Karthik Solleti

Lead IOS Developer

Hyderabad, Telangana, India8 yrs 8 mos experience

Most Likely To SwitchHighly Stable

Key Highlights

Architected iOS platform for India's #1 rummy app.
Reduced app launch time by 50% and improved crash-free sessions to 99%.
Mentored junior developers, promoting two to senior roles.

Stackforce AI infers this person is a B2C Gaming Engineer specializing in scalable iOS applications.

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Skills

Core Skills

Ios ArchitecturePerformance OptimizationUser Experience DesignModular ArchitectureFeature DevelopmentUser Interface DesignIos DevelopmentApi Integration

Other Skills

SwiftObjective-CSwiftUIUIKitCombineAsync/AwaitCore DataTCAMVVM-CDependency InjectionSPMFastlaneCrashlyticsMixpanelXCTest

About

I've shipped iOS apps used by 7+ million players — and I've broken them, debugged them at 2am, and rebuilt them to be faster, safer, and more maintainable. Over 7 years at Head Digital Works, I've grown from writing UIKit controllers to architecting the entire iOS platform for India's #1 rummy app (A23 / Ace2Three). That journey involved reducing app launch time by 50%, pushing crash-free sessions to 99%, and building a modular SDK architecture that lets product teams ship features 25-35% faster. My core belief: great iOS engineering isn't about knowing every API — it's about making architectural decisions on Day 0 that don't haunt the team on Day 300. What I bring to a team: → Deep-stack iOS: Swift Concurrency, SwiftUI + UIKit hybrid, Combine, Clean Architecture, TCA → Performance obsession: Instruments profiling, launch time, memory, battery → Leadership that scales: code reviews, architecture documentation, junior mentoring → Cross-functional fluency: I speak Backend, QA, DevOps, and Product — and translate between them Apps I've built run on millions of Indian devices. I'm now looking for a Senior/Lead iOS role where architecture decisions matter and the codebase is something to be proud of. karthiks819@gmail.com | github.com/karthiks819

Experience

8 yrs 8 mos

Total Experience

2 yrs 10 mos

Average Tenure

6 yrs 9 mos

Current Experience

Head digital works

3 roles

iOS Technical Lead

Promoted

Apr 2025 – Present · 1 yr 1 mo · Hyderabad

iOS Technical Lead — A23 (Ace2Three) & A23 Games | Head Digital Works | 22M+ registered players
Own the entire iOS architecture for India's largest real-money gaming platform: defined modular boundaries, dependency injection strategy, and SDK contracts used by 4 product squads shipping in parallel
Drove crash-free session rate from ~94% to 99%+ by systematic Instruments profiling (Allocations, Leaks, Time Profiler) and fixing 12 critical memory leaks and retain cycles across core game modules
Reduced app cold launch time by 50% (from ~4s to ~2s) through lazy module loading, deferred analytics initialisation, and image pipeline optimisation
Accelerated feature time-to-market by 25-35% by enforcing modular architecture with clear interface contracts, enabling squads to build and ship features without cross-team merge conflicts
Mentored 4 junior/mid-level iOS developers via weekly 1:1s, architecture walkthroughs, and hands-on PR reviews; 2 promoted to Senior within 18 months
Launched lightweight onboarding flow redesign that increased user signups by 28% within 30 days, expanding active user base and ad impression inventory
Collaborated with Security team to resolve 6 mobile vulnerabilities identified in penetration testing, including insecure data storage and certificate pinning gaps
Led iOS 17/18/26 compatibility upgrades ensuring zero App Store compliance violations across all releases
Technologies: Swift, Objective-C, SwiftUI, UIKit, Combine, Async/Await, Core Data, TCA, MVVM-C, Dependency Injection, SPM, Fastlane, Crashlytics, Mixpanel, XCTest, Instruments, Xcode

