Senior Java Developer and Architect

Mezzanine delivers trusted B2B2C digital solutions for private and public enterprises across Agriculture, Healthcare, Utilities and Financial Services. Our solutions are built and delivered in our proprietary Helium technology framework and deployed at scale across Sub-Saharan Africa, primarily in Vodacom and M-Pesa footprint markets.

What makes this work meaningful is where it lands: in the hands of more than 6 million primary producers, 5,500 clinics processing patient data, municipalities recovering utility revenue, and millions of citizens accessing government services. When we say we deliver at scale, we mean it — 39 million vaccination events managed, over 100 million laboratory test results processed, and more than USD 2b farmer payments processed across the continent.

We are a subsidiary of Vodacom, but we operate on an OEM and network-agnostic model. We bring the right solution to every market and segment we enter, regardless of carrier.

You will form part of the Technology team that develops and maintains the rapid application development platform (Helium Rapid) as well as the Java based framework used for application development (Helium Flex). These platforms are used by Mezzanine’s product developers to develop the products that we take to market.

You will be contributing to the architectural design and own the technical excellence of the products. You will develop and communicate the use of ‘best practice’ during product development and contribute towards the technical development of junior product developers.

We are looking for an individual that is a great team player, problem-solver and quick learner. The ideal individual will be someone who is dependable and dedicated to their work.

The team uses the following technologies:

• →Java SE 8, 21, 25
• →JBoss Undertow
• →Java EE (Enterprise Edition) 8
• →EJB, JMS, JDBC, JNDI
• →Glassfish 4.1.1 & 5
• →Git
• →PostgreSQL 17
• →Apache Kafka
• →Docker
• →Ubuntu

• 10+ years overall experience in information technology.
• 10+ years’ experience in development.
• 5+ years’ experience in Java development.
• 10+ years’ experience working with SQL databases, ideally PostgreSQL.

• Passionate and dedicated team members - We work hard and support each other because we are passionate about what we do and the impact we are making.
• Growth opportunities - We have annual personal development discussions to craft out your journey ahead. We have 5 study leave days for those that are pursuing a qualification or certification.
• Flexibility - 3 remote work days with core hours being 10:00 - 15:00. We are output, not input focused.
• An energising environment - We celebrate differences and value individuals. We enjoy celebrating successes, having coffee-walks and playing ping-pong.
• Income protection & death cover - We care about our staff and their family when unexpected events occur.
• Employee Wellness Programme - We are holistic beings and therefore we invest in the health and wellbeing of our staff.

Starting date: ASAP

Location: Stellenbosch, South Africa

Only shortlisted candidates will be contacted. Should you not hear from us after 30 days you may consider your application unsuccessful.