585 javascript English-speaking jobs in Portugal
JavaScript Security Engineer - Web Browser Vulnerabilities (Hybrid - Lisbon)
- Cognizant Technology Solutions
- Lisbon
- May 2
JavaScript Security Engineer - Web Browser Vulnerabilities English Required / Based in Lisbon, Portugal ... / HybridWe are seeking a skilled JavaScript and cyber‐security professional to analyze, reverse engineer ... as React, Angular, or jQuery.Strong code reverse engineering and debugging skills, particularly in JavaScript ... and maintain clear technical documentation.You are someone who bringsStrong hands‐on experience with JavaScript ... security violations and malicious behaviour.Perform code reverse engineering and debugging, primarily in JavaScript‐based
Fullstack .Net Developer
- bridge351
- Lisbon
- May 6
Required ExperienceAt least 2 years of experience in .NET.At least 3 years of experience in JavaScript ... SkillsExcellent knowledge of .NET 10 and .NET Framework (C#) server‐side programming.Excellent knowledge of JavaScript
Retail & E-Commerce | Senior Frontend Developer
- Devoteam Portugal
- Porto
- May 11
Javascript Developer
- HumanIT
- Portugal
- May 7
Software developer to join a team building advanced platforms and services. Experience with Node.js, Express, MongoDB, and Redis is required.
JavaScript / SAP UI5 Developer
- Aubay Portugal
- Lisbon
- May 4
Implement and enhance SAP UI5 applications, ensuring brand compliance and accessibility. Collaborate with cross-functional teams to design, code, test, and deploy solutions.
Full-Stack JavaScript Developer (Node.js
- Trinetix
- Lisbon
- April 29
Full-Stack Developer (Full Remote from Everywhere) We are seeking a passionate and skilled Full-Stack JavaScript ... user-friendly applications.RequirementsMinimum of 5 years of professional experience as a Full-Stack JavaScript
Javascript Lead Developer
- Emergn
- Portugal
- May 2
Lead Javascript Developer to collaborate on project scope, architecture, and delivery timelines. Conduct code reviews, enforce coding standards, and troubleshoot applications. Requires strong React knowledge, experience with Ruby on Rails, TypeScript, Redux, PostgreSQL, Docker, and OpenAI. Must have excellent English communication skills.
Software Development Engineer in Test (Mobile)
- We Are META
- Lisbon
- May 4
Espresso, SnapKit, Continuous Integration / Continuous Delivery (CI/CD), UI Testing, Swift, API Testing, JavaScript ... to improve productivity, automation and engineering workflows Experience with Java, Kotlin, Swift, Javascript
Javascript Senior Software Engineer (AI Apps)
- Tether.io
- Lisbon
- April 29
. +6 years of experience working with Nodejs/JavaScript.
Full-Stack Developer (PHP & JavaScript)
- InnoTech
- Lisbon
- May 3
Full-Stack Developer to build scalable features for an application marketplace, including dashboards, APIs, and user-facing components. Collaborate with teams to translate requirements into high-quality deliverables. Ensure code quality through testing, reviews, and adherence to best practices.
JavaScript / TypeScript Engineer (React)
- Evolution Gaming Limited
- Portugal
- May 1
We are searching for passionate JavaScript / TypeScript engineers to take an integral part in building ... development, and improving yourself technically;Proven experience in delivering production software using JavaScript ... contemporary programming trends such as functional and reactive programming, CSS preprocessing, alternative JavaScript ... specifications libraries like Jest, Enzyme, Puppeteer/PlayWright, WebDriverIO, Cucumber, Mocha.Knowledge of JavaScript
Senior Frontend Software Engineer, Javascript
- PVComplete
- Portugal
- April 30
Deep understanding of the browser and UI development in JavaScript Knowledge of REST API best practices ... You should be comfortable writing vanilla JavaScript, as well as using Angular, React, or a similar frontend ... Your primary code contribution will come in the form of frontend JavaScript code, with periodic contributions ... + years professional experience developing and delivering commercial software Expert level skill in JavaScript ... languages Knowledge of object‐oriented programming best practices and the ability to realize them in JavaScript
Javascript AUTOMATION TESTER (QAE) (HYBRID @Porto)
- KCS iT
- Porto
- May 3
We are seeking a QA Automation Tester with 5+ years of experience in software testing and automation. The ideal candidate will have experience with Selenium, CI/CD pipelines, and version control systems like Git. Excellent problem-solving, communication, and teamwork skills are required. Proficiency in English is mandatory.
Automation Tester
- Standout Tech
- Portugal
- May 4
testing.ResponsibilitiesDesign, implement, and maintain automated test frameworksDevelop test scripts using JavaScript ... improvementRequirementsSolid experience with automated testing frameworks and toolsStrong knowledge of JavaScript
Customer Success Manager
- Jscrambler
- Portugal
- May 16
As leaders in Client-Side Protection and Compliance, we have pioneered the integration of advanced JavaScript
Technical Developer – Dynamics 365 Customer Service (JavaScript & CIF, Europe)
- Talent Connect
- Lisbon
- February 24
Angular Developer
- Adentis Portugal
- Coimbra
- May 1
Senior Frontend Developer to join our team in Lisbon. Develop and maintain web applications using ReactJS and NextJS. Implement responsive designs with HTML, CSS, TypeScript, and JavaScript.
Full-Stack Engineer
- Blip
- Porto
- May 1
applications.Consolidated experience in ReactJS.Experience with JavaScript test tools (e.g. ... NPM, Webpack, Grunt, Gulp, etc) and server-side JavaScript (NodeJS).Experienced with Automated testing ... rapid change.Frontend SkillsConsolidated professional experience building high-quality, performant JavaScript
Frontend Developer in Porto (m/f/d)
- mgm Germany
- Portugal
- May 3
and TypescriptDevelopment for various devices and operating systemsWhat you should bringHTML, CSS, JavaScript
Frontend Developer
- Landskill
- Portugal
- May 3
What we're looking for: Experience in JavaScript development Expertise in JavaScript frameworks (Angular





































