freelance English-speaking jobs in Valongo

KCS IT seeks a .NET Developer with 4+ years of experience in similar roles. The ideal candidate will have a Bachelor's degree in a computer-related field, proven experience in .NET development (C#), strong expertise with WPF, XAML, and MVVM design patterns, and experience working with REST APIs, JSON, and asynchronous programming. Fluency in English and Portuguese is required.

Senior Financial Analyst to support financial planning, reporting, and strategic decision-making. Collaborate with business leaders, prepare financial reports, and analyze KPIs. Support M&A activities including QoE and synergy models. Leverage data analytics and AI tools to enhance forecasting and reporting.

Sales Trainee internship for 6 months in Porto Salvo, Portugal. Fluent Portuguese and English required. Must be a university student with a Bachelor's or Master's degree, preferably in Marketing or Business/Economics.

Senior DevOps Engineer needed to provide functional support, test applications, and interact with IT teams. Responsibilities include incident management, application environment design, and infrastructure monitoring. Requires expertise in RedHat Linux, cloud technologies, and automation tools. Strong 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.

MoonPay seeks a Senior Platform Engineer to improve the reliability and scalability of their PaaS solution. Responsibilities include improving infrastructure as code, building monitoring and alerting mechanisms, and lifecycle management of Kubernetes clusters. The ideal candidate has strong systems administration skills, platform engineering/SRE experience, and experience working in a regulated industry.

Design, develop, and maintain applications using the Appian BPM platform. Integrate Appian with external systems and collaborate with business analysts to deliver scalable solutions.

Software Engineer responsible for the development, enhancement, and operation of core business systems. Develops products using Java 17+, Spring, Spring Boot, and RESTful APIs. Experience with Kafka, RabbitMQ, SQS, SQL, PostgreSQL, Jenkins, Ansible, AWS, Docker, Kubernetes, and agile methodologies required.

Advisory role for a cybersecurity company focused on Africa's digital economy. Provide strategic guidance on product, commercial, and delivery priorities. Support platform rollout, customer acquisition, and financial strategy.

Electrical Engineer needed for construction, testing, and deployment of a full-scale wave energy converter. Responsibilities include installation, inspection, repair, and maintenance of low to medium voltage systems, equipment, and distribution systems. Minimum 5 years experience with medium voltage equipment required.

Backend Software Engineer needed for international team developing and operating core systems. Responsibilities include designing and implementing Java microservices, RESTful APIs, and containerized environments. Requires experience with Java 17+, Spring Boot, relational databases, Docker, and Kubernetes.

Senior Golang Engineer will develop backend services in Go in EKS and Lambdas, focusing on product data and lifecycle management.

Clinical Study Managers oversee the operational execution of clinical trials, managing timelines, budgets, and vendor coordination.

We are seeking ambitious entrepreneurs to build and scale RetailTech startups. You will own your startup, receive personalized development support, and benefit from access to a network of top founders, investors, and talent.

Thales S21sec Portugal seeks an experienced CyberArk Specialist to design, implement, and maintain their Privileged Access Management (PAM) environment. The ideal candidate will have a strong background in identity and access security, CyberArk suite components, and enterprise integrations.

Senior Java Full Stack Developer with 5+ years of experience needed for international Tech Hub project. Responsibilities include application configuration, unit testing, and contributing to design and code reviews. Must have experience with Spring Boot, SQL/NoSQL databases, REST APIs, React, Next.js, DevOps tools, and application architecture. Hybrid work model with 2 days per week in Lisbon office.

Senior Software Engineer will design, implement, and maintain the backbone of Sensei's real-time autonomous retail platform. Responsibilities include developing scalable microservices, real-time data pipelines, and APIs. Collaborate with Computer Vision, Data Engineering, and DevOps teams to ensure system performance, reliability, and scalability.

Deploy and manage software solutions, providing application support and troubleshooting technical issues. Experience with Linux environments, web servers, and CI/CD tools is required.

Procurement Specialist to support daily operations, ensuring compliance with policies. Manage contracts, purchase orders, and supplier relationships. Requires 4-5 years of procurement experience, strong organizational skills, and fluency in Portuguese and English.

Responds to clinical inquiries regarding marketed and developmental Gilead products. Presents scientific and clinical data. Identifies and develops regional and national opinion leaders. Assists with sales force training and Gilead Phase IV programs. Collaborates with internal Gilead personnel and external stakeholders. Travels frequently for appointments, meetings, and conferences.