We
web applications that last.
From scalable Next.js platforms and complex legacy migrations to rescuing fragile AI-generated prototypes, we turn web technology into high-performing, maintainable software.
Private keys detected in browser bundle; refactored to Next.js Server Actions.
Unprotected tables accessible via public anon key; hardened with row-level security.
Supabase auth session middleware normalized for SSR & edge cookies.
Web systems rarely fail because of a single bug.
Sometimes the code is unfinished. Sometimes the infrastructure is fragile. Sometimes the website is slow, outdated, or impossible to maintain. We help you isolate the root cause, fix the foundation, and move forward with confidence.
Your AI-generated app is stuck at 80%.
You built an MVP with Cursor, Bolt, Lovable, or Claude Code, but you hit a wall with broken OAuth cookies, client secret leaks, and database deadlock bugs.
Your website is slow and losing conversions.
Years of plugin bloat, sluggish database queries, and poor mobile scores cause high bounce rates and trigger Google search ranking penalties.
Your server, database, or domain went offline.
An expired SSL certificate, unmonitored server memory leak, DNS misconfiguration, or crashed database has taken your critical business revenue offline.
Your deployment process is fragile and manual.
Deploying code involves nervous midnight releases, unexpected downtime, manual SSH commands, and missing automated rollback safeguards.
Your product works — but only locally.
Environment drift, missing database seeds, unhandled environment variables, and Docker build failures keep your application stuck on a developer's machine.
Your existing system needs to modernize.
Your business has outgrown its legacy monolithic PHP or no-code builder and needs a modern, scalable TypeScript & Next.js architecture.
Disciplined engineering across the complete software lifecycle.
From initial architecture and product development to complex migrations, security hardening, and 24/7 reliability, our senior engineers solve tough technical problems with zero lock-in.
Your AI-built app is 80% done.
We engineer the 20% that ships.
AI coding tools like Cursor, Bolt, Lovable, Replit, and Claude Code accelerate prototypes, but generated code often contains dangerous secret exposures, fragile state loops, and missing database security. We step in, audit the codebase, eliminate vulnerabilities, and launch production-grade software.
// ✅ HARDENED PRODUCTION TYPESCRIPT (app/actions/checkout.ts)
"use server";
import { auth } from "@/lib/auth";
import { stripe } from "@/lib/stripe";
import { db } from "@/lib/db";
import { z } from "zod";
const CheckoutSchema = z.object({
planId: z.string().uuid(),
});
export async function createCheckoutSession(formData: unknown) {
const session = await auth();
if (!session?.user?.id) throw new Error("Unauthorized");
const { planId } = CheckoutSchema.parse(formData);
// ✅ Server-side execution, encrypted secrets & atomic DB record
const checkout = await stripe.checkout.sessions.create({
customer: session.user.stripeCustomerId,
line_items: [{ price: planId, quantity: 1 }],
mode: "subscription",
success_url: `${process.env.APP_URL}/dashboard?success=true`,
});
return { url: checkout.url };
}Your existing website can become an asset again.
We modernize websites and applications without losing sight of your business, content, users, or search visibility. No reckless rewrites — only disciplined engineering.
Edge-Cached Next.js 15 + Sanity
Sub-second edge delivery globally (<0.7s LCP), zero layout shift, seamless visual content editor for marketing, and 99.99% uptime through Black Friday traffic surges.
From Search Penalty to Top Tier Speed
Legacy Monolith (Before)
LCP: 4.8s • CLS: 0.42 • High Drop-Off
Next.js 15 Edge (After)
LCP: 0.68s • CLS: 0.00 • 100% Passed
Replacing un-cached database queries and render-blocking scripts with edge-cached Next.js pages.
Decoupling content management from presentation for better security, speed, and marketing agility.
Replacing nerve-wracking FTP/SSH uploads with reproducible Docker pipelines and automated tests.
Empowering marketing teams with Sanity or Strapi without risking site crashes or developer bottlenecks.
Fixing layout shifts and broken mobile checkout flows to maximize search visibility and conversion.
Structured TypeScript components with full type safety, comprehensive docs, and clean code boundaries.
Zero Downtime. 100% SEO Preservation.
We handle the critical details that others overlook: meticulous 301 redirect mapping, password hashing compatibility bridges, DNS safeguarding, and staging rehearsals before live cutover.
Engineering work that moves businesses forward.
Real architectures, real technical constraints, and measurable business improvements across SaaS platforms, e-commerce migrations, and AI code rescues.
