around 80% faster after moving to containers and Jenkins.

Anonymous India→

Read the full case study

A social product I own end to end: Flutter app, NestJS API, public site and an admin console.

anonymous.architecture

• Everything is mine on this one. Product decisions, the data model, the API, the app, the infrastructure and the store releases.
• NestJS on the Fastify adapter with Prisma over PostgreSQL 16, Redis 7 for sessions, rate limits and the Socket.io adapter, so realtime works across more than one API container.
• Auth is device-based rather than email or phone. A hashed device id, JWT signed RS256, refresh tokens that can be invalidated the moment somebody is banned.
• Rate limiting, profanity filtering, reports, bans and an audit log all run server side, because moderation that lives in the client is not moderation.
• Multi-stage Docker build on node:20-alpine running as a non-root user, with Postgres, Redis, the API and Nginx composed together for production.
• Flutter on the front with Firebase for push, crashlytics and analytics, RevenueCat for subscriptions and AdMob underneath the free tier.

AI Tools Directory

AI tools directory with prompt-based search, owned end to end.

• Product direction, backend and infrastructure, all mine.
• Search runs on the OpenAI API: describe the problem in plain language and get the tools that fit, rather than guessing at a category.
• Node.js and Express on MySQL, with Elasticsearch search across the catalogue and Redis caching the busiest queries.
• An image resizing pipeline behind S3 and CloudFront, so a content-heavy catalogue still loads fast.
• Also the technical SEO and page speed work, which is the half of a directory that decides whether it gets found.

Digital Business Card Platform

Digital business cards linked to physical NFC products.

• Built the entire backend, and ran both the client relationship and the delivery team through to launch.
• Card creation and editing, QR-based profile sharing, and Apple Wallet passes.
• Paired with physical NFC hardware: metal cards, wristbands and stickers, each mapped to a profile.
• Used the OpenAI API for card recognition on scan, so a photographed card becomes a contact without retyping it.

Industry News Mobile Application

Sector news, regulation updates and a knowledge base.

• Built the backend and APIs behind the mobile app: content delivery, search, and the feed that keeps professionals current on regulatory changes.

Enterprise ERP

Back-office platform for a large industrial group, running on Azure.

• Built the whole backend: employees, attendance with shift logic, leave, equipment, inventory, vendors, purchase, expenses and maintenance, in one dashboard.
• Role based access across admins, HR, vendors and technicians, so each group only sees what it should.
• This one runs on Azure rather than AWS. Blob Storage behind Multer for uploads, Azure Pipelines for delivery.
• It replaced a manual paper workflow. Reporting that used to take a day comes back in minutes.