623 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
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 Developer
- Syffer
- Portugal
- May 15
Javascript Developer will contribute to the design and integration of AI-powered features and services. Collaborate with teams to translate AI use cases into software solutions. Build and integrate APIs and third-party services.
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 / 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
Customer Success Manager
- Jscrambler
- Porto
- May 16
As leaders in Client-Side Protection and Compliance, we have pioneered the integration of advanced JavaScript
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
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
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.
Technical Developer – Dynamics 365 Customer Service (JavaScript & CIF, Europe)
- Talent Connect
- Lisbon
- February 24
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
.Net Fullstack Developer - Up To €65.000 A Year
- Adentis Portugal
- Portugal
- May 4
Senior Frontend Developer to join a leading IT consultancy in Lisbon. Develop and maintain web applications using ReactJS, NextJS, HTML, CSS, TypeScript, and JavaScript. Minimum 5 years of professional experience in modern front-end technologies required. English proficiency at least B2 level.
Software Engineer – Mid Java Fullstack
- GRiT Solutions
- Portugal
- 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
Retail & E-Commerce | Senior Frontend Developer
- Devoteam
- Portugal
- May 16
code;Familiarity with automated JavaScript testing, specifically testing frameworks such as Jest, Mocha ... libraries;Optimizing applications for high performance;Keeping up with the latest developments in the JavaScript ... best practices.QualificationsBachelor's degree in the IT area or equivalent;Highly proficient with the JavaScript ... rendering and its benefits and use cases;Ability to write efficient, secure, well‐documented, and clean JavaScript
Full Stack Developer - Mosano
- Mosano
- Portugal
- May 1
Developer; Strong proficiency in JavaScript and TypeScript; Solid experience with React (and optionally ... ResponsibilitiesDevelop and maintain scalable web applications using JavaScript/TypeScript; Build responsive ... Troubleshoot, debug, and optimize application performance; Ideal Profile3+ years of experience as a Fullstack JavaScript
Staff Frontend Engineer (React/Next.js) - Remote Portugal
- HumanIT Digital Consulting
- Porto
- May 2
mastery : Expert-level understanding of core JavaScript beyond frameworksReact.js and Next.js expertise ... build robust applications using React.js and Next.js, mastering both modern frameworks and vanilla JavaScript ... LOOKING FOR (Required)10+ years of professional experiencein high-level frontend engineering rolesVanilla JavaScript
Senior Frontend Developer
- WIRE IT
- Lisbon
- May 3
Senior Frontend Developer with 8+ years of experience in JavaScript, React, HTML5, CSS3, and Azure. Remote position in Portugal.











































