Principal Software Engineer, Mobile Platform

FIS Management Services LLC; Jacksonville (FL); On-site; USD 150,000 - 210,000; Full time

Benefits offered by this job

Competitive salary

Professional learning

Inclusive environment

Community involvement

Job summary

FIS is seeking a Principal Engineer to define the architecture and technical direction for a unified mobile platform used by product teams. You will lead engineering across iOS, Android and React Native, establishing reusable capabilities and standards to deliver secure, scalable mobile experiences.

You will shape platform strategy, guide secure development, and drive CI/CD adoption with Bitrise. You will mentor senior engineers and collaborate with product, design, security and operations to

Qualifications

• Extensive experience architecting production-grade mobile apps.
• Advanced expertise in at least one native platform (Swift or Kotlin) with working depth in the other.
• React Native experience.
• Proven leadership across mobile architecture, platform strategy and standards.
• Experience implementing mobile CI/CD pipelines (Bitrise).
• Deep knowledge of mobile security, accessibility, performance, testing, observability and release management.

Responsibilities

• Define architecture and strategy for enterprise mobile platforms.
• Lead evaluation of framework strategy, native vs cross-platform.
• Establish standards for iOS, Android and React Native development.
• Design reusable frameworks, libraries, services and tooling.
• Guide architecture using Swift, Kotlin and React Native patterns.
• Lead security, privacy, scalability, accessibility and performance decisions.
• Establish CI/CD with Bitrise and automation tools.
• Improve automated testing, quality, observability and releases.
• Manage signing, provisioning and store releases.
• Partner with product/design/security to deliver consistent experiences.
• Collaborate on design system mobile components.
• Explore AI-assisted capabilities to improve workflows.
• Resolve complex architecture, integration, performance and reliability issues.
• Coach senior engineers and strengthen practices.

Skills

Mobile architecture

Leadership

React Native

Swift

Kotlin

AI coding tools

CI/CD (Bitrise)

Security & compliance

Testing & observability

API integration

Education

Bachelor's degree in Computer Science or related field

Tools

Bitrise

Apple App Attest

Google Play Integrity

REST APIs

Job description

About the Role

You will define the architecture and technical direction for a mobile platform that product teams across FIS build on, supporting secure, scalable financial applications. You will lead engineering across native iOS, native Android and React Native technologies while establishing reusable capabilities, standards and delivery practices. As a principal engineer, you will solve complex platform challenges and influence mobile strategy across engineering, product, security and operations. Success means enabling teams to deliver reliable, accessible and high-performing mobile experiences efficiently.

What You Will Be Doing

• Define the architecture and technical strategy for enterprise mobile platforms and applications.
• Lead the evaluation of FIS’s mobile framework strategy, native vs. cross-platform, as AI-assisted development changes the tradeoffs.
• Establish standards for native iOS, native Android and React Native development.
• Design reusable frameworks, libraries, services and developer tooling for mobile engineering teams.
• Guide application architecture using Swift, Kotlin and modern React Native patterns.
• Lead decisions involving security, privacy, scalability, accessibility and application performance.
• Establish continuous integration and delivery capabilities using Bitrise and complementary automation tools.
• Improve automated testing, code quality, observability and release reliability across mobile applications.
• Guide application signing, provisioning and releases through Apple and Google application stores.
• Partner with product, design, security and platform teams to deliver consistent mobile experiences.
• Partner with Design to deliver the design system’s mobile components and tokens.
• Evaluate AI-assisted capabilities that improve mobile development, testing and operational workflows.
• Lead resolution of complex architecture, integration, performance and production reliability challenges.
• Coach senior engineers and technical leads while strengthening mobile engineering practices.

What You Will Need

• Extensive experience architecting and delivering complex, production-grade mobile applications.
• Advanced expertise in at least one native platform (Swift or Kotlin), with working depth in the other.
• React Native experience.
• Proven engineering leadership across mobile architecture, platform strategy and technical standards.
• Experience implementing mobile continuous integration and delivery pipelines, including Bitrise.
• Deep knowledge of mobile security, accessibility, performance, testing, observability and release management.
• Hands-on experience with AI coding tools and a point of view on how they change mobile engineering.
• Degree in Computer Science, engineering or a related field, or equivalent practical experience.
• Added Bonus if You Have Experience developing mobile platforms or applications within banking, payments or financial services.
• Experience releasing and maintaining applications through the Apple App Store and Google Play.
• Knowledge of iPadOS, macOS and the broader Apple development ecosystem.
• Experience integrating mobile applications with APIs, identity platforms and cloud-based services.
• Familiarity with secure software development practices for regulated financial environments.
• Experience with mobile app integrity and attestation (Apple App Attest, Google Play Integrity) and secure secrets handling.

What We Offer

You At FIS, you can grow your career as far as you want to take it.

• Opportunities to make an impact in fintech
• Personal and professional learning
• Inclusive, diverse work environment
• Resources to give back to your community
• Competitive salary and benefits
• Privacy Statement FIS is committed to protecting the privacy and security of all personal information that we process in order to provide services to our clients. For specific information on how FIS protects personal information online, please see the Online Privacy Notice.

EEOC Statement

FIS is an equal opportunity employer. We evaluate qualified applicants without regard to race, color, religion, sex, sexual orientation, gender identity, marital status, genetic information, national origin, disability, veteran status, and other protected characteristics. The EEO is the Law poster is available here supplement document available here

For positions located in the US, the following conditions apply. If you are made a conditional offer of employment, you will be required to undergo a drug test. ADA Disclaimer: In developing this job description care was taken to include all competencies needed to successfully perform in this position. However, for Americans with Disabilities Act (ADA) purposes, the essential functions of the job may or may not have been described for purposes of ADA reasonable accommodation. All reasonable accommodation requests will be reviewed and evaluated on a case-by-case basis.

Sourcing Model Recruitment at FIS works primarily on a direct sourcing model; a relatively small portion of our hiring is through recruitment agencies. FIS does not accept resumes from recruitment agencies which are not on the preferred supplier list and is not responsible for any related fees for resumes submitted to job postings, our employees, or any other part of our company.

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