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Available for work Taking on custom software, AI, web, and QA projects — remote, US & LATAM time zones.

Jesús Ramírez Nava

I build the software your business needs — custom apps, AI that saves real hours, websites that bring in clients, and testing that catches problems before your customers do. Built on ten years of C++ and Python engineering.

Book a 30-min call See the work CV
01 Services

How I can help

Whether you need something built, the right tools and AI adopted, or what you already have tested before launch: I bring ten years of C++ and Python engineering to it, and I explain it in plain language. Every engagement starts with a short call to check the fit.

S-01 4–16 weeks or ongoing

Custom software development

Software built around how your business actually works — internal tools, automations, integrations, and full applications. Written in C++, Python, or TypeScript, depending on what the job needs, with the same rigor I used shipping code for seven years at John Deere.

  • A working application, tool, or automation — deployed and in use
  • Tested code and CI/CD, so every change stays safe to ship
  • Documentation and a handover session, so you're never locked in
S-02 2–8 weeks

Software & AI adoption

Choosing the right tools — and AI — for your workflow, then setting them up so your team actually uses them. No hype: I start with where the hours are lost, then connect off-the-shelf software, AI assistants, and custom glue only where it pays off.

  • A short audit: where time goes, and which tools or AI can win it back
  • Tools and AI assistants set up and connected to your existing systems, with cost and privacy in check
  • Training and written guides, so your team keeps using them
S-03 1–6 weeks or ongoing

Testing & QA

Finding the bugs before your customers do. I've built test automation for release pipelines and simulators so teams could test without waiting on hardware — the same discipline applies to your web app, API, or desktop software.

  • A test plan focused on what matters most to your users
  • Automated tests (Python, Google Test, end-to-end) wired into your CI
  • A pre-launch report: what's broken, what's risky, and what to fix first
S-04 2–10 weeks

Web design & development

Websites and web apps that look professional and bring in business — from a marketing site to a full product with logins and a database. Fast, mobile-friendly, and easy for you to update.

  • A design you approve before development starts
  • A fast, responsive site or app (React, Astro), live on your domain
  • Basic SEO, analytics, and a way to edit content yourself
S-05 Ongoing, part-time

Technical & engineering leadership

A part-time tech lead or engineering manager for your team. I've supervised 10+ engineers across 5 clients, run Scrum and PSI planning, and built the hiring and onboarding process for a growing team.

  • Sprint cadence, rituals, and stakeholder reporting that stick
  • Hiring loops, interview guides, and an onboarding plan
  • Code review, architecture guidance, and career mentoring for your engineers
S-??

Something else?

If it can be solved with software, let's talk. Tell me the problem — not the solution — and I'll tell you honestly whether I'm the right person for it.

Describe your problem
02 Work

Proof, not promises

Selected engagements. Each one lists what changed as a result — the numbers matter more than the tech stack.

2026 eQual Business Solutions active

Mi 70-20-10 — Leadership Coaching Platform

Lead engineer — design, build, and operations

Participants, coaches, and admins run a whole leadership program in one app — from submitting work to getting AI-assisted evaluation and coach feedback.

Access levels
4
Backend functions
9
Status
Live
  • react
  • typescript
  • supabase
  • ai
  • client-work
2026 active

carterapp — Personal Finance PWA

Design, build, and launch

A finance tracker that logs an expense in three taps, works with no signal, and shows when card payments and bills will collide before they do.

Taps per expense
3
Languages
ES / EN
Works offline
Yes
  • react
  • typescript
  • pwa
  • supabase
  • offline-first
Live ↗
completed

IoT Biosignal Monitoring Platform

Real-time humidity, temperature, and heart-rate sensing platform — winner of the Intel challenge at SISCTI 40.

  • iot
  • embedded
  • c
  • sensors
  • award
All projects
Available for work Taking on custom software, AI, web, and QA projects — remote, US & LATAM time zones.

Have a problem software could solve?

Tell me what you're working on and what's in the way — something to build, tools to adopt, or an app to test before launch. If I'm not the right person for it, I'll say so — and point you at someone who is.

Book a 30-min call Or send an email

jesusramirezn.tech@gmail.com