react English-speaking jobs in Espinho

Develop, execute, and optimize Catawiki's global CRM strategy across email, app push notifications, in-app messages, and web banners. Drive customer activation, retention, and conversion. Collaborate with Product Management, Brand, and Country Managers to design impactful CRM initiatives.

Drive business development across multiple markets, own projects from conception to completion, and collaborate with cross-functional teams to achieve ambitious goals.

Senior Finance & Control Officer to execute the Group's consolidation process, analyze intra-group transactions, and prepare financial statements. Requires a Master's degree in a relevant field, 3+ years of experience, strong SNC and IFRS knowledge, and advanced Excel skills.

Leads the establishment and scaling of Link11's new Technical Customer Excellence Hub in Lisbon, a 24/7 T1/T2 organization of Security Engineers. Responsible for local P&L, employer branding, and operational KPIs. Drives the transition from BPO to in-house operations, ensuring service continuity and quality. Owns service KPIs (NPS, SLA, churn) and overall customer satisfaction.

Side is seeking a part-time Polish Player Support Advocate to provide top-tier support to gamers. Responsibilities include resolving technical issues, responding to customer queries, and ensuring a positive customer experience. Fluency in Polish and English is required.

Trainee HR Analyst will provide support to the principal HR technical resource for various HR systems. Responsibilities include troubleshooting, configuration support, executing test scripts, and assisting with data quality management. The ideal candidate will have a degree in a related field, experience with data analysis, and strong analytical skills. Fluency in English is required.

Capital Analytics Knowledge Specialist will work in teams to solve complex client issues using analytical tools and support the development of proprietary tools. This role requires 2+ years of experience on major capital projects, modeling capability using Excel, and strong analytical and quantitative skills.

Leads daily operations for customer service systems, distribution, import/export, and order processing. Coordinates logistics system launches and optimizes internal storage and transportation processes. Manages warehouse operations and ensures timely distribution of materials and finished products.

Bookkeeper needed to manage financial transactions, ensure accurate records, and handle client communication. Requires previous bookkeeping experience, proficiency in accounting software and Excel, and strong attention to detail.

English Trainer to design, deliver, and evaluate training programs for a global sleep technology leader. Responsibilities include needs assessments, curriculum development, and program improvement. Must have native or proficient English (C2), strong organizational skills, and experience in BPO production or customer service.

Lead a team of Concierge Advisors, ensuring excellent service and customer satisfaction. Manage team performance, handle client requests, and contribute to process improvements. Fluency in French and English required.

Full-Stack Developers will design and evaluate software engineering tasks for a leading AI lab. Responsibilities include creating coding scenarios, reviewing peer submissions, and ensuring alignment between specifications, code, and expected outputs.

Develop .NET C# applications using Kafka and Elasticsearch. Deliver reliable software as part of a team, participate in code reviews, and contribute to documentation.

Senior Product Architect will govern digital portfolio and investment decisions, manage the product lifecycle, and lead change management initiatives. Requires a Bachelor's degree and 10+ years of experience in digital strategy, product management, or a similar role.

Senior Data & Analytics Engineer with 8+ years of experience needed. Expertise in SQL, ETL processes, and Power BI dashboard development required.

Lead Product Designer to shape and execute Client and Worker experiences across Deel's Fintech platform. 8+ years in Product Design, 3+ years at a senior IC level, and 2+ years managing designers. Portfolio showcasing AI-powered product experiences or AI tool usage. Experience in fast-moving product companies, strong B2B and B2C design skills, and mobile experience.

Cyber Security Cloud Engineer needed for a retail sector project. Support Azure cloud environments, assess security risks, and contribute to secure cloud architecture design. 2-4 years of experience in Cybersecurity, Cloud, or Infrastructure roles with a strong security focus required. Hands-on experience with Microsoft Azure and understanding of Identity & Access Management, Cloud security fundamentals, and Networking security concepts are essential.

Ethena Labs seeks a People/HR Coordinator to manage the operational engine of their growing People team. This role requires 2+ years of experience in a lean HR function, fluency in HRIS and ATS tooling, and a proven ability to identify and solve operational inefficiencies. The ideal candidate will ensure a seamless employee lifecycle, maintain HR data integrity, and partner with Talent Acquisition.

Provide technical support for dental professionals using a digital orthodontic aligner system. Process and assess digital orthodontic cases, deliver support, and conduct demonstrations. Requires a dental background, digital orthodontic workflow knowledge, and experience with intra-oral scanners, CAD/CAM systems, and digital design software. Must be tech-savvy, organized, and fluent in Italian and English. Travel required.

BPMN Consultant to analyze, design, and document efficient business processes. Requires experience with BPMN notation, process design tools, and collaboration with operational teams.