Senior iOS Engineer: Lead Architecture for 100M+ Users

Capital One; McLean (VA); On-site; USD 197,000 - 225,000; Full time

Benefits offered by this job

MacBook Pro laptops

Health benefits

Job summary

Capital One is seeking an iOS Mobile Engineer 4 in McLean, VA to drive high-impact mobile features for 100M+ users. You'll mentor peers, shape architecture, and collaborate with design and product teams to deliver robust native experiences across iOS platforms.

You will accelerate performance tuning, testing, and accessibility while exploring Server-Driven UI and GraphQL-based data flows. This role emphasizes quality, velocity, and customer-centric mobile solutions.

Qualifications

• Bachelor's Degree or higher in Computer Science or a related quantitative field (Statistics, Economics, Operations Research, Analytics, Mathematics, Engineering)
• 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 engineers, designers, and PMs to deliver high-performing features for 100M+ customers
• Provide technical leadership for mobile architecture and design patterns
• Mentor engineers and review code to share best practices
• Grow subject matter expertise in performance, accessibility, and architecture
• Contribute to mobile architecture decisions and API design reviews
• Lead design and development of client BFFs and SDUI architectures
• Champion feature flags and staged rollouts to improve delivery quality
• Advance agentic AI tooling adoption to boost team velocity
• Apply modern mobile ecosystem mastery to deliver high-leverage contributions
• Drive a culture of quality and customer empathy in coding and UX

Skills

iOS Swift

SwiftUI

Architecture patterns

Code reviews

AI tooling

Performance tuning

Testing frameworks

Education

Bachelor's Degree in CS or related

Tools

GraphQL

gRPC/Protobuf

CoreML

TensorFlow Lite

Job description

Capital One is seeking an iOS Mobile Engineer 4 in McLean, VA to drive high-impact mobile features for 100M+ users. You'll mentor peers, shape architecture, and collaborate with design and product teams to deliver robust native experiences across iOS platforms.

You will accelerate performance tuning, testing, and accessibility while exploring Server-Driven UI and GraphQL-based data flows. This role emphasizes quality, velocity, and customer-centric mobile solutions.