Pintu Singh
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Turning Ideas into Scalable apps that empower people and transform businesses.

A Senior Software Engineer with 5+ years of experience building cross-platform apps that combine clean design, seamless functionality, and scalable architecture.

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Senior Software Engineer

15+

Projects

5+

Years
Experience

“Crafting apps that blend clean design, robust engineering, and seamless user experience into solutions that truly make an impact.”

Professional Highlights

A quick snapshot of my journey as a software engineer - blending creativity, clean code, and problem-solving to deliver impactful apps and digital experiences.

Years Experience
5+
Projects Delivered
15+
Certifications
10+
Happy Clients
10+

Technical Expertise

A snapshot of the technologies and tools I use to build scalable, high-quality software.

FlutterExpert
DartExpert
KotlinIntermediate
SwiftBeginner
JavaScriptIntermediate
TypeScriptIntermediate
Node.jsIntermediate
MongoDBIntermediate
Next.jsIntermediate
FigmaIntermediate
GitAdvanced
DockerIntermediate
NginxBeginner

What I Stand For

A closer look at the principles and strengths that shape my work as a software engineer.

Technical Expertise
I build cross-platform apps with Flutter, focusing on performance, clean architecture, and scalability. With strong skills in Node.js, Firebase, APIs, and cloud services, I deliver end-to-end solutions from UI to deployment.
Craft & Design
I believe great software is not just functional but also beautiful and intuitive. From pixel-perfect UIs to smooth user flows, I create experiences that balance aesthetics with usability.
Collaboration & Mentorship
As a Senior Engineer, I mentor teams, run code reviews, and define standards that maintain quality and speed. I value team synergy and helping others grow while keeping projects on track.
Growth & Community
I continuously explore new tech like React and Next.js, contribute to open source, and share knowledge with the developer community - ensuring I stay ahead while giving back.

Professional Journey


A track record of building, scaling, and maintaining apps that solve real-world problems.

Freelance Mobile App Developer

Upwork

Jul 2024 - Present

Freelance Mobile App Developer

Upwork | Jul 2024 - Present

As a freelance mobile and web app developer on Upwork, I've collaborated with global clients to build robust and scalable apps. I handle the full lifecycle-from requirement analysis and UI/UX planning to deployment and post-launch support-while ensuring clean architecture and seamless user experiences.

Achievements:

  • Successfully completed and delivered multiple cross-platform projects, maintaining 100% job success and top-rated status on Upwork.
  • Designed and deployed mobile applications for diverse sectors including fintech, logistics, healthcare, and social networking.
  • Integrated complex third-party APIs such as maps, payments, chats, and analytics into client applications.

Freelance Senior Software Engineer (Flutter)

ELaunch Solutions Pvt. Ltd.

Oct 2024 - Present

Freelance Senior Software Engineer (Flutter)

ELaunch Solutions Pvt. Ltd. | Oct 2024 - Present

As a Flutter expert and technical advisor, I contributed to mission-critical features, guided architectural decisions, and helped the team scale production apps. I also mentored developers and ensured best practices in state management and modular UI development.

Achievements:

  • Transitioned from a full-time to a freelance role while preserving team synergy and delivery timelines.
  • Delivered complex UI flows and state management systems for apps with thousands of users.
  • Mentored team members on Flutter best practices and package development strategies.

Senior Software Engineer (Flutter)

ELaunch Solutions Pvt. Ltd.

Sep 2022 - Sep 2024

Senior Software Engineer (Flutter)

ELaunch Solutions Pvt. Ltd. | Sep 2022 - Sep 2024

As a senior Flutter engineer, I led end-to-end app development, collaborated with cross-functional teams, and established coding standards and CI/CD pipelines. My efforts improved launch speed, reduced bugs, and enhanced app performance.

Achievements:

  • Led 10+ projects from scratch to deployment for clients in eCommerce, EdTech, Fitness, and Travel.
  • Developed internal reusable Flutter packages to improve team velocity by 30%.
  • Conducted peer code reviews and provided training sessions to onboard junior developers.
  • Reduced app loading times and memory usage through advanced optimization techniques.

Android/Flutter Developer

ELaunch Solutions Pvt. Ltd.

Apr 2020 - Sep 2022

Android/Flutter Developer

ELaunch Solutions Pvt. Ltd. | Apr 2020 - Sep 2022

Joined as a Android/Flutter developer to build cross-platform mobile apps. Worked closely with designers and backend teams to deliver high-quality apps while honing my skills in UI development, state management, and integrations.

Achievements:

  • Developed apps across eCommerce, EdTech, and fitness domains.
  • Integrated APIs, push notifications, and authentication flows.
  • Built scalable UI components and implemented responsive designs.

Mobile App Developer

Freelancer

Mobile App Developer

Freelancer

As an independent Flutter developer, I focused on building front-end apps with strong UI/UX and essential mobile features. This role gave me early exposure to client collaboration and end-to-end app delivery.

Achievements:

  • Delivered fully functional Flutter-based mobile apps for startup founders and small businesses.
  • Implemented advanced UI components and smooth navigation flows tailored to each app's requirements.
  • Built apps with essential mobile features including authentication, push notifications, and payment gateway integration.

