# Sr. Software Engineer - iOS (Swift) & Automation Testing > GSSTech Group · Bengaluru, India · — · Posted 2026-09-24 **Workplace:** on_site ## Description We are looking for an experienced **iOS Software Engineer** with strong hands-on expertise in **Swift and modern iOS development**, along with experience in **automation testing**, to build and maintain large-scale, modular iOS applications. The ideal candidate will have experience designing scalable iOS architectures, developing high-quality applications for **iPhone and iPad**, optimizing application performance, and working with modern Apple technologies. The role also requires hands-on experience with **AI/LLM integration**, including **LLM APIs, Model Context Protocol (MCP), token management, context handling, agentic workflows, multi-agent orchestration, and tool-use patterns** in production environments. ## Requirements ### Key Responsibilities - Design, develop, and maintain large-scale, modular iOS applications using **Swift**. - Build scalable, maintainable, testable, and high-performance solutions across multiple feature teams. - Develop advanced **SwiftUI** interfaces with a strong focus on responsiveness, usability, and accessibility. - Design and implement scalable application architectures and modern architectural patterns. - Develop and maintain automated testing solutions to ensure application quality and reliability. - Integrate and work with **LLM APIs** within production iOS applications. - Implement and work with **MCP (Model Context Protocol) frameworks** in production environments. - Work with **token management, context handling, and agentic workflows** within AI-powered applications. - Implement **multi-agent orchestration and tool-use patterns** where applicable. - Evaluate LLM trade-offs and design resilient error-handling mechanisms for AI-powered applications. - Diagnose and resolve **memory, performance, concurrency, and application stability issues** using Xcode Instruments and profiling tools. - Implement robust **crash monitoring and observability** solutions. - Analyze crash trends and production issues and drive improvements in application stability. - Optimize application startup performance, memory usage, responsiveness, and overall runtime performance. - Apply modern dependency management approaches to maintain scalable and modular application architecture. - Collaborate with multiple feature teams to establish consistent engineering and architectural practices. - Participate in code reviews, technical discussions, debugging, testing, and continuous improvement initiatives. - Troubleshoot complex production issues and ensure reliable application delivery. ### Core Technical Requirements - Strong hands-on experience in **iOS application development using Swift**. - Experience building **large-scale and modular iOS applications**. - Strong experience with **SwiftUI** and modern Apple development technologies. - Strong understanding of iOS application architecture and scalable architectural patterns. - Experience developing applications for **iPhone and iPad**. - Experience with **automation testing** for iOS applications. - Hands-on experience with **LLM APIs** and AI-powered application development. - Production experience with **MCP (Model Context Protocol) frameworks**. - Understanding of: - Token management - Context handling - Agentic workflows - Multi-agent orchestration - Tool-use patterns - LLM trade-offs - Resilient error handling for AI applications - Strong experience with **Xcode Instruments and profiling tools**. - Experience diagnosing and resolving: - Memory leaks - Memory issues - Performance bottlenecks - Concurrency issues - Application crashes - Experience with crash monitoring, observability, and production diagnostics. - Experience with modern dependency management. ### Specialized Expertise Candidates should have strong hands-on specialization in **2–3 or more** of the following areas: **1\. Swift Concurrency** - async/await - Actors - Task Groups **2\. SwiftUI & Combine** - Advanced SwiftUI development - Combine framework - Responsive and reactive UI development **3\. Core Data / SwiftData** - Data persistence - Core Data or SwiftData implementation **4\. Networking** - URLSession - gRPC - Protocol Buffers **5\. Background Processing** - BackgroundTasks framework - Background execution and task management ### Performance, Stability & Observability The candidate should have practical production experience with: - Memory leak detection and troubleshooting using **Instruments** - CPU and memory profiling - Performance analysis and optimization - Application startup optimization - Concurrency issue diagnosis - Crash monitoring and analysis - Crash trend analysis - Production debugging - Application observability and stability improvements ### AI / LLM Requirements Strong practical experience with AI integration is required, including: - Integration of **LLM APIs** - Production implementation of **MCP (Model Context Protocol)** - Token and context management - Agentic application workflows - Multi-agent orchestration - Tool-use patterns - Evaluation of LLM model trade-offs - Error handling and resilience in AI-powered applications ### Automation & Quality - Experience building or maintaining **iOS automation testing frameworks/scripts**. - Strong understanding of software testing and quality engineering practices. - Experience integrating testing into development and CI/CD workflows. - Ability to write maintainable and reliable automated tests. - Experience identifying, reproducing, debugging, and resolving application defects. ### Required Competencies - Strong problem-solving and debugging skills. - Strong understanding of software engineering best practices. - Ability to work on complex production applications. - Strong ownership of application quality, performance, and reliability. - Ability to collaborate effectively across multiple feature teams. - Strong communication and teamwork skills. - Ability to learn and adapt to modern iOS and AI technologies. - Comfortable working in a fast-paced Agile engineering environment. ### Preferred Experience - Experience working on large-scale **digital products or banking applications**. - Experience in **banking, financial services, or digital payments**. - Experience working with enterprise-scale mobile applications. - Experience integrating AI/LLM capabilities into production applications. - Experience working with modern CI/CD and engineering automation practices. ## Apply [Apply at GSSTech Group](https://apply.workable.com/gsstech-group/j/63A57C5857/apply) --- Powered by [Workable](https://www.workable.com)