
SDE II – Flutter/ SDE III – Flutter
at Media and Entertainment Industry
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.

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Job Title: Mobile Application Developer -Flutter
Company: Fortmindz
Location: Kolkata
About Fortmindz:
Fortmindz is a cutting-edge software development company that specializes in delivering innovative and intuitive mobile applications. We are looking for a talented Flutter Developer to join our team and help build high-quality, visually appealing, and user-friendly mobile applications.
Responsibilities:
- Design and develop innovative mobile applications using Flutter and Dart programming language
- Collaborate with cross-functional teams to understand user requirements and translate them into technical specifications
- Implement UI/UX designs and develop custom widgets to enhance the overall user experience
- Debug and fix technical issues, ensuring the smooth functioning of the application
- Participate in code reviews and contribute to the development of best practices and coding standards
- Keep up-to-date with the latest technologies and advancements in the Flutter framework
Requirements:
- Bachelor's or Master's degree in Computer Science or a related field
- At least 2 years of experience in Flutter development
- Strong knowledge of Dart programming language and Flutter framework
- Strong knowledge of at least one state management tool such as bloc, provider or riverpod
- Should be able to implement RESTFull api's
- Experience with Agile software development methodologies
- Excellent problem-solving, analytical, and communication skills
- A passion for delivering high-quality and user-friendly mobile applications
Benefits:
- Competitive salary and benefits package
- Opportunities for career growth and professional development
- A dynamic and inclusive work environment
- Access to cutting-edge technologies and tools
If you are a talented Flutter Developer who is passionate about delivering high-quality mobile applications, we would love to hear from you! Please submit your resume and a cover letter highlighting your relevant experience.
Fortmindz is an equal opportunity employer and values diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.
Skills:
- Strong knowledge of Android SDK, different versions of Android, and how to deal with different screen sizes
- Kotlin, Java
- Important libraries include Dagger, RxJava, Realm
- MVVM Clean Architecture
- Familiarity with RESTful APIs to connect Android applications to back-end services
- Strong knowledge of Android UI design principles, patterns, and best practices
- Experience with offline storage, threading, and performance tuning
- Knowledge of the open-source Android ecosystem and the libraries available for common tasks
- Ability to understand business requirements and translate them into technical requirements
- Familiarity with cloud message APIs and push notifications
- A knack for benchmarking and optimization
- Understanding of Google’s Android design principles and interface guidelines
- Proficient understanding of code versioning tools, such as Git
Responsibilities:
- Design and build advanced hybrid mobile applications using React Native
- Lead the application development effort by being the SPOC
- Build hybrid apps using React Native for Android/iOS
- Publish apps to the corresponding App store/Play store
- Implement new technologies to maximize application performance and optimize load time
- Collaborate with the back-end developer to build the RESTful APIs
- Research on emerging technologies and trends
- Participate in the planning and design of future software and technical architectures
Qualifications
- 2 years of hands-on experience in the full life cycle of Hybrid mobile application development including publishing one or more apps to the play store & app store
- Must have developed a Hybrid Mobile application using React. Hands-on Working experience with React Native is a must.
- Experience developing backend services preferably with NodeJS.
- Experience in developing apps on native Android/iOS platforms is a plus
- Experience in designing and working with n-tier architectures (UI, Business Logic Layer, Data Access Layer) along with some experience with service-oriented architectures (SOA)
- Strong skills in RESTful web services
- Experience with Agile methodologies would be helpful
Lead the Design and Development of Android applications.
Ship reliable software practising robust software design and in-depth code reviews.
Design major software components, systems, and features and implement full-stack app foundation features and core app features.
Good understanding of Data Structure and Algorithms.
You should be able to take ownership, design, develop and deploy in a collaborative environment with other team members
Strong communication skills with a people-first approach without compromising on engineering tasks
Experience in building an app which has 1-5 Lac users
Required Skills / Qualifications :
Minimum one complete Android App developed end to end, and in play store for more than 3 years
Good hands on experience in developing and deploying Android apps react/Android native
Strong analytical and debugging skills.
