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

479 results

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  • Youssef Ennejjar
    Youssef Ennejjar

    Développeur Full Stack | React, Django, Python & IA

    Sales 0

    CSS

    JavaScript

    Docker

    LLM

    Automated workflow

    asp.net

    Tailwind

    Node.js

    React

    Python

  • Fatahou
    Fatahou

    Développeur full stack JavaScript (React.js / Node.js)

    Sales 0

    Back-end

    SQL

    React

    Node.js

    JavaScript

    Front-end

  • Samuel Junior Afolarin
    Samuel Junior Afolarin

    Développeur Shopify | Thèmes sur mesure, bugs, applications & optimisation des conversions

    Sales 0

    E-commerce management

    Shopify coaching

    Shopify

    Shopify theme

    Shopify plugin

  • CLEMENT FERDINAND
    CLEMENT FERDINAND

    Laravel Developer | PHP & Web Development

    Sales 0

    Php

    MySQL

    JavaScript

    HTML

    CSS

    Bootstrap

    Laravel

  • Eric Randriamanantena
    Eric Randriamanantena

    Développeur Web & Designer

    Sales 0

    Python

    HTML

    SEO

    WordPress

    WooCommerce

    Web design

    Landing pages

    JavaScript

    CSS

  • Merzouk
    Merzouk

    Développeur Full Stack Senior PHP / Angular | AWS | Elasticsearch / OpenSearch

    Sales 0

    Web performance optimization

    Php

    JavaScript

    Docker

    Restful api

    Angular

  • Hassan Baldé
    Hassan Baldé

    Hassan Baldé HB

    Sales 0

  • Mostefa
    Mostefa

    Software engineer | Laravel PHP Web developer | API Development | Custom Web Application

    Sales 0

    Tailwind

    Bootstrap

    Laravel

    JavaScript

    React

    HTML

    Php

  • Florian
    Florian

    Développeur

    Sales 0

    Adobe Photoshop

    JavaScript

    WordPress

    Php

    Canva

    Figma

  • jamal
    jamal

    Ingénieur Full-Stack & Développeur Web/Mobile (React, Node.js)

    Sales 0

  • Cyriaque
    Cyriaque

    Développeur Front-End React / Next.js — 4 ans d'expérience, 4 apps livrées en solo

    Sales 0

    Tailwind

    Websockets

    React

    Python

    Api integration

    Full-stack

    Docker

    CSS

  • Mohamed
    Mohamed

    Développeur Web Front-End

    Sales 0

    Responsive design

    HTML

    CSS

  • Mbolatiana Avotra
    Mbolatiana Avotra

    🚀 Développeur Full Stack | Expert WordPress, React.js & Node.js pour Vos Solutions Web

    Sales 0

    Seo writing

    translation

    Organic seo

    Promotion creation

  • Daniel Nikiema
    Daniel Nikiema

    Développeur PHP/MySQL — applications de gestion & conversion Android

    Sales 0

    Php

    MySQL

    JavaScript

    HTML

    CSS

    Bootstrap

    Api

  • Coffi
    Coffi

    Créateur Digital | Expert WordPress, E-commerce & Design

    Sales 0

    SEO

    DaVinci Resolve

    WooCommerce

    Online store creation

    Website redesign

    Website maintenance

    Adobe Photoshop

    Adobe premiere pro

    WordPress

  • Abiodun Adebayo
    Abiodun Adebayo

    E-commerce Specialist

    Sales 0

    Google Ads

    Google my business

    Technical seo optimization

    SEO

    E-commerce coaching

    E-commerce management

    Shopify

    Web design

    Marketing strategy

    Google search console

  • Mohamed
    Mohamed

    Développeur Web Sur-Mesure – Landing Pages, E-commerce & SEO

    Sales 2

    Php

    WordPress

    Prestashop

    React

    Angular

    Web design

  • Fidele
    Fidele

    Ogensys

    Sales 0

  • Georges Ayeni
    Georges Ayeni

    Développeur Web | Mobile Fullstack

    Sales 1

    HTML

    CSS

    JavaScript

    Seo writing

  • Ronan Pradot
    Ronan Pradot

    Développeur fullstack

    Sales 0

    Figma

    Adobe Photoshop

    WordPress

    React

    Php

    Node.js

    HTML

    CSS

  • Eurluco Rafidimanana
    Eurluco Rafidimanana

    Développeur Web Junior & Étudiant en Informatique

    Sales 0

    Jquery

    Web design

    Responsive design

    JavaScript

    HTML

    CSS

  • Jules Lordet
    Jules Lordet

    Développeur sites web & applications fonctionnels en temps record | ULTRA REACTIF !

