DIGITAL SOLUTIONS & WEB DEVELOPMENT

Precision digital services, tailored to your genuine business goals

From high-end showcase websites to comprehensive custom business software, DevSupAi crafts lean, secure, and lightning-fast web architectures without generic templates or captive subscriptions.

100% Proprietary Code
Zero captive subscriptions
Refined Design & UX
Seamless mobile & desktop flow
4 Core Pillars
Custom Solutions & Modules
Dedicated Expert
Founder & Developer
Direct access:1. The 4 Core Pillars2. Business Solutions & Modules3. Methodology4. FAQ
MY 4 CORE AREAS OF EXPERTISE

4 Core Pillars Built to Meet Every Digital Challenge

Rather than applying a one-size-fits-all generic solution, I structure my engineering around 4 distinct specialties.

Pillar 01Tailored digital showcases for SMEs, contractors and businesses

Showcase Websites & Custom Portals

Ultra-fast, elegant websites crafted without heavy templates or captive subscriptions. Every page highlights your expertise and guides visitors towards qualified quote inquiries.

Included Deliverables & Commitments:
Exclusive bespoke design tailored to your brand identity
Lean architecture & optimized fast load times (Core Web Vitals)
Initial technical SEO optimization & Google indexing
100% proprietary code with zero captive subscriptions
Technologies:React 19TypeScriptTailwind CSSSSG
Indicative pricing:From €950 (Pack Présence) • From €1,850 (Pack Croissance)
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Pillar 02Online stores, Click & Collect and recurring subscription platforms

E-Commerce & SaaS Platforms (0% Commission)

Lightning-fast custom online stores with zero sales commission, or complete multi-tenant SaaS platforms engineered with automated recurring Stripe Billing and self-service account management.

Included Deliverables & Commitments:
Direct secure payments via Stripe & PayPal (0% sales commission)
Dynamic product catalog with variants and Click & Collect module
Multi-tenant cloud architecture with automated recurring billing
Frictionless checkout funnels loaded in under 0.8 second
Technologies:Stripe APIReact 19TypeScriptPostgreSQL
Indicative pricing:From €2,600 (Pack E-Commerce) • From €3,200 (Pack SaaS)
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Pillar 03Progressive Web Apps & custom operational management tools

Web Applications & Business Software

Dynamic web applications and bespoke internal tools engineered to replace messy spreadsheets: equipment tracking, job site scheduling, touchscreen digital signatures, and automated compliant PDF generation.

Included Deliverables & Commitments:
Frictionless install directly to home screen (Progressive Web App)
Custom tracking for equipment, job sites, and field operations
Touchscreen digital signature module & automated PDF engine
Zero per-user monthly seat fees: your company owns the tool
Technologies:React 19PostgreSQLTypeScriptPWA
Indicative pricing:From €3,200 or proposal based on €400 / day rate
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Pillar 04Proactive technical support, Lighthouse 100/100 and local visibility

Maintenance, Performance & SEO

Preventive and corrective technical maintenance contracts, comprehensive Core Web Vitals speed remediation (100/100 Lighthouse), and active Google Maps local SEO management to maximize qualified leads.

Included Deliverables & Commitments:
Automated cloud backups, uptime monitoring, and security hardening
Full Core Web Vitals audit & code remediation (100/100 Lighthouse)
Schema.org structured data & generative AI engine optimization (GEO)
Monthly active optimization of your local Google Business Profile
Technologies:LighthouseSearch ConsoleSchema.orgResponsive Support
Indicative pricing:From €29 / month (Google Maps) • Rate based on €400 / day
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TURNKEY SOLUTIONS & CUSTOM MODULES

Find the Ideal Web Solution & Features for Your Business

Explore industry-tailored solutions or search for specific features (Stripe, online booking, dynamic quotes, local SEO) for your project.

Filter by industry:
12 featured solutions displayed (47 total available)
Pillarvitrines

Showcase Website Development

Modern, ultra-fast custom showcase websites engineered to attract qualified leads and showcase your brand.

Local SEOResponsive DesignReact & TailwindHigh Speed
Explore website creation
Request a quote for this need
Turnkey Solutionvitrines

Trades & Contractors Websites

Custom digital showcases for builders, electricians, plumbers, and carpenters with project portfolios and rapid quote forms.

Local VisibilityRapid Quote FormWork Gallery
Explore contractor solution
Request a quote for this need
Pillarvitrines

High-Converting Landing Pages

Targeted conversion-focused landing pages engineered for Google Ads and Meta Ads campaigns to maximize ROI.

