Software Engineer

Acuity Consultants; Wes-Kaap; On-site; ZAR 725,000 - 893,000; Full time

Job summary

Acuity Consultants is seeking an Intermediate Java Software Developer in Cape Town to join a fast-growing payments FinTech. You'll develop high-performance backend systems that process millions of transactions daily, building robust Java services and microservices in a cloud-native environment.

Work includes messaging with Kafka/RabbitMQ, relational/NoSQL databases, and modern CI/CD pipelines. You will operate across the stack with a collaborative team, focusing on reliability, security, and

Qualifications

• Degree in Computer Science or Software Engineering.
• 3+ years in software development.
• Strong commercial Java experience in high-performance backend systems.
• Proven analytical skills for high-stakes, regulated environments.

Responsibilities

• Design and build high-performance Java backend services and microservices.
• Work with messaging and event-driven architectures to process transactions at scale.
• Ensure resilience, security, and auditability of payments infrastructure.
• Collaborate with engineers across the stack in a cloud-native environment.

Skills

Core Java

Microservices

Messaging

Databases

AWS

Education

Bachelor's degree in CS/SE

Tools

Kafka

RabbitMQ

Redis

Maven/Gradle

Git

Job description

This is a great opportunity for an experienced Java developer to join a fast-growing payments FinTech, building high-performance backend systems processing millions of transactions daily.

This role is based in Cape Town, paying R65-80K per month.

THE COMPANY:

This next-generation payments technology company has delivered trusted, enterprise-grade, cloud-native software that optimises financial transaction processing.

They're recognised as a respected partner in high-volume, low-value payment schemes, and their platforms enable clients to deliver critical financial services to millions of people daily.

You'll join a team that's grounded in impact, builds together with clients and colleagues, and backs empowered, high-performing engineers with mentorship from industry leaders and real ownership over the full product journey.

THE ROLE:

As an Intermediate Java Software Developer, you'll play a critical role in shaping high-performance backend systems that sit at the core of a high-volume, high-stakes payments environment.

You'll design and build robust, scalable Java services and microservices, work with messaging and event-driven architectures to process transactions reliably at scale, and help ensure the resilience, security, and auditability that payments infrastructure demands.

You'll work across the stack from clean, well-tested code through to cloud-native deployment, collaborating closely with other engineers in a highly collaborative, high-trust team.

THE TECH STACK:

• Core Java (11/17/21), OOP, collections, generics, streams, concurrency and JVM performance tuning
• Microservices and distributed systems: REST APIs, resilience, idempotency, fault tolerance and scalability
• Messaging: Kafka, RabbitMQ or similar
• Databases: SQL with PostgreSQL/MySQL/Oracle, plus exposure to Redis or similar NoSQL/cache tech
• AWS, Docker, Kubernetes/EKS, CI/CD, observability and production support
• Testing: JUnit, Mockito, integration and API/contract testing
• Maven or Gradle, Git and standard CI pipelines
• Payments engineering: high-throughput, low-latency processing, retries, idempotency, reconciliation and auditability

THE REQUIREMENTS:

A degree in Computer Science, Software Engineering or similar.

3+ years' experience in software development

Strong commercial Java experience - this role needs someone who really knows what they're doing, building high-performance backend systems

Proven analytical skills and the ability to work confidently in high-stakes, complex, and highly regulated environments