✓ No commitment · ⚡ Reply within 24 h · 📞 06 78 85 05 63
Certified PrestaShop Expert · CORE SKILLS

A real PrestaShop expert
who touches the code himself.

Certified PrestaShop Expert for development, audit, migration, optimisation and emergency intervention

Not an agency with 3 project managers between you and the developer. Not a freelance who is "learning on your site". A developer certified PrestaShop CORE SKILLS, who knows the 4 generations (1.6, 1.7, 8, 9), their pitfalls and their best practices. You call me, I pick up, I touch the code.

Or call directly: +33 6 78 85 05 63
✓ PrestaShop Expert CORE SKILLS ✓ 6+ years · 120+ sites ✓ From €60/h excl. VAT
📊 By the numbers

What makes an expert credible

Not marketing promises. Verifiable figures from 6 years of activity.

6+
years of expertise
PrestaShop full-stack
120+
sites in production
currently maintained
4
PrestaShop generations
mastered (1.6 → 9.x)
100%
direct contact
no project manager
🆚 Comparison

Certified expert vs agency vs generic freelance

Three models, three prices, three service levels. Up to you to pick what matches your need.

Criterion Certified expert PrestaShop agency Generic freelance
Official certification ✓ CORE SKILLS Varies by dev ✗ Rarely
Direct contact ✓ You talk to the dev ✗ Via project manager ✓ Direct
Hourly rate excl. VAT €60-90 €90-150 €35-60
PrestaShop knowledge Specialist Varies Generic web
Code that survives updates ✓ Standards followed ✓ If senior dev Not guaranteed
Emergency responsiveness < 30 min 24-48 h Varies
Verdict for small businesses / SMEs Sweet spot Oversized & expensive Quality risk
🛠 Services

7 services that cover 95% of PrestaShop needs

You can pick from a single category or combine. Detailed quote within 24 business hours after scoping.

1. Custom development

Business modules (dynamic pricing, B2B workflow, ERP / PIM / CRM sync), overrides of native features, external API integrations (couriers, payment, marketplaces). Code documented, tested, compliant with PrestaShop standards to survive updates.

2. Complete technical audit

Performance (Core Web Vitals, database, cache), security (CVE, vulnerable modules, hardening), technical debt (broken overrides, obsolete modules), compliance (GDPR, accessibility). PDF deliverable with costed, prioritised recommendations.

3. Version migration

1.6→1.7, 1.7→8, 8→9, with upstream module compatibility audit, systematic staging tests, 301 redirects to preserve SEO. Zero-downtime migration possible on projects with < 1000 products.

4. Performance optimisation

Lighthouse + RUM audit, cache activation (CCC, Smarty, Redis), database indexing, WebP conversion, CDN. Median gain observed across 12 optimisations: −62% LCP in 30 days.

5. Emergency incident intervention

500 error, blank page, payment KO, hacking, BO inaccessible, failed migration. Response within 30 min during business hours, free diagnostic, costed intervention before any action.

6. Continuous maintenance

5-min uptime monitoring, externalised daily backups, PrestaShop CVE hotfix within 48h, support on demand, monthly report. No-commitment contracts from €50/month.

7. Strategic consulting & guidance

Module choice vs in-house development, e-commerce architecture (multi-store, B2B, marketplace), technical SEO strategy, hosting choice, in-house team training. More consultative than operational — often the trigger for the services above.

💰 Pricing

Pricing stated up-front

Free pre-audit. For the intervention, you know exactly what it costs before I touch the code.

🔍 Pre-audit

Pre-audit / scoping

understand your need
0€free
30 min · no commitment
  • Scoping of the business need + current stack
  • Inventory of PS version, modules, hosting
  • Firm quote sent within 24 business hours
  • You decide if we continue
Discuss the project →
⚡ Most requested 🔧 Intervention

Intervention on quote

development / audit / migration
from 60€excl. VAT
per scoping · price stated up-front
  • Backup of files + DB before intervention
  • Staging development, client validation at every step
  • Code documented compliant with PrestaShop standards
  • Deployment outside peak traffic + 48h monitoring
  • 30-day warranty on the delivered code
🛡️ Maintenance

Monthly maintenance

dedicated expert per month
from 50€/ month
24/7 monitoring · no commitment
  • Monitoring + backups + CVE hotfix included
  • Monthly dev time 20 min to 2 h, cumulative
  • Priority emergency intervention
  • Written monthly report
See plans →
❓ FAQ

PrestaShop Expert — frequently asked questions

Since 2022, PrestaShop has been running an official certification programme. The CORE SKILLS certification validates mastery of the framework: architecture (Front Controller, Override, Hook), development of modules compliant with the 1.7 / 8.x / 9.x standards, integration of Smarty themes, DB and template management, and understanding of the update cycle and breaking changes between versions. It is the difference between someone who "codes modules" and someone who develops modules that survive updates.
Three differences: (1) Direct contact: certified freelance = you talk to the developer. Agency = intermediate project manager who relays to a junior dev. (2) Cost: freelance expert €60-90/h excl. VAT, agency €90-150/h excl. VAT for equivalent work. (3) Continuity: freelance follows your project over time and knows it. Agency switches dev for every ticket. For 95% of small business / SME projects (< 50 employees), a certified freelance is more than enough.
All active versions: 1.6 (8% of the base, end-of-life), 1.7 (45% of the base, the most widespread), 8.x (35%, 2026 sweet spot), 9.x (~12%, released May 2025). I know the architectural differences: 1.6 without Symfony, 1.7 with Symfony 4 BO, 8.x on Symfony 6, 9.x on Symfony 7. Each generation has its pitfalls (override, hook, services container) — the CORE SKILLS certification validates mastery of these transitions.
(1) Scoping: 30 min of free pre-audit. (2) Firm quote within 24 business hours: duration, deliverables, schedule, payment terms. (3) Development: staging identical to production, daily backup, code documented and tested, client validation at every key step. (4) Deployment: production push outside peak traffic, 48h post-deployment monitoring, 30-day warranty on the delivered code. Method applicable from an 8h module to a 200h rebuild.
Seven categories cover 95% of needs: (1) custom development, (2) complete technical audit, (3) version migration, (4) performance optimisation, (5) emergency intervention (500 error, blank page, payment, hacking), (6) continuous maintenance, (7) strategic consulting & guidance. You can pick from a single one or combine.
Three criteria to check with any PrestaShop expert before signing: (1) official certification (CORE SKILLS minimum) — a guarantee of mastery validated by the publisher. KLN-WEB is certified. (2) Verifiable portfolio: ask for live sites, not just screenshots. KLN-WEB currently maintains 120+ sites. (3) Transparent pricing: an expert who refuses to quote without several paid sessions is probably a disguised agency. KLN-WEB: free diagnostic, quote within 24 business hours, hourly rate stated up-front (€60/h excl. VAT).

Need a real PrestaShop expert?

Free 30-min pre-audit: we scope the need, we cost it, you decide. Quote within 24 business hours.

📞 +33 6 78 85 05 63
📞 Call · 06 78 85 05 63