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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  • KOUETCHA FERNANDO DON DE DIEU
    KOUETCHA FERNANDO DON DE DIEU

    Développeur Fullstack Angular / Spring Boot — API REST, WebSocket, Docker

    Sales 0

    Typescript

    Angular

    Websockets

    Docker

  • Dona
    Dona

    Expert IA & Automatisation| Développeur Web & Créateur Digital

    Sales 0

    Emailing automation

  • Ibidoun Odounbourou
    Ibidoun Odounbourou

    Je crée des sites web modernes & des API professionnelles.

    Sales 0

  • fenitriniaina
    fenitriniaina

    Feni R

    Sales 0

    HTML

    CSS

    Jquery

    JavaScript

    Ajax

    Php

  • David Mario Razafimahaleo
    David Mario Razafimahaleo

    Développeur Web JavaScript | React | Node.js

    Sales 0

    JavaScript

    React

    HTML

    CSS

    Node.js

    Web design

  • Hammed
    Hammed

    Conversion Driven Website Developer | Fixing Websites That Don’t Generate Sales

    Sales 1

    Shopify

    Web design

  • Bel Aubespin
    Bel Aubespin

    Développeur web & expert automatisation IA | bots, workflows, API

    Sales 0

    Marketing automation

    Zapier

    React

    HTML

    CSS

    Python

    JavaScript

  • koffi
    koffi

    Spécialiste SEO

    Sales 0

    Shopify

  • Henintsoa
    Henintsoa

    🛡️ Configuration Active Directory & GPO — audit, création, correction

    Sales 0

  • Sègbé Hounleba
    Sègbé Hounleba

    Sales 0

    HTML

    CSS

    JavaScript

    Responsive design

    Python

    Git versioning

    Bootstrap

  • Arnaud
    Arnaud

    Développeur Web Fullstack | Laravel · Node.js · Architecture Système

    Sales 0

  • KATCHENEFO
    KATCHENEFO

    Expert WordPress & WooCommerce | Création d'applications Web & Mobile | Automatisation d'entreprise

    Sales 0

    WordPress

    WooCommerce

    Community management

  • YVAN
    YVAN

    développeur full stack (spring boot/Angular)

    Sales 0

    HTML

    CSS

    JavaScript

    Tailwind

    Angular

    Unit testing

  • Pape Souleymane Ndao
    Pape Souleymane Ndao

    Développeur Full Stack Python / React

    Sales 0

    Chatbot

    Restful api

    Git versioning

    Database

    React

    JavaScript

    CSS

    HTML

    Python

    WordPress

  • Mirko
    Mirko

    Simple Website Creator for Small Businesses

    Sales 0

    Landing pages

    Web design

  • Constantin Sokenou
    Constantin Sokenou

    Developpeur web FullStack | IA Enthousiast | IT Enthousiast

    Sales 0

  • Rayan Elyounassi
    Rayan Elyounassi

    AI Engineer & Full-Stack Developer | Next.js, LangChain & OpenAI Specialist

    Sales 0

    Full-stack

    Python

    AI agent

    Api

    Api integration

    IT troubleshooting

    Landing pages

    LLM

    Machine learning

  • David
    David

    Développeur + SEO + Business

    Sales 0

    Symfony

    Mobile application

    Android

    Flutter

    WordPress

    Typescript

    Prestashop

    Php

    Angular

  • Mouhyadine
    Mouhyadine

    Expert Développeur Full-Stack MERN | Spécialiste React, Node.js & SaaS

    Sales 0

    Tailwind

    React

    Node.js

    JavaScript

    Api integration

    HTML

    Full-stack

    Restful api

    Bootstrap

  • Ilyes
    Ilyes

    Sales 0

    SEO

    Webhooks

    Web design

    Web security

    Data security

    MySQL

    Payment integration

    React

    Ci/cd pipelines

    Docker

  • Hospice
    Hospice

    Hospice AHOUANDJINOU--Développeur web full-stack

    Sales 0

  • Ilya
    Ilya

    Développeur Python — Automatisation IA, API & Debugging

    Sales 0

    WooCommerce

    WordPress

    JavaScript

    Make

    N8N

    Webhooks

    Test automation

    ChatGPT

    AI agent

    Python

  • Imisioluwa
    Imisioluwa

    AI Automation Architect | Sales Funnels, CRM Integrations E-commerce Website & AI Voice Agents

    Sales 0

    Hubspot

    Shopify

    Shopify theme

    Shopify plugin

    E-commerce niche

    Zoho Social

    Zoho Docs

  • Aminou Mohamadou
    Aminou Mohamadou

    Développeur Shopify & Next.js — UX/UI E-commerce Premium

    Sales 2

    Web design

    Shopify

    React

    JavaScript

    Shopify theme

  • Raymond Jude
    Raymond Jude

    Growth & Automation Expert | GoHighLevel CRM Architect & High-CTR Thumbnail Designer