    Sales 0

    AI

    Listening and counseling

    Showcase website

    Web application

    Mobile application

  • Razakarivony Liva
    Razakarivony Liva

    Sales 290

  • SOUROU O. Cyrille
    SOUROU O. Cyrille

    Développeur Web Full-Stack & Expert SEO

    Sales 0

    React

    Tailwind

    Node.js

    Python

    Php

    MySQL

  • Hermann Douanla Gningaye
    Hermann Douanla Gningaye

    Développeur Web Full-Stack & UI/UX Designer

    Sales 0

    Back-end

    Web design

    Typescript

    Python

    Php

    Front-end

    C#

  • Patrick Longchy Ntiwa
    Patrick Longchy Ntiwa

    Développeur web full stack — WordPress, WooCommerce & React

    Sales 0

    Elementor

    Wordpress plugin

    Website maintenance

    Tailwind

    Figma

    Laravel

    React

    Php

    WordPress

    HTML

  • Dachi Lemovou
    Dachi Lemovou

    Ingénieur logiciel - Expert développement mobile & web - IA automatisation

    Sales 0

    Flutter

    WordPress

    Php

    Node.js

    iOS

    Android

    Symfony

    Laravel

    Angular

    JavaScript

  • Dieudonne
    Dieudonne

    Développeur Flutter senior | Applications Android et iOS

    Sales 0

    Performance audits

    Laravel

    Firebase

    iOS

    Android

    Flutter

    React

    MySQL

    JavaScript

  • Louis
    Louis

    Développeur Full Stack | Laravel • React • Flutter • IA

    Sales 0

    Laravel

    Deadline management

    SaaS

    Showcase website

    Web application

    Mobile application

    Api

    Project management

  • Anuoluwapo
    Anuoluwapo

    AI Video & Automation Specialist | n8n, Make.com, API and Webhooks Integration

    Sales 0

    Api integration

    AI-Generated images

    Prompt engineering

    Python

    UGC video

    Social media videos

    Automated workflow

    Zapier

    Make

    N8N

  • Wiam
    Wiam

    Développeuse Mobile & Full-Stack | Android, iOS, Angular, Firebase

    Sales 0

    Firebase

    iOS

    Android

    Typescript

    JavaScript

    Restful api

    Angular

    Api

  • Nomena Randry
    Nomena Randry

    Développeur Web & Mobile Full-Stack | Web 3D (Three.js) & Applications Sur Mesure

    Sales 1

    Python

    HTML

    CSS

    C#

    Php

    React

    SQL

    MySQL

    JavaScript

    Typescript

  • Joshua Adeojo
    Joshua Adeojo

    CERTIFIED SHOPIFY DEVELOPER AND ROAS DRIVEN DIGITAL MARKETER

    Sales 0

  • Yannick
    Yannick

    csv-cleaner

    Sales 0

  • Zaïdou
    Zaïdou

    Sales 0

    Network security

    IT troubleshooting

    Data entry

    WordPress

    Web security

    Data security

    JavaScript

    HTML

    CSS

  • Gabin Fofie Dayo
    Gabin Fofie Dayo

    Je fais le contrôle préventif de votre site / boutique pour éviter de perdre des clients

    Sales 0

    Proofreading

    Attention to detail

    Web page writing

    Data entry

    translation

    Ai-assisted writing

    Test automation

  • David
    David

    Technicien informatique & développeur Symfony | Assistance, dépannage et services numériques

    Sales 0

    Word

    PowerPoint

    Excel

    Symfony

    PDF editing

    Adobe Acrobat

    System administration

    Adobe Photoshop

  • Anjarasoa Andrianarivo
    Anjarasoa Andrianarivo

    Développeur web/mobile Fullstack

    Sales 0

  • Julien Emmanuel
    Julien Emmanuel

    Automatisation & développement sur mesure — 15 ans en bureau d’études industriel

    Sales 0

    Arduino

    Data analysis

    Data extraction

    Excel

    Debugging

    Automated workflow

    Scripts

    VBA macros

    Web scraping

    Python

  • Abdel-Djamal Adam
    Abdel-Djamal Adam

    Développeur Full-Stack — API & intégrations de paiement (Laravel, Node.js, Vue.js/Nuxt.js)

    Sales 0

    Laravel

    AI agent

    Websockets

    Typescript

    React

    Node.js

    Api integration

    Full-stack

  • Romel Djoumessi
    Romel Djoumessi

    Senior Java/Spring Engineer — 10 ans d'expérience en fintech

    Sales 0

  • Gabriel
    Gabriel

    Sales 0

    Python

    JavaScript

    HTML

    CSS

  • Alexandre
    Alexandre

    Développeur Front-End spécialisé en intégration web, React et TypeScript

    Sales 0

    Debugging

    Typescript

    Responsive design

    Landing pages

    Web application

    HTML

    CSS

    Tailwind

    React

    JavaScript

  • Freddy Nazon
    Freddy Nazon

    Automatisation n8n et outils IA pour TPE/PME

    Sales 0

  • Berthino Rakotomalala
    Berthino Rakotomalala

    Développeur Full-Stack Web & Mobile | React, React Native, NestJS

    Sales 0

    SaaS

    Node.js

    Api integration

    Full-stack

    React native

    Restful api

    Database

    Typescript

    React

    JavaScript

  • Mohamed
    Mohamed

    Architecte web & e-commerce | WordPress, WooCommerce et solutions métier

    Sales 0

    Online store creation

    Server administration

    WordPress

    WooCommerce

    Web design

    Prestashop

    Php

    Magento

    Api integration

    Web application

  • Mitondrasoa Andriamandresy
    Mitondrasoa Andriamandresy

    Développeur full-stack — agent IA & RAG, automatisation n8n, temps réel, application sur mesure

    Sales 0

    AI chatbot

    N8N

    No-code automation

    Typescript

    React

    Python

    Node.js

    Api integration

    React native

    Database

  • Is-deen
    Is-deen

    Développeur Full-Stack | React, Next.js, Node.js | Applications web & mobile

    Sales 0

    End-to-end testing

    Web security

    Node.js

    React native

    Showcase website

    Web application

    Mobile application

    Restful api

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