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Senior Full Stack Developer React Js Node Js jobs in Lisbon· Page 19

Results 361–377 of 377 for “Senior Full Stack Developer React Js Node Js” in Lisbon.

377 jobs found

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Emma – The Sleep Company logo
Full-time|On-site|Lisbon

Are you ready to revolutionize the sleep industry? Join us at Emma – The Sleep Company, where we have become the leading D2C sleep brand since our inception in 2015. With our presence in over 35 countries and more than 25 stores across Europe, we are proud to be recommended by top consumer associations in EMEA, APAC, and the Americas. We create innovative sl…

Mar 23, 2026
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NielsenIQ logo
Full-time|On-site|Lisbon

Join NielsenIQ as a Senior Global Retention Analyst and play a pivotal role in enhancing customer loyalty across our global markets. This position is ideal for analytical minds who thrive in a dynamic environment and are eager to drive meaningful insights that influence retention strategies.The successful candidate will leverage data analytics and marketing expertise to develop strategies that enhance customer engagement and retention. You will collaborate with cross-functional teams to implement solutions that significantly impact our customer base.

Mar 23, 2026
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Sixt SE logo
Full-time|On-site|Lisbon

Join Sixt as a Senior Customer Insights Analyst and play a pivotal role in shaping the future of our customer experience. In this dynamic position, you will leverage your analytical expertise to extract insights from customer data, helping us enhance our services and meet our clients' needs effectively.As a key member of the TECH & Engineering department, you will collaborate with various teams to drive strategic decisions based on data-driven insights. Your ability to interpret complex datasets will be crucial in identifying trends and opportunities for improvement.

Feb 11, 2026
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Natixis in Portugal logo
Full-time|On-site|Lisbon

Role Overview Natixis in Portugal is looking for a Senior Anti-Fraud Controls Officer to help protect our Lisbon operations from fraud. This role focuses on developing and enforcing anti-fraud strategies, carrying out thorough risk assessments, and supporting compliance with regulatory standards. What You Will Do Design and implement anti-fraud strategies tailored to our business needs Conduct risk assessments to identify vulnerabilities and recommend improvements Monitor compliance with internal policies and external regulations Work closely with teams across the company to strengthen fraud prevention measures Review and enhance existing controls to address emerging risks Who We’re Looking For Strong background in risk management, with attention to detail Proactive approach to identifying and addressing potential threats Ability to collaborate with colleagues from different departments Experience in anti-fraud or compliance roles is a plus

Apr 17, 2026
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Fever logo
Full-time|On-site|Lisbon

About Fever Fever is a technology platform focused on culture and live entertainment. Our mission is to make cultural and entertainment experiences accessible to everyone. We use technology and data-driven strategies to change how people discover and enjoy live events. Every month, over 300 million people in more than 55 countries use our platform to find unique experiences. We help event organizers grow and innovate with our data and tools. Fever works with partners like Netflix, F.C. Barcelona, and Primavera Sound, and is backed by top global investors. Role Overview: Senior Technical SEO Strategist (Based in Madrid) This position is based in Madrid, but the listed location is Lisbon. The Senior Technical SEO Strategist will play a key role in shaping the organic search strategy for Fever’s transactional platforms, including feverup.com, white label sites, and other group websites. The role reports directly to the SEO Manager. Main Responsibilities Act as the technical SEO expert for all Fever transactional platforms. Analyze, define, and optimize information architecture. Apply technical skills in areas such as crawling, indexing, structured data, Core Web Vitals, HTML, CSS, CDN performance, and APIs automation. Ensure search engine bots and large language models can efficiently access and process site content. Monitor industry trends and recommend timely SEO and GEO adaptations for all sites. Take ownership of monitoring, setting success KPIs, and developing tracking methods, including log analysis and building dashboards or alerting systems (using tools like ELK, BigQuery, Splunk, or similar). Work closely with Data, Product, and Systems teams to deliver on the technical SEO roadmap. Design, implement, and optimize experiments to drive improvements in organic search performance. Collaboration and Impact This role works alongside Product, Engineering, Data, and Marketing teams. The aim is to use advanced tools and insights to achieve measurable results across major search engines and digital platforms.

Apr 17, 2026
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TransPerfect logo
Full-time|On-site|Lisbon, Lisboa, Portugal

TransPerfect is seeking a Senior AI Research Scientist to join its Lisbon office. This position focuses on advancing artificial intelligence and large language models (LLMs), contributing to the development of future TransPerfect products. Research here moves quickly from concept to real business applications, allowing direct impact on workflows and client solutions. About the AI Research Team The AI Research group at TransPerfect, previously known as Unbabel AI Research, has been central to the company’s progress for more than a decade. The team’s work includes award-winning achievements in machine translation, quality estimation, and language modeling. Their notable projects, such as the COMET and TowerLLM models, drive the GlobalLink platform and have streamlined processes for both clients and internal teams. What you will do Lead research and development efforts in AI and LLM technologies Work closely with a team known for its expertise in NLP and machine learning Translate research outcomes into practical business products and services Impact and Recognition Research from this team has been published at top conferences and shapes products used around the world. AI research at TransPerfect plays a direct role in how language technology supports businesses on a global scale.