    Sales 0

    Marketing automation

    HTML

    Hubspot

    Web design

    Responsive design

    Logo Creation

  • Simeon
    Simeon

    Développeur Web Expert | Spécialiste Django, Laravel & API

    Sales 0

    Laravel

    Python

    Php

    Api integration

    JavaScript

    CSS

    HTML

  • Mathis
    Mathis

    Mathisdigit | Création digitale & accompagnement

    Sales 0

    WordPress

    Adobe Photoshop

    Organic seo

  • Matthieu
    Matthieu

    Matthieu Sousa

    Sales 0

    Data analysis

    No-code automation

    Data extraction

    Python

  • Delf Zyboth Apendhi
    Delf Zyboth Apendhi

    Graphiste et développeur d’applications desktop

    Sales 0

    Logo redesign

    Logo Creation

    Business Cards

    Adobe Photoshop

    JavaScript

    C#

    Graphic Design

  • Faridat Abdulazeez
    Faridat Abdulazeez

    Ecommerce Business Expert | Design • Marketing • Strategy

    Sales 0

    Branding

    Wix

    Shopify

    Marketing strategy

  • Miguel Laurès Azifan
    Miguel Laurès Azifan

    Développeur web fullstack

    Sales 0

    Laravel

    Tailwind

    Php

    MySQL

    HTML

    CSS

    Bootstrap

    React

  • Joseph
    Joseph

    Eccomerce Expert | DropshippingSpecialist| Knowledgeable about Web design and Web development |

    Sales 0

    SEO

    Dropshipping

    Facebook Ads

    Email marketing

    Wix

    Web design

    Shopify

    Video editing

    Graphic Design

    2D Animation

  • Nambinintsoa Stéphane
    Nambinintsoa Stéphane

    Developpeur d'application Web et Mobile | Javascript . React · Node.js | 8 ans d'expérience

    Sales 0

    Jquery

    Typescript

    JavaScript

    Ajax

    React

    Node.js

    Api integration

    React native

    Mobile application

    Web application

  • Kevin
    Kevin

    Expert WordPress & Multimédia

    Sales 0

  • Adjé Oladjidé Kenneth Eddy Boni
    Adjé Oladjidé Kenneth Eddy Boni

    Développeur Full-Stack React · React Native · Django

    Sales 0

    Git versioning

    React native

    HTML

    CSS

    JavaScript

    React

    Python

  • Oluwaseyi
    Oluwaseyi

    Shopify Marketing Expert | High-Converting Shopify Designer & Meta Ads Specialist

    Sales 0

    Dropshipping

    Social media advertising

    Theme customization

    TikTok videos

    Facebook Ads

    TikTok Ads

    Meta Ads

    Web design

    Shopify

    Shopify theme

  • Vianel
    Vianel

    Développeur e-commerce & SaaS | Shopify, React Native, automatisation IA

    Sales 0

    No-code automation

    Scripts

    Debugging

    AI agent

    Business development

    E-commerce management

    Dropshipping

    SEO

    Product sheets

    Online store creation

  • Lafia
    Lafia

    Développeur Web Full-Stack | Sites Web, Landing Pages & Applications Sur Mesure

    Sales 0

    HTML

    CSS

    React

    Tailwind

    Git versioning

    Python

  • Lucas
    Lucas

    Développeur Python - Automatisation, Scripts de Données

    Sales 0

    Python

    HTML

    CSS

  • Jules Fakhouri
    Jules Fakhouri

    Développeur web, mobile & expert informatique | Solutions rapides & accompagnement sur mesure💡

    Sales 14

    WordPress

    Windows optimization

    Claude

    Performance audits

    SEO

    IT troubleshooting

    IT support

    iOS

    Android

    Git versioning

  • Hermann
    Hermann

    Développeur Full Stack

    Sales 0

    Php

    Node.js

    Flutter

    Ajax

    MySQL

    Database

    React

    JavaScript

    React native

    Python

  • Tiavina Andrianasolo
    Tiavina Andrianasolo

    Développeur Web Full-Stack | PHP, MySQL, JavaScript

    Sales 0

    Back-end

    Responsive design

    Php

    MySQL

    JavaScript

    HTML

    Front-end

    CSS

  • Magdalene
    Magdalene

    I will design redesign wordpress business website, build wordpress website development

    Sales 0

    WordPress

    JavaScript

    HTML

    CSS

    Web design

    Landing pages

    Front-end

    Web accessibility

  • Sarah
    Sarah

    Clarko

    Sales 0

  • Aurélien
    Aurélien

    Développeur Web & Applications | PHP • JS• Supabase - N8N et Mage

    Sales 0

  • Osmond Wahyudi
    Osmond Wahyudi

    Product Manager - Scrum Master - Business Analyst

    Sales 0

    UX/UI

  • Rayan Ereteo
    Rayan Ereteo

    Développeur web

    Sales 0

    HTML

    CSS

    JavaScript

    Typescript

    React

    Node.js

    MySQL

    Websockets

  • ILESSANMI ADEBISSI ALAO TAOFIC
    ILESSANMI ADEBISSI ALAO TAOFIC

    Développeur Flutter | Applications mobiles et sites web professionnels.

    Sales 0

    Web development training

    Firebase

    Flutter

    UX/UI

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