Senior Mobile Engineer

The Vanguard Group; Malvern (Chester County); Hybrid; USD 150,000 - 190,000; Full time

Job summary

The Vanguard Group in Malvern, PA seeks a senior React Native engineer to design, develop, and maintain high‑performance, scalable mobile features for cross‑platform experiences. You will partner with product, design, and platform teams to deliver intuitive, high‑quality mobile experiences.

Collaborating with engineers across the organization, you will drive performance improvements, ensure robust testability, and guide code through development, test, and production environments.

Qualifications

• Eight+ years overall software/engineering experience.
• At least two years in software development.
• Experience with cross‑platform React Native.
• Experience building cloud-native apps using AWS and serverless tech.
• Experience embedding iOS capabilities and Apple frameworks in RN apps.
• Advanced knowledge of JavaScript and TypeScript.
• Strong understanding of design patterns and data modeling.

Responsibilities

• Design, develop, and maintain high-performance, scalable mobile features.
• Partner with product managers, designers, engineers, and platform teams to deliver intuitive experiences.
• Continuously improve application performance, responsiveness, reliability, and maintainability.
• Translate stories into design and code.
• Develop well-engineered code and test artifacts backed by automated tests.
• Elevate code into development, test, and production environments on schedule.
• Provide follow-up production support and change control documentation.
• Mentor staff with less experience and communicate complex issues clearly.

Skills

React Native

JavaScript

TypeScript

AWS

Serverless architecture

Cross‑platform development

Design patterns

Education

Bachelor's degree or higher

Graduate degree preferred

Tools

Expo

GitHub Actions

Fastlane

iOS Frameworks

GitHub

Honeycomb

Splunk

Job description

What You’ll Do

Design, develop, and maintain high-performance, scalable mobile application features.

Partner with product managers, designers, engineers, and platform teams to deliver intuitive, high-quality mobile experiences.

Continuously improve application performance, responsiveness, reliability, and maintainability.

Translate stories into design & code.

Develop well-engineered code and test artifacts backed by automated tests.

Elevate code into the development, test, and production environments on schedule.

Provide follow-up production support.

Submit change control requests and documents.

Provide subject matter expertise in software development methodology and development architecture standards.

Mentor staff with less experience.

Effectively communicate technical issues in a manner all can understand.

Research and employ contemporary software development techniques to ensure quality and improve velocity of the team.

Understand and comply with Information Technology and Information Security policies and procedures; verify that deliverables meet requirements.

Required Qualifications

Minimum of eight years related work experience, with at least two years of software development experience.

Undergraduate degree or equivalent combination of training and experience; graduate degree preferred.

Experience designing and developing cross-platform applications with React Native.

Experience building cloud-native applications and services using AWS and serverless technologies.

Experience integrating native iOS capabilities, Apple frameworks, and third-party SDKs within React Native applications.

Advanced knowledge of JavaScript and TypeScript.

Experience building maintainable, type-safe codebases.

Ability to learn new technologies quickly and demonstrate a hands-on understanding.

Strong understanding of design patterns, integration patterns/practice, data modeling principles and best practices.

A good track record of project delivery for large cross-team projects.

Strong communication skills and the ability to connect with engineers, managers, PMs, customers.

Experience with Mobile/Web development frameworks, and micro-service architecture.

Preferred Skills

Demonstrated experience with software engineering fundamentals including object-oriented design, data structures, dependency injection, testable code, and algorithms.

Experience with Expo and modern React Native development practices.

CI/CD Pipeline (GitHub Actions / Fastlane).

Git (GitHub).

Honeycomb.

Splunk.

Special Factors Sponsorship

Vanguard is not offering visa sponsorship for this position.

About Vanguard

At Vanguard, we don't just have a mission - we’re on a mission. To work for the long-term financial wellbeing of our clients. To lead through product and services that transform our clients' lives. To learn and develop our skills as individuals and as a team. From Malvern to Melbourne, our mission drives us forward and inspires us to be our best.

How We Work

Vanguard has implemented a hybrid working model for the majority of our crew members, designed to capture the benefits of enhanced flexibility while enabling in-person learning, collaboration, and connection.

We believe our mission-driven and highly collaborative culture is a critical enabler to support long-term client outcomes and enrich the employee experience.

Vanguard, one of the world's leading investment management companies, serves individual investors, institutions, employer-sponsored retirement plans, and financial professionals.

We have a diverse and talented crew with a culture that promotes teamwork, along with an unwavering focus on serving our clients' best interests.

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