freelance English-speaking jobs in Valongo

Senior Mobile Engineer to maintain and extend a live mobile game built with Objective-C and Cocos. Responsibilities include optimizing performance, refactoring code, and collaborating with product and design teams. Experience with legacy codebases, performance optimization, and AI tools is required.

Supports the development of photovoltaic self-consumption solutions, contributing to technical design, costing, and commercial proposals for PV projects. Assists in system design, budget preparation, procurement, and reporting.

Lead the design and development of high-performance, secure, and scalable frontend solutions using React.js and Next.js. Drive reliability through unit testing, integration testing, and a Shift-Left/TDD approach.

Automation & Industrialization Specialist will manage automation modifications for existing equipment and new projects. Responsibilities include PLC, drive, and HMI program modifications, control plan development, and robot cycle optimization. Advanced technical support for maintenance interventions and analysis of malfunctions is also required.

Integrate eCommerce systems, applications, and technologies with IT. Collaborate with teams to design efficient workflows and processes. Document end-to-end processes and provide training and support. Analyze processes, identify areas for improvement, and create process standards.

Product Engineer to support industrialization, cost optimization, and lifecycle management of products. Will collaborate with R&D, Supply Chain, and Manufacturing. Requires a degree in a relevant field and experience in product engineering, industrialization, or NPI.

DevOps Engineer will design, implement, and optimize cloud strategies, data strategies, software architecture, and DevOps practices. Requires 2+ years of experience in DevOps, cloud technologies, and development in cloud-native environments. Strong knowledge of major cloud providers (AWS, Azure, GCP) and experience with containers, container orchestration, automation tools, and CI/CD pipelines is essential.

Shanti Place seeks a General Manager to lead operations, programming, and growth for a premium community space in Cascais, Portugal. This role combines hospitality, business acumen, and community development. The ideal candidate has experience scaling service or community businesses, strong operational instincts, and a passion for building profitable, sustainable ventures.

Project Delivery Engineer will configure cloud communications services, manage customer telephony, and execute provisioning projects. Requires a Bachelor's Degree in a STEM field or equivalent experience, strong analytical and customer service skills, and excellent communication abilities.

Technical Artist to integrate visual content in slot games. Experience with Photoshop, After Effects, Unity, and Spine required. Collaborate with art and development teams to implement visual assets and optimize graphics.

Provide top-tier travel support via chat, calls, and emails. Handle hotel, flight, car, and rail bookings. Must have 5+ years of experience as a Travel Consultant and 3+ years with GDS (Sabre, Amadeus, or Galileo). Fluency in English is required.

The Senior Site Reliability Engineer is responsible for running and improving reliability engineering systems, including automation, observability, and operational tooling. The role designs and implements solutions to eliminate operational toil and embed reliability into delivery workflows. Responsibilities include leading incident response, mentoring engineers, and communicating engineering status to stakeholders.

As a System Engineer – Patch Management, you will serve as the Subject Matter Expert for Windows patching across Global Blue. You will plan, schedule, deploy, and monitor security and quality updates for Windows servers and clients using SCCM. You will also troubleshoot patch deployment issues and collaborate with application/operations teams. Experience with Citrix is a plus.

Experienced Oracle DBA Administrator needed for database operations, monitoring, and administration. Responsibilities include managing user accounts, resolving performance issues, implementing backups and restores, and executing maintenance tasks.

Microsoft Dynamics F&O Technical Consultant to test, debug, and implement integrations. Experience with data migration, MuleSoft, Logic Apps, and Power Automate required.

Software Developer to build and maintain web applications using C# and .NET Framework. Experience with JavaScript, jQuery, React, HTML, CSS, and Bootstrap is required.

Senior GenAI Engineer will design, develop, and deploy cutting-edge GenAI solutions. Responsibilities include translating business needs into technical architectures, building GenAI systems, and integrating with data sources and applications.

Helpware seeks a bilingual (English and Spanish) Customer Service Representative in Portugal to provide phone, email, and social media support to customers. Must have prior customer service experience across multiple channels and fluency in both English and Spanish.

Legal Counsel will interpret legal developments, draft and review commercial agreements, and collaborate with departments to analyze business and legal terms.

Expert Software Engineer to lead the Digital Trust product line, focusing on fraud detection and prevention across web and mobile. Responsibilities include technical leadership, cross-cutting initiatives, and partnership with product, engineering, security, sales, and marketing.