Lead Mobile Engineer

Confidential

Mexico City, Mexico City Hybrid permanent

Posted: February 10, 2026

Job Description

About the Role

We're looking for a Lead Mobile Engineer to own our mobile applications and shape the future of Aplazo's mobile experience. You'll build the apps that customers use daily to access credit, make payments, and manage their finances.

At this level, you're the technical leader of your squad—driving mobile architecture decisions, mentoring engineers, and delivering complex features end-to-end across our Flutter codebase.

What You'll Do

Own mobile systems end-to-end — Design, build, and operate mobile applications from idea to production

Lead technically — Run design reviews, set mobile architecture direction, and make technical decisions for your squad

Mentor engineers — Help E1/E2 engineers grow through pairing, code review, and coaching

Drive quality — Champion testing strategy, performance optimization, and observability for mobile

Leverage AI strategically — Use AI for architecture exploration, refactoring, and test generation; build or champion AI-powered tools for the squad

Optimize for mobile — Ensure apps perform well on devices with limited resources and varying network conditions

Handle incidents — Lead incident response and postmortems for mobile issues

Ship predictably — Break down ambiguous problems into clear milestones and deliver on commitments

What We're Looking For

Technical

5+ years building mobile applications

Strong experience with Flutter/Dart (native iOS or Android experience also valuable)

Deep understanding of mobile architecture patterns (clean architecture, state management)

Experience optimizing for performance, battery life, and limited connectivity

Solid testing practices for mobile (unit, widget, integration tests)

Comfortable with CI/CD pipelines and mobile observability tools

AI Fluency

Uses AI tools (Copilot, Claude, ChatGPT) daily for coding, debugging, and analysis

Uses AI strategically for architecture exploration, large refactors, and prototyping

Builds or champions squad-level AI-powered tools (e.g., test generation, code review automation)

Keeps the team ahead of new AI capabilities relevant to mobile development

Leadership & Communication

Experience mentoring engineers and leading technical discussions

Clear communicator who can explain trade-offs to engineers, PMs, and stakeholders

Strong technical documentation and knowledge-sharing practices

Fluent in Spanish; working knowledge of English for cross-team collaboration

Mindset

Product-minded—you care about user experience and business outcomes

Strong ownership mentality; you see problems through to resolution

Curious about fintech and how mobile apps can improve financial access

Nice to Have

Experience in fintech, payments, or lending

Native iOS (Swift) or Android (Kotlin) experience

Backend experience (Java, Python, Go) for full-stack understanding

On-call and incident response experience

Contributions to mobile tooling, design systems, or shared components

Our Stack

Flutter/Dart · Riverpod · Clean Architecture · DataDog · CodeMagic · Jenkins
Backend: Java/Spring · AWS

Why Aplazo

Our mission is to empower financial access and opportunity across Latin America through fair, simple, and transparent solutions. Our tech vision: be the most beloved and innovative tech organization in Latin America.

We're a Series B fintech growing fast—you'll own the mobile experience that millions of customers use to access credit and manage their finances.

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