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CSI

Software Engineer III – Mobile, React Native

CSI

. Design, code, test, and debug scalable mobile applications using React Native and TypeScript .

Posted 9/3/2026full-timeRemote • United StatesMid-LevelSeniorWebsite

Core Competencies

Role fit
Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in designing and developing scalable mobile applications using React Native and TypeScript, with a strong focus on performance, usability, and integration within the online banking domain. Proven ability to mentor engineers and promote best practices in Agile environments while managing complex mobile projects.

Highest-signal resume keywords
React Native DevelopmentTypeScript ProficiencyMobile Application ArchitectureAPI Integration ExperienceAgile Methodologies

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills
Mobile Application DevelopmentReact NativeTypeScriptAPI IntegrationPerformance OptimizationTesting and DebuggingResponsive DesignClean Code PracticesDocumentationSecurity Awareness
Soft Skills
CollaborationMentoringTime ManagementProblem SolvingCross-Functional Team Support
Tools & Technologies
CI/CDAgile ToolsMobile Development FrameworksBackend Services
Certifications & Qualifications
College Degree in Software Engineering
Industry Keywords
Financial SystemsBanking PlatformsRegulated TechnologyCore Integrations

Tech Stack

Tools & technologies
AndroidiOSReactReact NativeTypeScript

About the role

Key responsibilities & impact
  • Design, code, test, and debug scalable mobile applications using React Native and TypeScript
  • Maintain and document program changes with focus on performance, usability, and reliability across iOS and Android
  • Own development and rollout of large mobile projects and cross-platform solutions integrated with backend systems
  • Enforce best practices in React Native, TypeScript, mobile performance, and responsive design
  • Deliver high-quality mobile features efficiently and on time
  • Define mobile architecture, APIs, and integration risks
  • Promote Agile, CI/CD, and mobile best practices
  • Mentor and guide engineers in scalable mobile development
  • Apply modern mobile technologies and the evolving TypeScript ecosystem
  • Drive mobile UX, architecture, and integration strategy in the online banking domain
  • Support team effectiveness and cross-functional initiatives

Requirements

What you’ll need
  • 5+ years of professional software engineering experience
  • 4–5 years of hands-on React Native and TypeScript experience
  • Experience with API, backend service, and third-party system integrations
  • Experience with financial systems, banking platforms, core integrations, or regulated technology environments preferred
  • College degree in software engineering or related field, or equivalent industry experience required
  • Strong engineering fundamentals, including clean code, maintainable architecture, performance, testing, reliability, security awareness, and documentation
  • Ability to collaborate across engineering, product, design, QA, security, architecture, and business teams
  • Ability to manage competing priorities in an Agile environment
  • Applicants must be authorized to work in the United States without the need for sponsorship now or in the future

Benefits

Comp & perks
  • Eligibility for incentive awards based on both individual and business performance
  • Competitive salary
  • Comprehensive range of benefits