Freelance bug fix developer

Work with a freelance developer to fix bugs and resolve technical issues fast

Your website or app is experiencing bugs and errors that hurt user experience? On ComeUp, freelance developers diagnose and fix technical issues quickly and reliably. Expert support to get your digital product back on track.

Services Freelancers

383 results

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  • Théo
    Théo

    Développeur expert web et mobile | SEO | ULTRA-réactif |

    Performance Top

    Sales 659

    Status PRO

    WordPress

    Sales funnels

    Shopify

    Prestashop

  • Imaging
    Imaging

    Développeur web certifié Prestashop & WordPress : réparation, dépannage et création de site commerce

    Performance Top

    Sales 2,648

    Status PRO

    Full-stack

    Automated workflow

    Page speed optimization

    Web performance optimization

    Website maintenance

    WordPress

    WooCommerce

    Web security

    Prestashop

    Technical seo optimization

  • youssef
    youssef

    Développeur Web & E-commerce | WordPress, PrestaShop, Shopify, PHP, VPS, SEO, security, Optimization

    Performance Top

    Sales 2,243

    WordPress

    Prestashop

    Shopify

    Chatbot

    Api

    MySQL

    WooCommerce

    Server configuration

  • yoann
    yoann

    Spécialiste WordPress & SEO - Website Manager

    Sales 15

    Status PRO

    WordPress

    Prestashop

    HTML

    CSS

    Php

    Python

    JavaScript

    Web design

    Web scraping

  • Maurel
    Maurel

    Développeur Full-Stack | Laravel · Vue.js · Flutter · WordPress · Django · Angular

    Performance Excellent

    Sales 97

    Status PRO

    WordPress

    WooCommerce

    Git versioning

    Angular

    Php

    Python

  • Jules
    Jules

    Agence Expert WordPress | Création, Migration & Résolution de bugs

    Performance Top

    Sales 11

  • AbdulHamid
    AbdulHamid

    E-commerce Developer & Marketing Specialist

    Performance Top

    Sales 18

    Conversion optimization

    Facebook Ads

    Shopify theme

    Dropshipping

    E-commerce management

    Website migration

    Wix

    Shopify

    Landing pages

  • CardinalWeb
    CardinalWeb

    Performance Top

    Sales 931

    Status PRO

  • EcomDev
    EcomDev

    Développeur de Sites Web - Expert SEO

    Performance Top

    Sales 381

    Status PRO

    Showcase website

    WordPress

    Organic seo

    E-commerce niche

    JavaScript

    Mobile application

  • SLIMANE
    SLIMANE

    Je crée votre application Web & Mobile de A à Z | Livraison rapide • Code propre

    Sales 53

    Python

    JavaScript

    React

    HTML

    CSS

    SQL

    MySQL

  • Hassan
    Hassan

    Expert WordPress & SEO | Sites performants, visibles et conçus pour convertir

    Performance Top

    Sales 881

    Status PRO

    Online store creation

    Website redesign

    Seo-optimized content

    WordPress

    Showcase website

    Web performance optimization

    Php

    Shopify

    Prestashop

  • DonatienPro
    DonatienPro

    Développeur WordPress & SEO

    Performance Top

    Sales 228

    Status PRO

    WordPress

    Shopify

    Php

    React

    WooCommerce

    Landing pages

  • Mike Kukwikila
    Mike Kukwikila

    Consultant SEO-GEO, WordPress & IA | Acquisition Client

    Sales 28

    Status PRO

    Automated workflow

    Digital marketing

    WordPress

    Organic seo

    Google my business

    Google search console

    Advertising campaigns

  • Sophie Boutemy
    Sophie Boutemy

    Développeuse web – WordPress & WooCommerce | Dépannage, maintenance et développement

