freelance English-speaking jobs in Valongo

Junior Back-End Developer with 2+ years of experience building microservices-based architectures using Java 11 or higher, Spring Boot, Spring Data, and JPA/Hibernate. Experience with PostgreSQL or other relational SQL databases is required.

Senior QA Tester Engineer to design, develop, and maintain automated test suites for a cross-media measurement platform. Experience with API testing, Playwright, and CI/CD tooling required.

Sales Engineer to drive sales growth within the vehicle and automation industry. Identifies new business opportunities, builds customer relationships, and provides technical support. Requires a Master's degree in Engineering and experience in technical sales.

Application Security Analyst will identify vulnerabilities, assess risks, and collaborate with teams to mitigate them. Responsibilities include executing scans, monitoring threat intelligence, and generating reports on vulnerability status. Requires experience with vulnerability management tools, application security testing, and ticketing systems. Fluency in English is required.

QA/BA for Treasury Solutions needed. Bachelor's or Master's degree in IT, Project Management, or related field. Solid experience with Agile Methodology, Jira, Confluence, Test Case Design, SQL, and UML. Banking or Financial knowledge preferred. Excellent English skills and strong communication and teamwork abilities.

FOX IT seeks Junior and Mid level DevOps to join an international project. Responsibilities include developing and maintaining microservices, designing cloud-native solutions using AWS, and participating in DevOps activities.

SAP PPDS Consultant will collaborate on DT/IT Production Planning projects and support the rollout of the Group Template model.

Senior Data Engineer to design and deliver robust data solutions in a Microsoft Azure environment. Requires experience with Azure Data Factory v2, Azure Synapse Analytics, Azure Databricks (Spark 3.x), Python (3.x), and PySpark.

Lead and mentor a team of Data Engineers, designing and building scalable data platforms and pipelines. Shape the organization's data strategy, connecting data across teams and products.

UI/UX Designer will craft intuitive digital experiences for web and mobile platforms. Collaborate with product and engineering teams to translate business needs into impactful designs. Must have 4+ years of experience in UI/UX design and proficiency with Figma.

Define and execute integration platform strategy across product lines. Collaborate with R&D, development, and product teams. Manage product lifecycle from planning to release. Design scalable solutions and integrate multiple systems.

Lead DevOps Engineer to own AWS infrastructure strategy and drive automation. Experience with Terraform, CI/CD, and production SaaS environments required.

Clinical Research Associate II will conduct site visits, ensure protocol compliance, and collaborate with investigators. Requires a Bachelor's degree, 2+ years of experience, fluency in English, and knowledge of clinical trial regulations. Must be able to travel 60% of the time.

BrainRocket seeks a Senior Motion Designer specializing in 2D animation to lead visual direction and execution of video projects. Responsibilities include developing animations, collaborating on concept ideation, and mentoring junior designers. Requires 5+ years of experience, proficiency in After Effects and Adobe Creative Suite, and a strong sense of composition and storytelling.

DesignRush seeks a Senior Marketing Journalist to create original stories in AdTech, MarTech, and branding. Responsibilities include publishing daily news, features, and explainers, identifying story leads, and partnering with executives for co-branded content.

IT Business Analyst to join the IT CIB Financing Operations team, responsible for Loan IQ maintenance and support. Requires 3+ years of experience as an IT Business Analyst, mandatory experience in Banking or Fintech environments, and hands-on Loan IQ experience.

Design, develop, and maintain backend services using Java and Spring Boot. Build scalable, cloud-ready applications with experience in cloud environments (AWS, Azure, or GCP). Collaborate on frontend development tasks (Angular or React experience is a plus).

Internal Recruiter will collaborate with hiring managers to identify staffing needs, source candidates, conduct interviews, and manage the recruitment process. Must be fluent in English, have 1-2 years of corporate experience, and possess ambition and a target-driven mindset.

Lead Full-stack Engineer to shape and deliver high-impact digital products. Experience building modern full-stack applications, frontend frameworks (React, Vue, Next.js), cloud platforms, and API design is required.

Senior Data Scientist - Product Insights will own analytics for a major product area, turning data into actionable insights and recommendations. Responsibilities include defining key success measures, uncovering trends, and driving product strategy. The role requires strong quantitative skills, experience with SQL, Python or R, and expertise in statistical analysis, A/B testing, and web analytics.