backend developer English-speaking jobs in Mafra

Occupational Health and Safety Technician ensures compliance with Portuguese legislation and project HSE standards during a wind farm construction project.

Provide Polish-speaking customer support via chat, email, and phone. Solve inquiries with professionalism and accuracy. Work in a multicultural team to enhance the customer experience.

DevOps Engineer to join a remote-first team managing a cloud-native stack on Microsoft Azure. Requires 4-5 years of experience with Azure, Kubernetes, Terraform, and Azure DevOps. Must be fluent in English and based in Portugal or Spain.

The Sales Manager creates memorable guest experiences and collaborates with team members. The role reports to the Director of Sales & Marketing and is responsible for prospecting, qualifying new business, producing sales contracts, and supporting the Director.

Lead Product Manager to own Openprovider's core web presence platform and user experience. Responsibilities include owning platform infrastructure, payments, APIs, provisioning, and user interfaces. The ideal candidate has 5+ years of experience managing complex SaaS solutions, a strong AI-first mindset, and technical fluency.

Key Account Manager to support strategic customers in the Traditional / Convenience channel. Develop commercial expertise, contribute to top-line growth, and analyze sales performance.

Clinical Trial Support Specialist to provide procedural case support, manage device logistics, and collect study data across international sites.

The Key Account Manager – On Trade develops and implements Joint Business Plans with strategic On Trade customers in Portugal. The role manages customer relationships, leads negotiations, and ensures alignment between commercial and brand strategies. The Key Account Manager is responsible for customer performance and P&L management, driving growth across distribution, pricing, portfolio expansion, and activation.

Provide customer support via phone and email for a leading e-commerce platform. Assist customers with orders, deliveries, payments, returns, and troubleshooting. Fluent Dutch and English required.

Johnson & Johnson seeks a Technical Product Owner (TPO) for their Pharm TranSCend program. The TPO will gather and document functional requirements for Master Data Governance (MDG), translate them into technical user stories, and support solution design. The role requires 5+ years of experience with workflow-based MDG platforms (SAP MDG or similar) and strong knowledge of master data governance processes and principles.

Cook needed for Etma Café in Lisbon. Prepare and serve menu items, greet guests, and maintain a clean workspace. Experience in cafés and a team-oriented attitude are required.

Develop, drive, and own the global cross-functional reporting & BI landscape at Beyond Gravity. Lead and contribute to the roll-out of Power BI as the company's new reporting tool. Actively collect, transform, and validate financial and non-financial data to drive insights and decision-making. Develop and implement a roadmap for global reporting & BI initiatives. Collaborate with managers from all areas of the company to ensure alignment of technical and business goals.

Hiring for multiple customer service, content moderation, and technical support roles across Europe. Fluency in German, Dutch, Greek, Polish, Czech, or English (B2+) required.

Finance Manager to build and lead the finance function for Azakaw Portugal, a RegTech SaaS platform. Responsibilities include accounting, statutory compliance, grant funding, and platform billing data reconciliation. Requires professional accounting qualification, 10-12 years experience, and deep knowledge of Portuguese tax and statutory requirements.

Influencer Marketing & Social Media Specialist will scale brand presence through strategic partnerships. Responsibilities include leading agency relationships, overseeing campaign execution, and managing influencer budgets. Requires 3+ years of experience in social media and influencer marketing, agency management expertise, and bilingual proficiency in English.

Research Fellowship (BI) at Laboratório Associado para a Química Verde - Tecnologias e Processos Limpos. Focus on production, characterization, and in vitro biological validation of biomimetic non-lamellar lyotropic liquid crystalline nanocarriers. Requires a Master's degree in a relevant field and proven competences in specified techniques.

Lead and grow an Options Engineering team of around 7 engineers. Own and evolve an existing Rust-native systematic options trading platform. Provide strong technical direction across trading infrastructure, system design, performance, reliability, and risk controls.

German Quality Specialist/Content Creator needed for a project focused on data analysis, content creation, and call monitoring. Responsibilities include assessing audits, creating training materials, monitoring CSR performance, and reporting on program changes. Requires native or proficient German, advanced English, strong data analysis skills, and experience in call center quality assurance. Must have at least 12 months of call center experience, preferably as a Product Specialist/Mentor.

Frontend Platform Developer will collaborate with designers to implement user interfaces, build reusable frontend components, and refactor legacy frontends. Requires 5+ years of experience in web frontend development, knowledge of Angular, TypeScript, and CI/CD tools.

Lead and develop a Customer Support team, ensuring KPI delivery through coaching, queue oversight, and cross-functional collaboration. Own real-time operations, drive team performance against KPIs, and support hiring, onboarding, and training.