Apr 23, 2026
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TransPerfect logo
Full-time|On-site|Lisbon, Lisboa, Portugal

TransPerfect is seeking a Senior AI Research Scientist to join its Lisbon office. This role centers on advancing AI and large language model (LLM) research, with a direct link between innovative research and real-world business applications. The work supports the evolution of TransPerfect’s products and services. The Team The TransPerfect AI Research group, formerly known as Unbabel AI Research, has played a key role in the company’s growth for more than a decade. The team’s achievements include award-winning contributions in machine translation, quality estimation, and language modeling. Projects such as COMET and the TowerLLM series have enhanced workflows and strengthened the GlobalLink platform for both clients and internal teams. What You Will Do Lead research and development efforts focused on AI and large language models Collaborate with a team recognized for work presented at major NLP and machine learning conferences Transform research findings into solutions that power TransPerfect’s offerings Contribute to the development of next-generation machine translation and language technologies Location This position is based in Lisbon, Lisboa, Portugal.

Apr 23, 2026
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inetum2 logo
Full-time|On-site|Lisbon

Join our dynamic team at inetum2 as a Senior DevOps Engineer specializing in Kubernetes. In this role, you will leverage your expertise in DevOps practices to enhance our software development and deployment processes, ensuring high availability and scalability of our applications. Collaborate with cross-functional teams to design and implement robust CI/CD pipelines, automate infrastructure provisioning, and maintain system reliability.

Apr 30, 2026
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Sixt logo
Full-time|On-site|Lisbon

Join our dynamic team at Sixt as a Senior Data Governance Engineer, where you will play a pivotal role in shaping our data governance strategy. You will be responsible for establishing data management policies, ensuring compliance, and enhancing data quality across various business units. This is an exciting opportunity to contribute to our innovative projects while collaborating with cross-functional teams.

Apr 30, 2026
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Kaizen Gaming logo
On-site|On-site|Lisbon, Portugal

Welcome to Kaizen Gaming!As a leading force behind Betano, Kaizen Gaming stands as one of the world's largest GameTech companies, proudly serving 19 diverse markets. Our mission revolves around harnessing state-of-the-art technology to deliver unparalleled experiences to millions of customers who choose us for their gaming entertainment.We are a vibrant community of over 2,700 passionate Kaizeners from more than 40 nationalities, spread across three continents. Recognized as one of the Best Workplaces in Europe and certified as a Great Place to Work, we assure you that no two days will be alike in our dynamic environment. Are you ready to Press Play on your potential?About the RoleAt Kaizen, we are dedicated to utilizing the power of modern AI algorithms to enhance our products and business strategies continuously. Our AI department, comprising product, platform, and research teams, is central to this goal. From detecting fraudulent activities to providing personalized gaming recommendations and optimizing CRM systems, we develop innovative AI solutions.Our teams are built on the principles of self-drive, autonomy, and cross-functionality. In this collaborative environment, you'll engage with Data Scientists, Machine Learning Engineers, Data Engineers, Data Analysts, Product Owners, and Agile Delivery Leads.As a Machine Learning Engineer, your primary focus will be on architecting and delivering robust, scalable Machine Learning pipelines while ensuring the seamless operationalization of Machine Learning models.Your Responsibilities:Design, develop, and maintain scalable model training and inference pipelines in a distributed production environment.Create, deploy, and manage microservices in Python that host and serve ML models in production.Develop and maintain internal tools that facilitate CI/CD/CT, efficient feature engineering, experiment tracking, and data/model versioning.

Feb 4, 2026
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Upwork Inc. logo
On-site|On-site|Lisbon, Portugal

Join Upwork Inc. as a Senior Lead Machine Learning Engineer, where you'll be at the forefront of developing cutting-edge agentic intelligence. In this pivotal role, you will architect, implement, and scale innovative AI agents and the underlying platform that supports them. Your responsibilities will encompass the entire development lifecycle—from training and evaluating large language models (LLMs) to orchestrating runtime environments, ensuring safety, and creating developer APIs. This is a unique opportunity to blend applied research with platform engineering, empowering both internal teams and external developers to create reliable, high-performing agents within the Upwork ecosystem.

