Tech Lead & Full-Stack Developer · 8 Years Experience

Understand the problem.

Design the solution.

Build it right.

Tech Lead & Full-Stack Developer bridging technical leadership and hands-on development to turn complex ideas into reliable digital products.

Experience contributing to products for global organizations.

Rockwell Automation
Marsh
Globant
Halo Media
Selected Experience

Technical Leadership & Progression

8 years of professional growth from enterprise frontend engineering into hands on full-stack technical leadership.

Career Trajectory Overview · Select to view details

Chapter 02 · Senior Full-Stack & Tech Lead 2021 — Present

Marsh

via Halo Media

Senior Full-Stack Developer & Technical Lead

Leading a cross-functional team of ~10 while staying hands-on with development, architecture, and client collaboration.

Internal Progression
2021 · Full-Stack Developer → 2022 · Technical Lead → Today · Senior Lead

Operating at the intersection of hands on code and technical direction balancing day to day full-stack implementation with system decisions, client partnership, and team enablement.

01 / Architecture
Technical Direction & Architecture

Guiding system architecture, sprint breakdowns, and technical tradeoffs.

02 / Engineering
Hands-on Full-Stack Engineering

Active contributor across frontend and backend systems, performance, and tooling.

03 / Partnership
Client Partnership & Operations

Direct technical collaboration with enterprise stakeholders and client teams.

04 / Mentorship
Mentorship & Team Leadership

Code reviews, pairing, architectural workshops, and engineering standards.

Technical Ecosystem

Tools & Technologies

Technology should serve the solution, not the other way around.

Frontend
Angular· React· Astro· Next.js· React Native· TypeScript· RxJS· NgRx
Backend & Data
Node.js· NestJS· Strapi· FastAPI· MongoDB· PostgreSQL
Platform & Delivery
Docker· AWS· Vercel· Apigee· Jenkins· GitHub Actions· Rancher· Vault· Developer Portal
Quality, Security & Observability
Cypress· WebDriverIO· JMeter· Datadog· Komodor· SonarQube· Snyk· GitGuardian
AI-Augmented Development
GitHub Copilot· ChatGPT· Codex· Claude
Working Philosophy

From first questions to lasting software.

Software succeeds when thoughtful inquiry guides technical execution. An intentional journey connecting understanding, pragmatic architecture, and durable engineering.

01
Understand

Understand before building.

Good software starts with asking the right questions before writing code. Discovery clarifies real constraints, user needs, and business goals so technical decisions are grounded in purpose.

02
Design

Build for today without blocking tomorrow.

Architecture should serve the product, not speculative complexity. Delivering working increments early creates real feedback loops while keeping foundations adaptable.

03
Build

Build something worth putting your name on.

Avoid shortcuts that trade today's convenience for tomorrow's technical debt. The standard is simple: build reliable, maintainable software that teams can stand behind.

Selected Cases

Engineering Stories

A couple of problems worth talking about.

01 / 03
Story 01 · Pragmatic Architecture & Simplicity

Making an internal product shareable — without exposing it.

Problem

External prospects needed to interact with an internal enterprise tool, but exposing the live application would require heavy auth, security, and infrastructure overhead.

Solution

Designed a one-click export mechanism that generated a standalone, interactive HTML package. It operated offline with zero API dependencies, reduced confidential data exposure, and allowed custom tailoring in seconds.

Outcome

Consultants gained a tangible leave-behind experience for prospects without exposing internal infrastructure or adding platform complexity.

SECURE PERIMETER STANDALONE .HTML 0 dependencies
Architecture abstraction Single-file autonomous artifact extraction
Testimonials

What it's like to work together.

Reflections from colleagues, clients, and engineering leaders on collaboration, leadership, and craft.

01 / 04
01 QUALITY & OWNERSHIP

“Working with Juan was a great experience. He has a strong ability to turn designs and ideas into polished, functional products, with close attention to the details that matter. He's proactive, reliable, and always willing to suggest better solutions rather than simply executing what's asked. Communication was easy throughout, and he consistently delivered high-quality work. I'd definitely work with him again.”

Analía Luque

Founder · MVD UX Design

02 LEADERSHIP & MENTORSHIP

“I worked closely with Juan both as a developer and later as a Tech Lead. He consistently went beyond what was asked investing real time in helping others learn, stepping in whenever someone got stuck, and, as a lead, always being the first to step up for his team and the project.”

Marcelo Brinkerhoff

QA Manager · Halo Media

03 SECURITY & ASSURANCE

“We built BookMe-AI with AI at its core and solid security controls from day one, but we needed an outside perspective. Juan audited our application, architecture, and CI/CD end to end, validated every finding through controlled testing, and delivered a prioritized, reproducible report. His work surfaced risks that could have become serious issues in production. Every finding has since been turned into an automated check in our pipeline. His work remains fundamental to us.”

Fernando Portal

Founder & CEO · BookMe-AI

04 RELIABILITY & PROBLEM SOLVING

“I had the opportunity to work with Juanelo for a long time, and I recommend him without hesitation. He's highly responsible and technically strong, both in frontend and backend. He understands problems quickly and consistently looks for smart solutions. He manages deadlines very well and knows how to handle unexpected situations or things that go wrong. He's always ready to step in and figure out whatever comes up. On top of that, he's very easy to work with and a genuinely great person. I recommend him wholeheartedly.”

Carlos Aiello

Former VP of Engineering Practices · Halo Media | Partner · Next2.AI

About — Beyond the Work

Beyond the code.

Curiosity, perspective, and the human side of building software.

Curiosity often leads beyond software—into music, guitars, electronics, and taking things apart to understand how they work. Exploring different disciplines provides new perspectives and makes it easier to spot patterns and connect ideas across systems.

At the core, what matters is straightforward: building software that solves problems without creating new ones, working alongside people in a healthy environment, and delivering results clients are genuinely happy with.

Initiate a Conversation

Have a project in mind?

Let's talk about it.

Prefer direct email? hello@juanelo.dev
Typically responds within 24 hours
Direct inquiry · Zero obligation