Senior Data Platform Engineer (Kafka/Docker/Kubernetes) - Hybrid Lisbon (2 days/week office)

ABOUT THE OPPORTUNITY Join the team behind one of the technologies at the heart of 5G , now pioneering a revolutionary IoT sticker — a self-powered computing element that harvests radio frequency energy to bring connectivity and intelligence to everyday products and packaging. This combination of cloud and semiconductor technology is already deployed by some of the world's largest consumer, retail, food, and pharmaceutical companies, and is backed by investors including SoftBank, Amazon, Alibaba, Verizon, NTT DoCoMo, Qualcomm, and PepsiCo . This is a rare opportunity to work on genuinely disruptive technology at massive scale, with real-world impact on how products are made, distributed, sold, used, and recycled. Engagement type: Direct Hiring | Level: Senior | Language: English B2 minimum | Location: Lisbon (hybrid, 2 days/week in office) PROJECT & CONTEXT You'll be designing and implementing scalable management systems for data-intensive pipelines operating at large scale, with high availability, security, robustness, performance, multi-cloud, and multi-tenancy requirements. The role spans the full development lifecycle — from requirement analysis and architecture through coding, CI/CD, TDD, integrations, deployment, and production monitoring — working closely with product management, fellow engineers, architects, and team leads to shape the future of IoT. WHAT WE'RE LOOKING FOR 2+ years of software development industry experience in production environments Experience with Apache Flink and/or Apache Spark for large-scale data processing Experience with Kafka or equivalent event streaming/messaging platforms Proven experience building and operating microservices in cloud environments Solid experience working with both relational and NoSQL databases Ability to provide high-standard architecture, design, and implementation across complex, data-intensive systems Strong TDD discipline and excellence across the full software development lifecycle Excellent teamwork and communication skills, with the ability to collaborate effectively with cross-functional stakeholders High self-learning ability and strong interpersonal skills Proficiency with agentic development tools and workflows BSc in Computer Science or equivalent practical experience English B2 or above Based in Portugal , available for hybrid work in Lisbon, between1 and 2 days per week NICE TO HAVE Experience with Apache Iceberg and lakehouse architecture Background in IoT Strong hands-on experience with Java and Spring Boot , telecommunications, or semiconductor technology environments Exposure to multi-tenant SaaS platforms at scale Experience operating systems with multi-cloud deployment strategies