Integration reliability lab
Webhook debugging, replay safety, provider-specific diagnosis, and incident artifacts for external integrations that fail in messy real-world ways.
ar27111994.dev · Rawalpindi, Pakistan
I’m Ahmed Rehan — a full-stack engineer and solo builder working like a small developer lab: shipping practical tools, tightening reliability, documenting the system, and taking selective freelance work where devtools, webhooks, automation, or AI-agent workflows need clear structure.
Public GitHub metrics update in-browser when available.
A focused bench for tools, systems, proof surfaces, and selective client work — practical experiments that can become reliable products.
Webhook debugging, replay safety, provider-specific diagnosis, and incident artifacts for external integrations that fail in messy real-world ways.
Reusable skills, prompts, host-aware agent assets, and lifecycle tooling so AI-assisted development does not become another dumping ground.
Small internal tools, scripts, dashboards, and workflow utilities that are observable, maintainable, and boring in the right places.
Portfolio, docs, launch pages, resumes, and proof surfaces polished for speed, clarity, accessibility, SEO, and trust.
Live product evidence from the places where the work is actually happening: repos, launch surfaces, docs, and systems that can keep growing into paid tools.
Priority #1 · Agent tooling
Node.js / TypeScript CLI for discovering, staging, activating, and wiring reusable AI-agent assets across VS Code/Copilot, OpenCode, Cursor, Zed, Claude Code, and Pi.
Priority #2 · Webhook tooling
Enterprise-grade webhook testing suite for capturing, inspecting, replaying, forwarding, validating, and mocking webhook traffic in real time without persistent tunnels.
Priority #3 · Design-to-code agents
AI-agent skill for creating, auditing, and maintaining Penpot design systems, prototypes, tokens, and design-to-code workflows via MCP.
Agent skill curation
Curated collection of 200+ agentic skills for Claude Code / Antigravity / Cursor-style AI-agent workflows.
Supporting work that shows range beyond the headline tools: visual systems, challenge builds, mobile context products, and data-quality workflows.
Open-source color palette generator focused on WCAG-aware visual tooling, typography, UX research, and zero-cost infrastructure.
Google I/O 2026 Code the Countdown challenge project using TypeScript, React/Next.js, canvas, motion, Web Audio, and WebGL-oriented UI work.
Android-first call-time context and relationship notes product focused on useful, practical in-call context.
Data quality and ETL validation product direction for CSV, Excel, JSON, and structured-data workflows.
Recent launch notes, technical posts, and repository activity pulled from public surfaces when available. The curated fallback stays useful even when third-party APIs are slow or blocked.
Freelance proof surface
The Upwork surface is being tightened around practical engineering outcomes: webhook/API debugging, internal tools, automation-heavy products, developer tooling, and reliable async delivery.
Client-facing profile now points at practical tooling, workflow systems, reliability, and async delivery.
Read from the profile API as a public profile signal; still best used for selective, focused work.
API-read public portfolio surface shows a broad historical proof base to refine and prioritize.
Approval-gated Upwork API plan is ready for adding these as public Other Experience proof entries.
Public Upwork edits are approval-gated: profile title/overview are drafted for manual/UI update, while API-writable proof additions are staged separately and will not be published without explicit approval.
Verifiable background signals: certifications, partner identity, older shipped projects, and founder/operator work that still supports the current devtools and automation direction.
Lightweight ways to support the public lab: maintenance, docs, product experiments, and faster shipping on open-source tools.
For direct sponsorship/partnership, email admin@ar27111994.dev or use WhatsApp.
The recurring work pattern across the portfolio: practical tooling, integration reliability, automation, agent workflows, performance, and production-minded delivery.
Primary surfaces for technical credibility, client trust, launch proof, and community history. Discord: ar27111994.
Three focused exports for different hiring contexts: full depth, client-facing project work, and a fast one-page scan.
Direct routes for project briefs, partnership context, and faster async follow-up.