Senior Java Software Engineer - Jumia (Full Time)

About Jumia:

Jumia is a leading pan-African e-commerce platform. Its mission is to improve the quality of everyday life in Africa by leveraging technology to deliver innovative, convenient and affordable online services to customers, while helping businesses grow as they use Jumia's platform to better reach and serve customers.

Jumia is built around a marketplace and supported by a proprietary logistics business [Jumia Logistics] and a digital payment and fintech platform [Jumia Pay]. With over 3,000 employees, Jumia is led by top talented leaders offering a great mix of local and international talents and is backed by very high-profile shareholders. Jumia is committed to creating a sustainable impact in Africa.

In April 2019, Jumia was the first Tech company in Africa to be listed on the New York Stock Exchange.

Jumia in Porto

At Jumia Porto Tech Center we boast over 16 different nationalities. We have around 350 employees from several business areas, from IT, to Finance, to HR. The IT team represents 75% of it, so as you can see we are a major tech company, and as a Tech company, we share an innovative spirit. At Jumia PTC you will work under the most updated technologies and work methodologies. We are great fans of Agile philosophy and we aim to keep things simple but smart. Also, for Jumia, technology relates with improvement for our world. We see technology as something we need to put purpose into. Our mission is to leverage technology to improve everyday life in Africa and we do it  by delivering convenient and affordable online services to consumers, helping them fulfill basic everyday needs. And while we’re present in Africa, we get to take African economy online, helping small and large businesses grow and reach new consumers. This is what drives our day to day decisions. :)

We are looking for great people to join our amazing teams and celebrate our achievements. 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 like problem analysis and solving? Do you have a solution-oriented and proactive attitude? Jumia Porto Tech Center is for you!

What you will be doing

• Revolutionize African e-commerce by developing cutting-edge solutions for online shopping, smart logistics, and digital payments
• Architect and implement robust services within our state-of-the-art, service-oriented ecosystem
• Take end-to-end ownership of your projects, from concept to deployment and beyond
• Craft high-quality, scalable code that will serve millions of users across Africa
• Mentor team members and contribute to a culture of excellence through thoughtful code reviews
• Be a key player in our agile team, driving innovation and best practices

What we are looking for

• 5+ years of battle-tested experience in software development
• Mastery of Object-Oriented Programming (OOP) principles
• Proficiency in Java, with Spring Boot expertise as a major plus
• A passion for writing clean, testable code backed by robust unit and integration tests
• Deep understanding of software design patterns and architectural best practices
• Strong command of SQL and relational database concepts
• Fluency in English, enabling seamless collaboration with our diverse, international team

• Experience with Go or NodeJS, showcasing your versatility across languages
• DevSecOps Mindset: A security-first approach to development, essential in today's digital landscape
• Resilience Engineering: Knowledge of fault-tolerance and secure programming concepts to build robust systems
• Modern Tech Stack Mastery:
  • Message queuing (e.g., Kafka) for building scalable, distributed systems
  • Caching solutions (e.g., Redis) to optimize performance
  • NoSQL databases for handling diverse data types
  • Service-Oriented Architecture (SOA) principles
  • CI/CD pipelines for seamless deployment
  • Application and system monitoring for proactive issue resolution
  • Tool Proficiency: Hands-on experience with technologies such as Maven, Gradle, Hibernate, Prometheus, Docker, Kubernetes, SonarQube, or Jenkins
• Agile Advocate: Experience working with Scrum processes, driving iterative development and continuous improvement

References we use daily at work:

Mr. Martin Fowler: https://martinfowler.com/ The Clean Code by Robert C. Martin (or simply Uncle Bob)

The Pragmatic Programmer by Andrew Hunt and David Thomas Release it! By Michael T. Nygard Agile Estimating and Planning by Mike Cohn http://highscalability.com/

We Offer:

• A unique experience in an entrepreneurial, yet structured environment
• A unique opportunity of having strong impact in building the African e-commerce sector
• The opportunity to become part of a highly professional and dynamic team
• An unparalleled personal and professional growth as our longer-term objective is to train the next generation of leaders