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Open nowFirst seen 2 hours ago

Senior Java Developer - Digital Payments

PayTech Nexus Ltd145 open roles

Where
Johannesburg, South Africa
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Your applicationOpen nowSenior Java Developer - Digital PaymentsPayTech Nexus Ltd · Johannesburg, South Africa

  1. YouYes, apply to this one.

  2. CV RocketCV written for this posting.

  3. 25 readersRecruiter, hiring manager, skeptic. Round after round.

  4. CV RocketApplied on PayTech Nexus Ltd's own form.

The reply lands in your private mailbox

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The clock on this job

Early applications get read.

12.7% of postings close within 7 days. Measured by our own scanner across the market. PayTech Nexus Ltd postings stay open a median of 2 days.

Share of postings closed within
  1. 2.2%1 day
  2. 4.5%3 days
  3. 12.7%7 days
  4. 20.4%14 days
  5. 35.6%30 days
  6. 58.7%60 days
This job: first seen 2 hours ago

PayTech Nexus Ltd median: 2 days open

The posting

Job Title: Senior Java Developer - Digital Payments

Employment type: Contract (On-site)

Contract length: 6 - 12 months

Location: Johannesburg, South Africa

PURPOSE OF THE PROJECT

We are seeking a hands-on Senior Java Developer to join the Merchant Services Technology Squad. The role will design, develop, integrate, and support enterprise-grade services within high-volume, mission-critical payment environments. The successful candidate will combine strong Java and Spring Boot engineering skills with practical experience in microservices, event-driven integration, container platforms, and Agile delivery.

Core Responsibilities and Accountabilities:

  • Deliver enterprise services across the full software development lifecycle, including requirements analysis, specification, development, testing, deployment, operational support, and continuous improvement.
  • Design, build and enhance Java-based applications and Spring Boot microservices using sound engineering and object-oriented design practices.
  • Develop and integrate synchronous and asynchronous services using APIs, service discovery, Kafka, and message queues.
  • Contribute to solution design and translate business and technical requirements into scalable implementation approaches.
  • Build cloud-ready, containerised services and support deployment across Docker, Kubernetes, and OpenShift environments.
  • Apply event-driven architecture principles to high-volume transaction-processing solutions.
  • Contribute to DevOps practices, CI/CD pipelines, automated testing, release readiness, and production support.
  • Participate in capacity planning, technical debt management, JAD sessions, and technical design discussions.
  • Collaborate with product, architecture, engineering, operations, risk, and other stakeholders to deliver secure and reliable solutions.
  • Produce clear technical documentation, specifications and implementation notes while maintaining agreed coding and quality standards.

Knowledge and Experience:

  • 5+ years of hands-on Java enterprise application development experience.
  • Practical experience with Java 8 and exposure to Java 21.
  • Strong Spring Boot knowledge beyond annotations, including JPA, dependency injection and component scanning.
  • 4+ years of experience developing or supporting enterprise services.
  • Strong microservices architecture experience, including inter-service communication, APIs, and queues.
  • Working knowledge of service discovery, Kafka, and queue design.
  • Hands-on experience with event-driven architecture and service integration.
  • 3+ years of experience with containerisation technologies; experience across Docker, Kubernetes and OpenShift is preferred.
  • Practical exposure to cloud technologies.
  • Hands-on SDLC experience across requirements, development, operations, and support.
  • 3+ years of exposure to solution design.
  • Experience with DevOps, CI/CD, automated testing, and production support.
  • Experience working in high-volume, mission-critical transaction environments.

Agile & Delivery Experience:

  • Operate as a hands-on senior developer within an Agile delivery squad.
  • Contribute to sprint and capacity planning and help manage technical debt.
  • Facilitate or actively participate in JAD sessions and technical discussions.
  • Work effectively across architecture, development, testing, DevOps, and operational stakeholders.
  • Ownership of production systems is not a core requirement; however, production-support experience is highly relevant.

Mandatory Skills:

  • Bachelor's degree in Computer Science, Information Technology, or a related field (Master's preferred).
  • Previous experience within a bank, payment processor, acquirer, card platform, or payment gateway.
  • Regional experience, including working in a faced-paced matrix organisation.
  • Excellent communication skills in English (written, verbal, and presentation).

Preferred Skills:

  • Relevant Java, Spring, cloud, Kubernetes, or OpenShift certifications are advantageous.
  • Banking experience is preferred, particularly exposure to acquiring or payment-transaction processing.
  • Merchant Services or Acquiring experience is beneficial but is not a prerequisite.
  • Highly relevant domain exposure includes POS acquiring, payment gateways, card processing, fraud, and risk.
  • Experience in merchant onboarding, settlement and reconciliation, or digital commerce is useful but not essential.
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