Flutter 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.

Responsibilities:

• Design and develop user-friendly, robust, and scalable Flutter/Android/iOS applications.
• Collaborate with product managers, designers, and backend developers to understand requirements and translate them into functional applications.
• Implement clean and efficient code following best practices, coding standards, and design patterns specific to mobile development.
• Ensure high performance, responsiveness, and stability of the applications by conducting thorough testing and debugging.
• Integrate RESTful APIs to fetch and send data from/to the backend servers.
• Work with SQLite or other database technologies to implement data persistence in mobile applications.
• Implement effective UI/UX designs following Material Design guidelines to ensure a smooth and intuitive user experience.
• Collaborate with the team to identify and implement solutions to improve application performance, maintainability, and user engagement.
• Stay up-to-date with the latest trends, technologies, and best practices in mobile development and share knowledge with the team.
• Assist in troubleshooting and resolving issues reported by users or clients, providing timely and effective solutions.

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.

We are looking for an Android Developer who possesses a passion for pushing mobile technologies to the limits. This Android app developer will work with our team of talented engineers to design and build the next generation of our mobile applications. Android programming works closely with other app development and technical teams.

Responsibilities

• Design and build advanced applications for the Android platform
• Collaborate with cross-functional teams to define, design, and ship new features
• Work with outside 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 new technologies to maximize development efficiency

Requirements

• BS/MS degree in Computer Science, Engineering or a related subject
• Proven software development experience and Android skills development
• Proven working experience in Android app development and have published at least one original Android app
• Experience with Android SDK
• 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.

Job Types: Full-time, Permanent

Responsibilities:

·       Develop and maintain mobile applications using Flutter framework

·       Work with UI/UX designers to implement engaging and intuitive user interfaces

·       Collaborate with back-end developers to integrate with RESTful APIs and other services

·       Participate in code reviews and provide constructive feedback to improve code quality

·       Stay up-to-date with emerging trends and technologies in mobile app development

·       Participate in Agile development process, including sprint planning, daily stand-ups, and retrospectives

·       Debug and troubleshoot issues reported by end-users

·       Contribute to the development of project plans, timelines, and budgets

·       Communicate effectively with team members and project stakeholders

Requirements:

·       Bachelor's degree in Computer Science or related field

·       Strong experience with Flutter framework and Dart programming language

·       Experience with mobile app development for both iOS and Android platforms

·       Strong understanding of software design patterns and architectural principles

·       Strong debugging and troubleshooting skills

·       Experience with Agile development methodologies

What will you do? –

• Developing high quality native mobile experiences for our products – with a focus on UI/UX, simplifying complex use cases so that a non-expert can succeed
• Experience with Flutter.
• Knowledge of the latest mobile app development concepts, trends, software design patterns, usability, and HCI guidelines for mobile apps.
• Practical experience in consuming RESTful APIs

About the Job –

• 2+ years in mobile software development.
• Have two or more iOS/Android apps developed with Flutter. Either deployed on the AppStore/Google Play or available on GitHub.
• Design and build sophisticated and highly scalable apps using Flutter.
• Build custom packages in Flutter using the functionalities and APIs already available in native Android and IOS.
• Translate and build the designs and Wireframes into high quality responsive UI code.
• Explore feasible architectures for implementing new features.
• Resolve any problems existing in the system and suggest and add new features in the complete system.
• Suggest space and time efficient Data Structures.
• Follow the best practices while developing the app and keeping everything structured and well documented.
• Use CI/CD for smooth deployment.
• Document the project and code efficiently.
• Manage the code and project on Git to keep in sync with other team members and managers.
• Ensure security guidelines are always followed while developing the app.
• Consulting with our customer facing representatives about software system design and maintenance.
• Experience with third-party libraries and APIs.
• Understanding of the Agile development life cycle.
• Experience with automated testing and building.
• Experience with Git, Jenkins, or other version control tools.
• Familiarity using version control tools like Git, Subversion etc. and IDEs like Android Studio, VS Code etc.

