Senior Android Developer

About the Role

We are looking for a Senior iOS Engineer to build and own the trading experience on iOS in Swift — real-time

data via Combine, interactive charting, smooth animations, and the premium feel expected of a financial

application. What We’re Looking For

You have shipped native Swift apps that handle real-time data, complex reactive pipelines, and

performance-sensitive UI. You know UIKit and SwiftUI deeply and can bridge between them confidently. Ideally, you have worked on trading, fintech, or data-intensive iOS products. You take ownership of your domain, drive

technical decisions, and hold yourself and your team to a high quality bar. What You’ll Do

• Own the mobile trading experience on iOS — module architecture, navigation, performance, and

end-to-end quality. • Build and optimize real-time data rendering using Combine — WebSocket streams, subscription

management, and efficient SwiftUI/UIKit binding. • Integrate complex WKWebView-based components with JavaScript–Swift message passing. • Collaborate with product and design to deliver polished, trust-building interfaces for a financial product. • Define iOS engineering standards — architecture patterns, testing strategy, accessibility, and

performance benchmarks. • Drive code reviews, mentor team members, and champion best practices across the iOS team. • Participate in stabilization and release cycles — Instruments profiling, device matrix testing, and

regression analysis. Must-Have

• 4+ years native iOS development with Swift in production apps on the App Store. • Strong Combine experience for reactive programming, data streams, and async coordination. • Experience with both SwiftUI and UIKit — ability to compose views and bridge between the two. • Experience with real-time data rendering and WebSocket integration on iOS. • Experience integrating WKWebView with JavaScript bridge (WKScriptMessageHandler). • Understanding of iOS architecture patterns — MVVM, Coordinator, Clean Architecture. • Experience with push notifications (APNs), deep linking, and Universal Links.

Nice-to-Have

• Prior experience building trading, brokerage, or fintech iOS apps. • Experience with charting library integration on iOS. • Experience building custom UI components — animated charts, calendar views, card-based layouts. • Knowledge of server-driven UI (SDUI) patterns for dynamic rendering. • Familiarity with accessibility best practices (VoiceOver, Dynamic Type). Tech Stack

Language Swift 5.9+

UI SwiftUI + UIKit (hybrid)

Reactive Combine, async/await

Real-time URLSessionWebSocketTask / Starscream, Combine streams

Charting Charting library via WKWebView bridge

Testing XCTest, XCUITest (E2E), Instruments profiling

Roles & Responsibilities:

1. Develop cutting edge user experience for healthcare the platform
2. Design, build, test, deploy, maintain, and enhance iOS apps
3. Contribute towards the product roadmap
4. Work on an interesting range of problems like instant messaging in poor networks, smart diagnosis- personalization for doctors in each specialty, optimal matching problems
5. Help bring healthcare processes on mobile- prescriptions, auto-diagnosis
6. Work with network and battery optimisations, messaging, APIs, external libs, SDKs, Analytics, Offline apps, UI, visualisations and animations
7. Lead a team of developers and work in tandem with Product and Design teams

Skills & Qualifications:

1. Be proficient with Objective-C or Swift , and Cocoa Touch.
2. Experience with iOS frameworks such as Core Data, Core Animation, as well as offline storage, threading, and performance tuning
3. Must be familiar with RESTful APIs to connect iOS applications to back-end services
4. Experience with performance and memory tuning with tools 
5. Experience with cloud messaging APIs and usage of push notifications.
6. Knowledge of code versioning tools 
7. Built and managed apps with over 1 million users

Responsibilities:

• Work with our dynamic team on different projects (products & services) to build high quality mobile application
• Designing and building native mobile applications for Apple’s iOS platform 
• Collaborating with the design team to define app features
• Work on bug fixing and improving application performance
• Publishing application on App Store
• Debug and optimize code for performance and scalability
• Designing and implementing application updates. Turn feedback into custom solutions for client needs
• Create and maintain the technical documentation
• Collaborate with a team to define, design, and ship new features
• Continuously discover, evaluate, and implement new technologies to maximize development efficiency
• Stay up-to-date with the latest iOS technologies and advancements

