Anderson Gralha
Senior iOS Engineer | Mobile Architecture | Performance Optimization | Scalable Mobile Apps
Summary
Senior/Lead iOS Engineer with 10+ years of experience building and scaling mobile applications used by hundreds of thousands of users. I focus on architecture, performance, and developer productivity, with a track record of improving stability and enabling reliable monetization systems.
Core skills
Swift, SwiftUI, UIKit, Objective-C, iOS 17+, MVVM, MVC, Coordinator Pattern, Dependency Injection, Modular Architecture, REST APIs, GraphQL, Apollo iOS, Firebase, Sentry, New Relic, PostHog, Analytics, Monitoring, Crash/Performance Optimization, XCTest, Unit Testing, UI Testing, In-App Purchases, CI/CD, Fastlane, Bitrise, Swift Package Manager (SPM), CocoaPods, GitFlow, Developer Productivity, Technical Leadership, AI-Assisted / Agentic Coding Workflows.
Work history
Senior iOS Engineer @ Company 1
- Core contributor to a high-scale iOS platform serving 1M+ users, delivering 20+ initiatives across product, monetization, and platform work as part of a team of 15 engineers.
- Led end-to-end development of key iOS features from product definition to production, aligning stakeholders, designers, and engineering leadership while improving UX consistency through Apple platform guidelines.
- Designed and launched an in-app messaging system across core content features, enabling user-to-user communication with support for sending, receiving, and editing 100,000+ messages.
- Led a full API migration across 100+ calls from legacy REST and GraphQL implementations to a new schema, using agentic coding, custom skills, and parallel worktrees to accelerate delivery and complete a successful rollout within one month.
- Improved app stability from 98% to 99.9% crash-free sessions by identifying systemic issues and strengthening observability with Sentry, PostHog, and Firebase.
- Led design and implementation of a new in-app purchase system, improving monetization reliability and enabling end-to-end testing workflows.
- Rebuilt a core product flow end-to-end under a highly constrained timeline, delivering a production-ready experience on schedule.
- Served as the go-to iOS technical leader for senior leadership, mentoring engineers, guiding architecture decisions, supporting hiring across engineering and management roles, and improving engineering velocity through CI/CD optimizations with Fastlane and Bitrise.
Technologies: Swift, SwiftUI, GraphQL, Sentry, PostHog, Firebase, Fastlane, Bitrise
Senior iOS Engineer @ Company 2
Contributed to an iOS application supporting maintenance workforce operations through daily task management and field productivity workflows.
- Rebuilt the iOS application using reusable and modular components, improving scalability and reducing feature development time.
- Introduced and standardized GitFlow, improving release stability and reducing production issues.
- Collaborated with product, QA, and leadership to define scope, estimate work, and deliver features aligned with business goals.
- Improved app performance and stability by identifying memory leaks and bottlenecks using Instruments, reducing crashes and resource usage.
Technologies: Swift, Instruments, GitFlow
iOS Engineer @ Company 3
Developed a field-service iOS application with offline-first architecture, enabling reliable performance in low-connectivity environments for mobile workforce operations.
- Increased test coverage by implementing automated UI and unit tests, improving release confidence and reducing regressions.
- Designed reusable UI components and abstractions, improving consistency and reducing duplication across the codebase.
- Part of analysis and design meetings, analysed code and presented technical options.
- Onboarded new engineers by teaching system architecture and development workflows, accelerating team ramp-up time.
- Created and maintained internal shared frameworks and libraries.
- Contributed to architectural discussions and proposed technical solutions, influencing long-term system design decisions.
Technologies: Swift, Appium, Sentry, Alamofire, Firebase, Fastlane
iOS Developer @ Company 4
Delivered multiple iOS applications end-to-end, from concept to App Store release, used by thousands of users.
- Contributed to product and technical decisions in a collaborative team environment.
- Mentored new team members, provided feedback on code implementation.
- Architected scalable, testable, and maintainable mobile solutions across banking, healthcare, and consumer applications.
- Integrated solutions into high-security banking and healthcare applications, ensuring strict data compliance and seamless user experiences.
Technologies: Swift, Alamofire, iCarousel, Charts, Google Maps
iOS Developer @ Company 5
Worked in multiple projects using Swift and Objective-C. Developed for Apple TV, Apple Watch and also a number of apps that included the chance to experience different technologies such as Beacons, Apple Watch, Apple TV and much more.
Technologies: Swift, Objective-C, JSON, REST, Parse
Honors and awards
WWDC Student Scholarship Winner & Attendee @ Apple
Selected as a WWDC Scholarship recipient in both 2015 and 2020, recognizing technical creativity and innovation among a highly competitive global applicant pool.
Education
Pontifical Catholic University of Rio Grande do Sul
Bachelor in Computer Science
Faculty of Engineering of the University of Porto
Academic Mobility Program in Computer Science