TESARK is an AI-powered innovation hub and software development company founded in 2013. We specialize in AI integration, custom software development, and digital transformation for enterprises worldwide.

What AI services does TESARK offer?

TESARK offers custom LLM integration, RAG (Retrieval Augmented Generation) systems, custom AI agent development, on-premise localized AI deployment, AI-powered chatbots, and agentic AI systems.

Where is TESARK located?

TESARK is headquartered in Chennai, Tamil Nadu, India, and serves clients globally across North America, Europe, Middle East, and Asia-Pacific.

What technologies does TESARK work with?

TESARK works with OpenAI, Anthropic Claude, Google Gemini, LLaMA, React, Next.js, Angular, Node.js, Python, AWS, GCP, Azure, and other modern technologies.

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Digital Product Engineering

We don't just build apps; we engineer scalable digital legacies with 10+ years of technical excellence in web, mobile, and cloud-native systems.

Scalability, Security, and Speed

At TESARK, we treat software as a high-performance engine. Our engineering processes are designed to handle the complexities of modern digital products, ensuring your application is ready for millions of users from day one. We focus on clean architecture, test-driven development, and automated deployment pipelines to ensure long-term stability.

Core Capabilities

Custom Web Systems: Robust, cloud-native architectures using React, Next.js, and Node.js designed for high concurrence and low latency.
Native Mobile Apps: High-fidelity iOS and Android experiences built with React Native and Flutter for maximum reach and performance.
Enterprise Modernization: Refactoring legacy systems into modern, microservices-based architectures without disrupting your ongoing business operations.
DevOps & Cloud Strategy: Automated CI/CD pipelines and infrastructure-as-code (Kubernetes, AWS) to accelerate your deployment cycles.

Frequently Asked Questions

Do you offer full-cycle product development?

Yes, we handle everything from initial architecture and UI/UX design to development, testing, and long-term cloud maintenance.

Which tech stack do you recommend for scaling?

For web, we typically recommend Next.js and Node.js/Go. For mobile, React Native or Flutter are excellent for most business use cases.

How do you handle project security?

We integrate security early (DevSecOps), with automated code scanning, dependency audits, and secure infrastructure configurations by default.

Get a Technical Consultation

ENGINEERING_STACK

React

Next.js

TypeScript

Node.js

Bun

React Native

Flutter

Swift

Strategic Use Cases

SaaS: Real-time Analytics

Scenario: A data platform needed to process millions of events per second with sub-second dashboard updates.

Outcome: Engineered a Go-based streaming pipeline and a Next.js frontend, achieving 99.99% uptime and 10x faster data processing.

E-commerce: Global Scaling

Scenario: A scaling retailer faced frequent crashes during peak sales and high latency for international users.

Outcome: Modernized their backend to a Node.js microservices architecture on AWS, resulting in 0% downtime and a 40% increase in global sales.

Fintech: Secure Mobile Wallet

Scenario: An emerging fintech required a high-security mobile application with complex biometric and API integrations.

Outcome: Built a native Swift and Kotlin experience with encrypted local storage and secure banking bridges, passing all security audits on first attempt.