Education & Certifications


A journey of continuous learning - from formal education to professional certifications that strengthen my expertise.

Next.js App Router Fundamentals

Vercel | Aug 2025

Credential Id: dashboard-app-87746

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Next.js App Router Fundamentals

Vercel | Aug 2025

Credential Id: dashboard-app-87746

Show Credential

React Foundations for Next.js

Vercel | Aug 2025

Credential Id: react-foundations-87746

Show Credential

React Foundations for Next.js

Vercel | Aug 2025

Credential Id: react-foundations-87746

Show Credential

Advanced Flutter UI and State Management

Packt - Coursera | Jul 2025

Credential Id: OS4LKK17IY77

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Advanced Flutter UI and State Management

Packt - Coursera | Jul 2025

Credential Id: OS4LKK17IY77

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Project Management

Great Learning Academy | Jan 2025

Credential Id: JMOFIMUR

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Project Management

Great Learning Academy | Jan 2025

Credential Id: JMOFIMUR

Show Credential

Certified Flutter Developer

CareerNinja - LearnTube | May 2024

Credential Id: DJA-B-1-2305-0

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Certified Flutter Developer

CareerNinja - LearnTube | May 2024

Credential Id: DJA-B-1-2305-0

Show Credential

Diploma in Information Technology

Gujarat Technological University, Ahmedabad | May 2020

Dr. S. & S.S. Gandhy College of Engineering & Technology, Surat

Diploma in Information Technology

Gujarat Technological University, Ahmedabad | May 2020

Dr. S. & S.S. Gandhy College of Engineering & Technology, Surat

Secondary School Certificate

Gujarat Secondary and Higher Secondary Education Board | Mar 2017

Secondary School Certificate

Gujarat Secondary and Higher Secondary Education Board | Mar 2017

Project Highlights


A curated selection of standout apps and platforms I've built, showcasing clean code, scalable architecture, and intuitive design.

Shnatter

Shnatter

Social Networking

Shnatter is a Web3-based social platform designed for the Jewish community and friends. It emphasizes privacy, security, and meaningful connections while staying free from ads and commissions.

MintPay Wallet

MintPay Wallet

FinTech / Digital Payments

MintPay Wallet is a secure and user-friendly digital payments platform. It enables seamless deposits, transfers, and exchanges, making money management simple for individuals and businesses.

Ezzycare

Ezzycare

Healthcare

Ezzycare connects users with nearby doctors, nurses, labs, and pharmacies through an intuitive app. It simplifies healthcare access by making appointments, lab tests, and medicine orders seamless and reliable.

Build Better Apps, Faster


I help startups and businesses craft seamless apps, scalable backends, and maintainable code, so you can focus on growth.

Mobile App Development

High-performance Flutter apps for Android & iOS with beautiful UI, smooth performance, and scalable architecture.

What I Offer:

  • Cross-platform development (Flutter)
  • Custom UI/UX tailored to your brand
  • Integration with third-party APIs
  • Performance tuning
  • Thorough testing & QA

Web App Development

Responsive and modern web apps built for speed, usability, and scalability - from PWAs to dashboards.

What I Offer:

  • Responsive and adaptive UI
  • Progressive Web App (PWA) support
  • Backend and API integration
  • Security & performance optimization
  • Ongoing support & updates

API Development & Integration

Secure, reliable, and scalable APIs - from custom backend solutions to smooth third-party integrations.

What I Offer:

  • RESTful API development
  • Third-party service integration
  • Authentication & security best practices
  • Performance tuning
  • API documentation & versioning

Maintenance & Support

Keep your app stable and up-to-date with regular updates, bug fixes, performance monitoring, and enhancements.

What I Offer:

  • Regular updates & refactoring
  • Bug fixes & issue resolution
  • Performance monitoring
  • Feature enhancements
  • Technical support on demand

Code Reviews

In-depth Flutter code reviews to improve quality, maintainability, and ensure production-ready standards.

What I Offer:

  • Structured code audits
  • Performance and architecture feedback
  • Flutter best practices enforcement
  • GitHub PR reviews with suggestions
  • Actionable documentation for teams

Developer Mentorship

Personalized guidance to help developers master Flutter, write cleaner code, and grow confidently in their careers.

What I Offer:

  • Weekly mentorship sessions
  • Code walkthroughes & live debugging
  • Design pattern explanations
  • Guidance on architecture & tooling
  • Career and freelancing advice

Say Hi! and Share Your Idea 👋

Got an idea or need help with Full-Stack Development, UI/UX, or a Code Review?
I'd love to hear from you! Let's turn your vision into reality - drop me a message, and I'll get back to you as soon as possible 🚀

Senior Software Engineer (Flutter)

A software engineer passionate about building scalable apps with clean code and great user experience.

Instagramhttps://www.instagram.com/_pintusingh28LinkedInhttps://www.linkedin.com/in/pintusingh28Githubhttps://github.com/pintusingh28Upworkhttps://www.upwork.com/freelancers/pintusingh28Mediumhttps://blog.pintusingh28.dev

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