Available to hire
I am Chandana Billava Ramesh, a Mobile Application Developer and UI/UX Designer based in Cardiff, United Kingdom. With over 4 years of experience building fintech, trading, and consumer apps, I translate complex requirements into intuitive interfaces and robust mobile experiences.
I collaborate with product managers, designers, and engineers to refine user journeys, validate ideas with prototypes, and deliver accessible, high-quality solutions. My toolkit includes Flutter, Dart, Figma, Adobe XD, and modern testing and CI/CD practices to create delightful, performant apps.
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Beginner
Language
English
Fluent
Work Experience
Senior Flutter Developer at Quantseye AI Pvt Ltd, Bangalore
July 1, 2024 - PresentDeveloped and maintained Shutter, Agnik, and Achintya stock market applications with real-time market data updates using WebSockets. Implemented live stock price streaming, order book updates, and trading execution with efficient WebSocket handling. Optimized WebSocket reconnection strategies, message parsing, and background handling for seamless user experience. Worked with Bloc, Provider, and Cubit for state management and smooth UI updates. Improved app security with encryption, secure storage, and authentication mechanisms.
Flutter Developer at HashFoundry Technologies Pvt Ltd, Mysore
June 30, 2021 - August 11, 2025Worked on Socket App (Beta) mobile application, a blockchain-based decentralized social network. Responsible for developing and implementing the app on Flutter platform, designing and implementing smooth user interface. Actively participated in product development by discussing and implementing new features. Contributed to the entire application lifecycle from concept, designing to releases. Mentored and led a team of interns in Flutter projects.
Flutter Developer Intern
January 1, 2018 - September 19, 2025Flutter development on Socket App (Beta) for a decentralized social network; designed smooth UI, implemented client-side features, and ensured secure data handling.
Senior Flutter Developer at Tradelab Technologies Pvt. Ltd.
August 1, 2025 - September 25, 2025Developed and maintained cross-platform (Android & iOS) trading apps including Stocko, Bullfroce, Pentad, Infinn, Agnik, and Achintya, delivering real-time market updates. Implemented WebSocket-based live streaming for stock prices, order book updates, and order execution, ensuring high-performance real-time data delivery. Optimized WebSocket reconnection, background handling, and data parsing to improve reliability and user experience. Used Bloc, Provider, and Cubit for scalable state management and responsive UI. Enhanced app security with encrypted authentication and secure local storage. Managed full app lifecycle including publishing and updates on Google Play Store and Apple App Store.
Flutter Developer at HashFoundry Technologies Pvt. Ltd.
June 1, 2024 - September 25, 2025Built and launched Socket App (Beta) – a blockchain-based decentralized social networking app. Contributed to TribEx, a social network for local commerce with location-based merchant recommendations. Designed and implemented smooth and responsive UI/UX. Managed full lifecycle: concept, design, coding, testing, release. Mentored interns to ensure timely delivery of Flutter-based projects.
Intern - Flutter Developer at HashFoundry Technologies Pvt. Ltd.
May 1, 2021 - September 25, 2025Contributed to Android app for a decentralized social network, ensuring end-to-end encryption. Built secure modules for messaging and decentralized storage.
Senior Flutter Developer at Tradelab Technologies Pvt. Ltd.
August 1, 2025 - October 12, 2025Developed and maintained cross-platform Android & iOS trading apps (Stocko, Bullfroce, Pentad, Infinn, Agnik, Achintya) delivering real-time market updates. Implemented WebSocket-based live streaming for stock prices, order book updates, and order execution; optimized reconnection, background handling, and data parsing to improve reliability. Applied Bloc, Provider, and Cubit for scalable state management and responsive UI design. Enhanced app security with encrypted authentication and secure local storage. Managed full app lifecycle, including publishing and updates on Google Play Store and Apple App Store. Apps are live on Play Store and App Store: Agnik – https://play.google.com/store/apps/details?id=com.mastertrust.agnik | Appstore - https://apps.apple.com/gb/app/agnik-demat-trading-stocks-ipo/id6677025754
Flutter Developer at HashFoundry Technologies Pvt. Ltd.