What do you need? –

• Knowledge of the latest mobile app development concepts, trends, software design patterns, usability, and HCI guidelines for mobile apps.
• Strong communication skills and ability to work in a collaborative environment with remote teams.
• Should enjoy solving tough problems and working with new technologies
• You’ll be partnering with design, product and user research teams to build world class applications.
• You’ll be working in a highly collaborative work environment with high degree of ownership and continuous feedback.
• Have a product mindset, can work with cross-functional teams to identify requirements and convert them to tech specs and action plans
• Have great learning appetite and ready to experiment with new technologies

About Numen (https://numenhealth.com):
Numen Health is a Health-tech company with a goal to reimagine healthcare in India. Through an amalgamation of our healthcare team with the power of AI and the Internet of Things (IoT), we make healthcare easier and accessible through a data-based preemptive approach. Our mission is to facilitate change in the healthcare industry by moving from a reactive approach to a proactive one.
We are a wonderful, young team with experience in scaling up Indian and international businesses from the ground up. We are looking for like-minded and enthusiastic people who are passionate about making a lasting difference and want to help us revolutionize the way healthcare is delivered to a billion Indian!

Our Vision:
To shift the healthcare ecosystem from a ‘Sick-care' approach to a ‘Holistic-healthcare' approach. We aim to do that by enabling doctors and caregivers to move from treating ailments to employing a data-based,
preemptive approach.
About Product:
We offer preventive healthcare programs to individuals to improve their health. These plans are crafted in consultation with their treating doctor and a dedicated care team remotely monitors the progress in real[1]time. For doctors, Numen is a virtual facility to cater to all of their patient’s needs, remotely.
Why Join?
At Numen, you have the opportunity to make tangible changes to the existing healthcare systems in India
making it preventive and affordable. By joining the Numen team, you get to be part of a young, dynamic
team that is passionate about making a change and a fast-paced environment with multiple opportunities to
learn and grow.

Job Overview:
Software Development Engineers FE will be responsible to participate in all stages of the software product development life cycle. This will include analysing system and user requirements, designing software flowcharts, creating user interfacing applications (Web Or Mobile) , troubleshooting bugs, and running tests to improve system functionality. An ideal
candidate would be someone who has proficiency in Flutter frameworks, good analytical skills, the ability to anticipate issues and frame remedial actions, and excellent teamwork skills.

Responsibilities:
● Write simple, efficient, and maintainable code.
● Develop, scale and maintain Mobile Applications written in Flutter.
● Manage individual priorities, deadlines, and deliverables.
● Validating the functionality and security of the Mobile applications.
● Function well in a fast-paced, rapidly changing environment.
● Ensuring best coding standards and practices to improve and maintain quality.
● Meeting with the engineering and product team to discuss project definitions and goals.

Requirements: 
● Bachelor/Master degree in CS or related field from a reputed college.
● 2-6 years of experience in frontend software development.
● Sound knowledge of Dart & Flutter.
● Solid grip on the programming basics like DS and algorithms.
● Prior experience in start-ups or health-tech will be a plus.
● Highly effective communication and interpersonal skills
● Strong troubleshooting and debugging skills

• Design and Build sophisticated and highly scalable apps using flutter.
• Build custom packages in Flutter using the functionalities and APIs already available in native Android and IOS.
• Translate and Build the designs and Wireframes into high quality responsive UI code.
• Write efficient queries for core Data.
• Explore feasible architectures for implementing new features.
• Resolve any problems existing in the system and suggest and add new features in the complete system.
• Suggest space and time efficient Data Structures.
• Follow the best practices while developing the app and also keeping everything structured and well documented.
• Document the project and code efficiently.
• Manage the code and project on Git in order to keep in sync with other team members and managers.
• Interact with the Product Manager to help understand end-user feedback.
• Ensure security guidelines are always followed while developing the app.
• Suggest new features and/or enhancements.
• Maintain software through product lifecycle including design, development, verification and bug fixes.
• Resolve all the bugs in a timely manner.
• Execute app verification protocol.
• Follow company policies and quality procedures to ensure quality product deliverables.
• If you have experience with Bluetooth Low Energy (BLE) based devices and related applications please highlight the same in your resume