Justin Joseph
Bengaluru
Summary
Senior iOS Developer with 9 years of experience in developing scalable mobile applications and SDKs for fintech, booking, and communication sectors. Skilled in Swift, SwiftUI, Combine, and UIKit, focusing on modular architectures. Delivered impactful SDKs and applications, led UIKit to SwiftUI migrations, and implemented CI/CD pipelines within Agile teams.
Overview
9
9
years of professional experience
Work History
Senior Consultant
Xebia IT Architects India Pvt Ltd
08.2025 - Current
- Developed core flight booking features, including search, fare calendar, seat selection, add-ons, and booking confirmation.
- Migrated major application modules from UIKit to SwiftUI, and Combine, improving maintainability and UI performance.
- Modularised the codebase using the Swift Package Manager (SPM), enabling faster build times and cleaner dependency management.
- Implemented and maintained CI/CD pipelines for automated builds, testing, and deployments.
- Collaborated with cross-functional Agile teams to deliver scalable, production-ready features.
Senior Software Developer
Agile Hire Technologies
06.2022 - 08.2025
- Designed and developed a high-performance UPI SDK, powering 1M+ merchant applications, optimized for speed and modular integration.
- Implemented EMVCo-compliant 3D Secure 2.x authentication workflows to ensure secure transaction verification.
- Built and maintained a scalable PSP SDK, contributing to 50M+ installs, focusing on performance and ease of integration.
- Optimized SDK architecture to reduce integration effort, and improve backward compatibility.
- Worked closely with partners and backend teams to support large-scale payment adoption.
Software Engineer
Accubits Technologies
03.2020 - 06.2022
- Implemented encrypted messaging using XMPP + WebRTC, enabling audio/video calls with Firebase-driven event handling.
- Developed assessment modules, performance tracking, and analytics dashboards with optimized REST API handling.
- Built an astronomy-themed devotional marketplace with in-app purchases, content bundles, and Provider-based state management.
Software Engineer
Techversant Infotech
07.2018 - 03.2020
- Built production-grade iOS applications using RxSwift, Alamofire, and scalable REST API services.
- Developed responsive UI with Auto Layout, custom animations, and reusable UIKit components.
- Managed complex app states using reactive programming, improving maintainability and performance.
IOS Developer
AMAX Technologies
06.2017 - 06.2018
- Developed comprehensive booking features encompassing service selection, availability, user profiles, and booking history.
- Implemented custom UICollectionView and UITableView components to enhance dynamic user interface.
- Utilized Core Data caching to enable offline access and boost application performance.
- Collaborated with design and backend teams to ensure seamless delivery of end-to-end features.
Education
Bachelor of Science - Computer Science And Programming
Mar Baselios Christian College of Engineering
Idukki, Kerala06-2016
High School Diploma -
St.Michael's H.S.S
Kaduthuruthy, KottayamHigh School Diploma -
Emmanuel's H.S.S
Kothanalloor, KottayamSkills
- Swift and Objective-C
- SwiftUI and UIKit
- Combine and RxSwift
- SDK development
- Flutter
- MVC, MVVM, and VIPER
- API integration
- Performance optimization
- CI/CD pipelines
- SOLID principles
- React Native
- Problem solving
Timeline
Senior Consultant
Xebia IT Architects India Pvt Ltd
08.2025 - Current
Senior Software Developer
Agile Hire Technologies
06.2022 - 08.2025
Software Engineer
Accubits Technologies
03.2020 - 06.2022
Software Engineer
Techversant Infotech
07.2018 - 03.2020
IOS Developer
AMAX Technologies
06.2017 - 06.2018
Bachelor of Science - Computer Science And Programming
Mar Baselios Christian College of Engineering
High School Diploma -
St.Michael's H.S.S
High School Diploma -
Emmanuel's H.S.S