June 1, 2024 - October 12, 2025Built and launched Socket App (Beta) – a blockchain-based decentralized social networking app. Worked on TribEx, a social network for local commerce; enabled user follow, recommendations for merchants and service providers around location; designed and implemented smooth UI/UX; managed full lifecycle from concept through release; mentored interns to ensure timely delivery of Flutter-based projects. App is live on Play Store.
Intern - Flutter Developer at HashFoundry Technologies Pvt. Ltd.
May 1, 2021 - October 12, 2025Contributed to Android app for a decentralized social network, ensuring end-to-end encryption. Built secure modules for messaging and decentralized storage.
Senior Flutter Developer at Tradelab Technologies Pvt. Ltd.
August 1, 2025 - October 12, 2025Developed and maintained cross-platform (Android & iOS) trading apps including Stocko, Bullfroce, Pentad, Infinn, Agnik, and Achintya with real-time market updates; implemented WebSocket-based live streaming for stock prices, order book updates, and order execution; optimized reconnection, background handling, and data parsing; applied Bloc, Provider, and Cubit for scalable state management; secured authentication and local storage; managed app publishing on Google Play Store and Apple App Store.
Flutter Developer at HashFoundry Technologies Pvt. Ltd.
June 1, 2024 - October 12, 2025Built and launched a blockchain-based decentralized social networking app (Socket App Beta); developed TribEx social network for local commerce; designed and implemented smooth UI/UX; managed full lifecycle; mentored interns.
Intern - Flutter Developer at HashFoundry Technologies Pvt. Ltd.
May 1, 2021 - October 12, 2025Contributed to an Android app for a decentralized social network with end-to-end encryption; built secure modules for messaging and decentralized storage.
Senior Flutter Developer at Tradelab Technologies Pvt. Ltd.
August 31, 2025 - August 31, 2025Developed and maintained cross-platform trading apps delivering real-time market updates, implemented WebSocket-based live streaming for market data, order book updates and trade executions, optimized reconnection logic and data parsing, applied scalable state management with Bloc/Cubit/Provider and Clean Architecture, strengthened security with OAuth2, biometric authentication, and encrypted local storage, and managed end-to-end app distribution including CI/CD and store publishing.
Flutter Developer at HashFoundry Technologies Pvt. Ltd.
June 30, 2024 - June 30, 2024Built and launched Socket App (Beta), a blockchain-based decentralized social networking platform; developed TribEx, a local social commerce app; designed and implemented responsive UI components, mentored interns and ensured production readiness.
Intern — Flutter Developer at HashFoundry Technologies Pvt. Ltd.
May 31, 2021 - May 31, 2021Supported development of decentralized social networking app with end-to-end encryption; implemented secure messaging and decentralized storage modules.
Senior Flutter Developer at Tradelab Technologies Pvt. Ltd.
July 1, 2024 - August 1, 2025Led end-to-end development of 6+ fintech trading apps serving 100K+ active users. Reduced data latency by 25% through optimised WebSocket streaming for live market updates. Refactored legacy modules into Clean Architecture using Bloc/Cubit, improving maintainability. Enhanced app stability by detecting memory leaks, reducing crashes by 30%. Implemented OAuth2, biometric login, and encrypted local storage for secure workflows. Maintained CI/CD pipelines using TestFlight, App Store Connect, and Google Play Console.
Flutter Developer at HashFoundry Technologies Pvt. Ltd.
June 1, 2021 - June 1, 2024Developed Socket App, a decentralised blockchain social platform with end-to-end encrypted messaging. Built TribEx, a community-driven local commerce app, managing the full SDLC. Revamped UI/UX designs with responsive layouts and complex animations, increasing user engagement by 20%. Mentored 3 junior developers in Flutter best practices and architectural patterns.
Flutter Developer Intern at HashFoundry Technologies Pvt. Ltd.
February 1, 2021 - May 1, 2021Assisted in developing decentralised storage modules and encrypted chat systems. Built reusable UI widget libraries to accelerate senior developers’ workflow.