    Performance Top

    Sales 5

    Status PRO

    HTML

    Php

    JavaScript

    WordPress

    Wordpress plugin

    WordPress theme

  • Valere
    Valere

    🏅 Développeur web fullstack & no-code

    Performance Top

    Sales 186

    Website migration

    Website redesign

    Website maintenance

    Elementor

    Divi

    Showcase website

    WordPress

    WordPress theme

    Shopify

    WooCommerce

  • Karam
    Karam

    Consultant Web - Expert WordPress & SEO

    Performance Top

    Sales 360

    Status PRO

    Showcase website

    Organic seo

    WordPress

    Web design

  • Adama Kone
    Adama Kone

    Intégrateur & Consultant Odoo | Automatisations | Sites web WordPress · Make · Zapier · n8n

    Performance Top

    Sales 285

    WordPress

    Wordpress plugin

    Angular

    JavaScript

  • Kabir Abdulmumin
    Kabir Abdulmumin

    Karbee

    Performance Top

    Sales 18

    E-commerce niche

    WordPress

    Shopify

    Web design

  • Chajia
    Chajia

    Création de Sites WordPress | E-commerce & Vitrine | 🔧 Maintenance & Optimisation SEO

    Performance Top

    Sales 409

    Status PRO

    WordPress

    HTML

    Php

    MySQL

    Adobe Illustrator

  • Michael Galy
    Michael Galy

    Performance Top

    Sales 459

    Web security

  • Said
    Said

    Sales 611

    Laravel

    Back-end

    WordPress

    WooCommerce

    Python

    Prestashop

    Php

    HTML

    WooCommerce plugin

    CSS

  • Aurélien
    Aurélien

    Performance Top

    Sales 205

    Status PRO

  • Sitraka Nehemia Léon
    Sitraka Nehemia Léon

    Développeur Full Stack

    Sales 12

    WordPress

    React

    Node.js

    Php

    Tailwind

    Bootstrap

  • GBESSIEDE
    GBESSIEDE

    🚀 Consultant SEO & GEO & Google Ads – Faites décoller votre business en ligne

    Performance Good

    Sales 112

    On-page seo

    Off-page seo

    Google Ads

    Seo writing

  • RYAD
    RYAD

    ECOM MARKETING

    Sales 110

    Status PRO

  • Najwa
    Najwa

    🚀 Ingénieure en Informatique | Experte en Shopify et E-commerce 💻

    Performance Top

    Sales 767

    Shopify coaching

    E-commerce coaching

    E-commerce niche

    Shopify theme

    Shopify plugin

    Shopify

    WooCommerce

    WordPress

  • Nicolas
    Nicolas

    Responsable E-commerce & Digital Indépendant — Consultant en transformation digitale des PME

    Sales 334

    WordPress

    Logo Modification

    Logo Creation

    IT support

  • Eddy
    Eddy

    Développeur Expert : Je crée vos Plateformes Web Haute Performance & Tunnels de Vente

    Sales 3

    Website maintenance

    SEO

    Restful api

    Website migration

    Online store creation

    Showcase website

    Debugging

    Website redesign

    Technical seo optimization

    Responsive design

  • Jérémie
    Jérémie

    Jeremie

    Sales 3

    Unit testing

  • Jean Chrysostome
    Jean Chrysostome

    Expert WordPress & SEO | Solutions web modernes et sur mesure

    Performance Top

    Sales 6

    Web performance optimization

    Website maintenance

    WooCommerce

    SEO

    WordPress

    CSS

    JavaScript

    Php

    WordPress theme

    Wordpress plugin

  • Didier Mollet
    Didier Mollet

    Sales 1,521

    Status PRO

    Adobe Illustrator

    Adobe Photoshop

    Adobe InDesign

  • Mourad
    Mourad

    Développeur WordPress & Elementor | Création de sites internet WP sur mesure.

