.Jumia in Porto At Jumia Porto Tech Center, we boast over 16 different nationalities with around 350 employees from various business areas, primarily IT. We are a major tech company that shares an innovative spirit and embraces Agile methodologies. Our mission is to leverage technology to improve everyday life in Africa by delivering convenient and affordable online services to consumers. We are looking for great people to join our amazing teams. At Jumia, we work hard, but we do Tech With Purpose! Are you eager to work in a great team and share knowledge? Do you enjoy problem analysis and solving? If you have a solution-oriented and proactive attitude, Jumia Porto Tech Center is for you! We are currently seeking Principal Engineers to reinforce our technical teams, with open positions in Payment, Search, Shop, Vendor Management, and Jumia Food. What you will be doing Be part of the Jumia Engineering team and shape the long-term technology vision and strategy aligning with the company's objectives. Be a role model for the Jumia Values. Work effectively cross-functionally and with leadership, leveraging data and metrics to identify new opportunities for projects and features. Define architectural standards and guidelines across the company in collaboration with the Technical Advisory Group, Directors of Engineering, and Platform teams. Arbitrate on technical decisions within your scope. Define Operational Excellence KPIs and standards, partnering with Directors of Engineering to ensure highly performant solutions are developed and continuously improved. Drive performance and efficiency improvements across Jumia's platform, leading initiatives in load testing, performance tuning, and capacity planning. Ensure comprehensive documentation of system architecture, design decisions, and operational procedures. Mentor and develop Principal and Staff Engineers, fostering a culture of technical excellence and continuous learning. Ensure system reliability and compliance. Change the Internet landscape in Africa and the World through your team. What we are looking for 12+ years of experience as an individual contributor working with agile methodologies and architecting large-scale tier 1 systems. Expertise in designing and implementing complex system architectures, focusing on scalability, reliability, and maintainability. Strong working experience with Java and web frameworks (preferably Spring), with exposure to multiple programming languages. Experience with event-driven architectures and tools for queueing and streaming (preferably Apache Kafka). Experience working with large-scale Databases (SQL and NoSQL), with a good understanding of data modelling and optimization. Experience with containerization (preferably Docker) and orchestration (Kubernetes). Strong black box test Automation experience is a plus. Experience designing and developing platforms built for scale is a plus
