backend developer English-speaking jobs in Caldas da Rainha

Quality Analyst needed for a dynamic Lisbon project. Monitor and evaluate customer service interactions, ensuring compliance with quality standards and project guidelines. Analyze results, identify improvement opportunities, and provide feedback to operational teams.

Support Extia's growth as a Sales Administration team member. Manage client accounts, create and track project missions, and handle invoicing and accounts receivable.

Financial Controller will lead accounting, financial planning, and governance for the company. Responsibilities include managing financial reporting, analyzing results, and implementing KPI reporting. Requires a university degree in a related field, minimum 3-5 years of experience, and expertise in financial reporting systems and Excel.

Experienced Salesforce Personalization (Interaction Studio) specialist needed for analysis, segmentation, and web campaign creation. Requires 5+ years of experience, HTML, code injection, and Chrome DevTools knowledge.

Security & Compliance Engineer / Architect (Azure & OCI) will design, build, and improve secure landing zones for Microsoft Azure and Oracle Cloud Infrastructure (OCI) estates. Responsibilities include translating security frameworks into practical controls, driving container security architectures, and integrating security tools into CI/CD pipelines.

Senior Full Stack Engineer will design, build, and maintain robust systems, from intuitive frontends using TypeScript and React to scalable backends. Collaborate with product designers, product managers, and engineers to deliver end-to-end experiences. Champion privacy and security in every product.

Aubay Portugal seeks a SysAdmin/SysOps Engineer with 3+ years of experience in IT operations and infrastructure management. Essential skills include Linux systems administration, scripting, load balancing, APIs, and protocols. Experience with application servers (Apache Tomcat, MySQL, NGINX, HAProxy), monitoring platforms (Nagios, Prometheus), and fluency in Portuguese are required. Experience with Artificial Intelligence (AI) is a plus.

Leads maintenance of network solutions for corporate and Data Centre networks. Manages vendor relationships and infrastructure environment maintenance. Requires a degree in Telecommunications, Computer Science, or similar, with 3-5 years of experience in network implementation and operations. Solid knowledge of Juniper or Cisco platforms, Data Centre Infrastructure, MPLS VPN, and Firewall technology.

Nitro seeks a Senior QA Engineer to modernize Java UI and C++ unit test suites for its core product. The role involves transforming legacy test suites, expanding platform coverage, optimizing execution, and scaling CI/CD pipelines. The ideal candidate has 5+ years of experience as a QA engineer, with expertise in modernizing test frameworks, strong programming skills in Java and C++, and experience with CI/CD platforms.

Business Unit Director to manage client relationships, team of 20, and budget. Requires 5+ years experience in a similar role, project management expertise, and proficiency in Excel, PowerPoint, Portuguese, and English.

Develop and maintain Oracle PL/SQL solutions for merchandising/buying processes. Ensure database query and procedure performance, reliability, and optimization. Support existing system evolution and maintenance.

Experienced Frontend Developer to design and implement features across Angular web and React Native mobile applications. Collaborate with Product, Design, and Backend teams to define requirements and ship end-to-end features. Maintain scalable component libraries, ensuring consistency and accessibility across platforms.

Senior Frontend Systems Engineer will build complex, real-time interfaces for AML investigations and case handling. Responsibilities include developing large-scale data-driven UI systems, collaborating with backend engineers, and ensuring system reliability and maintainability. Requires senior-level React and TypeScript expertise, experience with real-time UI patterns, and a strong UX sensibility.

Software Engineer to participate in the full development cycle of SAP FI/CO and SD/MM modules. Requires ABAP programming knowledge and interest in operational finance and controlling systems.

Java Full-Stack Developer needed for a hybrid project in Lisbon. Requires at least 3 years of Java experience, including Spring, Angular, TypeScript, and AWS. Advanced English skills are necessary.

Develop and maintain scalable backend microservices using Java Spring Boot or similar frameworks in Azure Cloud. Design and optimize RESTful APIs, implement CI/CD pipelines, and manage SQL and NoSQL databases. Build modern web applications using ReactJS, TypeScript, and state management libraries. Collaborate with cross-functional teams to design and implement software architecture.

Provide technical support to customers experiencing issues with electric vehicle charging stations. Troubleshoot charging station functionality, connectivity, and usage. Escalate complex issues and contribute to knowledge management. Must be proficient in Dutch and English.

Experienced iOS Developer to create intuitive and high-performance mobile applications using Swift and agile methodologies.

The Solution Analyst will act as a Full Stack Engineer for the Customer Platform, driving the delivery of its web roadmap. Responsibilities include analysis, design, development, testing, and deployment of web services, features, and enhancements. The ideal candidate has experience developing production-grade web solutions in React, C#, .NET Framework, Azure SQL, Azure Databricks, REST APIs, and other Azure services.

This is a hands-on Senior Growth Manager role focused on building and scaling a data-driven growth engine for an EdTech company. Responsibilities include designing, implementing, and scaling A/B and multivariate tests, identifying growth levers, and managing a team of growth specialists. The ideal candidate has a minimum of 3 years of experience in Conversion Rate Optimization, Growth Experimentation, or Performance Marketing and is fluent in French and English.