592 javascript English-speaking jobs in Portugal
JavaScript Security Engineer - Web Browser Vulnerabilities (Hybrid - Lisbon)
- Cognizant
- Lisbon
- April 30
JavaScript Security Engineer - Web Browser Vulnerabilities English Required / Based in Lisbon, Portugal ... / HybridWe are seeking a skilled JavaScript Security Engineer with a strong background in web technologies ... static and dynamic analysis techniques to detect security violations and malicious behavior.Perform JavaScript ... Angular, or jQuery.Strong code analysis, debugging, and reverse engineering skills, particularly in JavaScript ... improvement of security workflows and tooling.You Are Someone Who BringsStrong hands‐on experience with JavaScript
JavaScript Security Engineer - Web Browser Vulnerabilities (Hybrid - Lisbon)
- Cognizant Technology Solutions
- Portugal
- 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
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.
Senior Fullstack Developer (Node.Js + React)
- Trinetix
- Portugal
- May 2
We are seeking a passionate and skilledFull-Stack JavaScript Developerto join our team. ... efficient, and user-friendly applications.Requirements5 years of professional experience as a Full-Stack JavaScript
Retail & E-Commerce | Senior Frontend Developer
- Devoteam Portugal
- Porto
- May 11
Fullstack .Net Developer
- bridge351
- Portugal
- 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
Javascript / Typescript Developer
- Aubay Portugal
- Portugal
- May 6
Senior Backend Developer to build and maintain scalable backend services and APIs using Node.js, Express, MongoDB, and Redis. Collaborate with product and engineering teams to design new features and optimize for performance, scalability, and reliability.
Senior Frontend Software Engineer, Javascript
- PVComplete
- Porto
- April 23
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
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 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
- Lisbon
- April 16
testing.ResponsibilitiesDesign, implement, and maintain automated test frameworksDevelop test scripts using JavaScript ... improvementRequirementsSolid experience with automated testing frameworks and toolsStrong knowledge of JavaScript
Fullstack Engineer
- Promptly Health
- Lisbon
- May 7
, TypeScript, Node, Python, Django, Kafka Experience with frontend JavaScript libraries such as React ... job QualificationsProficient on the base Full-Stack development technologies, including HTML5/CSS3/JavaScript
Technical Developer – Dynamics 365 Customer Service (JavaScript & CIF, Europe)
- Talent Connect
- Lisbon
- February 24
TIBCO Spotfire Senior Developer
- emagine
- Lisbon
- April 29
Develop and maintain advanced TIBCO Spotfire dashboards, data models, and integrations. Implement complex logic using Spotfire Expressions, IronPython, JavaScript, and the Spotfire SDK. Optimize reports for large data volumes.
Full Stack Developer - Symfony And Javascript | Permanent Contract
- Rise Up
- Portugal
- May 7
Strong experience in modern JavaScript frameworks (Vue.js, React, Angular, or Svelte).
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.
Dynamics 365 Customer Engagement Developer
- IRIUM Portugal
- Lisbon
- May 1
Key ResponsibilitiesDevelop C# plugins, custom workflows, and JavaScript/TypeScript for D365 CE. ... Front-end Enhancement: Develop client-side scripting (JavaScript/TypeScript) and Power Apps Component ... Stack: .NET (C#), JavaScript, SQL, FetchXML. Platform: Power Apps, Power Automate, and XrmToolBox.
Software Engineer – Mid Java Fullstack
- GRiT Solutions
- Lisbon
- May 3
The ideal candidate will have a strong background in Java and client-side JavaScript frameworks such ... Qualifications: 3+ years of professional software development experience using Java Experience with client-side 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
Angular Developer
- 99x
- Viseu
- May 6
develop and maintain web applications, implement responsive designs using HTML, CSS, TypeScript, and JavaScript



































