Matías Fernández

ABOUT · PROFILE & WORKING STYLE

Full-stack ownership.
Product judgment.
Hands-on leadership.

I’m a Senior Full-Stack Engineer who builds reliable products with TypeScript, React, Next.js, Node.js, AWS, and production AI systems.

01 / PROFILE

Frontend depth.
Full-stack ownership.

TypeScript, React, Next.js, and frontend architecture are my deepest strengths. More than ten years of product work have also taken me through Node.js APIs, data, AWS and Azure delivery, distributed workflows, and applied AI—enough range to own the complete system behind an interface.

Today I lead the frontend of an enterprise AI product while contributing hands-on across its surrounding stack. I care about clear product states, honest evidence, maintainable boundaries, and teams that can explain why a system works the way it does.

02 / LEADERSHIP BEHAVIOR

Direction through
the work itself.

Leadership is a behavior in my current role, not an inflated formal title.

01HOW I LEAD

Stay hands-on

I stay close to architecture and implementation, especially where frontend decisions meet APIs, data, AI behavior, and delivery constraints.

02HOW I LEAD

Make decisions legible

I write down conventions, constraints, and trade-offs so the team can challenge a decision and maintain it after the original context fades.

03HOW I LEAD

Raise the team

Code reviews, mentoring, pairing, and useful documentation are part of delivery—not work postponed until after the product ships.

03 / WORKING STYLE

Make the important things
explicit.

The habits I bring to ambiguous, cross-functional product work.

01

PRODUCT

Start from the user state and the operational reality, then choose the architecture.

02

DELIVERY

Prefer small, observable slices with explicit failure and recovery paths.

03

QUALITY

Use types, tests, accessibility, and review as design tools—not only as gates.

04

COMMUNICATION

Surface uncertainty early and separate measured results, implemented capabilities, and targets.

04 / SELECTED EXPERIENCE

A concise path through
ten years of delivery.

The full résumé carries the complete history; these roles show the through-line and link to the evidence that can be published.

Open the complete résumé
01
2022 — NOW
Amplity Health

Argeniss Software

Senior Full-Stack Engineer

Frontend lead of AI Studio and hands-on contributor across Azure IC Portal, an inherited Website Chatbot, an internal SDLC platform, and Amplity.com.

1,000+ documents processed · 35% faster BI dashboard
02
2021 — 2022
Bloomberg LP · Workpaper

Endava

Full-Stack Engineer

React, Redux, TypeScript, Node.js, PostgreSQL, Docker, and AWS during the product’s beta launch, plus Web Vitals and end-to-end coverage.

Frontend + backend · mentoring and reviews in a 5-person team
03
2019 — 2021
TechInsights · BA147 · SUACI

Hexacta / GlobalLogic

Full-Stack Engineer

Serverless migration, Angular 7-to-12 modernization, analytics widgets, Terraform infrastructure, Ionic mobile delivery, and Java/Spring Boot services.

Team migration reduced infrastructure cost ≈ 30%
04
2016 — 2019
Government of Entre Ríos · Genosha

Earlier work

Software Engineer

Public-sector platforms with PHP, Oracle, React and Laravel, ETL automation with Node.js, and a video-generation platform on Docker, AWS ECS, and FFmpeg.

Regulated systems · auditing · traceability · compliance

05 / PREFERRED ENVIRONMENT

Autonomy, context,
and useful constraints.

I do my best work with product teams that share context, trust engineers with decisions, and care about reliable delivery.

BEST-FIT ROLES
Senior Full-Stack Engineer · TypeScript / React / Next.js / Node.js / AWS · AI-enabled products
PREFERRED ENVIRONMENT
Remote from Argentina with overlap across American time zones · B2B SaaS, AI platforms, developer tools, data products, fintech, healthtech, and enterprise software · Product teams with technical autonomy and room to make architectural decisions

Based in Argentina · working across American time zones

Let’s talk about
the product and the system.

I’m focused on Senior Full-Stack Engineer roles across TypeScript, React, Next.js, Node.js, AWS, and AI-enabled products.