iOS Developer

Required Skills: Advanced Flutter & Dart Expertise, Scalable Mobile Architecture Design, Performance Optimization & Profiling, OTT & Media App Engineering, Code Quality, Leadership & Cross-Functional Collaboration

Criteria:

• 6+ years of total software development experience with minimum 3+ years in Flutter
• Product-based company experience is mandatory (B2C scale preferred)
• Proven ability to own end-to-end Flutter mobile architecture for high-scale apps
• Strong expertise in Dart, Flutter SDK internals, and advanced state management (Bloc / Riverpod / Provider)
• Hands-on experience with platform channels and native integrations (Android & iOS)
• Deep knowledge of performance optimization: app startup time, FPS, memory leaks, widget rebuilds, rendering pipeline
• Experience with profiling tools (Dart DevTools, Android Profiler, Xcode Instruments)
• Strong skills in offline-first architecture, caching layers, and API integrations
• Ability to optimize video playback, downloads, DRM, and OTT workflows
• Strong command of clean code, SOLID principles, and scalable mobile system design
• Experience reviewing code and mentoring engineers (Senior IC role)

Description

Role Overview

We are looking for an experienced Flutter SDE III who can take complete ownership of architecture, performance optimization, and app scalability for our OTT mobile applications. This is a senior individual contributor role requiring deep technical expertise and the ability to influence design decisions at a product level.

Key Responsibilities

1. Architecture & Design (High-Impact IC Role)

• Own the end-to-end architecture of company’s Flutter mobile applications.

• Design scalable, modular, testable app ecosystems aligned with OTT-specific performance constraints.

• Lead decisions around state management, navigation hierarchy, API structure, offline capabilities, and security.

2. Performance & Device Optimization

• Diagnose and resolve mobile performance bottlenecks, including:

  o App startup time, FPS drops, memory leaks.

  o Heating issues, over-rendering, and expensive widget rebuilds.

  o Battery optimization, efficient network calls, caching strategy.

• Run in-depth profiling using tools like Dart DevTools, Android Profiler, and Xcode Instruments.

3. OTT-Specific Engineering

• Optimize video playback workflows for low-latency streaming.

• Implement efficient background processes for downloads, DRM, content sync, and push notifications.

4. Product & User Experience Ownership

• Collaborate closely with Product, Backend, and Video Engineering teams.

• Convert business/product requirements into high-performance technical solutions.

• Ensure UI/UX consistency across platforms while maintaining performance budgets.

5. Code Quality & Leadership

• Write clean, extensible, and maintainable code with strong adherence to SOLID and reactive programming principles.

• Review code for mid-level and junior engineers; act as a mentor across teams.

• Establish engineering standards, internal frameworks, and reusable components for long-term scalability.

Required Skills & Experience

Technical Must-Haves

• 6+ years of total experience with 3+ years in Flutter for large-scale products.

• Mandatory product-based company background (B2C scale preferred).

• Strong expertise in:

  o Dart, Flutter SDK internals

  o Bloc, Riverpod, Provider, or other state management approaches

  o Custom animations, rendering pipeline, shader-based optimization

  o Platform channels (Android/iOS) and native integrations

  o API integration, caching layers, offline-first architecture

• Strong understanding of mobile system design, scalable architecture, and low-level performance engineering.

Good to Have

• Experience with video streaming apps, OTT platforms, or media-heavy applications.

• Understanding of analytics frameworks (Firebase, Segment, Mixpanel).

• Exposure to CI/CD pipelines, automated testing, and fastlane.

Personality & Mindset

• Product thinking, not just feature-building.

• Ownership-driven with strong ability to take strategic technical decisions.

• Comfortable working in a fast-paced 0→1 and scale-up environment.

Why Join company?

• Work on a high-growth OTT app with millions of users.

• Opportunity to own the core mobile experience end-to-end.

• Build impact-heavy features at scale with a lean, highly skilled engineering team.

As a Mobile Software Developer your primary objective will be to design and build mobile applications for iOS platforms while actively participating in application design discussions and decisions. You will be an integral part of the development and maintenance of numerous cutting edge mobile applications. You'll utilize your expertise and your familiarity with iOS and XCode. Additionally, experience with Agile or XP methodologies or related iterative development processes will be necessary to hit the ground running and make an immediate impact. You will also utilize your knowledge of Software Development Lifecycle Tools - source control (Git, SourceTree, SVN), issue tracking, and web service integration (REST, JSON and HTTP).

Our organization moves at light speed, so the ability to work with minimal supervision while delivering excellent results will be a priority. Strong communication and information gathering skills are required to capture and interpret business and functional requirements, fill in the gaps intelligently, interpolate designs and functionality as necessary, and identify opportunities for process improvements/efficiencies. This is your opportunity to work with our talented team to design and build the next generation of our mobile applications and server backend.

