Custom Web Application Development
Interfaces, workflows and data built around your business.
DIGITAL PRODUCT ENGINEERING
Full-Stack Web Development Services
Custom web applications, from user interface to database.
Custom web appsSaaS platformsOngoing support
FULL-STACK DEVELOPMENT SERVICES
Everything your web app needs.
Build, connect and improve every part of your product.
SaaS Development
Accounts, subscriptions and product workflows in one platform.
Frontend Development
Responsive interfaces with reusable components and accessible interactions.
Backend & API Development
Connect business logic, databases and external services.
Web App Modernization
Improve existing applications through a staged migration.
Maintenance & Optimization
Resolve issues, tune performance and evolve features.
TECHNOLOGY CHOICESA stack shaped around
A stack shaped around
your product.
Tools selected for your needs and existing systems.
React · Next.js
TypeScript
Node.js · NestJS
PostgreSQL · Redis
Playwright · API tests
Docker · CI/CD
WHAT WE BUILD
Built around real workflows.
SaaS Products
Subscriptions, workspaces and account management.
Customer Portals
Documents, requests and updates in one place.
Marketplaces
Listings, transactions and seller tools.
Internal Tools
Dashboards, approvals and operational workflows.
WORK WITH TENSORBLUEHire Full-Stack
Discuss your team ↗Hire Full-Stack
Developers
Bring the right support into your next stage.
Dedicated developers
Extend your product and engineering team.
Complete project delivery
Take a defined scope from design to launch.
Existing application support
Audit, modernize or improve your web application.
START YOUR NEXT CHAPTERLet’s build your next
Let’s build your next
web application.
Bring us your idea, roadmap or existing product.
HOW WE WORKA clear path from
A clear path from
brief to build.
Discover
Define users, workflows, integrations and priorities.
Design
Plan journeys, architecture and data models.
Build & validate
Develop features and test important user flows.
Launch & improve
Deploy, monitor and prioritize the next improvements.
Regular reviewsClear documentationOngoing support
QUESTIONS, ANSWEREDFull-stack
Have another question? Let’s talk ↗Full-stack
development FAQs.
What does full-stack development include?
The user interface, backend logic, databases, integrations and deployment.
Can you work with our existing application?
Start with an assessment, then plan fixes, extensions or staged modernization.
Can you build a SaaS platform?
Yes. Define the accounts, permissions, billing and workflows your product needs.
How much does a web application cost?
Features, integrations, data complexity and operational requirements shape the estimate.
QUESTIONS, ANSWEREDFull-stack
Have another question? Let’s talk ↗Full-stack
development FAQs.
What does full-stack development include?
The user interface, backend logic, databases, integrations and deployment.
Can you work with our existing application?
Start with an assessment, then plan fixes, extensions or staged modernization.
Can you build a SaaS platform?
Yes. Define the accounts, permissions, billing and workflows your product needs.
How much does a web application cost?
Features, integrations, data complexity and operational requirements shape the estimate.
WORK WITH TENSORBLUEHire Full-Stack
Discuss your team ↗Hire Full-Stack
Developers
Bring the right support into your next stage.
Dedicated developers
Extend your product and engineering team.
Complete project delivery
Take a defined scope from design to launch.
Existing application support
Audit, modernize or improve your web application.
Frequently Asked Questions
How much does custom web app development cost?
Custom web apps from TensorBlue start around $10K for a focused MVP and typically run $25K–$120K for production SaaS or enterprise web apps. Final cost depends on auth, integrations, real-time features, and infra scale.
How long does it take to build a production web app?
A focused MVP ships in 4–6 weeks. A production SaaS with auth, payments, admin, and 2–3 integrations typically takes 8–14 weeks. We work in 1-week sprints with a working build at the end of every sprint.
What stack do you use?
We default to Next.js + TypeScript on the front end, Node.js / Python on the backend, Postgres, and Redis. We deploy on Vercel, AWS, or your existing cloud, and we are stack-agnostic when client constraints require it.
Do you provide ongoing support after launch?
Yes. Every project includes 3 months of bug-fix support, and most clients move onto a fixed monthly retainer covering features, performance work, and on-call.