freelance English-speaking jobs in Valongo

Customer Service Specialists needed for on-site role in Lisbon. Provide phone, email, and chat support to French-speaking customers. Must have C2 French and B2 English.

German-speaking Customer Consultants are needed for a Retention team. Responsibilities include managing inbound calls regarding contract cancellations, advising customers on services, and meeting quality and performance standards.

KCS IT seeks a Fullstack .NET/React developer with 5+ years of experience. Expertise in .NET Core/.NET 6+, C#, Entity Framework, React.js, TypeScript, Redux, and UI frameworks is required. Experience with RESTful APIs, GraphQL, WebSockets, Microservices architecture, and cloud services is also necessary.

Python Developer to design, develop, and maintain data extraction, processing, and transformation solutions. Experience with GCP, PL/SQL, and Python data processing libraries required.

UX/UI Designer will create intuitive and engaging interfaces for a sports and fitness platform. Responsibilities include user interface design, wireframing, prototyping, user research, and collaborating with teams. Requires a bachelor's degree in UX/UI Design or related field and 1+ year of experience.

Experienced Frontend Developer to build scalable web interfaces for international clients. Develop user-centric interfaces using React JS, collaborate with backend teams, and ensure adherence to frontend best practices.

Lead IHV alliances in EMEA or APAC regions, developing and maintaining relationships with senior executives at strategic partner organizations. Manage and grow a team of Business Development Managers, identifying and pursuing new business opportunities.

IT Administrator needed for a challenging international bank project. Responsibilities include scripting, environment setup, software deployments, vulnerability management, and system administration. Requires Linux administration, scripting, network concepts, cloud development, firewall knowledge, and fluency in English.

Nortenho language specialist needed to train AI models. Converse with AI, verify accuracy, document errors, and suggest improvements. Bachelor's degree preferred, native fluency and deep understanding of dialect nuances required.

Backend Engineer to design, build, and scale features for Squarespace Social products. Collaborate with teams to improve codebase and performance. Requires 5+ years of Go, Java, or similar language experience and 2+ years with relational databases.

Decskill seeks a C# (.NET) Backend Software Engineer to design, develop, and optimize platform components. Responsibilities include collaborating with the team, following development processes, and producing and testing code. Requirements include a Bachelor's or Master's Degree in a relevant field, 3+ years of software development experience, and strong C# coding skills.

BrainRocket seeks a Procurement Manager to optimize and scale procurement systems. The role involves system administration, process improvement, user training, strategic sourcing, supplier management, data integrity, and reporting. Requires 8+ years of procurement experience, P2P/S2C platform management, and a proven ability to optimize processes and systems.

Shape the future of how enterprises build, secure, and scale on Salesforce. Own the product roadmap for the only 100% Salesforce-native DevSecOps, Data Protection, and Security platform trusted by Fortune 100 companies. Define and ship products that create entirely new categories within the Salesforce ecosystem. Lead the next wave of AI-powered DevOps capabilities built on Agentforce.

Strategy & Development Manager will analyze asset performance, develop financial models, and provide strategic recommendations for growth across hospitality, sports, and leisure assets.

ETL Consultant to design, develop, and manage ETL processes for data extraction, transformation, and loading into Workday and Workforce systems. Requires 5-10 years of experience in ETL development, strong SQL expertise, and experience with Workday or similar platforms.

Leads the partnerships function, builds long-term commercial value, and owns business development. Manages a team of Account Managers, develops partner relationships, and ensures partnerships meet commercial objectives. Identifies and unlocks new opportunities, and drives operational efficiency and process development.

Wire IT seeks an Agile Delivery Lead with proven experience in agile environments and strong knowledge of Agile frameworks. The role requires managing delivery across multiple squads, facilitating ceremonies, and coordinating dependencies across teams.

Unreal Engine Developer (C++ / Mobile) will design, build, and optimize interactive systems, UI experiences, and multiplayer features for a cross-platform Virtual Swimming platform.

Design, build, and maintain .NET applications. Participate in code reviews and provide recommendations for continuous improvement. Guide junior developers and create scalable, robust solutions.

DevOps Engineer to analyze, reproduce, and fix incidents, perform root cause analysis, and monitor data pipelines and infrastructure. Experience with AWS, Terraform, and GitLab required.