RESPONSIBILITIES

• Design and build advanced applications for iOS platforms communicating with our servers
• Collaborate with cross-functional teams to define, design, and ship new features
• Unit-test code for robustness, including edge cases, usability, and general reliability
• Work on bug fixing and improving application performance and maintenance
• Continuously discover, evaluate, and implement new technologies to maximize development efficiency

We are looking for an experienced IOS developer with a track record of developing Mobile applications, user-friendly and high-performing applications.

Experience:
2-3 years of experience in iOS Development

Job Location:
Lucknow

Skills Required:
Programming Languages: Swift ,Objective C, Cocoa, XML, JSON
Operating Systems/Development Platforms: MAC, iOS all versions

Roles and Responsibilities :

• Experience in various aspects of the Agile SDLC including application development
  (application structure, operating system APIs, debugging, performance, security) and
  deployment.
• Experience with rest APIs, offline storage, and threading.
• Strong experience in memory management, performance tuning, and resource
  optimizations.
• Experience in working with Test-driven development (TDD).
• Experience in Unit Testing and UI testing.
• Programming iOS native mobile applications from specifications.
• Scope, analyze, design, test, debug and implement complex iOS mobile applications.
• Cutting-edge native mobile application prototyping and development on iPhone/iPad.

Desired Candidate Profile

• 2+ years of experience in mobile application design and development.
• 2+ years of experience with iPhone development platforms experience developing native ios apps: swift, ios SDK, and Xcode.
• Experience integrating with third-party libraries, Restful API, and JSON.
• Deep familiarity with objective-c and cocoa touch experience working with ios frameworks such as core data, core animation, core graphics, and core text working knowledge of the general mobile landscape, architectures, trends, and emerging technologies experience integrating with WebSocket,  VOIP, call kit.
• Must be self-motivated, possess strong communication skills, and be able to work in a team-oriented environment

• Strong working experience in IOS application development is a must. First-hand experience of native mobile apps using Swift must.

• Experience with Swift, Swift UI, Unit test.

• Strong system design and architecture skills - specifically for IOS. Curiosity to tinker around, explore new paradigms and strongest for continuous improvement. Strong problem-solving skills.

• Understanding of network connections, Rest API's and scheduling. Strong knowledge about security standards (e.g. HTTPS) and privacy standards.

• Idea/experience of the unit and instrumentation testing in IOS. Optimizing app performance and memory consumption.

• Excellent code data knowledge, socket programming & debugging skills.

• Debugging apps using simulators and related tooling.

• Design and build advanced applications for the iOS platform, Swift and Objective - C.

• Integrate and consume web services (JSON, XML, etc.)

• Familiar with Version control system such as GIT.

About Plum

We are making health insurance - simple, accessible and affordable. Hundreds of businesses of all sizes from startups to large corporates trust Plum for their employee's health protection.

Healthcare in India is seeing a phenomenal shift. Healthcare cost is seeing an inflation that is three times the general inflation. Treatments of diseases including Covid-19 can wipe out entire household savings. The majority of Indians won't be able to afford health insurance on their own. As many as 600mn Indians would depend on employer-sponsored insurance.

Enter Plum. Plum is re-imagining the health insurance stack and accelerating the penetration of health insurance in India to 100%. Plum has forged new underwriting and fraud detection algorithms to enable companies as small as 2 to benefit from group insurance. The platform enables realtime insurance design & pricing to enable companies to buy insurance in 3-clicks. And offers employees hassle-free claims experience through an integrated digital process.

Plum is backed by leading global investors including Tiger Global, Sequoia Capital, Tanglin Ventures and Incubate Fund (read more https://www.plumhq.com/blog/plum-series-a-funding">here)

• Design, build, and maintain high-performance, reusable, and reliable Java code. 
• Translate designs and wireframes into high-quality components and modular code, ensuring the best possible performance, quality, and responsiveness of the application
• Strong advocate of Google’s iOS design principles and interface guidelines
• Strong sense of ownership and integrity demonstrated through clear communication and collaboration.
• Having experience with building and maintaining an open source project or design library is a plus. 

• 3 + years of experience of iOS SDK, Swift and how to deal with different screen sizes. 
• Experience with local databases, offline storage, threading, and performance tuningFamiliarity with RESTful APIs to connect iOS applications to back-end services
• Familiarity with the use of additional sensors, such as camera, gyroscopes and accelerometers
• Knowledge of the open-source iOS ecosystem and the libraries available for common tasksAbility to understand business requirements and translate them into technical requirements