Experience implementing integrated solutions with APIs built using RESTful web services.
Adapt to a dynamic work environment. Stay updated with the latest in technology and always think customer first.
You will be responsible to architect solutions using innovative technology ideas and industry-leading methodologies.
Study and understand the product specifications thoroughly to design appropriate software solutions. Suggest improvements and optimise existing implementations.
Ability to identify and deliver POCs and Demos in a record time-frame.
Provide thought leadership to the team around new technologies, processes, and approaches.
Proficiency in various Design Principles and app development methodologies
About LikeMinds: Platform for creators to build communities and monetize them: Social Networks have become more media platforms than “social” platforms. They are not designed to make real human connections. Demand for more intimate online places is higher than ever. Communities are in huge demand! Also, these “Ad-driven” platforms only reward top creators. Most creators are left out - no matter how engaged their audience is. They have to constantly beat algorithms to reach out to their own audience. Over 50 million people around the world consider themselves creators. 97% of them aren’t getting paid. As a result creators are flocking to platforms like Slack, Discord, WhatsApp & Telegram - none of which were built either for community engagement or creator monetization. Community creators have to go through the pain of managing multiple third party tools to engage and monetize their community. LikeMinds helps creators to convert their audience into a branded private community. They can monetize it by selling digital products like memberships, group chats, events, consultations and courses. As a platform purpose-built for community entrepreneurs, LikeMinds has inbuilt tools for member acquisition, onboarding, retention, moderation, monetization, and referrals. Our platform enables creators to drive high engagement and belonging via chat rooms, events, polls, member directory, and rewards. These features are in addition to powerful business tools like community website, subscription management, event reminders, analytics dashboard, cohort creation, in-app banners, data export, and much more. Custom integrations are also available for creators with existing assets.In the last few months, we have helped 100+ creators monetize their communities. These include entertainers, fitness & wellness trainers, professional domain experts, language instructors, life coaches, financial experts, micro-entrepreneurship coaches, and exam prep coaches. We are a team of entrepreneurs, techies and community builders with credible backgrounds supported by 2 large VCs.
Job Description:
- Bachelor's degree in Computer Science, Engineering or related field, or equivalent training, fellowship, or work experience
- 2+ years of practical experience in Native Android Development
- 2+ years of experience using Kotlin/Java
- Experience developing highly performant code and view layouts and the ability to diagnose performance bottlenecks
- Designing applications with latest frameworks and architecture such as MVVM, etc.
- An excellent understanding of best practices for concurrency and threading is a big plus
- A disciplined approach to development, testing, documentation and code structure in a team environment
- A constant desire to improve, learn more and take things higher
- Having worked with the Realm database and dagger is a big plus
Passion for all things Mobile and have built complex Mobile Applications with React Native for at least 2 years. Have shipped apps on either the iOS App Store or Android Play Store, and are intimately familiar with their workflows. Comfortable with jest for writing unit and integration tests / appium for end-end testing. Intuition for usability and UI design, with an ability to balance polish with the constraints of timing and scope. Curiosity to remain updated with the newest technologies and frameworks. Comfort with any of WebRTC/Backend Stack/React JS is a strong plus. Most importantly, love coding!
Design and Build iOS product and Platform
- IOS coding using Objective C and Swift Ensuring quality deliverables, fixing application defects, maintaining code and implementing application updates.
- Designing coding, Documenting design, Defect free deliverables.
- Ensure the performance, quality, and responsiveness of application.
1. Core development and end to end ownership.
2. Accelerated learning and experience of working in a fast-growing startup.
3. Freedom to innovate and tread less traveled paths.
4. Industry best perks.
As an iOS Developer,
• At least 4 years of experience developing, releasing and maintaining iOS mobile applications
• Ability to write efficient, reusable and maintainable code in swift.
• Excellent expertise in iOS SDK frameworks and fundamentals.
• Amazing debugging skills with ability to write unit test cases
• Strong computer science fundamentals.
• Startup friendly i.e self-starter, quick learner, hardworking & passionate.









