Web Development
Platforms built to scale.
Full-stack web applications with modern frameworks. From SaaS dashboards to e-commerce platforms — we ship fast, then iterate faster.
Next.js Astro PostgreSQL REST & GraphQL Stripe Auth
Q3 2026 Cohort: Open for 2 New Projects
We build
world-class
software that converts.
From high-scale Web Platforms & AI Copilots to React Native mobile apps. We architect, code, and deploy production systems backed by modern databases like Neon PostgreSQL.
40+
Products Shipped
2 Weeks
Average MVP Delivery
99.99%
System Reliability
4.9 / 5.0
Client Satisfaction
renix.architecture.ts
import { renix } from '@renix/core';
import { neon } from '@neondatabase/serverless';
const project = await renix.build({
database: neon(env.DATABASE_URL),
stack: ['Next.js', 'AI Agents', 'React Native'],
quality: 'Production-Grade',
speed: '2-4 weeks to MVP',
});
await project.shipToProduction();
Zero boilerplate · Full IP ownership · Scalable
Our Expertise
Everything you need
to ship a real product.
We cover the full stack — from design and architecture to deployment and monitoring. You get one team, one point of contact, one product.
AI & Automation
Intelligence, wired in.
LLM integrations, RAG pipelines, custom AI agents, and computer vision — we build AI features that actually improve your product.
OpenAI LangChain Vector DBs Fine-tuning Agents MLOps
Mobile Apps
One codebase, every device.
Cross-platform iOS and Android apps with React Native. Native performance, smooth UX, and a single team maintaining it all.
React Native Expo iOS Android Push Notifications Offline
40+
Products shipped
98%
Client retention
< 48h
Discovery turnaround
3 yrs
Average engagement
Selected Case Studies
Proven systems built
for founders and scale-ups.
Explore how we helped our clients engineer mission-critical platforms with modern architectures.
Average Client ROI 3.8x in 6 Months
Web SaaS & FintechNovaPay Fintech Inc.
NovaPay Global
Real-time multi-currency settlement engine with sub-second webhook orchestration.
$4.2M+
Monthly GMV Processed
14ms
Average Query Latency
99.99%
Production Uptime
Next.js 15Neon PostgresStripe ConnectEdge RuntimeTailwindCSS
AI & AutomationHealthSync Medical AI
HealthSync AI
HIPAA-compliant medical consultation copilot and RAG knowledge retrieval.
82%
Reduction in Note Taking
45,000+
Consultations Processed
0.01%
Hallucination Rate
OpenAI GPT-4opgvectorNeon DatabaseFastAPILangChain
Mobile AppTradeStack Securities
TradeStack Mobile
Ultra-low latency mobile trading app with real-time biometric order placement.
180k+
Active Mobile Traders
4.9★
App Store Rating
60 FPS
Constant Chart Render
React NativeExpoSkia ChartsWebSocketsBiometrics
AI & AutomationNexus Systems
Nexus Intelligence
Multi-agent autonomous legal & compliance contract analysis platform.
10x
Faster Contract Review
500k+
Pages Analyzed
100%
Audit Trail Coverage
LangGraphNeon PostgresPythonNext.jsDocker
Interactive Cost Calculator
Scope & Price Your Build
transparently before we talk.
Select your project parameters below to get an instant, data-backed estimate of timeline, architecture, and investment.
1Choose Project Scope
2Select Architecture Modules & Features
Live Scope Estimate
Realistic delivery breakdown
Estimated Investment
$11,700 - $15,795
Includes architecture, full source code, and 30 days post-launch warranty.
Estimated Timeline
6 Weeks
Architecture Stack
Next.js + Neon DB
Included in Deliverable:
Clean modular TypeScript codebase & full IP ownership
Neon Serverless Postgres schema & indexing
Staging environment access with weekly sprint demos
Battle-Tested Architecture
Modern Stack.
Zero Legacy Debt.
We don't experiment on your dime. We build on the most performant, battle-tested modern tools available today.
Frontend & Mobile
Ultra-fast, accessible interfaces built for 60fps smoothness and SEO supremacy.
Next.js 15
App Router & React Server Components
Astro
Content & High-Performance Static/SSR Sites
React Native & Expo
Cross-platform native iOS & Android apps
Tailwind CSS
Modular, responsive design system design tokens
Databases & Storage
Serverless, distributed, and vector-enabled storage for maximum reliability.
Neon PostgreSQL
Serverless Postgres with autoscaling & branching
pgvector
High-dimensional vector embeddings for AI RAG
Redis / Upstash
Low-latency caching & distributed rate-limiting
Cloudflare R2 / S3
Edge-distributed object & media storage
AI & LLM Orchestration
Production-ready AI agents, retrieval pipelines, and fine-tuned models.
