661 javascript English-speaking jobs in Portugal
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
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 Developer
- Digital Waffle
- Portugal
- May 1
Senior Node.js Backend Developer to build and maintain scalable backend services and APIs. Collaborate with product and engineering teams to design new features and optimize services for performance, scalability, and reliability.
Salesforce Developer - Portugal - 08/05/26
- Ibrowse
- Portugal
- May 13
Stripe.Technical Skills- Programming Languages: Apex (Salesforce proprietary language for backend logic), JavaScript
JavaScript/TypeScript Developer
- Neotalent Conclusion
- Lisbon
- May 17
JavaScript/TypeScript Developer will collaborate with engineering and product teams on a large-scale product with a focus on AI.
Javascript Lead Developer
- Emergn
- Lisbon
- April 30
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.
Creative Tech | Angular Developer
- Devoteam
- Lisbon
- May 1
development.In-depth knowledge of the Angular framework and its core features.Experience with HTML, CSS, and JavaScript
Full-Stack JavaScript Developer (Node.js and
- Trinetix
- Portugal
- May 2
We are seeking a passionate and skilled Full-Stack JavaScript Developer with at least 5 years of experience ... user-friendly applications.RequirementsMinimum of 5 years of professional experience as a Full-Stack JavaScript
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
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.
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
- 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
- MobilityNow - Connecting Worlds Securely
- Portugal
- May 4
Do you have experience with Python/Django or Java and Javascript? ... Qualifications5+ years of experience and deep knowledge on Java or Python Experience in Javascript development
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
Full-Stack Developer
- knowmad mood Portugal
- Lisbon
- April 30
experience with Python, Java or .NET, including RESTful and GraphQL API development;Strong proficiency in JavaScript
Full Stack Developer Node.js+ React
- KCS iT
- Portugal
- May 1
experience with React.js, including components, hooks, state management, and routing.Proficient in JavaScript
Full-Stack Developer
- knowmad mood
- Portugal
- May 4
experience with Python, Java or .NET, including RESTful and GraphQL API development;Strong proficiency in JavaScript
Senior Full Stack Developer
- Altar.io Technologies
- Lisbon
- May 22
back-end framewoks (like Node/Express);Professional experience in working with JavaScript frameworks ... of experience with Web Application Development, with robust knowledge, experience and at-ease with Javascript-based












































