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

342 results

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  • Théo
    Théo

    Développeur expert web et mobile | SEO | ULTRA-réactif | 🏆 Top 5 Freelance Comeup

    Performance Excellent

    Sales 649

    Status PRO

    WordPress

    Sales funnels

    Shopify

    Prestashop

  • Bertrand Domat
    Bertrand Domat

    Développeur Web Full-Stack | UI/UX Designer | PrestaShop Expert

    Performance Top

    Sales 2,033

    Status PRO

    SEO

    Debugging

    Web design

    Web security

    Prestashop

    Php

    JavaScript

    Extension development

    Organic seo

    WordPress

  • youssef
    youssef

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

    Performance Top

    Sales 2,239

    WordPress

    Prestashop

    Shopify

    Chatbot

    Api

    MySQL

    WooCommerce

    Server configuration

  • Imaging
    Imaging

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

    Performance Top

    Sales 2,640

    Status PRO

    Automated workflow

    Page speed optimization

    Web performance optimization

    Website maintenance

    Data security

    WordPress

    WooCommerce

    Web security

    Prestashop

    Technical seo optimization

  • Maurel
    Maurel

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

    Performance Very good

    Sales 97

    Status PRO

    WordPress

    WooCommerce

    Git versioning

    Angular

    Php

    Python

  • Jules
    Jules

    Agence Expert WordPress | Création, Migration & Résolution de bugs

    Performance Excellent

    Sales 11

  • yoann
    yoann

    Spécialiste WordPress & SEO - Website Manager

    Sales 15

    Status PRO

    WordPress

    Prestashop

    HTML

    CSS

    Php

    Python

    JavaScript

    Web design

    Web scraping

  • AbdulHamid
    AbdulHamid

    E-commerce Developer & Marketing Specialist

    Performance Top

    Sales 17

    Conversion optimization

    Facebook Ads

    Shopify theme

    Dropshipping

    E-commerce management

    Website migration

    Wix

    Shopify

    Landing pages

  • Hassan
    Hassan

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

    Performance Top

    Sales 879

    Status PRO

    Online store creation

    Website redesign

    Seo-optimized content

    WordPress

    Showcase website

    Web performance optimization

    Php

    Shopify

    Prestashop

  • EcomDev
    EcomDev

    Développeur de Sites Web - Expert SEO

    Performance Excellent

    Sales 376

    Status PRO

    Showcase website

    WordPress

    Organic seo

    E-commerce niche

    JavaScript

    Mobile application

  • Donatien Vamuleke
    Donatien Vamuleke

    Développeur WordPress & SEO

    Performance Excellent

    Sales 223

    WordPress

    Shopify

    Php

    React

    WooCommerce

    Landing pages

  • CardinalWeb
    CardinalWeb

    Performance Excellent

    Sales 925

    Status PRO

  • Nicolas
    Nicolas

    Performance Top

    Sales 334

    WordPress

    Logo Modification

    Logo Creation

    IT support

  • Valere
    Valere

    🏅 Développeur web fullstack & no-code

    Performance Excellent

    Sales 182

    WordPress

    WordPress theme

    Shopify

    WooCommerce

  • Cyril
    Cyril

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

    Performance Good

    Sales 7

    Status PRO

    Organic seo

    WordPress

    Shopify

    WooCommerce

    Web design

  • Eddy
    Eddy

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

    Sales 2

    Website maintenance

    SEO

    Restful api

    Website migration

    Online store creation

    Showcase website

    Debugging

    Website redesign

    Technical seo optimization

    Responsive design

  • Kabir Abdulmumin
    Kabir Abdulmumin

    Karbee

    Performance Very good

    Sales 11

    E-commerce niche

    WordPress

    Shopify

    Web design

  • Adama Kone
    Adama Kone

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

    Performance Excellent

    Sales 272

    WordPress

    Wordpress plugin

    Angular

    JavaScript

  • Abbas
    Abbas

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

    Performance Top

    Sales 5

    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

  • Karam
    Karam

    Consultant Web - Expert WordPress & SEO

    Sales 356

    Status PRO

    Showcase website

    Organic seo

    WordPress

    Web design

  • Jean Chrysostome
    Jean Chrysostome

    Expert WordPress & SEO | Solutions web modernes et sur mesure

    Sales 3

    HTML

    CSS

    JavaScript

    Php

    WordPress theme

    Wordpress plugin

  • Aurélien
    Aurélien

    Performance Excellent

    Sales 205

    Status PRO

  • Lucyna
    Lucyna

    Site professionnel pour attirer les clients !

