Sumer Kumar - Full Stack Developer & Backend Specialist

I am a Full Stack Developer, Backend Architect, and SEO Specialist specializing in MERN & PEAN stacks. I build scalable web applications, robust backend microservices, and SEO-optimized digital solutions that transform business visions into high-performance realities.

Key Achievements

Built scalable backend microservices using Node.js and PostgreSQL for production systems.

Developed responsive websites and admin panels for efficient content and data management.

Integrated and worked with sports data provider APIs along with tools like GCP and JIRA.

Delivered end-to-end web solutions as a freelancer, from frontend UI to backend integration.

Core Technologies

ReactNext.jsNode.jsPostgreSQLMongoDBAngularTypeScriptREST APIsAWS
Available for Global Projects
Driven by curiosity,
defined by impact.

I transform complex problems into elegant digital solutions. Based in Sanchore, Rajasthan (343041), India, strictly delivering measurable value.

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4+Years Experience
10+Projects Completed
100%Client Satisfaction
Engagement

Flexible Collaboration

Tailored frameworks designed for speed and scalability.

Long Term

Full-Time Role

Seamless integration with your engineering team to drive sustained product evolution. Ideal for established companies needing dedicated resources.

40 hours per week dedicated focus
Full product lifecycle ownership
Long-term architectural strategy
Mentorship & code reviews
Hire Full-Time→
Flexible

Contract / Freelance

Project-based engagement for specific deliverables, MVPs, or features. Perfect for startups and agencies requiring rapid execution.

Flexible scope & duration
Milestone-driven delivery
Rapid prototyping capabilities
No long-term overhead
Hire Contract→
Tech Stack

Technical Arsenal

Ecosystems selected for performance, security, and scalability.

Frontend & Mobile Development

Architecting responsive, high-fidelity web interfaces and cross-platform native applications.

ReactNext.jsReact NativeAngular

Backend & E-commerce Solutions

Developing secure, scalable server-side systems and custom e-commerce platforms.

Node.jsShopifyZoho CommercePostgreSQL

SEO & Performance Optimization

Optimizing for Core Web Vitals, search visibility, and lightning-fast load times.

Technical SEOSchema.orgSpeed OptimizationAnalytics

FAQ

Common questions about building together.

What is your primary technology stack?
I specialize in the MERN Stack (MongoDB, Express, React, Node.js) and Next.js for modern web applications. Additionally, I provide mobile development using React Native and e-commerce solutions via Shopify and Zoho Commerce.
Can you assist with existing codebases?
Yes, I offer specialized services in legacy code refactoring, performance optimization, and migration to modern frameworks. I can audit your current codebase and implement a strategic roadmap for modernization.
What is your typical project timeline?
Project timelines vary based on scope. A minimum viable product typically takes 2-4 weeks, while complex enterprise platforms may require 3-6 months. I follow agile methodologies to demonstrate progress consistently.
Do you provide post-launch support and maintenance?
Yes, I offer flexible maintenance packages to ensure your application remains secure, updated, and performs optimally after deployment.
How do you manage project communication?
Transparency is fundamental. I utilize tools like Slack, Jira, or Trello for updates and schedule regular synchronization calls to maintain alignment on objectives and deliverables.

Ready to build something extraordinary?

From concept to code, I'm here to translate your vision into a high-performance digital reality.

* Email or Phone Number is required

codewithsumer@gmail.com+91 9660244912
Sanchore, Rajasthan (343041), India
Remote & Global Services