599 javascript English-speaking jobs in Portugal

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 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

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.

Qualifications Bachelor’s degree in the IT area or equivalent; Highly proficient with the JavaScript ... 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 ... rendering and its benefits and use cases; Ability to write efficient, secure, well-documented, and clean JavaScript

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.

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

testing.ResponsibilitiesDesign, implement, and maintain automated test frameworksDevelop test scripts using JavaScript ... improvementRequirementsSolid experience with automated testing frameworks and toolsStrong knowledge of JavaScript

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.

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.

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 (50% Front End – 50% Back End) needed for hybrid projects. Requires 3+ years experience in software development with Java (Backend) and React/Redux/ES6/LESS (Frontend). Must have experience with PostgreSQL/SQL Server, Elasticsearch, Git, K8S, Teamcity, Octopus Deploy, Docker, and Kubernetes. Fluent English required.

. +6 years of experience working with Nodejs/JavaScript.

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.

Proven experience developing JavaScript inside D365 CE. ... Technical Developer – Dynamics 365 Customer Service (JavaScript & CIF, Europe) 📍 100% Remote – EUROPA ... Key Responsibilities Develop and maintain advanced JavaScript customizations in Dynamics 365 CE. ... This is a development-focused position requiring solid expertise in JavaScript within D365 CE, advanced ... Apply Now If you are a Technical Developer in Dynamics 365 Customer Service with strong JavaScript expertise

and TypescriptDevelopment for various devices and operating systemsWhat you should bringHTML, CSS, JavaScript

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.

develop and maintain web applications, implement responsive designs using HTML, CSS, TypeScript, and JavaScript

What we're looking for: Experience in JavaScript development Expertise in JavaScript frameworks (Angular

Qualifications Bachelor’s degree in the IT area or equivalent; Highly proficient with the JavaScript ... 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 ... rendering and its benefits and use cases; Ability to write efficient, secure, well-documented, and clean JavaScript

Hotwire or similar)Any experience with modern JavaScript frameworksThe setup...Fully remote role (EEA-based ... staging environmentsWhat you'll need...5+ years commercial Ruby on Rails experienceStrong HTML, CSS and JavaScript