    Performance Very good

    Sales 2,392

    Status PRO

    WordPress

    HTML

    CSS

    Php

    Blog creation

    WooCommerce

  • PIERROT
    PIERROT

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

    Performance Very good

    Sales 270

    Web security

    WordPress

  • Najwa
    Najwa

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

    Performance Top

    Sales 758

    Shopify coaching

    E-commerce coaching

    E-commerce niche

    Shopify theme

    Shopify plugin

    Shopify

    WooCommerce

    WordPress

  • Said
    Said

    Sales 610

  • rabia
    rabia

    Sales 46

  • tachfine
    tachfine

    Sales 209

    WordPress

    CSS

    Web design

  • Fabrice_RC
    Fabrice_RC

    🎯 J’aide les entrepreneurs à clarifier leur message, structurer leur offre et créer un site web...

    Performance Very good

    Sales 238

    Status PRO

    WooCommerce

    Shopify

    Marketing strategy

    WordPress

  • Aboubaker Chajia
    Aboubaker Chajia

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

    Performance Top

    Sales 406

    WordPress

    HTML

    Php

    MySQL

    Adobe Illustrator

  • GBESSIEDE
    GBESSIEDE

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

    Performance Good

    Sales 108

    On-page seo

    Off-page seo

    Google Ads

    Seo writing

  • Yaovi
    Yaovi

    Expert WordPress & Prestashop

    Sales 10

    WordPress

    Prestashop

  • Martin_JS
    Martin_JS

    Développeur FullStack & IA - Conception et développement d'application Web & Mobile

    Performance Good

    Sales 570

    Status PRO

    Full-stack

    WordPress

    Shopify

    Online store creation

    Website redesign

    Showcase website

    Technical seo optimization

    Web application

    Mobile application

    UX/UI

  • Mignonhome
    Mignonhome

    ✨ Expert en Développement sur Mesure 🤝💻🚀

    Performance Very good

    Sales 88

    Status PRO

    WordPress

    Wordpress plugin

    Organic seo

    Shopify

  • Vincent Assa Ala Olinga
    Vincent Assa Ala Olinga

    Testeur QA

    Sales 1

    HTML

    CSS

    JavaScript

    React

    Typescript

    Node.js

  • mohamed el hadi
    mohamed el hadi

    🔥 Développeur Web Senior full-stack

    Performance Very good

    Sales 117

    Php

    JavaScript

    React

    WordPress

    Wordpress plugin

    WooCommerce

    Api

  • Arnaud Adjovi
    Arnaud Adjovi

    Développeur et web designer | React, Laravel, Next.js | Développement mobile

    Performance Top

    Sales 10

    Mobile application

    Php

    WordPress

    React

    Node.js

    Web design

  • Ghislain Kambale Mitahi
    Ghislain Kambale Mitahi

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

    Performance Top

    Sales 41

    WordPress

    WooCommerce

    HTML

    JavaScript

    Php

    SQL

    Bootstrap

    CSS

    Docker

    Node.js

  • Romain
    Romain

    Sales 44

    Status PRO

    WordPress

    Webflow

    Shopify

    Figma

    Web design

  • JESSOUGNON SANDRIN
    JESSOUGNON SANDRIN

    AlphaConnect Technology : Votre Partenaire en Transformation Numérique !

    Sales 10

    Status PRO

    Php

    JavaScript

    WordPress

    Organic seo

    WooCommerce

    Python

    React

    Node.js

  • Jérémie
    Jérémie

    Jeremie

    Sales 2

    Unit testing

  • Philippe
    Philippe

    Développeur WordPress & Consultant SEO | Performance et Optimisation SEO

    Performance Very good

    Sales 5

    WordPress

    Wordpress plugin

    WordPress theme

    HTML

    CSS

    WooCommerce

    Php

    On-page seo

  • Lefreelancer
    Lefreelancer

    Expert en création de sites web, e-commerce et stratégie digitale

    Performance Excellent

    Sales 2,645

    Status PRO

    Facebook pages

    Prestashop

    WordPress

    Wordpress plugin

    WordPress theme

    Shopify

    Adobe Photoshop

    Adobe Illustrator

    WooCommerce

  • Yoann
    Yoann

    Développeur WEB Sénior (PHP/Laravel)

    Sales 179

    Status PRO

    Php

    MySQL

    HTML

    CSS

    JavaScript

    Jquery

    Bootstrap

    Git versioning

  • Djahou Boko
    Djahou Boko

    ETIENNE BOKO

    Sales 1

    UX/UI

    Adobe Photoshop

    HTML

    CSS

    JavaScript

  • Vidal Tresor
    Vidal Tresor

    Développeur Web - Consultant en Marketing Digital

    Performance Excellent

    Sales 367

    WordPress

    Email marketing

    Emailing automation

    Web design

    IT support

    Chatbot

    Zapier

    WooCommerce

    HTML

    CSS

  • Fuznet
    Fuznet

    Shopify Expert

    Performance Good

    Sales 6,148

    Status PRO

    Shopify

    HTML

    CSS

    JavaScript

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