440 frontend developer English-speaking jobs in Lisbon

Guidewire Claim Center Developer Equação IT is a company focused on boosting technology and solid solutions

The opportunity We are seeking a talented and motivated Software Developer to join our Tax Technology

Strong technical breadth across backend, frontend, DevOps, and cloud-native architectures.

Backend Engineer (Node.js) to design, develop, and maintain scalable backend services. Build RESTful and GraphQL APIs, collaborate with cross-functional teams, and optimize applications for performance.

Full-Stack Developer → CTOAssimetria – Remote (Portugal)Full-TimeAbout AssimetriaAssimetria is a SaaS

Senior Python Developer needed with at least 5 years of experience and good English (minimum B2 level). Must have a valid residence permit or visa for Portugal.

Contribute actively as a Lead back-end developer.

Design, develop, and maintain cloud-based applications using Azure services. Implement Azure Functions, Service Bus, and Data Factory. Write C#/.NET code and execute tests. Collaborate with teams to define, design, and ship features. Troubleshoot and resolve issues.

Aubay Portugal seeks a Middle Python Developer with at least 3 years of experience and a good command of English (minimum B2 level). Must have a valid residence permit or visa for Portugal.

environments through long-term, high-impact technology projects.We are currently looking for an APIGEE / AXWAY Developer

. • Professional experience as a Tableau Developer (at least 2 years). • Proficiency in Tableau Desktop

in English (Mandatory)These are the essential skills:+ 5 years of experience with:Experience inJava Developer

Senior Java Developer with minimum 7 years experience in Java development, Spring, microservices architecture, and Cloud platforms (AWS, Azure, or GCP). Must have experience with CI/CD environments, messaging systems (RabbitMQ, Kafka), and SQL. Must reside in Portugal or have legal authorization to do so.

Develop business-facing dashboards and data visualizations using Power BI Desktop & Service. Expert in data modeling, DAX, Power Query, and SQL. Requires at least 6 years of experience.

integration in our internal team/client, professionals with the following profile:Senior OutSystems Developer

Develop and maintain scalable backend systems for AI assistants using Python and FastAPI. Build REST APIs, integrate AI-driven features, and collaborate with front-end teams.

Senior React Developer needed with 5+ years of experience. Must have experience with Next.js and JavaScript. Knowledge of Redux, Web Services, REST APIs, and Cloud environments is a plus. Fluency in English required.

Lead Java Developer responsible for the development and maintenance of a trading platform. Requires 8+ years of Java experience, including 2+ years as a team lead. Must have in-depth knowledge of multithreading, concurrency, and low-latency systems. Experience with Agile/Scrum methodologies and tools like Jira and Confluence is essential.

Dynamics 365 Developer needed with 5+ years of experience in Field Service modules and Microsoft Azure integrations. Must be proficient in English and Microsoft implementation best practices.

Backend Software Engineer (AI Training & Language Specialist) will contribute to the advancement of Large Language Models (LLMs) by developing Motoko code, providing feedback on the language, and participating in AI training efforts.