iOS App Development
Objective C
Swift
Shubham Vishwakarma
Full Stack Developer - Averlon
About FiftyFive Technologies Pvt Ltd
About
Connect with the team
Company social profiles
Similar jobs
FlutterRequired 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.
iOS App DevelopmentSwiftObjective C
Android Development
Kotlin
Java● Ability to design and implement and maintain highly complex systems and
subsystems.
● Writing well-designed, testable and efficient code.
● Designing and developing advanced applications for the Android platform.
● Working as a part of a dynamic team to deliver winning products.
● Troubleshoot, debug and optimize existing applications.
Requirements:
● Bachelor's degree in Computer Science, related technical field or equivalent practical experience
● Strong logical and analytical skills
● Should be adaptable and fast learner
● Experience in computer science, data structures, algorithms and software design.
● Experience in Software Development and coding in any general purpose programming language.
● Should have an interest in android development
Flutter
HTML/CSS
JavascriptFLUTTER DEVELOPER
GormalOne LLP. Mumbai IN
GormalOne is on a mission to make dairy farming highly profitable, especially for the smallest farmers living in the most neglected geographies. We are a dairy-focused technology solution provider with a vision to resolve the pain points of everyone in the dairy ecosystem. We are building a comprehensive platform for cattle management where farmers to AITs (Artificial Insemination technicians), para vets, veterinarians, consultants, and corporates can collaborate and benefit each other using data. Nitara offers an easy-to-use artificial intelligence-enabled herd management system for farmers/veterinary/paraprofessionals/AITs.
We are looking for a Flutter developer who has a passion for pushing mobile technologies to the limits. This Flutter app developer will work with our team of talented engineers to design and build the next generation of our mobile applications. Flutter programming works closely with other app development and technical teams.
Responsibilities
- Design and build advanced applications for the Flutter platform targeting Android and iOS platforms
- Deploy the built apps in the play store and app store
- Collaborate with cross-functional teams to define, design, and ship new features
- Work with external data sources and APIs
- Unit-test code for robustness, including edge cases, usability, and general reliability
- Work on bug fixing and improving application performance
- Continuously discover, evaluate, and implement modern technologies to maximize development efficiency
- Use SOLID principles and design patterns effectively while coding
- Follow general coding guidelines
- In-depth knowledge of DART is necessary
- Working experience in git
Basic Requirements
- Have published more than one original Flutter app
- Built and deployed the flutter app on both Android and iOS platforms
- Experience with offline storage, threading, and performance tuning.
- Familiarity with the use of sensors such as gyroscopes and accelerometers.
- Experience working with remote data via REST and JSON
- Experience with third-party libraries and APIs
- Working knowledge of the general mobile landscape, architectures, trends, and emerging technologies
- Solid understanding of the full mobile development life cycle.
- In-depth understanding of Object Orientation and any of the object-oriented languages like Java or C#
- Understanding agile development method
- Knowledge of HTML, CSS, and JavaScript
Preferred Requirements
- BS/MS degree in Computer Science, Engineering, or a related subject
- Proven software development experience with Flutter skills
- Proven working experience of minimum 2+ Years in Flutter app development
Kindly note: Salary shall be commensurate with qualifications and experience
- Have you used Swift in production code ? If yes please share the duration
- Have you used RxSwift in production code? What were the common scenarios for using it ?
- Have you used Combine in production code? What were the common scenarios for using it ?
- Have you used GCD or Operation queues in production code? What were the common scenarios for using it ?
- Have you used CocoaPods or Swift Package Manager for dependancy handlings in any of the projects you have worked ? What were the common scenarios for using it ?
- Have you used any of MVVM or VIPER or any other architecture in production code? Please specify which one.
- What size team have you been a part of? Were there interactions with designers, Product Managers and/or testers?
- Share links of your app/s on the App Store that you have contributed to.
SwiftMandatory Skills:
• Strong skills with Algorithms and Data Structures
• Strong hands-on expertise with Objective-C & Swift.
• Strong knowledge of design principles, patterns, and best practices
• Experience with offline storage, threading, and performance tuning
• Knowledge of Xcode Tools
• Experience working with iOS frameworks such as Core Data, Core Animation, Core and Core Text
• Experience with third-party libraries and APIs
• Solid understanding of the full mobile development life cycle
• Excellent Communication & Problem Solving Skills
Her is what we are looking for
• Strong and up-to-date knowledge of Swift.
