I make teams AI-native, so they ship faster with guardrails.

Why teams hire me

A Tech Lead who ships, secures and decides, with AI in the loop.

• A Tech Lead you can trustI own architecture and delivery across MyTCS, Payments, Call Compass and the TA Portal.Proof: 8 Travelopia stories
• Clear with stakeholdersI work with business, data and product people to resolve issues and unblock delivery.Proof: Call Compass
• Sharp requirementsIdeas become specs and tickets with acceptance checks before anyone writes code.Proof: AI workflow
• AI-enabled teams30 skills and 4 agents rolled out across teams and brands, with people in charge.Proof: DX team skills
• Ships faster, safelyCI/CD with automated gates across a 6-app monorepo cut deployment failures by 35%.Proof: Multi-brand platform
• Security by defaultEdge firewall and managed sign-in, personal-data redaction, and payments that never lose a transaction.Proof: TA Portal
• End-to-end ownershipFrom the first conversation to launch and support: Sinclairs built end to end, KarmaDaan founded and built.Proof: Sinclairs website
• Drives key decisionsTrade-offs are written down and agreed: 14 recorded architecture decisions on one product alone.Proof: TA Portal
• Engineering and product best practiceTest-first work, 75%+ coverage gates, and mentoring engineers on debugging and architecture.Proof: Turning mistakes into checks

Skills

Skills

Frontend

• Next.js
• React
• TypeScript
• JavaScript
• Tailwind CSS
• React Query
• Framer Motion
• Chakra UI
• Storybook

Backend

• Node.js
• Express.js
• NestJS
• tRPC
• Zod
• Prisma ORM
• PostgreSQL
• Redis
• DynamoDB
• REST APIs
• Microservices

Cloud & Infra

• AWS (EC2, Lambda, Step Functions, S3, SQS, EventBridge, API Gateway, CloudFront, WAF, CloudWatch, Amplify, CDK)
• Docker
• CI/CD
• GitHub Actions
• Husky
• Lint-Staged

GenAI & LLMs

• Google Gemini
• AWS Bedrock
• OpenRouter
• Prompt Engineering
• Cursor AI
• Claude Code (Skills, Subagents, Worktrees)

Testing & Observability

• Jest
• Vitest
• React Testing Library
• Datadog APM
• Sentry
• New Relic

Learnings

What I learned scaling AI

From AI-assisted to AI-delivered, across teams and brands — the journey, and the lessons worth sharing.

1. StartV1 AI-assistedPersonal practice
2. Apr 2026V2 AI-deliveredFY26 AI-SDLC playbook
3. Jun 202612 Domain skillsDX team skills
4. Jul – Oct 2026v2.0 Released Oct 2026TCS plugin
5. Now3 Products on the workflowAcross brands and teams

• Learning 011 min readFrom AI-assisted to AI-delivered: what actually changedThe shift is not a better autocomplete. The engineer’s job moves from typing to specifying, reviewing and deciding.Read
• Learning 021 min readNever let an agent grade its own workThe agent that wrote the code is the worst one to test it. A fresh verifier changed how much we trust a PR.Read
• Learning 031 min readGive agents the context you’d give a new hireAgents fail the same way new joiners do: missing context. So we wrote it down once, for both.Read
• Learning 041 min readTurn every repeated mistake into a checkReview comments are forgotten. Checks are not. A fortnightly habit turned lessons into guards.Read
• Learning 051 min readGuardrails that make teams faster, not slowerTeams move faster with AI when they trust it. Clear limits are what create that trust.Read
• Learning 061 min readScaling AI skills across brands and teamsOne team’s good habits only matter once other teams can use them. Shared skills made that possible.Read

Freelance · client spotlight

A hotel website and booking engine that brought in $40K+ (₹35L+) in revenue.

Sinclairs Hotels · Hospitality · Freelance · built end to end

Sinclairs Hotels Ltd · listed on NSE & BSE

https://sinclairshotels.com

Live site ↗

Revenue via the website

$40K+$40K+

Conversion, first month

15%15%

Products shipped

22

Engagement value: undisclosed

What I delivered

• Booking engineDirect booking across properties
• ICICI paymentsPayments and refunds
• AI layerBusiness teams build on the architecture
• Secrets guardrailsGitHub Actions to UAT and production
• Staff portalBookings, enquiries, task assignment
• Inventory and ratesCalendar view; commission, breakfast and child rates
• Vouchers and quotationsGuest and travel agent vouchers
• NotificationsEmail, business notifications, newsletters
• Data backupBusiness data kept safe

Recognition

What people say

• “Subham is an excellent software engineer. His ability to single handedly manage big projects and super fast closure is what makes him special. He also focuses a lot on the quality of code written and is good at mentoring others. I'm sure he'll make a great addition to any team!”

• “I had the pleasure of working with Subham on insurance tech projects, and I can confidently say that he is an asset to any team. Subham has a fast execution and is open to new ideas. He has a learning mindset and is open to experimentation.”

• “I had the pleasure of working with Subham for almost 3 years involving a lot of projects. He is a very talented engineer with deep knowledge of how systems work. His expertise in frontend and backend helped our team complete projects in time and with utmost perfection.”

Contact

Let’s build something that moves a number.

Hiring, referring, or have a project in mind?

• LinkedIn/in/subhamsahadeep
• GitHub/Subhamsahadeep
• ResumePDF