Software Engineer III (Mobile - React Native)

Csiweb; United States; Remote; USD 150,000 - 190,000; Full time

Benefits offered by this job

Incentive awards

Comprehensive benefits package

Job summary

Csiweb in the United States is seeking a senior mobile engineer to build and evolve cross‑platform React Native applications powering online banking on iOS and Android. This role blends hands‑on coding with architectural leadership, integrating mobile clients with backend services and third‑party platforms used by financial institutions.

You will set technical direction, mentor teammates, and deliver reliable, high‑performing features in a regulated environment, while partnering with product,

Qualifications

• 5+ years of professional software engineering delivering scalable mobile apps.
• 4-5 years of React Native and TypeScript with REST APIs and third-party integrations.
• Strong fundamentals: clean code, maintainable architecture, performance, testing, security, and documentation.
• Experience in regulated financial systems or banking environments.
• Bachelor's degree in software engineering or related field, or equivalent industry experience.
• Excellent cross-team communication in Agile environments.

Responsibilities

• Lead design, development, and rollout of large-scale mobile projects.
• Define mobile architecture, API contracts, and integration approaches.
• Establish and enforce engineering standards for React Native, TypeScript, performance, accessibility, and responsive design.
• Drive Agile and CI/CD practices across the mobile team while mentoring peers on mobile development patterns.
• Shape mobile UX, architecture, and integration strategy with product, design, and business stakeholders.
• Contribute to modernization efforts that update legacy mobile technologies and integration layers.

Skills

React Native

TypeScript

Architecture leadership

CI/CD

Cross-team collaboration

Education

Bachelor's degree in software engineering or related field

Tools

REST APIs

Backend services

Third-party integrations

Job description

Role overview

A senior mobile engineering position focused on building and evolving cross‑platform React Native applications that power online banking experiences on iOS and Android. The role blends hands‑on coding with architectural leadership, integrating mobile clients with backend services and third‑party platforms used by financial institutions. It suits an engineer who can set technical direction, mentor teammates, and ship reliable, high‑performing features in a regulated environment.

Responsibilities

• Lead the design, development, and rollout of large‑scale mobile projects and cross‑platform features integrated with backend systems.
• Define mobile architecture, API contracts, and integration approaches, assessing risks around performance, compatibility, and third‑party dependencies.
• Establish and enforce engineering standards for React Native, TypeScript, mobile performance, accessibility, and responsive design.
• Drive Agile and CI/CD practices across the mobile team while mentoring peers on scalable mobile development patterns.
• Shape mobile UX, architecture, and integration strategy in collaboration with product, design, and business stakeholders.
• Contribute to modernization efforts that update legacy mobile technologies and integration layers.

Requirements

• 5+ years of professional software engineering experience with a strong track record delivering scalable mobile applications.
• 4-5 years of hands‑on React Native and TypeScript experience, including work with REST APIs, backend services, and third‑party integrations.
• Solid engineering fundamentals across clean code, maintainable architecture, performance tuning, testing, reliability, security awareness, and documentation.
• Experience working in or alongside financial systems, banking platforms, core integrations, or other regulated technology environments.
• Bachelor's degree in software engineering or a related field, or equivalent industry experience.
• Strong communicator who collaborates effectively across engineering, product, design, QA, security, architecture, and business teams, and who can balance delivery, support, technical debt, and quality in an Agile setting.

Nice to have

• Background influencing mobile UX or architecture strategy in online banking or comparable consumer finance products.
• Familiarity with evolving parts of the TypeScript and React Native ecosystems and modern mobile tooling.

Benefits and work setup

• Eligibility for incentive awards tied to both individual and business performance is described, with pay influenced by skills, qualifications, experience, and location.
• A comprehensive benefits package is offered; candidates are encouraged to review the full benefits summary during the hiring process.
• Position is based in the United States; visa sponsorship is not available, and applicants must be authorized to work without future sponsorship needs.