Skills:

• Strong Knowledge & understanding about SWIFT and Objective C
• Strong Knowledge & understanding of executing projects in Xcode, OOPs concept
• Ability to write clean, maintainable and efficient code
• Familiar working with RESTful APIs, third party libraries and API, cloud message APIs and push notifications
• At least have published and managed 1 app in Appstore
• Knowledge and understanding in Dependency injection tool like dagger or similar
• Knowledge of Hybrid app development platforms will be preferred

Characteristics:

• Good communication skills across all platforms
• Creative mind-set – and the ability to approach a problem creatively
• Highly organized with the ability to work independently in a fast paced team environment
• Ability to work in a team in a transparent and entrepreneurial culture. 
• Self-motivated with initiative to reach challenging targets
• Exceptional attention to detail
• Positivity, focus and a winning mentality allied with kindness
• Curiosity, energy, creativity, and bravery with a strong desire to help to build the o2h culture

Job Role:  

• Ability to consistently produce clean, efficient code based on client specifications  
• Ability to integrate software components and third-party programs to meet specifications  
• Reliability and proficiency in verifying and deploying programs and systems  
• Ability to troubleshoot, debug and upgrade existing software  
• Collaborative mindset and willingness to recommend and execute improvements  
• Commitment to optimization and accountability evident in creating technical documentation for reference and  reporting  

 Must Have 

·         Must Have:  React native development,Android/iOS Native Development Experience  

·         Good To Have: MySQL, TypeScript, Ionic 

Personal Skills:   

·         Organized, self-motivator, great communicator, detail oriented and fast learner.   

·         Excellent written and verbal communications skills at the business and technical level   

·         Strong work ethics, commitment and team work   

·         Should be a good team player & ready to shoulder additional responsibility   

• 2+ years of work experience in consumer-facing high traffic (millions of concurrent users) mobile applications with a desire to work in growing fast-paced startups.
• Worked on applications from scratch. Well-versed with building apps for various screen densities and sizes.
• Up to date on upcoming trends in android and its ecosystem with respect to design, architecture, etc.
• Experience in optimizing all important parameters like network utilization, application size, and battery.
• Experience with kotlin, coroutines, dagger, retrofit, Rx-android, and android architecture components, etc.
• Should have used mock frameworks, modular code design, and popular design patterns.

• Good grasp of algorithms, design patterns, memory management, and multithreaded programming.
• Experience with SAAS platforms for mobile development like Analytics, Push Notifications, Cloud Storage, Ad Networks, etc.
• Hands-on experience with Android's debugging, unit-testing, memory, and performance optimization tools.
• Experienced in databases like SQLite, ROOM DB.
• Experience in using Device hardware integrations like GPS, Camera, etc.
• Experience with performance and memory tuning with tools.
• Knowledge of engineering practices like CI-CD.
• Strong communication and team collaboration skills.
• Experience in iterative development methodologies like Agile.

Key Requirements-

Experience required- 0 to 2 years

1. Having a personal Mac book is preferred.

2. Knowledge of Java, Objective-C, Swift, web technologies, and UI/UX standards (Mandatory)

3. Good understanding of iOS release cycle and familiarity with CI/CD platform and pipelines

4. Knowledge of iOS frameworks such as Core Data, Core Animation, etc.

5. Proficient understanding of code versioning tools

6. Understanding of Apple's design principles and interface guidelines.

7. Degree in Computer Science, Engineering, or related field.

Roles and Responsibilities :

1. Writing clean and efficient codes for IOS applications.

2. Troubleshooting and bug fixes for applications, to ensure that codes are clean and secure.

3. Developing new features and user interfaces from wireframe models

4. Recommending changes and enhancements

5. Writing clean, readable, and testable codes.

6. Staying up to date with new mobile technologies trends, applications, and protocols.

You can apply here directly-

https://docs.google.com/forms/d/e/1FAIpQLSfvlGAkys6bHSG9gTnnUZYRKD8QHNmT4J3jYKm76D7flg2xwg/viewform?usp=sf_link