Feb 9, 2026
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Datadog logo
Full-time|Hybrid|Lisbon, Portugal

At Datadog, our mission is to integrate security and observability for modern organizations. Our Bits AI for Security is an innovative AI agent that utilizes large language models (LLMs) to assist analysts in investigating alerts, comprehending threats, and enhancing response times. We are in search of a product-focused AI Engineer to help us develop the next generation of AI-powered security solutions. We cherish our workplace culture at Datadog, which fosters relationships, collaboration, and creativity. Our hybrid work model allows Datadogs to strike a balance between their professional and personal lives.

Feb 27, 2026
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Veeva Systems, Inc. logo
Full-time|Hybrid|Portugal - Lisbon

At Veeva Systems, we are dedicated to revolutionizing the life sciences sector by accelerating the delivery of therapies to patients. As a trailblazer in industry cloud solutions, we have achieved remarkable milestones, surpassing $3 billion in revenue last year and showcasing significant growth potential. Our core values—Doing the Right Thing, Customer Success, Employee Success, and Speed—drive our mission. In 2021, we proudly became a public benefit corporation, committed to balancing the needs of our customers, employees, society, and investors. As a Work Anywhere organization, we empower you to choose a flexible work environment that best suits your needs, whether from home or in the office. Join us in transforming the life sciences industry, where we are committed to making a meaningful impact on our customers, employees, and communities.The Role As part of the Veeva Data Cloud team, you will work with a cross-functional group of data scientists, engineers, and product managers to enhance our AI solutions. Our AI team powers a suite of products designed to accelerate insights and improve operational efficiency through a robust data architecture.Your role will involve scaling our innovative AI tools, which are complemented by a dedicated team of over 3,000 data stewards. By merging AI with human expertise, we transform data into actionable insights, facilitating faster clinical innovations and broader access to necessary treatments for patients.Veeva embraces a flexible work policy, allowing you to work from home or in our offices, prioritizing productivity in your preferred environment.

Mar 24, 2026
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autodoc3 logo
Full-time|On-site|Lisbon

Role overview autodoc3 is looking for a Senior Technical CRM Manager in Lisbon to strengthen our customer relationship management strategies. This role focuses on optimizing CRM systems so they support our business goals and improve how we engage with customers. What you will do Analyze CRM performance metrics to understand trends and identify opportunities for improvement Lead initiatives that advance our CRM capabilities and customer engagement Collaborate with cross-functional teams to implement data-driven solutions Ensure CRM systems align with business objectives What we look for Strong technical background in CRM systems Experience working with data-driven strategies Ability to work across teams and communicate clearly Strategic mindset focused on continuous improvement

Apr 28, 2026
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fusionconsulting logo
Full-time|On-site|Lisbon

We are seeking a talented and experienced Senior SAP MDM Consultant with a strong background in SAP QM/MM to join our dynamic team at fusionconsulting. In this role, you will work closely with clients to implement, support, and optimize SAP Master Data Management (MDM) solutions. Your expertise will contribute to enhancing our clients' operational efficiency and data quality.If you are passionate about leveraging SAP technology to drive business success and have a collaborative spirit, we would love to hear from you!

Feb 27, 2026
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Natixis in Portugal logo
Full-time|On-site|Lisbon

Key Responsibilities:Serve as the primary contact for marketing project managers based in Paris, ensuring seamless communication and collaboration.Coordinate operational activities in partnership with the Team Leader to enhance workflow efficiency.Lead, mentor, and develop the CRM campaign assistants, fostering a culture of growth and skill enhancement.Oversee the execution and quality assurance of marketing campaigns, ensuring they align with strategic objectives.Track key performance indicators (KPIs) and prepare detailed performance reports to assess campaign effectiveness.

Feb 19, 2026
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Upwork Inc. logo
Lead AI Engineer

Upwork Inc.

On-site|On-site|Lisbon, Portugal

Join Upwork Inc. (Nasdaq: UPWK), a leader in connecting businesses with top-tier global talent empowered by artificial intelligence. As a Senior Lead AI Engineer, you will play a pivotal role in driving innovation and enhancing AI solutions across various work types, including freelance, fractional, and payrolled talent. Our diverse portfolio includes the Upwork Marketplace, which offers businesses immediate access to a vast pool of skilled professionals worldwide, and Lifted, our dedicated platform for enterprise organizations to efficiently source, manage, and compensate talent for all contingent work needs. From Fortune 100 companies to entrepreneurial startups, businesses depend on Upwork Inc. to discover expert talent, utilize AI-driven solutions, and transform their operations. With expertise spanning over 10,000 skills across AI & machine learning, software development, sales & marketing, customer support, finance & accounting, and beyond, we empower businesses of all sizes to scale, innovate, and adapt in the age of AI and beyond.Since our inception, we have successfully facilitated over $30 billion in transactions and services, embodying our mission to create opportunities in every era of work. Explore more about the Upwork Marketplace at Upwork.com and connect with us on LinkedIn, Facebook, Instagram, and TikTok.

Feb 9, 2026

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