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Why Are Users Getting Stuck?
Are users abandoning your app because something breaks during login or checkout? 🔐💳
Authentication failures, expired sessions, failed API requests, payment errors, and broken checkout flows can prevent users from completing important actions.
I help troubleshoot and improve these critical application flows by working across the frontend, backend, APIs, authentication, databases, and payment integrations.
The network for creativity
Join 1.25M professional creatives like you
Connect with clients, get discovered, and run your business 100% commission-free
Creatives on Contra have earned over $150M and we are just getting started
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Open to new work — full-time or contract.
I'm a full-stack engineer with 6+ years of experience, working with TypeScript across the stack. Most of that time has been spent embedded in a small number of products for years at a time, rather than rotating between short gigs — which means I've owned things long enough to live with my own decisions.
What I build:
AI/LLM products — tool-calling agent workflows that act on results autonomously, retrieval-grounded generation over large corpora, structured outputs with validation, and evaluation against real outcomes. Built in-house, with the model provider behind a service boundary so routing stays swappable.
Payments — Stripe Connect and Subscriptions in production: recurring billing, plan changes, usage-based charges, marketplace payouts, and webhook-driven reconciliation so the ledger stays accurate when events arrive late, twice, or out of order.
Integrations — 15+ third-party APIs including Amazon Seller/Vendor Central, Google, and Microsoft Graph behind one normalized interface, cutting integration time by ~40%.
Real-time & scale — WebSocket services maintaining consistent state for thousands of concurrent users, with reconnection and out-of-order delivery handled explicitly.
Stack: TypeScript · React · Next.js · Node/Express · PostgreSQL · Redis · AWS · Docker · CI/CD. Claude Code and MCP tooling are part of my daily workflow.
If you're shipping something early-stage and need someone who can take a feature from schema to production without a handoff, my DMs are open.
good luck in your job search Ali
I've built Signalwatch with one purpose... to identify the gaps and deliver solutions.
Love the clarity of the mission; turning raw public signals into actionable decisions feels genuinely useful.
If you run a busy team, I’m an operations and automation specialist.
I help small businesses eliminate manual admin by turning repetitive tasks (like tracking forms, student/staff records, or timesheets) into automated background flows using Microsoft 365 tools they already pay for.
If your team is wasting hours copying data between Excel files or chasing updates, I’d be happy to build a quick, simple proof-of-concept flow for you.
Worth a quick 5-minute chat?
good luck craig!