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Daillac / WEB APPLICATION DEVELOPMENT

BUILD FAST,GROW WITHOUT BREAKING.

Web applications, client portals, and business systems that are fast, secure, and ready to scale.

Technical Diagnostic./view-stack
Custom applicationsYou own the code · No lock-inDevOps, CI/CD, and monitoring
daillac@build:~/client
// region:quebec.web-dev

Custom web development in Montreal and across the North Shore

We build custom web applications in Montreal and across the North Shore: high-performance websites, client portals, intranets, custom CRM/ERP, e-commerce, real-time systems, geolocation, and telemetry. Every project is designed for performance, security, technical SEO, responsive UX, and continuous evolution with DevOps and CI/CD.

Montreal web developmentCustom web applicationNext.jsReactWeb performanceDevOps CI/CDWeb securityTechnical SEO

// stack.tsx

Our default stack

Opinionated choices, backed by 10+ years of delivery. Adaptable to constraints.

// errors.log

Why change?

// config.json

YOUR PRIORITY?

Developer optimizing the performance of a web application
Recommended Approach

Speed & Performance

Core Web Vitals optimization (LCP, CLS), caching, images, server rendering, and asset delivery for a fast desktop, tablet, and mobile experience.

Key Deliverables for this objective:
Performance audit
Core Web Vitals budget
Rendering optimization
Cache and media plan
Cross-device testing
Metric monitoring

// modules

Our Modules

01Custom web application
02Fast SEO-ready website
03Client portal / intranet
04Custom CRM / ERP
05High-performance e-commerce
06Real-time web system
07Geolocation and telemetry
08CI/CD, maintenance, and scaling

// pipeline.sh

Project Timeline

stage_01
01

Discovery

Workshops, business goals, technical constraints, and a prioritized scope.

stage_02
02

Architecture

Stack, data model, security, hosting, and integration plan.

stage_03
03

Design

UX, UI, prototyping, and validation of critical user journeys with you.

stage_04
04

Build

Iterative development, testing, CI/CD, and ongoing code reviews.

stage_05
05

Launch

Go-live, training, monitoring, and a clear evolution roadmap.

// faq.md

Technical FAQ

How long for a website or application?+
A solid website often takes 4 to 8 weeks. A web application, client portal, or business system is usually closer to 8 to 16 weeks depending on integrations.
Do I own the code?+
Yes, 100%. No lock-in.
Hosting on your side or the client's?+
Your choice. We deploy to Vercel/Fly/AWS based on your constraints. The code remains your property and is portable.
What's your coverage for a critical bug?+
4h SLA on business days for active maintenance contracts. We document, monitor, and alert.
Which internal teams do you work with?+
PMs, designers, developers, marketing, data, or IT teams. We integrate into your processes (Linear, Notion, Slack, GitHub, Jira) without imposing a heavy method.

Complementary Services

Integrate security into your digital ecosystem

IT SECURITYIntegrate security from design with our DevSecOps approach

READY TO ACCELERATE?
PROJECT.

We build custom web applications in Montreal and across the North Shore: high-performance websites, client portals, intranets, custom CRM/ERP, e-commerce, real-time systems, geolocation, and telemetry. Every project is designed for performance, security, technical SEO, responsive UX, and continuous evolution with DevOps and CI/CD.

Launch the Build