Flutter Developer / UI/UX Designer at HashFoundry Technologies Pvt. Ltd.
June 1, 2021 - June 1, 2024Designed and implemented UI for a decentralised social platform with a strong focus on visual hierarchy and interaction clarity. Produced wireframes and prototypes using Figma and Flutter to communicate ideas and validate designs. Improved usability and accessibility across onboarding, messaging, and content discovery flows. Introduced design review checkpoints between designers and developers to improve output quality. Mentored junior developers on UX fundamentals and building intuitive interfaces.
Flutter Developer / UI/UX Designer Intern at HashFoundry Technologies Pvt. Ltd.
February 1, 2021 - May 1, 2021Supported prototyping and layout development for secure communication features. Built reusable UI components and layout structures to support consistent design.
Education
Master of Computer Application at Visvesvaraya Technological University, Belgaum, Karnataka
January 1, 2019 - December 31, 2021Bachelor of Computer Applications (BCA) at St. Philomena Degree College, Puttur
January 1, 2016 - January 1, 2021Master of Computer Applications (MCA) at VTU, Belgaum, Karnataka
January 1, 2019 - January 1, 2021Bachelor of Computer Applications (BCA) at St. Philomena Degree College, Puttur
January 1, 2016 - January 1, 2021Master of Computer Applications (MCA) at Visvesvaraya Technological University, Belgaum
January 1, 2019 - December 31, 2021Bachelor of Computer Applications (BCA) at St. Philomena Degree College, Puttur
January 1, 2016 - December 31, 2019Master of Computer Applications (MCA) at Visvesvaraya Technological University, Belgaum
January 1, 2019 - December 31, 2021Bachelor of Computer Applications (BCA) at St. Philomena Degree College, Puttur
January 1, 2016 - December 31, 2019Master of Computer Applications at Visvesvaraya Technological University, Belgaum
January 1, 2019 - January 1, 2021Bachelor of Computer Applications at St. Philomena Degree College, Puttur
January 1, 2016 - January 1, 2019Master of Computer Applications (MCA) at Visvesvaraya Technological University, Belgaum
January 1, 2019 - December 31, 2021Bachelor of Computer Applications (BCA) at St. Philomena Degree College, Puttur
January 1, 2016 - December 31, 2019Master of Computer Applications (MCA) at Visvesvaraya Technological University
January 1, 2019 - January 1, 2021Bachelor of Computer Applications (BCA) at St. Philomena Degree College
January 1, 2016 - January 1, 2019Qualifications
Java Programming (Great Learning)
January 11, 2030 - October 12, 2025AWS Machine Learning (Coursera)
January 11, 2030 - October 12, 2025Java Programming (Great Learning)
January 11, 2030 - October 30, 2025AWS Machine Learning (Coursera)
January 11, 2030 - October 30, 2025AWS Machine Learning (Coursera)
January 11, 2030 - December 1, 2025Java Programming (Great Learning)
January 11, 2030 - December 1, 2025Introduction to TypeScript (Great Learning)
January 11, 2030 - December 1, 2025AWS Machine Learning (Coursera)
January 11, 2030 - December 1, 2025Java Programming (Great Learning)
January 11, 2030 - December 1, 2025Introduction to TypeScript (Great Learning)
January 11, 2030 - December 1, 2025AWS Machine Learning (Coursera)
January 11, 2030 - December 4, 2025Java Programming (Great Learning)
January 11, 2030 - December 4, 2025Introduction to TypeScript (Great Learning)
January 11, 2030 - December 4, 2025Introduction to TypeScript
January 11, 2030 - December 25, 2025AWS Machine Learning
January 11, 2030 - December 25, 2025Java Programming
January 11, 2030 - December 25, 2025Industry Experience
Software & Internet, Financial Services, Professional Services, Media & Entertainment, Computers & Electronics
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Beginner
Hire a App Developer
We have the best app developer experts on Twine. Hire a app developer in Cardiff today.