
Software Developer - Web / Mobile Development (IOS/Android)
at A Product startup in early stages in Mumbai

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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.
Android Developer at Viha Technosoft
Do you want to work on a mobile app that serves the most trending videos on the internet to millions of users? Do you want to work and participate in building and scaling this mobile application that will enable users to engage on comment threads, submit content and build their profiles? Come and join us.
We are looking for an individual:
- Problem solver with the ability to think critically and in real world measures
- A person with a product mindset and ability to think beyond the product
- specs considering the larger implications, both technical and user facing
- A person who takes ownership of the code's quality and performance (very important).
- Proactive learner and Explorer
Must have:
- React Native / Flutter / Kotlin mobile app development experience
- Strong CS fundamentals OOPS concepts, algorithms, data structures
- Strong architectural and structuring skills. We take code performance very seriously.
- Deep knowledge of basic React Native components
- Ability to write well documented, clean JavaScript code
- Ensure the performance, quality, and responsiveness of applications on Android and iOS devices
- Should be able to use test cases to ensure product quality.
- Working with third party dependencies and debugging dependency conflicts. Knows how to audit a library before using it in the production application.
- In Depth knowledge of build tools like XCode, Android Studio
- Knowledge of React Native Lifecycle and publishing cycles on Google and Apple app store.
- Strong understanding of Git and ES6
Good to have
- Redux
- Working knowledge of Swift, Java is a plus.
- Exposure to Android and Swift Development
Job location : Indore
Salary: As per market standards
Experience : 5-10years
Notice period - Immediate joiner
About the company
Credit cards haven't changed much for over half a century so our team of seasoned bankers, technologists, and designers set out to redefine the credit card for you - the consumer. The result is OneCard - a credit card reimagined for the mobile generation. OneCard is India's best metal credit card built with full-stack tech. It is backed by the principles of simplicity, transparency, and giving back control to the user.
The Engineering Challenge
“Re-imaging credit and payments from First Principles”
Payments is an interesting engineering challenge in itself with requirements of low latency, transactional guarantees, security, and high scalability. When we add credit and engagement into the mix, the challenge becomes even more interesting with underwriting and recommendation algorithms working on large data sets. We have eliminated the current call center, sales agent, and SMS-based processes with a mobile app that puts the customers in complete control. To stay agile, the entire stack is built on the cloud with modern technologies.
Check out our apps here:
OneCard (Best credit card app) : http://www.getonecard.app/">www.getonecard.app
OneScore (5 million downloads): http://www.onescore.app/">www.onescore.app
Senior Software Engineer – Frontend
Create a consumer facing front end application that will be used by millions of users.
What you will do:
- Develop our mobile apps using React Native.
- Work with backend, frontend, and other developers to build out a customer-centric experience that will constantly evolve.
- Work with our designers and customer success team to create a seamless user experience.
- Respond to support team tickets as needed to resolve bugs and issues.
- Participate in contributing ideas, updates, and product development areas to the team.
Experience Range:
3-5 years with technical hands-on experience in building a consumer mobile app. You must have shipped an app to the stores.
Technical Expertise:
- 3-5 years experience Android/iOS native apps or React Native based apps and Web front-end technologies such as React.
- Strong command of JavaScript ES6.
- Know how to build (fairly) complex layouts without using any CSS frameworks.
- Strong problem solving and analytical skills using data structures.
- Comfortable in a fast-paced startup environment.
- Bias for action shipping quality code quickly.
We are looking for a Hybrid Mobile application developer who likes being part of an innovative team, where he/she will get to work on the best product in the market. Able to Design and develop Hybrid Mobile applications using the latest web technologies, primarily React native.
● Who can join immediately
● Opportunity to work in Cloud-based Data Solutions and Products.
Required Skills & Experience:
● Extensive experience in Hybrid Mobile application design and development using
React native.
● Has a minimum of 2+ years of experience in React native.
● Experience with RESTful APIs and server-side APIs integration.
● Hands-on experience in HTML, CSS, JS, jQuery, Bootstrap, and Angular
● Experience with Git.
● Worked in Agile projects.
● Excellent communication & interpersonal skills, able to work both in teams and individually.
Job Title: Android Developer
Experience: 2 yrs to 6 yrs
Notice Period: upto 15 days
Location: Chennai
Job Description :
- Strong knowledge of Android SDK, different versions of Android, and how to deal with different screen sizes
- Strong knowledge of Android UI design principles, architectural patterns, and best practices
- Strong Knowledge in integrating Android apps with back-end applications through RESTful web services
- Experience with offline storage, threading, and performance tuning
- Experience in app release management and publishing
- Familiarity with cloud message APIs and push notifications using FCM
- Familiarity with the use of additional sensors, such as gyroscopes and accelerometers
- Knowledge of the open-source Android ecosystem and the libraries
- Ability to understand business requirements and translate them into technical documents
- Understanding of Google’s Android design principles and interface guidelines
Scope of Work:
- Understand the Requirement
- Create wireframes / UI
- App development & testing
- Release Management & Publishing apps
- Following Coding best practices
- 4+ years of mobile software development (iOS & Android).
- Bachelor’s Degree in Computer Science, Engineering, or related field.
- Deep understanding and proficiency in building mobile apps from scratch using at least one mobile language (Swift, Java, Objective-C, etc.). Experience with multiple platforms is preferred.
- Desire and ability to expand expertise into additional mobile languages.
- Expertise in designing testable software and building large scale, complex applications.
- Self-motivated with strong problem-solving skills.
- Passionate about writing clean, well organized, and production-ready code.
- A portfolio of Apps or SDKs already built and in the App Store and Google Play.
- Desire to build a larger in-house team and manage a group of developers over time.
- Some management experience preferred.
Our client is a revolutionary Educational services platform, that brings in innovation and expertise in their ways of learning. Awarded as one of the best Google apps of 2017, the app provides students with a variety of online courses that cover K12 subjects, Entrance exams, Engineering and FInance stream topics, as well as Self-help notes.
Their unique and simple AI based site and app feature 500+ courses, nearly a lakh videos and tests, and also imparts strength and weakness analysis for the students to improve their knowledge base. The 5yr old organisation is one of the most loved ed-tech platforms that reaches more than 4.5Mn registered users.
- Developing iOS applications and their integration with back-end services.
- Identifying and resolving the bugs/ issues in real-time and improving application performance.
- Working alongside other engineers, and developers working on different layers of the infrastructure. Therefore, being commitment to collaborative problem solving, sophisticated design, and the creation of quality products is essential.
- Unit-testing code for robustness, including edge cases, usability, and general reliability.
- Continuously discovering, evaluating, and implementing new technologies to maximize development efficiency
- Has 3-5 years of experience working as an iOS Developer in a product based startup/ company with a minimum 3-years experience as a Swift Developer.
- BE/ B.Tech from Tier 1 college (Computer Science/ Relevant Degree) or great set of experience of working in startups/product based companies
- Has worked on IAP app is must & has knowledge of RESTful APIs to connect to back-end services
- Extensive experience developing in Objective-C, Swift and Programmer Tools: Xcode, Instruments, and Git Git, Mercurial or SVN
- Experience with JSON, XML, JavaScript, and interfacing iPhone/ iPad applications to server side API.
- Understanding of UI Design, Apple’s Design Principles, Interface guidelines and object-oriented programming.
- Working knowledge on a video processing/displaying application will be bonus
- Should be able to show sample apps that you have created and answer questions related to them.
Job Description: Looking for React Native Developer,Having Experience range from 3 to 7 Years.







