Full-Stack Web Development Services
We build web applications end to end — interface, API, database, and the pipeline that ships them — and stay on to run them in production.
What is full-stack web development?
Full-stack web development is the design, build, and operation of a web application as one system: the browser interface, the server-side API, the database, and the deployment pipeline. Techroniqs builds these on React, Next.js, TypeScript, Node.js, NestJS, Ruby on Rails, and PostgreSQL. Across 16 production engagements this has included GreenPal, a US lawn-care marketplace serving more than 500,000 homeowners, and the Cresta.ai enterprise interface, which was held to a 99%+ uptime requirement.
Key takeaways
- Full-stack means one team owns the interface, the API, the data model, and the deploy pipeline — no hand-off gaps between vendors.
- Our default stack is React and Next.js on the front, Node.js/NestJS or Ruby on Rails on the back, and PostgreSQL for data.
- Rendering strategy is a per-route decision, not a per-project one. Marketing routes are statically generated; dashboards render on the client behind auth.
- Engagements start at $2,000 for a fixed-scope build, or $20–$35/hour on time and material.
- We have taken web platforms from first commit to production at 500,000-user scale, and inherited existing codebases mid-flight.
Who this is for
- Founders who need a first production version that will not have to be thrown away at Series A.
- Teams with an existing app that has outgrown its original architecture.
- Companies whose in-house team is strong on one side of the stack and needs the other side covered.
What you get
Every engagement produces these. Anything else is scoped explicitly rather than assumed.
- Architecture and data model
- Schema design, API contract, and the reasoning written down before code is written.
- Production web application
- Responsive interface, server-side API, and database, deployed and running.
- Authentication and permissions
- Session handling and role-based access — Clerk, OAuth, or a custom layer depending on the requirement.
- CI/CD pipeline
- Automated build, preview environments per branch, and one-command production deploys.
- Source code and ownership
- The repository is yours from the first commit, with commit history intact.
- Handover documentation
- Runbook, environment setup, and architecture notes so another team can pick it up.
Technology stack
Frontend
- React
- Next.js
- TypeScript
- Redux Toolkit
- RTK Query
- Tailwind CSS
Backend
- Node.js
- NestJS
- Ruby on Rails
- Flask
- FastAPI
- tRPC
Data
- PostgreSQL
- Redis
- Sequelize ORM
- Supabase
Platform
- AWS
- Vercel
- Cloudflare
Choosing a rendering strategy
Next.js can render the same application four different ways. Picking per route rather than per project is the single highest-leverage performance decision in a modern web build.
| Strategy | Rendered | Best for | Trade-off |
|---|---|---|---|
| Static (SSG) | At build time | Marketing pages, docs, case studies | Content is fixed until the next build |
| Incremental (ISR) | At build, then revalidated | Catalogues and listings that change hourly | Readers can see slightly stale data |
| Server (SSR) | Per request on the server | Personalised pages that must be indexable | Adds server cost and latency per view |
| Client (CSR) | In the browser after load | Dashboards behind authentication | Nothing meaningful for crawlers to index |
This site uses static generation for every public route and client rendering only inside the contact form.
How we build it
- Decide the data model before the first screen. Retrofitting a schema after the UI exists is the most expensive rework in web development.
- Put the API contract in writing early so frontend and backend can proceed in parallel — this is how the BankBarn engagement stayed unblocked across two teams.
- Render public routes on the server or at build time. A crawler that receives an empty div indexes nothing.
- Set a performance budget in the first week and enforce it in CI, rather than optimising after launch.
- Keep environment configuration out of the repository and in the platform.
Common mistakes
Building a single-page app for content that needs to rank
Search engines and AI crawlers receive an empty shell, so the content is never indexed or cited.
Instead: Server-render or statically generate anything public.
Choosing the stack before the requirements
The architecture ends up fighting the product for the rest of its life.
Instead: Write the data model and the three hardest user flows first, then pick tools that suit them.
Treating the database as an implementation detail
Schema migrations become the bottleneck on every future feature.
Instead: Design the schema deliberately and review it before building on top of it.
No preview environments
Every review happens on a developer machine, and bugs are found in production.
Instead: Deploy every branch to its own URL automatically.
Typical timeline
Ranges reflect engagements we have delivered. Scope, integration count, and decision speed on your side move these more than anything else.
1. Discovery and architecture
1–2 weeksData model, API contract, and a scoped build plan.
2. First working slice
2–4 weeksOne complete flow running end to end in a preview environment.
3. Build to launch
6–16 weeksFeature-complete application in production. Range depends on scope.
4. Operate and iterate
OngoingMonitoring, fixes, and new features on a monthly cadence.
Where we have done this
GreenPal
Marketplace500K+ User Marketplace
US-wide on-demand lawn-care marketplace serving 500,000+ homeowners, connecting them with local contractors.
500,000+ homeowners served
Read the case studyAdaptive Insurance
InsurTechPower outage insurance platform automating policy management, claims processing, and third-party verifications for US homeowners.
Read the case studyBankBarn
FinTechDigital banking platform with secure authentication, account management, transaction processing, and financial insights.
Read the case studyCresta.ai
AI / LLMConversation Intelligence
Enterprise SaaS applying generative AI and conversation intelligence to contact centers — providing real-time guidance for customer-facing teams.
99%+ uptime on enterprise AI UI
Read the case studyWhen this is the wrong choice
Stated plainly, because finding this out in month three costs you far more than reading it now.
- A bespoke web application is the wrong tool for a brochure site. If the requirement is five pages of content, a CMS or site builder costs less and ships sooner.
- We do not take on projects where the scope is a pixel-for-pixel copy of an existing product with no defined differentiator.
- Very large migrations of legacy .NET or Java monoliths sit outside the stack we work in day to day.
What to consider instead
- Site builder (Webflow, Framer)
- Content-only marketing sites with no custom logic or user accounts.
- In-house hire
- You need permanent capacity and can wait 3–6 months to recruit and onboard.
- Techroniqs dedicated team
- You need senior capacity now and want it embedded in your own process.
Frequently asked questions
What does full-stack web development actually include?
It covers the browser interface, the server-side API, the database schema, authentication, and the deployment pipeline. One team owns all five, which removes the hand-off gaps that appear when frontend and backend are contracted separately.
How much does a custom web application cost?
Fixed-scope projects start at $2,000. Time and material work is billed at $20–$35 per hour. A first production version of a data-driven application typically lands between those two models depending on how many integrations it needs.
How long does it take to build a web application?
Discovery and architecture take one to two weeks. A first complete user flow runs in a preview environment two to four weeks after that. Feature-complete production builds have ranged from six to sixteen weeks across our engagements, driven mostly by integration count rather than screen count.
Do you use React or Next.js?
Both. React is the component library; Next.js is the framework around it that adds routing, server rendering, and the build pipeline. We use Next.js for anything with public, indexable pages, and plain React inside applications that sit entirely behind a login.
Can you work on an existing codebase?
Yes. Several engagements began mid-flight, including GreenPal, where we added features to an established Ruby on Rails and React platform already serving more than 500,000 homeowners.
Who owns the source code?
You do, from the first commit. The repository is yours with full history, and handover documentation is part of every engagement.
Do you provide support after launch?
Yes, on a monthly retainer. Several platforms we built remain under active maintenance, including Stax.fun and the react-text-format open-source package.
Related
Talk to an engineer about web development
A 30-minute call with someone who will be writing the code. We will tell you if we are the wrong fit, and what we would do instead.