react English-speaking jobs in Espinho

DevOps Infrastructure Engineer to support and scale a market-leading, ultra-low latency algorithmic trading platform. Responsibilities include infrastructure automation, CI/CD pipeline modernization, and low-level system performance across bare-metal and virtualized server clusters. Requires 3+ years of DevOps or SRE experience, expert-level Python and Bash scripting, and deep understanding of Linux/UNIX OS fundamentals, kernel behavior, and the TCP/IP stack.

Business Analyst for a national banking project. Requires a Master's Degree in a relevant field, experience as a Business Analyst, and experience working in banks. Proficiency in English is mandatory, French is a plus.

Venture Capital Investor Accelerator is an 11-week apprenticeship-style program providing hands-on experience in deal sourcing, due diligence, portfolio support, and fund strategy.

Technical Consultant to support high-impact projects. Analysis, design, and implementation of system integration solutions. Technical support and maintenance of integrated platforms. Proven experience in integration systems, virtualization (e.g., VMware, Hyper-V), and Microsoft Server.

Senior Epidemiological Programmer will lead development of datasets and conduct longitudinal analyses for observational studies in virology. Requires experience with EMR and claims data, statistical programming (SAS/R), epidemiological study design, and managing multiple studies.

Founding Marketing Lead to build growth from beta to 10k users. Develop marketing strategy, community building, brand storytelling, and experimentation. Lead PR, user-generated content, and early marketing budget management.

Lead and grow a team of engineers building AI-powered procedures for customer service. Manage delivery of the product roadmap, collaborate with engineering teams, and drive operational excellence.

Principal AI Engineer will own the architecture of the VLA, video, vision, and spatial model stack, enabling natural-language reasoning and autonomy across the platform. Set the AI research agenda, own the data flywheel strategy, and mentor the AI engineering team.

Optimization Scientist will model healthcare operational problems using Mixed-Integer Programming (MIP). You will translate academic research into practical solutions, formulate MIP models for scheduling, staffing, and resource allocation, and design objectives to improve efficiency.

The Head of Product & R&D owns the vision, strategy, development, and commercial success of MACH's product portfolio. This role leads Product Management and R&D to deliver high-quality, innovative solutions.

Cybersecurity Risk Consultant will conduct risk assessments, analyze vulnerabilities, and develop mitigation strategies for clients. Requires 3+ years of experience in cybersecurity risk assessment, strong knowledge of security frameworks, and excellent communication skills in English.

Backend Engineer responsible for the full software development lifecycle using Java and other technologies. Experience with high concurrency, client-server protocols, and design patterns is required. Excellent communication and problem-solving skills are essential.

Data Scientist to build data-driven products by turning complex data into actionable insights and deployable models. Develop and validate statistical and machine learning models, translate results into clear narratives, and create reusable data science assets. Requires a Bachelor's degree in a quantitative field and 3+ years of experience applying data science/advanced analytics. Strong Python, SQL, and experience with Databricks are needed.

FO SCM Consultant to design and implement business solutions, with a focus on Supply Chain, Retail, and Manufacturing. Requires 3+ years of experience in ERP solutions, AGILE methodology, and strong communication skills.

Fullstack Developer to join an Agile team and contribute to the development, modernization, and maintenance of web applications.

Senior Java Software Engineer to drive technical work, provide guidance, and deliver complex projects. Requires deep understanding of software engineering concepts, experience with the full software development lifecycle, and strong communication skills.

Develop and optimize electrotechnical components for industrial production. Design, test, and validate electrotechnical systems while ensuring quality and safety standards.

Citrix Expert needed for secure, scalable, and high-performance Citrix environments. Requires expertise in Citrix CVAD, NetScaler, and ADM, as well as scripting, automation, and troubleshooting. Strong communication and collaboration skills are essential. Relevant Citrix certifications are a plus. Must reside in Portugal.

Conduct research, analyze data, and develop innovative solutions for complex computer science problems.

Cloud DevOps Engineer will design, implement, and maintain CI/CD pipelines using AWS and GitLab. Responsibilities include automating application deployments, managing containerized applications with Docker and Kubernetes, and building scalable cloud environments with Terraform.