LangChain & LangGraph
Multi-agent coordination & state machines
OpenAI & Anthropic
GPT-4o, Claude 3.5 Sonnet frontier models
Ollama / vLLM
Self-hosted private models for high compliance
Unstructured / PyPDF
High-fidelity enterprise document parsers
Cloud, APIs & Payments
Zero-maintenance edge infrastructure with enterprise-grade security.
Vercel & AWS
Global edge CDN & serverless compute
Stripe Connect
Global subscriptions, invoices & marketplace payouts
Clerk / NextAuth
SOC2-ready authentication, SSO & passkeys
Docker & GitHub Actions
Automated CI/CD pipelines & container orchestration
How We Work
From idea to launch,
you're with us at every step.
A transparent, milestone-driven process so you always know what's happening, what's next, and what you're paying for.
Phase 01 3–5 days
Discovery & Strategy
We start by deeply understanding your idea, audience, and constraints. You get a clear product roadmap and technical architecture doc — before a single line of code.
Product brief
Architecture plan
Timeline & pricing
Phase 02 1–2 weeks
Design & Prototype
High-fidelity mockups of core flows, reviewed with you in real time. Interaction patterns established, design system locked, and stakeholder buy-in secured.
Figma mockups
Interactive prototype
Design system
Phase 03 4–12 weeks
Build & Iterate
Two-week sprints with demo calls. You see real progress each cycle. Staging environment from day one so you can test alongside us.
Sprint demos
Staging access
Weekly reports
Phase 04 Ongoing
Launch & Support
Deployment to production, monitoring setup, and a handoff session so your team owns the product. Post-launch support included for 30 days.
Production deploy
Docs & training
30-day support
Ready to start? Discovery calls are free and commitment-free.
Start with DiscoveryClient Stories
Don't take
our word for it.
Here's what founders and product leaders say after shipping with us.
"Renix took our chaotic idea and turned it into a polished SaaS in under 10 weeks. Their technical depth is unmatched — they think like co-founders, not contractors."
SC
Sarah Chen
Co-founder & CEO · NovaPay
"We've worked with five dev agencies. Renix is the first one that pushed back on our assumptions and made the product better because of it. Worth every penny."
MW
Marcus Webb
Head of Product · HealthSync
"The AI pipeline they built cut our manual processing time by 80%. Full ROI in six weeks. I wish we'd found them two years earlier."
PN
Priya Nair
CTO · TradeStack
FAQ
Questions
answered.
Still not sure? Book a free 30-minute call — we're happy to talk through your specific situation, no pressure.
Ask us directlyHow much does a typical project cost?
Project scope and complexity vary widely, but here's our honest range: MVPs typically fall between $12K–$40K. Larger platforms with AI features or mobile apps can run $50K–$120K+. After a free discovery call, we give you a detailed estimate — no vague 'it depends' answers.
How long does it take to build my product?
A focused MVP web app takes 6–10 weeks from discovery to launch. Complex platforms with AI integrations or mobile can take 12–20 weeks. Every project starts with a 3–5 day discovery phase that produces a precise timeline before a single line of code is written.
Do you work with non-technical founders?
Most of our clients are. We handle all technical decisions and explain the tradeoffs in plain language. You'll always know what's being built and why — without needing to know how. Our process is designed around your business goals, not our tech stack preferences.
Who owns the code and IP after the project?
You do. 100%. Every engagement includes a contract that transfers full IP and source code ownership to you upon final payment. No vendor lock-in, no licence fees, no 'our platform only' nonsense. We can also help you onboard an in-house team at the end.
Can you take over an existing codebase?
Yes, and we're honest about what we find. We do a thorough code audit before committing. If the codebase is salvageable we'll refactor; if a rebuild is the better call, we'll say so with the numbers to back it up. The audit is free on projects we take on.
What happens after launch?
All projects include 30 days of post-launch support for bugs and minor tweaks. After that, we offer monthly retainer packages for ongoing development, feature work, and monitoring — or we hand off cleanly to your in-house team with full documentation.
Do you sign NDAs?
Yes, before any detailed discovery conversation. We take confidentiality seriously — your idea and business information are protected from day one. Mutual NDAs are standard practice for us.
Engineering Newsletter
Stay ahead of modern web & AI architecture.
No spam. Just actionable breakdowns of serverless Postgres, LLM agent pipelines, and high-performance frontend patterns twice a month.
Direct Discovery Call
Let's talk architecture,
timeline, and your vision.
No sales reps or gatekeepers. You will speak directly with a senior engineer who will evaluate your architecture, answer questions honestly, and provide a clear roadmap.
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