Manish Singh

Software Engineer
Full-Stack App Developer
AI Enthusiast

About Me

I’m a Flutter-focused full-stack developer with 4+ years of experience building scalable mobile and web applications across fintech, IoT, and AI-driven domains. Currently at Quokka Labs, I’m working on a large-scale fintech loan platform with separate applications for agents and customers. I’ve also built production-grade IoT-based vehicle rental systems and AI-powered applications using RAG, vector databases, and LLMs, with a strong focus on clean architecture and reliable, real-world solutions.

What I Do

Mobile & Web App Development

I build scalable, production-ready mobile and web applications using Flutter. I’ve worked on fintech platforms, subscription-based systems, and IoT-enabled apps, focusing on clean UI, performance, and maintainable architecture.

Backend, AI & System Integration

I work on backend systems using Node.js and integrate APIs, fintech services, and AI-powered features using RAG, vector databases, and LLMs. I also handle deployment, performance optimization, and end-to-end system integration.

Resume

Experience

October 2024 - Present
Quokka Labs LLP

Flutter Developer

• Working on a large-scale fintech loan management platform with separate applications for agents and customers. Responsible for developing scalable, production-ready mobile applications, collaborating closely with backend and product teams, and ensuring clean architecture, performance optimization, and reliable user experience in a real-world financial domain.

March 2022 - October 2024
Techtonic Enterprises Pvt. Ltd.

Flutter Developer

• Developed and maintained multiple production-grade mobile and web applications using Flutter. Worked on IoT-enabled vehicle rental platforms, subscription-based systems, and business apps involving real-time device control, QR-based booking, and payment integrations. Played a key role in improving app performance, stability, and overall user experience.

Education

2018 - 2021
Patliputra University, Patna

Bachelor of Computer Applications (BCA)

Ram Krishan Dwarika College (RKD College), Patna, India

Skills Set

  • Languages:
    Dart, Swift, JavaScript, Python, SQL
  • Frontend & Mobile:
    Flutter (Android, iOS, Web)
  • Backend:
    Node.js, Express, REST APIs
  • Databases:
    MongoDB, MySQL
  • AI & Search:
    RAG Systems, Vector Databases, LLM Integration
  • Tools & Platforms:
    Git, Postman, Firebase, Linux

Portfolio

Run the Day

Run the Day(RTD)

Mobile App
Cengage Digital

Cengage Digital

Mobile App
https://play.google.com/store/apps/details?id=com.glp.connect.glp_connect

Connect

Mobile Application
Liberal Hub

Liberal Hub

Mobile Application
Ecollat

Zeway Ride

Mobile App
Zeway Charging Station

Zeway Charging Station

Mobile App
SAMS

SAMS

Mobile Application
Gyatva

Gyatva

Gyatva

Blog

GeeksforGeeks Articles
Technical Writing

Technical Articles & Tutorials

Hashnode Blog
Developer Insights

Developer Blog

Contact

Delhi, India

Manish Singh

Freelance Available

How Can I Help You?

I’m currently open to discussing new opportunities, freelance projects, and collaborations. If you’d like to work together or have a question, feel free to reach out via email or LinkedIn.

Email Me LinkedIn