Staff Software Engineer (Mobile)

At Kueski, we're dedicated to improving the financial lives of people in Mexico. Since 2012, we've been the leading buy now, pay later (BNPL) and online consumer credit platform in Latin America, known for our innovative financial services. Our flagship product, Kueski Pay, provides seamless payment solutions for both online and in-store transactions, establishing itself as the preferred option for nearly 30% of Mexico's top e-commerce merchants. Notably, we were the first to introduce BNPL on Amazon Mexico.

We're a tech company with a culture geared toward innovation, collaboration, and impact, fostering a strong, diverse, and inclusive workplace. Our commitment to excellence and ethical business practices has earned us multiple industry recognitions. In 2024, we were named one of the World’s Top FinTech Companies by CNBC and recognized as one of the most ethical companies in Mexico by AMITAI. Additionally, we were certified as a Best Place to Work for LGBTQ+ Equality by HRC Equidad MX 2025 and ranked among the Best Companies for Female Talent by EFY.

Kueski is seeking a Staff Mobile Engineer to shape the technical direction of our mobile platforms and elevate the standard of engineering excellence across teams. This role is ideal for an experienced individual contributor who thrives on solving complex technical challenges, influencing architecture at scale, and driving forward mobile innovation with a hands-on approach.

As a key technical leader, you will define the long-term architecture for our mobile products, champion clean and scalable code practices, and guide teams through high-impact technical decisions. You’ll collaborate closely with engineering, product, and design partners to ensure our mobile solutions are performant, reliable, and aligned with Kueski’s broader technology vision

Key Responsibilities

• Technical Strategy & Architecture

• Define and execute the long-term technical vision for mobile development, ensuring scalability, performance, and alignment with Kueski’s technology strategy.

• Lead architectural planning and guide mobile system design across teams, translating business goals into resilient technical solutions.

• Identify technical risks early and proactively develop mitigation strategies that preserve velocity and system integrity.

• Drive continuous improvement of mobile development practices, ensuring code quality, maintainability, and architectural coherence.

• Cross-Functional Collaboration

• Collaborate with Product, Design, Backend, and Data stakeholders to align mobile solutions with user needs and business priorities.

• Influence decision-making through data-driven analysis and strategic insight, advocating for scalable and sustainable approaches.

• Participate early in project planning and estimation, shaping scope and direction for complex mobile initiatives.

• Support alignment across engineering teams by contributing to broader architectural discussions and documentation.

• Software Delivery & Execution

• Ensure timely and high-quality mobile feature delivery by driving best practices in development, testing, and release.

• Lead and participate in code reviews, setting high standards for correctness, security, and scalability.

• Collaborate in incident triage and root cause analysis for mobile systems, driving long-term fixes and system resilience.

• Contribute to evolving internal tools, CI/CD pipelines, and operational excellence for mobile platforms.

• Mentorship & Technical Leadership

• Mentor engineers across the organization, raising the technical bar through pair programming, coaching, and design guidance.

• Support onboarding and skill development for engineers new to mobile or to the organization.

• Promote a culture of learning, technical ownership, and continuous feedback within and beyond the mobile team.

Position Requirements

• 10+ years of experience as a Software Engineer, with strong expertise in mobile development (iOS and/or Android).

• Proficient in simulators, test case definition, debugging, performance optimization, and improving reliability.

• Experience using API and service monitoring/troubleshooting tools.

• Skilled at setting up CI/CD pipelines for automated mobile deployments.

• Ability to design architectures and patterns, clearly communicating trade-offs and long-term benefits.

• Hands-on experience with A/B testing and progressive rollouts for mobile applications.

• Proven track record building reliable apps that perform well in limited-connectivity environments.

• Strong knowledge of persistence mechanisms for offline data storage.

• Expertise in performance tuning and scaling mobile applications.

• Deep understanding of modular application design principles.

• Experience publishing and maintaining apps on Google Play and the Apple App Store.

• Strong familiarity with mobile hardware features such as GPS, Camera, NFC, etc.

• Experience mentoring and positively influencing development teams.

• Advanced proficiency in English is required. Proficiency in Spanish is preferred but not mandatory.

• Experience with Flutter/Dart is highly desirable,

At Kueski we embrace diversity in all forms, systematically promote equity, and ensure everyone feels included with a sense of belonging. We are committed to the full inclusion of all qualified candidates. As part of this commitment, we will make efforts to ensure reasonable accommodations are made during the hiring process. If reasonable accommodation is needed, please let the Talent Acquisition team know.