Senior Mobile Engineer & Architecture Lead

capitalone; Plano (TX); On-site; USD 179,000 - 205,000; Full time

Job summary

Capital One is seeking a Mobile Engineer 4 to drive high-impact mobile initiatives for 100M+ customers. You will partner with engineers, designers, and product managers to deliver fast, scalable features on iOS and Android, mentor peers, and shape platform best practices.

You will own mobile architecture decisions, contribute to BFFs and SDUI strategies, and champion testing, performance, accessibility, and AI-assisted workflows.

Qualifications

• Bachelor's Degree or higher in Computer Science or a related quantitative field.
• At least 4 years of professional software engineering experience.
• At least 3 years of experience building native mobile applications for Android (Kotlin) or iOS (Swift).

Responsibilities

• Partner with software engineers, designers, and product managers to deliver high-performing, quality features for 100M+ customers.
• Provide technical leadership for mobile architecture and design patterns.
• Mentor other engineers, providing feedback and code reviews while removing technical obstacles.
• Grow and provide subject matter expertise in key platform areas (performance, accessibility, architecture).
• Contribute to mobile architecture decisions, API design reviews, and reusable component development.
• Lead the design and development of client Backend-for-Frontends (BFFs) and Server-Driven UI (SDUI).
• Lead the implementation and refinement of engineering practices, including feature flags and staged rollouts.
• Champion agentic AI tools and AI-native development practices to increase velocity.
• Apply mastery of the modern mobile ecosystem and advanced UI patterns in hands-on contributions.
• Drive a culture of quality, performance, accessibility, and customer empathy.

Skills

Native mobile development

Mobile architecture patterns

Mentoring engineers

Performance tuning

Mobile testing frameworks

GraphQL / gRPC / Protobuf

SDUI architectures

Feature flags & rollouts

AI coding tools

On-device ML

Education

Bachelor's Degree or higher in Computer Science or related field

Tools

SwiftUI

Jetpack Compose

XCUI

JUnit

Espresso

GraphQL

gRPC/Protobuf

CoreML

TensorFlow Lite

Job description

Capital One is seeking a Mobile Engineer 4 to drive high-impact mobile initiatives for 100M+ customers. You will partner with engineers, designers, and product managers to deliver fast, scalable features on iOS and Android, mentor peers, and shape platform best practices.

You will own mobile architecture decisions, contribute to BFFs and SDUI strategies, and champion testing, performance, accessibility, and AI-assisted workflows.