UX Designer (Part Time/Freelancer) for Mobile App

What We Expect:

• Min 3 years of mobile development experience, with Flutter & Dart.
• Proven ability to build and scale real-time, high-performance fintech applications.
• A sharp eye for stunning UI/UX design that balances aesthetics with seamless functionality.
• Mastery over state management solutions (Provider, Riverpod, BLoC, or similar).
• Hands-on experience with real-time data streaming, push notifications, and WebSockets.
• Strong expertise in security, encryption, and compliance—you know fintech demands precision.
• A track record of integrating RESTful APIs, GraphQL, and third-party services into flawless mobile apps.
• A mindset that thrives under pressure—we work fast, and we expect results.
• Lead the development of world-class fintech mobile applications that redefine user expectations.
• Architect and optimize blazing-fast, low-latency Flutter applications for financial markets.
• Work with designers, backend engineers, and product teams to craft seamless, intuitive, and ultra secure user experiences.
• Solve hard problems at scale—whether it’s optimizing performance, reducing load times, or ensuring absolute security.
• Push the boundaries of mobile fintech innovation, from AI-powered insights to predictive analytics.
• Own your work end-to-end—no excuses, no hand-holding, just results.

Must-Have Skills:

• Min 3 years of mobile development experience, with 2+ years in Flutter & Dart.
• Proven ability to build and scale real-time, high-performance fintech applications.
• A sharp eye for stunning UI/UX design that balances aesthetics with seamless functionality.
• Mastery over state management solutions (Provider, Riverpod, BLoC, or similar).
• Hands-on experience with real-time data streaming, push notifications, and WebSockets.

Why Join Us?

• Work with some of the sharpest minds in fintech and mobile engineering.
• Build products that traders, investors, and financial professionals rely on daily.
• A culture that values bold innovation, fast execution, and pushing boundaries.
• Expect challenges, high expectations, and relentless pursuit of excellence.
• Take complete ownership—from ideation to deployment, every pixel and every line of code should scream excellence.
• Competitive compensation, performance-driven growth, and a real opportunity to lead and shape the future of fintech mobile applications.

Job Title: Senior iOS Software Developer

Exp: 4 - 7 Years

CTC: up to 12 LPA

Location: Tardeo Mumbai

Technical Skills:

o Proficiency in Swift and Objective-C.

o Solid understanding of object-oriented programming

o Knowledge of memory management and multi-threading

o Experience with embedded databases and other system data stores

o Strong understanding of iOS frameworks such as UIKit, Core Data, Core Animation, and Core Graphics.

o Good  knowledge of performance limits and characteristics

o Good sense of UI design execution principles

o Experience with RESTful APIs, JSON, and third-party libraries to connect to backend services.

o Knowledge of mobile app architecture patterns such as MVC, MVVM, and VIPER.

o Experience with version control systems, preferably Git.

o Familiarity with continuous integration/continuous deployment (CI/CD) pipelines.

o Implementation of automated testing platforms and unit tests, benchmarking and optimization 

o Understanding of Apple’s design principles and interface guidelines.

• Design, build, and maintain efficient, reusable, and reliable Flutter code to develop feature-rich, high-performance mobile applications for Android and iOS platforms.

Collaborate with designers to implement visually stunning and responsive user interfaces, ensuring an excellent user experience across various devices and screen sizes.

• Integrate mobile applications with backend APIs and services to facilitate seamless data exchange and ensure smooth app functionality.

• Identify and resolve bugs, performance issues, and other problems that may arise during the development process or in the live applications.

• Continuously optimize application performance and enhance the user experience by employing efficient algorithms and techniques.

• Stay up-to-date with the latest trends, tools, and technologies related to mobile development, particularly within the Flutter ecosystem, and apply them to improve development processes and outcomes.

Requirements

• Minimum 4 years of professional experience in mobile app development, with a focus on Flutter.

• Proven expertise in developing robust and complex mobile applications using the Flutter framework.

• Solid understanding of mobile app development concepts, including UI/UX design, offline storage, threading, and performance optimization.

• Strong proficiency in Dart programming language, along with a good understanding of object-oriented programming (OOP) principles.

• Familiarity with RESTful APIs and experience in integrating mobile applications with backend services.

• Strong communication skills to collaborate effectively with team members and clients.

Android Developer

Skills Required: -

• Strong knowledge of Android SDK, different versions of Android, and how to deal with different screen sizes
• 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
• Ability to design applications around natural user interfaces, such as “touch”
• 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
• Familiarity with continuous integration
• Should be good in Socket.io and Google map api integration expert.

Android Developer Requirements:

• Degree in software development, computer science, or similar.
• Proficiency in Java, Kotlin, or C++.
• Ability to use the Android Studio, including the Android SDK, with ease.
• Prior experience as an android developer will be advantageous.
• Excellent coding and proofreading skills.
• Top-notch teamwork and communication skills.
• Ability to manage your workload with minimal supervision.

• Translate designs and wireframes into high-quality code
• Design, build and maintain high performance, reusable, and reliable Java
• code
• Ensure the best possible performance, quality, and responsiveness of the
• application
• Identify and correct bottlenecks and fix bugs
• Help maintain code quality, organization, and automatization
• Follow best practices in code implementation
• Willing to work on flexible time zones if required

• Strong knowledge of Android SDK, different versions of Android, and how to deal with different screen sizes
• 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
• Ability to design applications around natural user interfaces, such as touch
• Familiarity with the use of additional sensors, such as gyroscopes and
• accelerometers (preferred)
• 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
• Familiarity with continuous integration
• Must have experience in Chat (one to one, group chat, file sharing)
• Knowledge in Google Maps APIs is preferred

Software Developer - React Native Developer

Job Description

A major part of our work at Cobold Digital LLP is getting businesses online. We provide efficient solutions to our clients in the fields of Website Design & Development & Website Maintenance. If you wish to work with a wide array of clients that depend on you to represent them online, our Website Development team is the right place for you.

We are looking for an experienced top-notch React Native Developer to grow with our dev team. As a React.js Developer, you will be involved from conception to completion with projects that are technologically sound and aesthetically impressive. 

Responsibilities

• Work as part of a small team to build React Native Applications for our clients.
• Architect, Build and maintain excellent React Native applications with clean codes.
• Implement pixel-perfect UI’s that match designs.
• Implement clean, modern, smooth animations and transitions that provide an excellent user experience.
• Integrate third-party APIs.
• Write unit and integration tests.
• Release applications to IOS and Android platforms.
• Work with Native modules when required.
• Assist with building estimates.
• Attend daily standups
• Interact clients via google meet, Zoom, and Emails.
• Work with Modern tools like Jira, Bitbucket, Google Docs, etc.

Requirements 

• 2+ years of Profession experience working with React Native.
• 3+ years of experience as Software Developer
• Experience with Swift,Objective C and Java is a plus but not required
• Must have experience on a large complex system
• Ability to take ownership of your work.
• Ability to manage multiple projects
• Undertaking of React Native best practices.Experience with JavaScript
• Experience with REACT
• Experience with HTML / CSS
• Experience with REST API's
• Git knowledge is a plusTeam player 
• Good time-management skills 
• Great interpersonal and communication skills