Harsimran Singh | Freelance Flutter Developer & Mobile App Expert

Allied Technologies•Cleveland, US•July 2024 – Present

• Led design and delivery of 10+ production Flutter apps featuring group audio/video calling, live streaming and real-time speech/text translation by integrating WebRTC, Firebase and OpenAI, supporting 100K+ installs and 2k+ concurrent call capacity during peak usage
• Managed end-to-end mobile release process for 14+ production apps, handling store configuration, submissions, and post-release fixes to ensure platform compliance and timely approvals
• Engineered reusable Dart libraries and custom widgets that standardized complex UI patterns across projects, improved app responsiveness and reduced cold-start and load times by up to 20%
• Partnered with product and QA to convert feature requests into technical roadmaps and release plans, drove on-time delivery of 90% of priority features across 6 quarterly releases, improving feature delivery predictability and cutting rollbacks by 40%

Harav Technologies•Mohali, India•August 2023 – July 2024

• Designed and implemented complete UI for AI Chatbot project, enhancing user engagement through social templates and prompt suggestions
• Contributed to development of photo and video editing app, focusing on user-friendly interface and smooth performance
• Created a Web Browser using Flutter, prioritizing user-centric design and fast performance
• Developed advanced features for mobile applications using Flutter framework

Bugsmirror Research Private Limited•Indore, India•August 2022 – July 2023

• Contributed to multiple web and mobile projects using React, Flutter, Angular, and other technologies
• Engaged in R&D focused on Android security, including finding bugs and security vulnerabilities in code
• Conducted static analysis of binary code at beginner level
• Developed more than 10 Flutter packages for internal use
• Gained proficiency in GRPC and ProtoBufs, implementing them in various client projects

Bugsmirror Research Private Limited•Indore, India•July 2022 – August 2022

• Completed numerous web-based projects, focusing on UI design with graphics and animations
• Created a chat app with video and voice calling capabilities using Flutter WebRTC and GRPC ProtoBufs
• Developed Flutter applications with focus on performance optimization

Sant Longowal Institute of Engineering and Technology•Sangrur, India•Graduation Year

Sant Longowal Institute of Engineering and Technology•Sangrur, India•Diploma Completion