freelance English-speaking jobs in Valongo

Lead product development for OneFootball's OTT video content experience across mobile, desktop, connected TV, and the OneFootball Embed Player. Serve as the voice of video customers, ensuring products meet diverse fan base needs. Research, prioritize, and align features with the overall OTT video strategy. Provide product direction for Live and On-Demand Video squads, collaborating with stakeholders and partners.

Salesforce Developer Lead will design, implement, and test Salesforce solutions. Requires 8+ years of Salesforce development experience, proficiency in Apex, Visualforce, Lightning Components, and integrations, and strong technical leadership skills.

Drive revenue growth by managing the full sales cycle for the European market. Proven track record of B2B SaaS sales exceeding quotas and closing deals valued at $50,000 or more.

Software Engineer to design, write, and test high-quality software applications. Collaborate with architects and stakeholders to define technical solutions and ensure quality, performance, and scalability.

Full-Stack Developer will restructure and enhance Cloud-based Web Applications. Responsibilities include UI Development, backend development in a Microservices architecture, and integrating legacy systems. Requires at least six years of .NET Core (C#) experience, proficiency in TypeScript and React, and knowledge of Azure services.

Data & Platform Architect will define and lead the target architecture for HAVI's Azure and Databricks-based Data & Platform landscape.

Marketing Designer needed to create compelling visual storytelling across digital and print channels. Collaborate with marketing teams to design impactful assets and ensure brand consistency. 2+ years of design experience and expertise in Figma and Adobe Creative Suite required.

Provides administrative support to the office and assists the Freight Team with billing activities. Responsibilities include managing office supplies, coordinating vendor relationships, and processing invoices. Requires fluency in Portuguese and English.

Provide top-tier travel support via chat, calls, and emails. Handle hotel, flight, car, and rail bookings. Maintain up-to-date knowledge on suppliers, destinations, and systems.

Rust Developer (m/f/d) will work on a DevOps team focused on creating a travel proposition within microseconds. The team uses Rust for the backend, React for the frontend, and AWS CodePipeline for CI/CD pipelines. The infrastructure is a combination of traditional services, AWS Lambda, and managed services. The role involves optimizing the processing of asynchronous requests, building management interfaces, and improving code performance, reliability, and quality.

Data Scientist specializing in Computer Vision, NLP, and Deep Learning to build smart ML models using image, text, audio, and tabular data. Experience with Python, PyTorch or TensorFlow, Docker, CI/CD, and testing frameworks required.

Marketing Assistant will support brand plans, campaigns, and initiatives. Responsibilities include creating marketing materials, coordinating projects, analyzing market data, and ensuring compliance with regulations.

Senior Full Stack Engineer will own outcomes by building, running, and improving the platform used by translators, customers, and internal experts. Responsibilities include modernizing and extending the front end (Vue.js + TypeScript), contributing to backend services and databases, and collaborating with product managers and designers.

Senior Backend Developer (Node.js) needed to build efficient, scalable solutions. 5+ years Node.js experience required. Must have knowledge of CI/CD, OOP principles, Serverless, and AWS services. Strong documentation and communication skills are essential.

Full-cycle B2B SaaS sales role for a Business Development Manager who builds pipeline, runs a disciplined sales process, and closes deals independently.

Senior Application Engineer to manage, optimize, and integrate business-critical applications. Responsibilities include system administration, automation, data modeling, and project leadership. Requires a Bachelor's degree and 5+ years of experience in system and application administration.

Senior Mechanical Engineer to lead, oversee, and contribute to the development and design of Engineering projects in the industrial sector. Must have a Master's degree in Mechanical Engineering with a focus on Fluid Mechanics and Energy or Production and over 5 years of experience in Industrial Mechanical projects. Proficiency in English and software such as Excel and Caesar II is required.

Growin seeks a .NET Developer with experience in creating and optimizing web-based Microsoft apps, ASP.NET, Entity Framework, Core, and Web API. Must have SQL Server skills and proficiency in English and/or French.

Optimize and manage Google Ads campaigns to improve performance and ROI. Analyze campaign results and prepare performance reports. Minimum 1 year of hands-on Google Ads experience required. German C1/C2 (spoken & written) mandatory.

Senior Oracle BRM Developer will support billing operations and empower the billing team. Responsibilities include system expertise in Oracle BRM, training and enablement of the billing team, and operational support. Must have proven technical expertise in Oracle BRM for 3 or more years, strong knowledge of SQL, and excellent communication skills.