SwiftObjective-CSwiftUIUIKitCombineAsync/Await+13

Module Lead

Promoted

Apr 2022 – May 2025 · 3 yrs 1 mo · Hyderabad

Module Lead — A23 (Ace2Three) iOS Platform | 7M+ players | Head Digital Works
Redesigned monolithic iOS codebase into a modular SDK-based architecture (apps-within-apps pattern), reducing feature time-to-market by 25-35% and enabling parallel squad delivery without merge conflicts
Profiled and optimised the A23 app using Xcode Instruments (Allocations, Time Profiler, Leaks): reduced cold launch time by 50% and drove crash-free session rate to 99%, directly improving Day-7 retention
Built SwiftUI-based reusable component library shared across modules, improving UI development speed by ~40% and reducing per-feature design implementation time
Implemented async/await + Combine-based reactive data layer, eliminating callback pyramid patterns and reducing race-condition bugs by ~60% across the codebase
Managed Core Data + SQLite persistence with query optimisation strategies to support offline-first gameplay with zero data loss during network drops
Led code review culture: introduced PR templates, architecture decision records (ADRs), and coding standards docs that onboarded 3 junior developers within their first sprint
Integrated CI/CD pipeline via Fastlane + Git branching strategy, cutting manual release effort and shortening release cycles by 15-30%
Technologies: Swift, SwiftUI, Combine, UIKit, Async/Await, Core Data, SQLite, Fastlane, XCTest, Instruments, MVVM, Clean Architecture, SPM

SwiftSwiftUICombineUIKitAsync/AwaitCore Data+9

iOS Developer

Aug 2019 – Apr 2022 · 2 yrs 8 mos · Hyderabad

A23 (Ace2Three) — India's #1 Rummy platform | 7M+ players | Head Digital Works
Architected and shipped the Private Tables feature — a real-time invite-and-join multiplayer flow including table session management, shareable game codes, and referral integration; drove measurable growth in peer-group session frequency
Rebuilt iOS app rebranding from the ground up: redesigned alerts, view controllers, and navigation flows to align with new brand identity across all iOS versions (iOS 11+)
Developed responsive bet-selection UI using UIPickerView with custom animations, reducing user interaction time on game-entry flows by ~30%
Integrated CleverTap analytics and push notification framework to enable real-time event tracking and personalised re-engagement campaigns
Implemented Core Animation-driven card deal/shuffle sequences, improving perceived performance and user delight scores in internal QA reviews
Collaborated with backend and QA teams in an Agile/Scrum environment to maintain bi-weekly release cadence
Technologies: Swift, Objective-C, UIKit, Core Animation, MVVM, CleverTap, URLSession, REST APIs, CocoaPods, Git, Xcode

SwiftObjective-CUIKitCore AnimationMVVMCleverTap+7

Srikari impetus solutions pvt. ltd.

iOS App Developer

Feb 2018 – Aug 2019 · 1 yr 6 mos · Hyderabad Area, India

Developed and maintained feature-rich stock trading and investment iOS applications (Savart, Gigadocs) using MVC architecture and Swift, ensuring high performance and reliability.
🔑 Key Responsibilities:
iOS Development: Built responsive, adaptive UI for iPhone and iPad using Storyboards, Auto Layout, UIKit
API Integration: Integrated secure RESTful APIs for trading operations with authentication and error handling
Third-party Integration: Integrated Fitbit SDK for health-data-driven investment insights
Authentication: Implemented secure social authentication using Apple's Social Framework and Janrain identity management
Code Reviews: Streamlined code reviews and version control using Pull Requests, Git branching strategies, and CI workflows
Testing & Debugging: Utilized Crashlytics and Google Analytics for monitoring and debugging
Collaboration: Worked with cross-functional teams in Agile environment
💡 Technologies: Swift 3, Xcode, Alamofire, GitHub, CocoaPods, Facebook SDK, Sketch, Jira, ObjectMapper, Google Analytics, Crashlytics, UIKit, MVC
📱 Applications Developed:
Savart - Stock trading and investment app
Gigadocs - Healthcare document management app