Available for freelance projects and remote roles

I build web applications that solve real business problems.

I'm Jaime Jair, a full stack developer based in Mexico. I build with Next.js, TypeScript, Node.js and FastAPI, from the database to the deploy.

See projects Let's talk about your project

const jaimeJair = {
  role: "Fullstack dev",
  location: "Mexico",
  experience: "2+ years",
  building: "Inphera",
  openToWork: true,
};

Inphera · in beta

a3f9c21git checkout projects

01 — Projects

What I've built

★ Main project · Private beta

Inphera

Private beta for reviewing mathematical probabilities and football match context, with visible guardrails.

Result: Brings a match's recent form, stats and context together in one place, with traceable analysis.

Technical: Poisson model + Claude API for the analysis, plus a deterministic filter that only shows markets with probability ≥ 65%.

Next.jsReactTypeScriptFastAPIPythonSupabaseClaude API

Read the case study →Visit inphera.com.mx ↗

Case study

TISAX reporting system

0manual Excel-to-Word transcription

Result: Eliminated manual transcription between Excel and Word and the data loss it caused.

Technical: TypeScript-typed form with real-time validation. Next.js + Supabase.

Read the case study →

In development · Java

Appointment booking system

Result: Any business manages its services and hours from a phone; customers book through WhatsApp without installing anything.

Technical: Per-service buffer time and a WhatsApp magic link to confirm or reschedule.

7c0e4b8git merge projects → services

02 — Services

How I can help

Custom web applications

Platforms, dashboards and internal tools, from the database to the deploy.

Built it inInphera

Process automation

I turn manual, repetitive tasks, like copying data from Excel into reports, into automated workflows.

Built it inTISAX Reports

Booking systems for businesses

An online schedule you manage from your phone, with WhatsApp confirmations for your customers.

Building it inBooking system

How we'll work together

git log --oneline

01 · e1a2f03We talkYou tell me about your problem and what you want to achieve.
02 · 9b4c7d1ProposalYou get scope, timeline and cost in writing.
03 · 4f8e2a6DevelopmentProgress you can actually test, not just promises.
04 · HEADLaunch and supportI leave it running online and stay around afterwards.

03 — Stack

If I were an npm package…

…these would be my dependencies. The tools I build with, from frontend to deploy.

Frontend — fast, type-safe interfaces
Backend — APIs and business logic, my strong suit
Data — relational and document modeling
Deploy — projects live online, not just on localhost

{  "name": "jaime-jair",  "experience": "2+ years",  "dependencies": {    "frontend": ["next", "react", "typescript", "tailwind"],    "backend": ["node", "express", "fastapi", "python", "java", "claude-api"],    "data": ["postgresql", "supabase", "mongodb"],    "deploy": ["vercel", "railway", "docker", "git"]  },  "devDependencies": {    "learning": ["aws", "ai"]  }}

$ npm install jaime-jair

✔ added 17 skills, found 0 vulnerabilities

HEADgit push origin your-project

04 — Contact

Have a project or an open role? Let's talk.

Tell me what you need and I'll get back to you with a clear proposal. Working remotely from Mexico (UTC-6).

LinkedIn GitHub Download résuméPDF