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

352 results

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  • Théo
    Théo

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

    Performance Excellent

    Sales 650

    Status PRO

    WordPress

    Sales funnels

    Shopify

    Prestashop

  • 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 2,643

    Status PRO

    Full-stack

    Automated workflow

    Page speed optimization

    Web performance optimization

    Website maintenance

    WordPress

    WooCommerce

    Web security

    Prestashop

    Technical seo optimization

  • 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

  • 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

  • Hassan
    Hassan

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

    Performance Top

    Sales 880

    Status PRO

    Online store creation

    Website redesign

    Seo-optimized content

    WordPress

    Showcase website

    Web performance optimization

    Php

    Shopify

    Prestashop

  • 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

  • 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

  • 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

  • EcomDev
    EcomDev

    Développeur de Sites Web - Expert SEO

    Performance Excellent

    Sales 377

    Status PRO

    Showcase website

    WordPress

    Organic seo

    E-commerce niche

    JavaScript

    Mobile application

  • CardinalWeb
    CardinalWeb

    Performance Excellent

    Sales 929

    Status PRO

  • Donatien Vamuleke
    Donatien Vamuleke

    Développeur WordPress & SEO

    Performance Excellent

    Sales 224

    WordPress

    Shopify

    Php

    React

    WooCommerce

    Landing pages

  • 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

  • Valere
    Valere

    🏅 Développeur web fullstack & no-code

    Performance Excellent

    Sales 183

    Website migration

    Website redesign

    Website maintenance

    Elementor

    Divi

    Showcase website

    WordPress

    WordPress theme

    Shopify

    WooCommerce

  • Kabir Abdulmumin
    Kabir Abdulmumin

    Karbee

    Performance Very good

    Sales 13

    E-commerce niche

    WordPress

    Shopify

    Web design

  • Adama Kone
    Adama Kone

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

    Performance Excellent

    Sales 279

    WordPress

    Wordpress plugin

    Angular

    JavaScript

  • Nicolas
    Nicolas

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

    Performance Top

    Sales 334

    WordPress

    Logo Modification

    Logo Creation

    IT support

  • 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

  • Jean Chrysostome
    Jean Chrysostome

    Expert WordPress & SEO | Solutions web modernes et sur mesure

    Sales 4

    HTML

    CSS

    JavaScript

    Php

    WordPress theme

    Wordpress plugin

  • Aurélien
    Aurélien

    Performance Excellent

    Sales 205

    Status PRO

  • Cyril
    Cyril

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

    Performance Good

    Sales 7

    Status PRO

    Organic seo

    WordPress

    Shopify

    WooCommerce

    Web design

  • Najwa
    Najwa

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

    Performance Top

    Sales 763

    Shopify coaching

    E-commerce coaching

    E-commerce niche

    Shopify theme

    Shopify plugin

    Shopify

    WooCommerce

    WordPress

  • Karam
    Karam

    Consultant Web - Expert WordPress & SEO

    Performance Excellent

    Sales 357

    Status PRO

    Showcase website

    Organic seo

    WordPress

    Web design

  • Lucyna
    Lucyna

    Site professionnel pour attirer les clients !

    Performance Very good

    Sales 2,392

    Status PRO

    WordPress

    HTML

    CSS

    Php

    Blog creation

    WooCommerce

  • Fabrice_RC
    Fabrice_RC

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

    Performance Very good

    Sales 240

    Status PRO

    WooCommerce

    Shopify

    Marketing strategy

    WordPress

  • Said
    Said

    Sales 610

  • Jérémie
    Jérémie

    Jeremie

    Sales 3

    Unit testing

  • rabia
    rabia

    Sales 46

  • PIERROT
    PIERROT

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

    Performance Very good

    Sales 271

    Web security

    WordPress

  • Aboubaker Chajia
    Aboubaker Chajia

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

    Performance Top

    Sales 407

    WordPress

    HTML

    Php

    MySQL

    Adobe Illustrator

  • tachfine
    tachfine

    Sales 209

    WordPress

    CSS

    Web design

  • Yaovi
    Yaovi

    Expert WordPress & Prestashop

    Sales 10

    WordPress

    Prestashop

  • GBESSIEDE
    GBESSIEDE

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

    Performance Good

    Sales 109

    On-page seo

    Off-page seo

    Google Ads

    Seo writing

  • mohamed el hadi
    mohamed el hadi

    🔥 Développeur Web Senior full-stack

    Performance Excellent

    Sales 118

    Php

    JavaScript

    React

    WordPress

    Wordpress plugin

    WooCommerce

    Api

  • Vincent Assa Ala Olinga
    Vincent Assa Ala Olinga

    Testeur QA

    Sales 1

    HTML

    CSS

    JavaScript

    React

    Typescript

    Node.js

  • Martin_JS
    Martin_JS

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

    Performance Very 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

  • 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

  • Romain
    Romain

    Sales 44

    Status PRO

    WordPress

    Webflow

    Shopify

    Figma

    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

  • 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

  • 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

  • Vidal Tresor
    Vidal Tresor

    Développeur Web - Consultant en Marketing Digital

    Performance Excellent

    Sales 370

    WordPress

    Email marketing

    Emailing automation

    Web design

    IT support

    Chatbot

    Zapier

    WooCommerce

    HTML

    CSS

  • Nicolas Pivaut
    Nicolas Pivaut

    Agence web à Lille

    Sales 1

    Status PRO

    WordPress

    Server configuration

  • Giovani
    Giovani

    Développement Web et Mobile | Architecture logiciel | Design UI/UX | SEO

    Performance Top

    Sales 48

    Status PRO

    CSS

    JavaScript

    Node.js

    Web design

    Docker

  • KOUAWEMA
    KOUAWEMA

    Expert création de site internet | Consultant SEO

    Sales 25

    Status PRO

    WooCommerce

    Adobe Photoshop

    Adobe Illustrator

    WordPress

    Organic seo

    HTML

    CSS

    Figma

    Web design

    Responsive design

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