Hybrid Senior Staff Engineer – Mobile/Flutter

Posted last month

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About the role

  • Lead the evolution of mobile platform engineering to create a premier BNPL experience in Mexico. Oversee architecture, modernization, and mentoring within the mobile team.

Responsibilities

  • Lead the evolution of our mobile platform to make it the fastest, most reliable, and delightful BNPL experience in Mexico.
  • Own the entire mobile architecture and codebase, drive the modernization toward a clean, modular, scalable Flutter foundation.
  • Define the long-term technical vision, establish world-class engineering standards, mentor and level-up the mobile team.
  • Drive documentation, rituals, and onboarding, and regularly present roadmap, architectural decisions, and technical wins to various stakeholders.
  • Own end-to-end mobile architecture and codebase evolution: modular, testable, performant, secure, and built for rapid growth in Mexico and LATAM.
  • Define and enforce mobile engineering standards: best practices, design system adoption, code reviews, documentation (Design Docs, ADRs), observability, testing, CI/CD, and incident management.
  • Hands-on drive Flutter migrations, native plugin development, performance optimizations, and complex feature delivery when needed.
  • Be the company’s mobile/Flutter authority and primary technical mentor.
  • Run mobile rituals, onboarding programs, tech talks, and brown-bag sessions to level-up the entire team.

Requirements

  • Experience 6+ years hands-on Flutter/Dart in production at scale (millions of users preferred)
  • Multiple successful large-scale Flutter migrations or greenfield builds shipped to stores
  • Proven track record modernizing legacy mobile codebases without sacrificing velocity
  • Experience leading mobile engineering at fintech or high-growth consumer apps
  • Shipped high-impact financial products (lending, savings, payments, credit journeys, etc.)
  • Expert-level Flutter & Dart: architecture patterns, state management at scale (Riverpod, Bloc, Provider, etc.), native plugins, performance profiling, widget optimization, CI/CD
  • Deep iOS & Android platform knowledge (native bridges, store policies, background processing, push, deep linking, etc.)
  • Strong secure mobile development: anti-tampering, secure storage, jailbreak/root detection, certificate pinning, secure API/auth practices
  • Design systems, accessibility, observability, crash reporting, analytics integration
  • Solid backend literacy (REST/gRPC, secure API design) – can partner effectively with backend teams
  • Ownership mindset.

Benefits

  • Health insurance
  • Professional development opportunities

Job title

Senior Staff Engineer – Mobile/Flutter

Job type

Experience level

Senior

Salary

Not specified

Degree requirement

Bachelor's Degree

Location requirements

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