freelance English-speaking jobs in Barreiro

Java Software Developer to join a leading iGaming company's Backend department. Develop and maintain enterprise-level applications, participate in design specification reviews, and integrate with 3rd party applications. Requires 3+ years of Java experience, design patterns, multithreaded environments, SQL, and Spring Framework.

Software Developer to join the LS Retail Development team in Europe. Develop and implement LS Central software and components. Experience with web technologies, cloud services, and Microsoft Business Central is preferred.

Fullstack Developer (Java & TypeScript) needed to design, implement, and maintain web applications and enterprise platforms. Experience with Java, Spring Boot, REST APIs, TypeScript, and modern frontend frameworks required. Must have experience integrating CMS/CRM platforms with external systems. Fluent English required.

SAP EDI Business Analyst needed for end-to-end implementation of EDI connections. Delivers solutions aligned with business needs, ensuring compliance, documentation quality, and data integrity. Manages data flows between SAP EDI and external partners, analyzes requirements, and implements technical solutions. Minimum 5 years of experience required.

Nimber seeks a Systems Analyst to manage and evolve virtualized desktop environments and application delivery platforms. Responsibilities include centralized management of virtual Windows workstations, application virtualization platforms, and compute resources. The role requires strong communication, problem-solving, and technical skills, including experience with Azure Virtual Desktop and Windows 365 Cloud PC.

Provides guests with directions, information about property amenities, and local area details. Resolves guest requests and problems by contacting appropriate departments. Communicates VIP arrivals and ensures guest satisfaction. Adheres to company policies and procedures.

Critical TechWorks seeks AI Masterminds to architect, build, and optimize AI pipelines, develop and deploy machine learning models, and implement robust CI/CD workflows for AI.

Risk CPBS Team Leader will act as a liaison between corporate and local entities, coordinating projects related to implementing new regulatory requirements, improving risk management processes, and enhancing data quality. Responsibilities include assisting with the deployment of Basel 4/CRR3 and IFRS9 regulations, monitoring credit risk, and cascading credit-related policies to local entities.

Cost Manager with 8-10 years post-contract experience required. Manage bill certification, variation processes, and cost adjustments. Perform cost estimations, prepare cost reports, and analyze construction drawings. Lead cost management team, collaborate with stakeholders, and ensure adherence to QMS standards.

Provides customer support for Kraken's crypto products, including trading, staking, and deposits/withdrawals. Responds to client inquiries via text and live support channels. Assists with testing new features and monitors technical issues.

Lead and grow the Developer Experience (DevEx) function, shaping its mission, scope, and operating model. Build a strong team culture and enable engineering teams to ship faster and more reliably. Translate company strategy into a DevEx roadmap and drive adoption of a unified design.

Coordinate and validate design, deployment, and migration activities for Packet Core (PACO) nodes. Ensure software compatibility, manage design changes, and oversee testing and troubleshooting. Strong understanding of Packet Core architectures and mobile network standards required.

Data Integration Engineer will design, develop, and implement data integration solutions in a cloud environment, using Azure native services. Responsibilities include integrating external data sources, working with interdisciplinary teams, and optimizing data pipelines. Requires a bachelor's or master's degree in a related field or equivalent experience, along with proficiency in Python, Kubernetes, and relational databases.

Aircall seeks a Technical Support Specialist to provide remote support to customers globally. This role involves resolving complex technical and operational issues, collaborating with internal teams, and contributing to process improvements. The ideal candidate possesses strong communication, problem-solving, and technical skills, including knowledge of telephony routing, the OSI model, and CRM tools.

This is a non-billable engineering leadership role focused on team development, hiring, retention, and workflow improvement. The Practice Lead will guide and support their team, manage performance reviews, and oversee technical delivery and client satisfaction.

Defines AI solutions and technical direction, guiding build vs. buy decisions for AI workflows, ML foundations, and data engineering pipelines. Leads evaluation of emerging AI technologies and presents solutions to leadership and stakeholders. Connects technical solutions to business outcomes and ensures architecture decisions drive value.

Drive revenue growth and customer loyalty for Holafly's B2B portfolio. Analyze customer data, optimize the post-registration lifecycle, and execute strategies to increase average order value and product adoption. Proven B2B Customer Success experience, HubSpot and Shopify expertise, and fluency in Spanish and English are required.

SAP S/4 HANA consultant with 5+ years of experience in Controlling, Drive systems, Energy systems, Plants & components, and Process control systems. Must have a Bachelor's degree in a related field and good English skills. Travel required (80-90% remote, some to Munich).

Product Manager to own and evolve key parts of a B2C investing and trading platform. Define product requirements, work with engineering and design, and use data to inform product decisions.

Junior Order-to-Cash Specialist to support order entry, billing, collections, and reconciliations. Requires accounting knowledge, strong analytical skills, and MS Excel proficiency. ERP experience is a plus.