iOS 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

⚡ About DrinkPrime

We're DrinkPrime, a startup based in Bengaluru that's all about making clean, safe, and healthy drinking water accessible to everyone. We provide cutting-edge IoT-enabled customized water purifiers on a subscription basis, and we currently serve more than one lakh users across Bengaluru, Delhi NCR, and Hyderabad. We're not just another boring water purifier manufacturing company - we're a forward-thinking drinking water solution provider that speaks directly to our target audience, and this has earned us the support of some big VCs like Sequoia in the industry. We're looking for awesome tech professionals who want to join us in creating history and making a real difference. So why not come and be a part of our journey towards a better future?

💼 Role & Responsibilities

At DrinkPrime, we have a vision of disrupting the water industry. We believe that technology has a key role to play by providing a highly scalable platform that can seamlessly connect and control millions of devices. We are looking for people who are technically excellent and, at the same time, enjoy the excitement and unpredictability of working in a startup environment. You will have a great opportunity to be part of the core technology team.

We are a well-funded high-growth startup currently operating in Bangalore and have a great open environment. We're currently in hybrid mode and would prefer our employees to be located in Bangalore after joining.

• Collaborate with the development team to design and develop high-quality iOS applications.
• Assist in the entire application lifecycle, including concept, design, build, deploy, test, and release.
• Write clean and maintainable code following best practices and coding standards.
• Contribute ideas and solutions to improve the overall quality and user experience of iOS applications.
• Troubleshoot and resolve application defects and issues reported by users or internal stakeholders.

Our ideal candidate would be someone who has at least 2-4 years of hands-on knowledge of iOS app development. Experience in working with IOT devices and handling native connectivity functionality like bluetooth and Wifi is plus.

We are looking for an iOS developer responsible for the development and maintenance of applications aimed at a range of iOS devices including mobile phones and tablet computers. Your primary focus will be development of iOS applications and their integration with back-end services. You will be working alongside other engineers and developers working on different layers of the infrastructure. Therefore, a commitment to collaborative problem solving, sophisticated design, and the creation of quality products is essential.

Responsibilities:-

• Design and build applications for the iOS platform
• Ensure the performance, quality, and responsiveness of applications
• Collaborate with a team to define, design, and ship new features
• Identify and correct bottlenecks and fix bugs
• Help maintain code quality, organization, and automatization

Skills:-

• Proficient with Objective-C or Swift.
• Familiarity with RESTful APIs to connect iOS applications to back-end services
• Knowledge of other web technologies and UI/UX standards
• Understanding of Apple’s design principles and interface guidelines
• Knowledge of low-level C-based libraries is preferred
• Familiarity with cloud message APIs and push notifications
• Knack for benchmarking and optimization
• Proficient understanding of code versioning tools (such as Git, Mercurial or SVN)
• Familiarity with continuous integration

Education Qualification:-

• Undergraduate in Engineering related to Computer Science and Information Technologies and Postgraduate in Computer Science
• Shouldn’t have Backlog or Arrear.

• Having good knowledge of iOS SDK & interface builders
• Proficient in Objective C, iOS, X-Code etc.
• Continuously updating the expertise on latest releases of iOS products
• Should have developed at least 5 applications as per Apple standards
• Experience with Database in Mobile Apps like SQlite & Core Data.
• Experience in integrating Webservices like SOAP, REST and POST with Mobile App.
• Experience with Google Map & GPS Integration
• Hands on experience of Xcode, Objective C, JSON & Sqlite on iOS platfor
• Develop Native& Hybrid mobile applications
• Implementing Mobile Payments, Mobile Shopping & Security