Ion
Ion1mo ago

Senior React Native Engineer, Mexico City

MexicoMexico CityFull-timesenior
EngineeringFrontend EngineeringMobile Development
0 views0 saves0 applied
Apply Now

Quick Summary

Overview

About Lab49 Lab49 is an NYC-based award‑winning specialist consultancy that creates bespoke technology in partnership with the world's leading financial institutions.

Technical Tools
EngineeringFrontend EngineeringMobile Development
About Lab49
Lab49 is an NYC-based award‑winning specialist consultancy that creates bespoke technology in partnership with the world's leading financial institutions. Founded in 2002 to bring Silicon Valley engineering practices to Wall Street, we've delivered hundreds of high‑impact projects across global investment banks and buy‑side firms, spanning distributed systems, high‑performance automation, enterprise UX, cloud, and data‑driven platforms.
At Lab49, engineers work directly with clients to design and deliver production systems. We combine technology, design, and business to solve real problems where quality, performance, and clarity matter.
 
We are currently seeking a Senior React Native Engineer to design and build a new, greenfield mobile application for buy‑side investment management research workflows. The mobile app will integrate into an existing web‑based platform and will be built for iOS and Android from day one.
 
The Role
As a Senior React Native Engineer, you are an experienced, autonomous contributor who takes ownership of significant parts of a system and helps elevate the engineers around you.
This role sits at the intersection of hands‑on mobile engineering, architecture, and consulting. You will be the first mobile engineer on the initiative, responsible for defining the application foundations, establishing patterns, and making practical tooling decisions that enable long‑term success.
You will work directly with clients and collaborate closely with designers and backend engineers to ensure the mobile experience aligns cleanly with an existing platform, including shared design systems, domain models, and authentication.
This is a hybrid role, requiring 1 day per week at the office in central CDMX (Insurgentes Sur).
 
 
What You Will Be Doing
  • Start a new greenfield React Native application and drive it from early foundations through production release.
  • Own the design and implementation of major features and core application architecture.
  • Build high‑quality, scalable mobile experiences using React Native and modern JavaScript/TypeScript.
  • Define and evolve patterns for navigation, state management, data access, error handling, performance, and testing.
  • Integrate the mobile app into an existing platform by aligning with shared design systems, domain models, and authentication approaches.
  • Consume a production GraphQL API implemented in .NET, collaborating with backend partners to evolve the schema as mobile requirements become clearer.
  • Build data‑intensive views backed by paginated APIs, ensuring strong perceived performance and usability.
  • Ensure testing, quality, and maintainability are built into the system from the start.
  • Work autonomously while guiding less‑experienced engineers through mentoring, pairing, and code reviews as the team grows.
  • Lead small initiatives or workstreams and help ensure timely, high‑quality delivery.
  • Act as a role model for strong engineering judgment, ownership, and collaboration.
  • Partner directly with client counterparts to understand user and business objectives.
  • Collaborate closely with designers and partners on UX, wireframing, and high‑quality UI implementation.
  • Communicate technical ideas clearly to both technical and non‑technical stakeholders.
  • Contribute to building trust‑based client relationships as a reliable technical partner.
  • In your first 6–12 months, success means:
  • You establish a strong mobile foundation and ship a production‑quality iOS and Android application.
  • The mobile app integrates cleanly with the existing platform, aligning with shared design, domain, and authentication standards.
  • You independently own and deliver key mobile components or features end‑to‑end.
  • You proactively identify risks, trade‑offs, and improvement opportunities, addressing them early.
  • Clients trust your judgment and value your contributions.
  • Other engineers rely on you for guidance, clarity, and technical leadership as the mobile capability grows.
  • 6–8+ years of experience designing and building production software.
  • Strong commercial experience building production mobile applications with React Native.
  • Experience shipping and operating apps on both iOS and Android.
  • Strong proficiency in modern JavaScript and TypeScript.
  • Solid understanding of mobile application architecture, performance, and reliability.
  • Experience consuming GraphQL APIs in production and collaborating on schema evolution.
  • Solid understanding of SDLC practices, CI/CD, automated testing with tools such as Detox or Maestro, and code quality.
  • Excellent written and spoken English communication skills (C1+ is highly preferred)
  • Experience defining architecture and patterns for greenfield products.
  • Backend & cloud engineering exposure (.NET & Azure) to support cross‑team collaboration.
  • Experience with cloud platforms and data‑intensive systems.
  • Background in financial services, consulting, or similarly complex domains.

    • Listing Details

    Posted
    February 17, 2026
    First seen
    March 25, 2026
    Last seen
    April 11, 2026

    Posting Health

    Days active
    16
    Repost count
    0
    Trust Level
    41%
    Scored at
    April 11, 2026

    Signal breakdown

    freshnesssource trustcontent trustemployer trustcandidate experience
    Apply for this position ↗
    Ion
    Ion
    lever
    Employees
    5
    Founded
    2025
    Domain
    ionconsumables.com
    Jobs
    View 165 jobs
    View company profile

    4 other jobs at Ion

    View all →

    Explore open roles at Ion.

    Ion
    Senior Product UX Consultant, Mexico City
    Full-time    Ion
    Mobile Junior Developer
    Contractor    Ion
    Desktop and Security Administrator
    Full-time    Ion
    Senior Full Stack Developer (Angular + Java), Noida
    Full-time

    Similar Senior React Native Engineer, Mexico City jobs

    StripeStripe
    SDK Engineer (React/React Native), Privy
    PandadocPandadocRemote
    Mobile Team Lead (stack: React Native, React, JS, TS)
    Remote
    PandadocPandadocRemote
    Mobile Team Lead (stack: React Native, React, JS, TS)
    Remote
    PandadocPandadocRemote
    Mobile Team Lead (stack: React Native, React, JS, TS)
    Remote
    PandadocPandadocRemote
    Mobile Team Lead (stack: React Native, React, JS, TS)
    Remote
    PandadocPandadocRemote
    Senior Mobile Engineer (React Native)
    Remote
    Newsletter

    Stay ahead of the market

    Get the latest job openings, salary trends, and hiring insights delivered to your inbox every week.

    A
    B
    C
    D
    Join 12,000+ marketers

    No spam. Unsubscribe at any time.

    IonSenior React Native Engineer, Mexico City
    Apply Now
    Senior React Native Engineer, Mexico City | Ion | Mexico City