Senior Java Backend Engineer – Payments, High-Volume Scale

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

Job summary

Acuity Consultants in Cape Town is seeking an Intermediate Java Software Developer to join a fast-growing payments FinTech, building high-performance backend systems that process millions of transactions daily.

You will design and implement robust 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.

Qualifications

• 3+ years' experience in software development.
• Degree in Computer Science, Software Engineering or similar.
• Strong commercial Java experience building high-performance backend systems.

Responsibilities

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

Skills

Java backend development

High-performance systems

Distributed systems design

Analytical skills

Education

Bachelor's degree in Computer Science or Software Engineering

Tools

Kafka

RabbitMQ

PostgreSQL

MySQL

Redis

AWS

Docker

Kubernetes

Maven/Gradle

Git

Job description

Acuity Consultants in Cape Town is seeking an Intermediate Java Software Developer to join a fast-growing payments FinTech, building high-performance backend systems that process millions of transactions daily.

You will design and implement robust 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.