Sr. Software Engineer - iOS (Swift) & Automation Testing

GSSTech Group

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Work arrangement
On-site
Occupation
Software & IT
Location
Bengaluru, KA, IN
Compensation
Not disclosed
Apply by
April 14, 2027

About this role

We are looking for an experiencediOS Software Engineerwith strong hands-on expertise inSwift and modern iOS development, along with experience inautomation testing, to build and maintain large-scale, modular iOS applications.

The ideal candidate will have experience designing scalable iOS architectures, developing high-quality applications foriPhone and iPad, optimizing application performance, and working with modern Apple technologies.

The role also requires hands-on experience withAI/LLM integration, includingLLM APIs, Model Context Protocol (MCP), token management, context handling, agentic workflows, multi-agent orchestration, and tool-use patternsin production environments.

Requirements

Key Responsibilities

  • Design, develop, and maintain large-scale, modular iOS applications usingSwift.
  • Build scalable, maintainable, testable, and high-performance solutions across multiple feature teams.
  • Develop advancedSwiftUIinterfaces 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 withLLM APIswithin production iOS applications.
  • Implement and work withMCP (Model Context Protocol) frameworksin production environments.
  • Work withtoken management, context handling, and agentic workflowswithin AI-powered applications.
  • Implementmulti-agent orchestration and tool-use patternswhere applicable.
  • Evaluate LLM trade-offs and design resilient error-handling mechanisms for AI-powered applications.
  • Diagnose and resolvememory, performance, concurrency, and application stability issuesusing Xcode Instruments and profiling tools.
  • Implement robustcrash monitoring and observabilitysolutions.
  • 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 iniOS application development using Swift.
  • Experience buildinglarge-scale and modular iOS applications.
  • Strong experience withSwiftUIand modern Apple development technologies.
  • Strong understanding of iOS application architecture and scalable architectural patterns.
  • Experience developing applications foriPhone and iPad.
  • Experience withautomation testingfor iOS applications.
  • Hands-on experience withLLM APIsand AI-powered application development.
  • Production experience withMCP (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 withXcode 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 in2–3 or moreof 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 usingInstruments
  • 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 ofLLM APIs
  • Production implementation ofMCP (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 maintainingiOS 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-scaledigital products or banking applications.
  • Experience inbanking, 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.
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