• Strong knowledge of Apple Design Principles and Application Interface Guidelines.
• Experience with iOS Frameworks such as CoreData, CoreGraphics, CoreLocation and CoreAnimation.
• Experience with threading and performance tuning.
• Knowledge of Unit Testing, Instruments and Profiling.
• Knowledge of the available open-source libraries and Cocoapods for common tasks.
• Knowledge of VoIP Notifications, CallKit and Payment gateways.
• Familiarity with Real Time Databases like DynamoDB and Firebase.
• Familiarity with cloud message APIs and Push Notifications.
• Familiarity with creating dynamic libraries and modular applications. Write scalable, high-performing and reusable code.
• Knowledge of different Apple Certificates and Profiles.
• Solid understanding of the complete application development lifecycle.
• Proficient understanding of code versioning tools, such as Git.
• Continuously discover, evaluate, and implement new technologies to maximize development efficiency.
Android DevelopmentKotlinJavaDesigning and developing advanced applications for the Android platform
Unit-testing code for robustness, including edge cases, usability, and general reliability
Bug fixing and improving application performance
SwiftObjective CiOS App DevelopmentHood is a new-age anonymous social network.
Hood has recently raised $3.2Mn seed funding and is backed by top VCs, 16+ unicorn founders including Vijay Shekhar Sharma - PayTM CEO, Ritesh Agarwal- OYO CEO, Kunal Shah - Cred CEO and outstanding management team.
Role & Responsibilities
1. Design, build and improve the mobile experiences in the identity, chat and
communication business functions.
2. Solve technical problems and build the next generation of products for our
consumers, drivers and merchants.
3. Improve the testability and maintainability of the code
4. Build reusable iOS software components for interfacing with multiple applications
5. Work with backend engineering teams, both within and outside the team to build
robust, well-designed interfaces.
6. Formulate and create clear and efficient technical documentation.
7. Write code that is clear, concise, performant, tested, and easily understood by others
8. Work with backend engineering teams, both within and outside the team to build robust, well-designed interfaces.
Requirements
1. 2-4 years of experience in the application (iOS) development and product delivery.
2. Predictability and balance of product delivery speed and quality.
3. In-depth knowledge of iOS app architecture and implementation including
proficiency in Swift programming, Cocoa, Xcode and the iOS SDK.
4. Experience working with iOS frameworks such as Core Data, Core Animation, Core Graphics
5. Strong problem-solving and analytical skills and a proven track record of being able to respond effectively to customer situations.
6. A command over the technology ecosystem and the ability to learn and ramp up on the latest trends.
7. Experience with building products catering to millions and Knowledge of WebSockets and experience in managing libraries is a plus.
What you can expect from us
1. Learning Budget: If there's a workshop, book, or event you think will help you learn, we'll
cover your bill.
2. Health insurance for you and your family.
What happens after you apply?
Step 1: Within 7 days of your application our wholesome, original & expressive - our people Team will reach out to you for a quick chat.
Step 2: Within 4-6 days of chatting with the People Team, you will get a call from someone from your future team to discuss the job role.
Step 3: If all goes well, we’ll schedule a call with your future manager to deep dive into the role with you and for you to show off your skills through a small task.
Step 4: After a quick interaction with the People Team, If our vibes match, a quick call with our Founders.
If we mutually enjoy the 4 steps, we onboard you with a big smile :)
NOTE
At any step, if things don't work out, we will proactively send out an email. You are welcome to
ask for detailed feedback and re-apply in the future.
We prefer [Passion>Skills>Education]
React Native● Experience Level: Min 2+ years
● JavaScript/Typescript and React Native.
● Experience using technologies like React Native, Redux/MobX/Saga, TypeScript, modern
CSS frameworks and webpack.
● Familiarity with native build tools, like XCode, Gradle {Android Studio, IntelliJ}
● RESTful API’s, basic HTTP knowledge, GET/POST.
● Good Communication Skills
Objective CiOS App DevelopmentSwift
Follow CutshortShubham Vishwakarma
Full Stack Developer - Averlon