react English-speaking jobs in Espinho

Senior Fullstack Java Developer needed for a project in Porto (Hybrid). Develop and maintain backend applications using Java (Java 8+/Spring Boot), build frontend interfaces with Angular (8+), and design REST APIs. Fluency in French (minimum B2) is required.

Leads the development and strategy of Photoroom's cross-platform SDK, powering editing, rendering, and real-time collaboration across iOS, Android, Web, and API platforms. Builds and mentors a senior Rust team, ensuring technical excellence and scalability.

Lead online marketing and engagement activities for a personal and professional development organization. This remote, performance-based role requires 15+ years of professional experience and comfort in a results-driven environment.

Senior Full-Stack Engineer will design, build, and scale back-end services in Golang and UI/UX experiences in React. This role collaborates with the Billing and Partner team to deliver solutions that are modern, scalable, and efficient. The ideal candidate has 7+ years of experience as a full-stack engineer with exposure to SaaS products used by many customers.

Senior Java Backend Developer will lead the design and development of complex backend systems, ensuring scalability, security, and performance. Responsibilities include translating business requirements into technical solutions, mentoring teams, and staying abreast of industry trends. Requires mastery of Java, Spring Boot, Hibernate, relational and NoSQL databases, web technologies, and AWS environments. Fluency in Portuguese and English is essential.

Cybersecurity Sales Director to define and execute commercial strategy for Portugal, leading a sales team and achieving revenue targets.

Senior Web Application Developer will design, develop, and maintain user-centric web applications. Collaborate with teams to gather requirements, ensure alignment with technical standards, and support deployment and troubleshooting of Java and PHP applications.

ALTEN seeks a Digital Transformation Lead to develop and implement digital strategies for public sector clients. The role involves optimizing budgetary performance, providing high-quality citizen services, and ensuring data security.

As a French Speaker, you will process customer payments, reconcile carrier statements, and manage internal and external queries. You will also monitor unallocated cash receipts, liaise with stakeholders, and coordinate tasks within the French Bill to Cash team.

Quality Control Analyst will perform physical and chemical tests on various products, record results, and investigate out-of-specification findings.

Senior Python/Django Specialist to lead analysis, design, and development of backend solutions for a leading banking environment. Requires 6+ years of experience with Python, Django, SQL Server, and Agile methodologies.

Provides remote customer service and technical support via phone, email, and chat. Resolves customer issues, troubleshoots technical problems, and ensures customer satisfaction.

Research & Development Assistant to analyze ingredient trends, support formulation analysis, and manage supplier relationships.

QA Automation Engineer will write and maintain automated tests for iOS, macOS, Web, Android, and Windows applications. Collaborate with product, development, and delivery teams. Requires 5+ years of test automation experience, programming skills with Java and Kotlin, and proficiency in tools like Selenium, Appium, and JUnit.

Tech Lead to guide .NET and React development teams. Responsibilities include architecture definition, requirement analysis, solution delivery, team support, and stakeholder communication. Requires experience in .NETCore, React.js, Typescript, team leadership, and communication. Fluency in Portuguese and English is mandatory.

Assurance professional to perform detailed financial tests, review reports, and interact with clients across various industries. Requires a bachelor's degree, fluency in Portuguese, and proficiency in Microsoft Office.

Senior Project Manager to lead complex projects in industries such as Medical Devices, Railway, Aerospace, Defence, and Energy. Requires 5+ years of experience managing projects, strong leadership, communication, and problem-solving skills.

Product Group Architect – Consumer Identity & Access Management (CIAM) aligns Agile Release Train (ART) teams to a shared technical direction. Ensures architectural integrity, drives long-term strategic design, and supports fast, reliable digital product delivery. Works with Product Teams delivering capabilities related to consumer and customer identities, including registration, age verification, login, and Consumer Identity Lifecycle Management.

Two Scientific Initiation Grants (BII) are available within the LagusColl High Performance Collagen Glue project. Successful applicants will work on tasks related to collagen extraction, modification, characterization, and incorporation into PVAc adhesives. The grants are funded by COMPETE 2030, Portugal 2030, and the European Union.

Mendix Developer will design, develop, and deploy Mendix applications. Responsibilities include application customization, testing, documentation, and support. Requires 2-4 years of Mendix development experience, Java, JavaScript, and REST/SOAP API knowledge.