    Sales 95

    Status PRO

    WordPress

    WooCommerce

    Wordpress plugin

  • Martin_JS
    Martin_JS

    Ingénieur logiciel - Développeur Web, Mobile & intégration IA : Application, SaaS, Plateforme, Sites

    Performance Good

    Sales 571

    Status PRO

    Web application

    Mobile application

    UX/UI

    Sales funnels

    AI

    Website redesign

    WooCommerce

    Shopify

    SEO

    WordPress

  • Lefreelancer
    Lefreelancer

    Expert en Digital, E-commerce, Drosphipping & IA — CMS/Automatisation

    Performance Top

    Sales 2,655

    Status PRO

    Facebook pages

    Prestashop

    WordPress

    Wordpress plugin

    WordPress theme

    Shopify

    Adobe Photoshop

    Adobe Illustrator

    WooCommerce

  • Lucyna
    Lucyna

    Site professionnel pour attirer les clients !

    Sales 2,392

    Status PRO

    WordPress

    HTML

    CSS

    Php

    Blog creation

    WooCommerce

  • mohamed el hadi
    mohamed el hadi

    🔥 Développeur Web Senior full-stack

    Performance Top

    Sales 118

    Php

    JavaScript

    React

    WordPress

    Wordpress plugin

    WooCommerce

    Api

  • Fuznet
    Fuznet

    Shopify Expert

    Performance Good

    Sales 6,151

    Status PRO

    Shopify

    HTML

    CSS

    JavaScript

  • Abbas
    Abbas

    E-commerce Specialist | Shopify, Wix, WooCommerce Growth Expert

    Performance Top

    Sales 8

    Wix

    WooCommerce plugin

    WooCommerce theme

    WooCommerce

    WordPress

    Wordpress plugin

    WordPress theme

    Shopify

    Shopify plugin

    Shopify theme

  • Elijah
    Elijah

    Shopify Store Optimization & Compliance Specialist

    Sales 2

    Wix

    WordPress

    WooCommerce

    Shopify

    Shopify theme

    Shopify plugin

    Wordpress plugin

    On-page seo

    Off-page seo

    Technical seo optimization

  • Yaovi
    Yaovi

    Expert WordPress & Prestashop

    Sales 10

    WordPress

    Prestashop

  • Mignonhome
    Mignonhome

    ✨ Expert en Développement sur Mesure 🤝💻🚀

    Performance Excellent

    Sales 88

    Status PRO

    WordPress

    Wordpress plugin

    Organic seo

    Shopify

  • Cyril
    Cyril

    Agence web professionnelle | Création de sites, apps mobiles & SEO

    Performance Top

    Sales 7

    Status PRO

    Organic seo

    WordPress

    Shopify

    WooCommerce

    Web design

  • Romain
    Romain

    Sales 44

    Status PRO

    WordPress

    Webflow

    Shopify

    Figma

    Web design

  • PIERROT
    PIERROT

    Expert WordPress | Création de sites internet | Support & Maintenance WordPress

    Performance Good

    Sales 276

    Web security

    WordPress

  • Ghislain Kambale Mitahi
    Ghislain Kambale Mitahi

    Expert WordPress & Shopify | Dév Fullstack React, Next.js, Node.js, Python

    Performance Top

    Sales 42

    WordPress

    WooCommerce

    HTML

    JavaScript

    Php

    SQL

    Bootstrap

    CSS

    Docker

    Node.js

  • Leon Semado
    Leon Semado

    Développeur WordPress | Création de sites modernes, structurés et optimisés conversion & SEO

    Performance Top

    Sales 16

    Status PRO

    Elementor

    Website redesign

    SEO

    Page speed optimization

    WordPress

    WooCommerce

  • Aurélien Mazauric
    Aurélien Mazauric

    📈 Votre équipe marketing tout-en-1 | Top 13 ComeUp 🚀

    Performance Top

    Sales 277

    Status PRO

    Website redesign

    Community management

    Showcase website

    UGC video

    Marketing strategy

    Advertising campaigns

    Versatility

    Digital marketing

  • MYLENE
    MYLENE

    🚀 11 ans d'exp. | SEO | Google Ads | Meta Ads | Fiche Google | Local Service | SEO local 🌐

    Sales 85

    Status PRO

    Organic seo

    Instagram Ads

    Local seo

    Facebook Ads

    Meta Ads

    Google Maps

    Google search console

    Google my business

    Google Ads

    WordPress

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