Harman
Sidhu

Senior software engineer. Seven years of frontend depth, shipping full-stack with AI tooling, and building developer tools on the side.

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01 /Shipped at Work

Projects that shipped.

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Internal Tooling

3 Libraries That Became the Team Standard

Designed and shipped a form generation framework, a multi-step wizard engine, and a viewport observer utility — reusable internal libraries that became the standard for how product teams build merchant-facing workflows.

Impact →Eliminated repeated UI patterns across teams. Reduced feature delivery time significantly. Multiple teams adopted these as the default for multi-step flows and form-heavy interfaces.

ReactTypeScriptArchitectureInternal Tooling

Platform Engineering

Zero-Incident Migration Off a Dying Framework

Led incremental migration of a legacy server-rendered monolith and aging React codebases to a modern stack — maintaining backwards compatibility and zero merchant-facing disruptions throughout.

Impact →Zero production incidents during migration. Established migration patterns and rollout playbooks reused across the org for subsequent modernization efforts.

MigrationLegacy ModernizationReactRisk Mitigation

Product Engineering

Ship Features Without Deploying Code

Built the frontend gating logic and shared state models that connect backend configuration classes to merchant-facing UI — enabling safe, gradual feature rollouts without code deploys.

Impact →Decoupled deploys from releases entirely. Product managers control rollout scope without engineering. Instant kill-switch capability for any merchant-facing feature.

Feature FlagsBackend ConfigSaaSState Management

DevOps / Infra

Automated Pipeline From PR to Production

Architected multi-stage YAML pipelines for Dev → Staging → Prod promotion. Infrastructure as code with Terraform, container orchestration on Kubernetes (AKS), and Azure API Management with ApiOps publisher pipelines for automated API validation and publishing.

Impact →Fully automated deployment flow with CI gates at every stage. Eliminated manual deployment steps. Decreased production incidents related to deployment errors.

Azure DevOpsYAML PipelinesTerraformKubernetesAPIM

Building Independently

Products I'm shipping.

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LiveOpen Source

Shipwise — Ship Your Webapp Wisely

Built a 15-skill Claude Code plugin that guides developers through the full webapp launch lifecycle — from idea validation through post-launch growth. Skills auto-load based on what you're working on. Lifecycle hooks catch security gaps and deploy risks automatically.

Impact →A Claude Code plugin covering the webapp launch lifecycle from idea validation through post-launch growth. 15 domain skills load contextually based on what you're working on. Lifecycle hooks catch security gaps and deploy risks before they ship.

Claude CodePluginAI ToolingOpen SourceSecurityDevOpsLaunch Lifecycle

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LiveOpen Source

PromptOps — Test Your Prompts Like Code

Built an open-source Claude Code plugin that treats prompts like tested code — evaluate, improve, regression-test, benchmark across models, and execute, all in one session.

Impact →Closes the gap between writing prompts and testing them. Engineers get a repeatable evaluate → improve → verify → run loop without leaving their terminal.

Claude CodePluginAI ToolingOpen Source

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03 /Thinking

Recent writing.

All Posts

What the Claude Code Leak Actually Reveals (It's Not the Prompts)

Apr 2026

The leak exposed the full product architecture of a production coding agent — prompt caching, autonomous loops, permission hardening, multi-agent orchestration, and memory lifecycle management.

AI AgentsArchitecture

I Built a Plugin That Makes Claude Code Actually Launch-Ready — Here's What It Catches

Mar 2026

How I designed, tested, and shipped Shipwise — a Claude Code plugin with 15 domain skills, 4 lifecycle hooks, and 45+ copy-paste templates that covers the full webapp launch lifecycle.

AI ToolingClaude Code

I Built a Prompt Testing Plugin for Claude Code — Here's How

Mar 2026

PromptOps treats prompts like tested code — evaluate, improve, regression-test, and run, all without leaving your terminal.

AI ToolingClaude Code

Get in touch.

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I'll email you when I publish something new — engineering deep-dives, product updates, and building in public. One email per post, max.

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