freelance English-speaking jobs in Leiria District

Principal SRE will partner with Engineering teams to design resilient services and promote SRE practices. Responsibilities include defining and promoting SRE practices, identifying reliability risks, and reducing operational toil. The role requires experience in Site Reliability Engineering, software engineering, and cloud platforms.

As a Delivery Assurance Manager, you will lead the super tribe's product delivery roadmap, manage dependencies and risks, and ensure seamless delivery through effective prioritization and stakeholder collaboration. You will lead a team of Agile Coaches and Delivery Assurance Leads, bridging product strategy with operational execution.

Implementation Specialist will develop and maintain business applications, including installation, customization, testing, and support. Responsibilities include coding, executing unit testing, and applications support. Requires a Biomedical engineer qualification, SQL scripting knowledge, Java programming, and proficiency in English and Spanish.

Marketing Specialist will execute marketing activities across branding, content development, demand generation, sales support, and digital marketing channels. The role requires 2-4 years of experience in a marketing position, preferably within a B2B, consulting, professional services, or corporate environment.

HR Business Partner will support all HR areas in Lisbon and Porto centers. Responsibilities include employee career development, talent development initiatives, workforce planning, performance management, and employee relations. Requires a degree in Human Resources, Organizational Psychology, or a related field, at least 2 years of experience as an HR generalist, and 3 years as an HR business partner. Fluency in English and Portuguese is required.

Drive new business for Zendesk's EMEA sales organization. Prospect into cold accounts and existing customer groups. Generate high-value pipeline through strategic prospecting.

Site Manager to oversee all project stages, manage budgets, and coordinate with stakeholders. Requires 3+ years of construction management experience, preferably in retail or office projects.

BairesDev seeks a Distributed Systems Engineer with 6+ years of experience in software development and strong Java/Scala skills. Expertise in the internals of Apache big data projects (Spark, Flink, Trino, Ozone, Iceberg, Hive, NiFi, Kafka, Hadoop) is required. Responsibilities include contributing production-grade code, debugging engine internals, and collaborating with engineering teams.

Data Engineer to build, optimize, and support data products on Google Cloud Platform (GCP). Experience with GCP tools (Dataflow, BigQuery), DBT, and data formats (Avro, Parquet) is required. Must have strong SQL skills and experience ingesting data from various sources.

Lead and manage a global material field for mechanical components across Portugal, Germany, China, and Mexico. Analyze global procurement markets and develop sourcing and supplier strategies. Manage supplier relationships, negotiate contracts, and drive cost savings.

Junior Game Developer sought to design, code, and implement game features. Part-time position with on-the-job training.

Contract Game Developer will design, implement, and maintain game features and systems. Requires 2+ years of experience, proficiency in C++ or C#, and familiarity with Unity or a similar engine.

Business Analyst to gather, analyze, and translate Front Office user needs into functional specifications. Collaborate with development teams on technical specifications and conduct functional and user acceptance testing. Contribute to 3rd level support, documentation, and production deployment.

Multimedia Intern to create engaging visual content such as videos, animations, and graphics for learning initiatives.

Vendor Planner manages supplier communication, material coverage, and inventory levels. Ensures timely receipt of purchase orders and coordinates material pickup requests. Monitors supplier delivery performance and identifies supply risks. Requires experience with ERP systems, logistics, and inventory management. Fluency in English and Portuguese is required.

Leads a new Network Optimization function, driving operational excellence and continuous improvement across 1GLOBAL's network and services. Responsible for proactive detection, investigation, and resolution of network and service issues. Defines and implements monitoring strategies, performance frameworks, and operational processes to identify service degradation and emerging risks. Manages a team responsible for overseeing network changes, defining KPIs, developing recovery mechanisms, and ensuring operational readiness. Collaborates with Network Engineering, Operations, Product, Software Engineering, Legal & Regulatory, and commercial teams. Must have strong understanding of mobile network architectures and technologies, MVNO architectures, and networking principles. Requires 8+ years of experience in the telecommunications industry with a focus on mobile core network services.

As a Quality Assurance Engineer, you will develop and support test plans and test cases, analyze software requirements, and execute automated tests. You will collaborate with cross-functional teams to ensure high-quality software delivery.

The SPARK Programme is a paid traineeship offering hands-on experience in the biotech industry. Trainees will contribute to projects, participate in workshops, and receive mentorship.

Hotel Sales Manager needed to develop and execute sales strategies, manage client relationships, and monitor sales performance. Requires 3+ years of experience, proven sales track record, and strong negotiation skills. Fluency in English is required.

Manages and updates the Dyson.com trading plan, overseeing merchandising, promotional activities, and website optimization. Executes the affiliation strategy, maximizing partner performance and driving sales. Analyzes website and category performance, identifies merchandising opportunities, and collaborates with cross-functional teams.