Job Description

Principal iOS Engineer

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? Location: Gurgaon

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? Work Mode: Hybrid

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? Experience: 11–14 Years

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? Position: Principal iOS Engineer

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About the Role

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We are looking for a Principal iOS Engineer with 11–14 years of strong iOS engineering experience to join our engineering team in Gurgaon.

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This role is ideal for a hands-on technical leader who is not just an architect on paper, but someone who continues to design, build, review, optimize, and scale production-grade mobile applications.

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You will play a key role in defining the technical direction of large-scale consumer-facing mobile products while remaining deeply involved in engineering and coding.

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Key Responsibilities

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- Design and develop high-quality, scalable iOS applications using Swift.
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- Provide technical leadership across architecture, system design, development, and engineering practices.
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- Continue to be hands-on with production-quality code and contribute to critical engineering initiatives.
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- Design scalable and maintainable iOS architectures for large-scale consumer applications.
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- Drive application modularization and establish clean architectural patterns.
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- Analyze and solve complex problems involving scalability, reliability, concurrency, and performance.
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- Design systems capable of supporting high traffic and large user bases.
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- Work closely with Product, Design, Backend, QA, DevOps, and other engineering teams.
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- Conduct architecture and code reviews and establish engineering best practices.
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- Identify technical risks and drive initiatives to improve application stability, performance, and reliability.
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- Mentor senior engineers and help build a robust engineering culture.
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- Participate in technical decision-making and define long-term engineering roadmaps.
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- Troubleshoot complex production issues and drive them to resolution.
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- Promote clean code, automated testing, CI/CD, observability, and engineering excellence.
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Required Skills & Experience

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- 11–14 years of professional iOS engineering experience.
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- Deep expertise in Swift and iOS development.
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- Strong hands-on programming and software engineering capabilities.
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- Extensive experience building consumer-facing mobile applications at scale.
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- Strong understanding of:
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- iOS Architecture
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- System Design
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- Design Patterns
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- Modularization
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- SOLID principles
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- Clean Architecture
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- Concurrency
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- Multithreading
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- Memory Management
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- Performance Optimization
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- Strong understanding of distributed systems and scalability concepts.
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- Experience designing systems for high availability, reliability, and fault tolerance.
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- Strong knowledge of iOS frameworks, SDKs, APIs, networking, persistence, and application lifecycle.
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- Experience working with REST APIs and backend services.
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- Robust understanding of mobile application security and performance.
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- Experience with Git and modern software development practices.
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- Strong debugging and problem-solving skills.
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- Experience leading technical initiatives across multiple engineering teams.
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Good to Have

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- Experience with SwiftUI and UIKit.
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- Experience with Combine / async-await.
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- Experience with dependency injection and modular application architecture.
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- Experience building highly scalable mobile platforms.
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- Experience with CI/CD and mobile release automation.
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- Experience with monitoring, logging, crash analytics, and observability.
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- Experience working in Agile/Scrum environments.
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- Experience mentoring senior/principal engineers.
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What We’re Looking For

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We are specifically looking for someone who:

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✔ Is a strong hands-on iOS engineer

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✔ Can architect systems but also write production code

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✔ Has experience scaling consumer-facing applications

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✔ Can solve complex engineering and system-design problems

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✔ Can provide technical leadership without moving completely away from coding

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✔ Has a strong focus on performance, reliability, scalability, and engineering quality

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Interview Focus Areas

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Candidates can expect discussions around:

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- Swift & iOS Development
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- iOS Architecture
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- System Design
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- Distributed Systems
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- Scalability & Reliability
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- Concurrency & Multithreading
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- Performance Optimization
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- Mobile System Design
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- Coding & Problem Solving
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- Architecture & Design Patterns
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- Large-Scale Consumer Applications
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- Technical Leadership
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Apply

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If you are a Principal/Senior iOS Engineer who enjoys solving complex technical problems while remaining hands-on with engineering, we'd love to hear from you.

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? Interested candidates can share their updated CV with the hiring team.

📌 Principal IOS Engineer (Gurugram)
🏢 Questhiring
📍 Gurugram