A clear process from uncertainty to production.
No ambiguous black boxes or endless scope creep. We operate with transparent technical roadmaps, measurable milestones, and direct senior communication.
1. Diagnostic Audit: Diagnosis & Discovery
We forensic-audit your codebase, dependencies, data models, infrastructure constraints, and identify the root bottleneck with zero guesswork.
Non-destructive read-only audit with NDA protection.
Something is broken right now?
Website down? SSL expired? Deployment failed? DNS or database locked up? Don't panic. Our senior engineers step in immediately, triage root causes, and restore uptime.
Keep your digital infrastructure healthy.
True maintenance is proactive engineering support — not just clicking 'update'. We patch dependencies, monitor server memory, verify backups, and fix bugs before users notice.
Essential
Core security, monitoring, and uptime coverage for production websites and marketing assets.
Included in Plan:
- 24/7 uptime monitoring with instant incident alerts
- Monthly security & dependency vulnerability audits
- SSL certificate & domain expiration tracking
- Automated weekly database & asset backups
- 1 hour of monthly technical support & minor fixes
- Monthly system health & patch summary report
Plan Boundaries:
• 1 production website or web application
• Standard email support — 48h response window
• Excludes major feature development
Business
Active engineering stewardship, performance monitoring, and priority support for growing web applications.
Included in Plan:
- Everything included in Essential
- Bi-weekly dependency updates & staging patch releases
- Real-time error telemetry & crash monitoring
- Core Web Vitals & performance trend monitoring
- 3 hours of dedicated monthly engineering & bug fixes
- Priority triage for unexpected application issues
- Direct engineer communication channel
Plan Boundaries:
• Up to 2 production applications or microservices
• Priority response within 24 business hours
• Architecture advisory included
Critical
Comprehensive cloud, server, and application management for mission-critical platforms where downtime is not acceptable.
Included in Plan:
- Everything included in Business
- Full cloud & server infrastructure monitoring
- CI/CD pipeline maintenance & deployment assistance
- Quarterly security & vulnerability audit
- 6 hours of dedicated monthly engineering & enhancements
- Disaster recovery drill & automated restore validation
- Private Slack / Discord engineering channel
- Priority emergency response escalation
Plan Boundaries:
• Up to 4 applications or cloud infrastructure topologies
• Same-day priority response — under 6 hours
• Dedicated senior lead engineer assigned
Need dedicated monthly engineering capacity or custom SLAs?
We provide tailored 20h to 80h+ monthly engineering pods for scaling SaaS platforms and enterprise systems.
Engineered with proven, modern technologies.
We work with proven, open tools that maximize developer velocity, security, and long-term maintainability. No proprietary lock-in, no abandoned frameworks.
Trusted by founders and engineering leaders.
Direct feedback from CTOs, product managers, and non-technical founders who trusted us with their core web systems.
“Our tracking dashboard was unusable on mobile 3G connections. JoinAffix refactored our state management and bundle payload, cutting initial JavaScript by 65%.”
“We generated our cross-border remittance MVP using Cursor and Supabase, but our JWT auth broke right before regulator demo day. JoinAffix joined our emergency channel in 30 minutes, sanitized our API boundaries, and deployed a rock-solid Next.js 15 app in 5 days with zero security red flags.”
“Handling bilingual Arabic/English RTL layouts with real-time telematics dispatch is notoriously difficult. JoinAffix delivered a flawless Next.js system with sub-100ms Redis updates across our 400 delivery trucks.”
“JoinAffix replaced our brittle 8-second refresh dispatch tool with an instantaneous WebSocket-driven Next.js application. Our dispatchers haven't experienced a single race condition since launch, and our load throughput jumped over 4x.”
“Rendering 100,000 spatial parcel boundaries smoothly in a web browser seemed impossible until JoinAffix engineered custom vector tile pipelines and PostGIS indexes. It saves each of our analysts over 10 hours every week.”
“We needed a WebGL geospatial mapping viewer capable of rendering 50,000 polygon overlays without stuttering. JoinAffix engineered custom worker threads and canvas shaders that run at a locked 60 FPS.”
Have a web problem worth solving?
Choose your path below. Whether you are building from scratch or need an urgent engineering rescue, let's talk with zero sales fluff.
Starting a New Project or Rebuild
For founders and product teams needing custom Next.js engineering, legacy platform migrations, or performance overhauls.
AI Code Rescue or Urgent Outage
For development teams with broken AI prototypes, critical security leaks, crashed production servers, or failed deployment pipelines.