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Hi! I'm Mondale Felix, a Senior iOS Engineer with over 5 years of experience building scalable and resilient mobile applications. I specialize in designing robust data models, optimizing interactions with backend services, and setting up CI/CD pipelines, using Swift and modern Apple technologies to build clean and performant user interfaces. I enjoy mentoring junior developers and collaborating with design and backend teams to create seamless, high-quality apps in enterprise and healthcare environments. I'm passionate about clean code, efficient data flow, and delivering a great user experience from front to back.…Hi! I'm Mondale Felix, a Senior iOS Engineer with over 5 years of experience building scalable and resilient mobile applications. I specialize in designing robust data models, optimizing interactions with backend services, and setting up CI/CD pipelines, using Swift and modern Apple technologies to build clean and performant user interfaces. I enjoy mentoring junior developers and collaborating with design and backend teams to create seamless, high-quality apps in enterprise and healthcare environments. I'm passionate about clean code, efficient data flow, and delivering a great user experience from front to back.

Mondale Felix

App Developer, Developer, Programmer, +1

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Hi! I'm Mondale Felix, a Senior iOS Engineer with over 5 years of experience building scalable and resilient mobile applications. I specialize in designing robust data models, optimizing interactions with backend services, and setting up CI/CD pipelines, using Swift and modern Apple technologies to build clean and performant user interfaces. I enjoy mentoring junior developers and collaborating with design and backend teams to create seamless, high-quality apps in enterprise and healthcare environments. I'm passionate about clean code, efficient data flow, and delivering a great user experience from front to back.…Hi! I'm Mondale Felix, a Senior iOS Engineer with over 5 years of experience building scalable and resilient mobile applications. I specialize in designing robust data models, optimizing interactions with backend services, and setting up CI/CD pipelines, using Swift and modern Apple technologies to build clean and performant user interfaces. I enjoy mentoring junior developers and collaborating with design and backend teams to create seamless, high-quality apps in enterprise and healthcare environments. I'm passionate about clean code, efficient data flow, and delivering a great user experience from front to back.

Available to hire

Hi! I’m Mondale Felix, a Senior iOS Engineer with over 5 years of experience building scalable and resilient mobile applications. I specialize in designing robust data models, optimizing interactions with backend services, and setting up CI/CD pipelines, using Swift and modern Apple technologies to build clean and performant user interfaces.

I enjoy mentoring junior developers and collaborating with design and backend teams to create seamless, high-quality apps in enterprise and healthcare environments. I’m passionate about clean code, efficient data flow, and delivering a great user experience from front to back.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Intermediate

Work Experience

Software Engineer at FISGlobal

December 1, 2023 - Present

Architected scalable, enterprise-level iOS applications, designing the backend data models and API contracts that supported a 30% reduction in development time. Established CI/CD pipelines with Jenkins and GitHub Actions, implementing XCUITest automation to achieve 85% test coverage for backend interactions. Optimized app performance by 40% by refactoring network calls with URLSession and implementing efficient caching mechanisms for financial data. Integrated RESTful APIs using the Combine framework to ensure reactive and resilient data flow between the app and AWS backend services. Mentored junior developers on backend best practices through rigorous code reviews and established team coding standards for a maintainable codebase. Collaborated with the design team to implement performant UI components in SwiftUI that efficiently render complex data from backend services.

Software Engineer at Pfizer

November 30, 2023 - July 9, 2025

Engineered the data persistence layer and API integration for a mission-critical healthcare application, ensuring secure and compliant data handling. Created an automated testing framework with XCTest that reduced the QA cycle for backend-related bugs by 40%. Designed and implemented the backend logic for medical data visualization tools, processing and preparing complex datasets for rendering in the UI. Implemented secure offline storage solutions using Core Data and Keychain, compliant with rigorous healthcare data protection standards. Built modern SwiftUI screens that interfaced with complex backend systems, following MVVM architecture with a focus on accessibility.

iOS Instructor at Dominican University of California

March 31, 2022 - July 9, 2025

Designed and taught a comprehensive 7-week iOS development course, covering Swift fundamentals, data persistence, API integration, and app deployment. Mentored 50+ students with personalized guidance, resulting in a 100% course completion rate.

Software Engineer at Major League Hacking Fellowship

December 31, 2020 - July 9, 2025

Developed user-centric features for mobile applications, focusing on efficient data handling and API consumption. Collaborated with international teams across different time zones, delivering theme-based applications on schedule using Agile methodologies.

Jr. iOS Developer at HCLTech

January 31, 2019 - July 9, 2025

Developed and maintained native iOS applications using Swift, focusing on efficient data handling and performance. Integrated backend APIs, working closely with server-side teams to ensure robust and reliable data flow within the application. Participated in the full app lifecycle, with a focus on testing backend integrations and managing the App Store deployment process.

iOS Developer Intern at HCLTech

August 31, 2017 - July 9, 2025

Assisted in developing and testing iOS applications using Swift, with a focus on API integration and debugging data-related issues under senior guidance.

Software Engineer at FISGlobal

December 1, 2023 - Present

Architected scalable, enterprise-level iOS applications, designing backend data models and API contracts that supported a 30% reduction in development time. Established CI/CD pipelines with Jenkins and GitHub Actions, implementing XCUITest automation to achieve 85% test coverage for backend interactions. Optimized app performance by 40% through network call refactoring and efficient caching mechanisms. Integrated RESTful APIs using the Combine framework for reactive data flow with AWS backend services. Mentored junior developers on backend best practices via code reviews and set team coding standards. Collaborated with design to implement performant SwiftUI UI components rendering complex backend data.

Software Engineer at Pfizer

November 30, 2023 - July 9, 2025

Engineered data persistence layer and API integration for a mission-critical healthcare application ensuring secure and compliant data handling. Created an automated testing framework with XCTest reducing QA cycle for backend-related bugs by 40%. Designed backend logic for medical data visualization tools to process complex datasets for UI rendering. Implemented secure offline storage using Core Data and Keychain compliant with healthcare data protection standards. Built modern SwiftUI screens interfacing with backend systems following MVVM architecture emphasizing accessibility.

iOS Instructor at Dominican University of California

March 31, 2022 - July 9, 2025

Designed and taught a comprehensive 7-week iOS development course covering Swift fundamentals, data persistence, API integration, and app deployment. Mentored over 50 students with personalized guidance achieving a 100% course completion rate.

Software Engineer at Major League Hacking Fellowship

December 31, 2020 - July 9, 2025

Developed user-centric mobile application features focusing on efficient data handling and API consumption. Collaborated with international teams across time zones delivering theme-based applications on schedule using Agile methodologies.

Jr. iOS Developer at HCLTech

January 31, 2019 - July 9, 2025

Developed and maintained native iOS applications using Swift with a focus on efficient data handling and performance. Integrated backend APIs, working closely with server-side teams to ensure robust data flow. Participated in full app lifecycle focusing on backend integration testing and App Store deployment.

iOS Developer Intern at HCLTech

August 31, 2017 - July 9, 2025

Assisted in developing and testing iOS applications using Swift focusing on API integration and debugging data-related issues under senior developer guidance.