Conversion FunnelInstant LoadingCompelling CTA
Explore website creation
Request a quote for this need
Pillarecommerce

Custom E-Commerce Store Development

High-performance, secure online stores with product catalog management, multiple payment gateways, and order tracking.

Stripe & Card PaymentsInventory ManagementClick & CollectFrictionless Cart
Explore e-commerce solution
Request a quote for this need
Pillarecommerce

Shopping Cart & Checkout Systems

Optimized shopping cart workflows with automated shipping calculations, coupon codes, and anti-abandonment checkout.

Frictionless CheckoutDiscount CodesSSL Secure Payments
Explore e-commerce solution
Request a quote for this need
Pillarecommerce

Online Ordering & Wholesale Systems

Streamlined online order systems for wholesalers, caterers, restaurants, and retail distributors.

Express OrdersAutomated InvoicesReal-Time Alerts
Explore e-commerce solution
Request a quote for this need
Pillarapps

Mobile & PWA App Development (Android)

Modern mobile apps built for seamless user experience, offline functionality, and targeted push notifications.

Android & PWAGoogle PlayPush NotificationsOffline First
Explore web applications
Request a quote for this need
Pillarapps

Custom Management & Scheduling Software

Software solutions for tracking team schedules, job site progress, human resources, and pre-accounting exports.

Schedule TrackingExcel & PDF ExportTeam Management
Explore business applications
Request a quote for this need
Pillarapps

Industry-Specific Business Tools

Technical calculators, automated legal/business document generators, and verification tools tailored to your niche.

Complex AlgorithmsAuto PDF EngineTime Saver
Explore business applications
Request a quote for this need
Pillarmaintenance

Website Technical Maintenance & Support

Preventive and corrective maintenance contracts: automated cloud backups, security patches, and 24/7 uptime monitoring.

Automated BackupsSecurity UpdatesUptime Monitoring
Explore SEO & maintenance
Request a quote for this need
Pillarmaintenance

Web Speed & Core Web Vitals Optimization

Deep performance audit and code optimization to maximize Google Lighthouse scores and boost search rankings.

Speed OptimizationCore Web VitalsFast Loading
Explore SEO optimization
Request a quote for this need
Pillarmaintenance

Complete Technical & Visual Website Redesign

Full modernization of outdated sites: bespoke premium UI, clean lightweight code, mobile responsiveness, and SEO retention.

Full ModernizationContemporary UISEO Retention
Explore custom development
Request a quote for this need
TRANSPARENT METHODOLOGY

A Rigorous 4-Step Engineering Workflow

01

Scoping & Needs Discovery

Precise analysis of your business goals, target audience, and operational flows to define a clear scope.

02

Design & Prototyping

Custom UI/UX prototyping validated together to ensure intuitive ergonomics before writing a single line of code.

03

Development & Integration

Clean code, automated tests, sub-second speed optimization, and secure functionality implementation.

04

Deployment, Training & Warranty

Seamless deployment, self-management training, and technical warranty with fast ongoing support.

SERVICES FREQUENTLY ASKED QUESTIONS

Everything You Need to Know Before Getting Started

If your primary goal is to showcase your business, reassure prospects, and generate qualified quote inquiries, a custom showcase website (Presence or Growth Pack) is ideal. If you need to streamline operations (booking management, business calculations, member portals, or e-commerce), I develop a custom web application or SaaS platform.
Absolutely. You are the sole, full owner of all source code, domain names, and data from final delivery, without recurring software subscriptions. View our full transparency policies in our homepage FAQ.
Turnaround typically ranges from 1 to 2 weeks for a one-page showcase, 2 to 3 weeks for a multi-page site, and 4 to 6 weeks for a custom SaaS application. A precise milestone calendar is agreed upon prior to kickoff.
Yes. Every delivery includes a technical warranty and personalized onboarding, with optional maintenance plans starting at €29/month. Check our main FAQ on the homepage for complete support terms.
Simply complete the contact form with a brief description of your requirements or call +33 7 83 66 60 98. You will receive a technical feasibility review and transparent quote within 24 business hours.

Looking for more details on pricing structure, hosting guarantees, or AI development workflow?

Explore our Complete Homepage FAQ

Do you have a specific digital project in mind?

Get a free technical feasibility study and a clear custom quote within 24 hours.

Discuss my project07 83 66 60 98