react English-speaking jobs in Espinho

Senior Electrical Engineer to provide engineering support for LV and MV electrical systems during projects, plant modifications, and shutdowns. Prepare and review technical documentation including SLDs, cable schedules, and load lists. Collaborate with multidisciplinary teams and ensure compliance with project and internal requirements.

Define technical foundations for iOS development, set code design standards, and review processes. Work with product managers and developers to architect mobile applications. Possess 10+ years of professional experience with 4+ years in iOS app development. Expert in modular app architectures, Swift, SwiftUI, Combine, and Swift Concurrency.

Java Developer (Senior) will design, develop, and maintain Java-based applications and services. Requires a Bachelor's degree, +2 years of experience, strong Java 8+ and Spring Framework knowledge, database experience, and proficiency in GIT and Agile methodologies. Fluent English is required.

Develops and implements automation/robot programs for existing and new production equipment. Verifies, optimizes, and tests concepts. Plans program launches and provides training. Requires 3 years of relevant experience in automation, electrics, and mechanics. Knowledge of Excel and SAP is necessary.

Supervise daily housekeeping operations to ensure cleanliness and luxury standards. Lead and motivate a team, manage guest requests, and ensure compliance with regulations.

Portuguese-speaking FX Retention Agent needed with at least 1 year of experience. Must be a confident communicator and skilled closer.

Lead Backend Engineer (Golang) to design and develop scalable, distributed backend applications and microservices for a decentralized cloud platform. Requires strong expertise in Go, production-grade peer-to-peer (P2P) systems, and distributed systems.

Senior Accountant will assist in month/year-end close processes, balance sheet reconciliations, and journals. The role requires experience in producing year-end accounts and preparation for audit, strong technical knowledge of statutory accounting, and proficiency in English.

Provides technical expertise and guidance to resolve complex customer problems. Contributes to customer problem resolution and collaborates with engineering teams to identify and resolve serviceability issues. Designs, installs, configures, and optimizes Cisco products and services.

Python Developer sought for dynamic team. Experience in web solutions development, API REST, performance optimization, and process automation required. Must have proficiency in version control tools (Git, Gitlab, SVN) and English communication.

As a Sales Engineer, you will act as a strategic technical advisor supporting complex, multi-country sales engagements. You will lead discovery sessions, map customer transaction flows, and design scalable solution architectures. You will confidently position the commercial value of Sovos solutions and influence technical and business stakeholders.

Senior DevOps Engineer to develop and maintain monitoring systems, identify security and performance issues, and ensure system reliability. Experience with microservice architecture, cloud technologies, CI/CD, and containerization is required.

Software Developer will participate in the full lifecycle of .NET and Angular/React web applications, collaborating with teams on analysis, design, implementation, testing, and deployment.

Mercor seeks a Business Owner/Founder to review and assess domain-specific documents, provide feedback, and contribute to evaluation projects. Requires a Bachelor's degree, 2+ years of relevant experience, and proficiency in Excel, PowerPoint, and Word.

Clinical Research Associate supporting site selection, initiation, monitoring, and close-out visits. Requires a university degree in a scientific discipline or healthcare, at least 1 year of on-site monitoring experience, and fluency in Portuguese and English.

Contract Management Specialist to manage land lease agreements for renewable energy projects in Portugal. Responsibilities include maintaining agreements, building landowner relationships, monitoring contractual obligations, and coordinating with Legal. Requires a Bachelor's degree, 2+ years of experience managing land lease agreements, and proficiency in English and Portuguese.

Provide French-speaking customer support via phone, email, and chat. Assist with product and service inquiries, document interactions, and collaborate with team members.

Industrial Engineering intern to map and document CarboCode's facilities, supporting HACCP and ISO 22000 certification. Responsibilities include surveying piping systems, developing P&IDs, and preparing layout drawings. Requires AutoCAD proficiency and the ability to identify piping systems and components.

Conduct advanced penetration testing and red team assessments across IT, OT, and factory environments to identify security risks. Evaluate products and solutions, support compliance with international security standards, and translate technical findings into actionable insights.

Customer Service Agent needed for a dynamic project in Lisbon. Provide Slovak-language support via phone, email, and chat. Resolve customer issues and ensure satisfaction. Fluent Slovak and good English required.