Solutions Architect (Expert) - Java / Full-Stack / Microservices

SA Citizens and Work Permit holders based in SA Only

Location: Menlyn, Pretoria
Working Model: Hybrid – 2 days per week in the office
Contract: 3 years, renewable
Start Date: 1 January 2027

About the Opportunity

OpenSource Intelligent Solutions is recruiting an experienced Solutions Architect (Expert) for an exciting long-term opportunity within a sophisticated global enterprise IT environment.

We are looking for a highly skilled technical professional with extensive Java, Spring Boot, Angular, TypeScript, Microservices and Full-Stack Development experience.

The successful candidate will lead the architecture, design and development of enterprise-grade applications, delivering secure, scalable, resilient and high-performance software solutions.

This opportunity involves modern Zero Trust security initiatives, enterprise integration, cloud-native technologies and collaboration with international technical teams.

Solution Architecture & Development

• Lead the architecture, design, development and delivery of enterprise full-stack applications.

• Develop scalable, secure and maintainable software solutions.

• Architect and maintain backend services exposing APIs to internal and external consumers.

• Design and build responsive frontend applications using modern frameworks.

Integration & Microservices

• Design and implement microservices and event-driven architectures.

• Integrate applications with internal services and third-party APIs.

• Define API contracts, versioning strategies and consumer-producer agreements.

• Implement reliable integration patterns, including retries, error handling and idempotency.

• Enable real-time and asynchronous workflows using messaging technologies.

Database Architecture

• Design and implement relational database solutions.

• Develop maintainable database structures and relationships.

• Ensure database scalability and performance.

DevOps & Security

• Design, build and maintain CI/CD pipelines.

• Implement automated deployments and reliable release processes.

• Establish effective rollback strategies.

• Champion secure coding and security-by-design principles.

• Support application observability, monitoring and production stability.

Technical Leadership

• Provide technical direction and architectural guidance.

• Collaborate with stakeholders and multidisciplinary Agile teams.

• Resolve complex technical challenges and perform root-cause analysis.

• Drive software engineering best practices and continuous improvement.

• Contribute to enterprise technology modernisation and security transformation initiatives.

Essential Technical Skills

Candidates must demonstrate strong hands-on experience in the following:

Backend Development

• Java development and Java-based frameworks

• Spring Boot application development

• RESTful API design, development and integration

• Microservices architecture and development

• Backend service design and implementation

• API integration patterns and service communication

Frontend Development

• Angular

• TypeScript

• Modern JavaScript

• Responsive and maintainable frontend application development

• Full-stack application integration

Database Technologies

• SQL and relational databases

• Database architecture and schema design

• Database relationships and data modelling

• Database performance, scalability and maintainability

Architecture & Integration

• Microservices-based architecture

• Event-driven architecture

• Asynchronous workflows and event-based integration

• API contracts and versioning strategies

• Enterprise application integration

• Secure and scalable system design

DevOps & Software Delivery

• Git source control

• CI/CD pipelines

• Automated build and deployment processes

• Release management and deployment automation

• Secure coding practices

• Application monitoring and troubleshooting

• Agile software development methodologies

Advantageous Technical Skills

Experience with any of the following will be advantageous:

• Python

• Zero Trust security principles and integrations

• ServiceNow development, including Service Catalog and workflow development

• Node.js

• MongoDB and NoSQL databases

• AWS and cloud-native application development

• Apache Kafka and RabbitMQ

• SAP integration patterns and enterprise SAP environments

• Docker containerization

• Kubernetes orchestration

Minimum Qualifications & Experience

• Relevant IT degree or equivalent professional experience.

• Minimum 6+ years' hands-on experience developing enterprise full-stack applications.

• Extensive experience with Java, Spring Boot, Angular and TypeScript.

• Proven experience designing and developing RESTful APIs and Microservices.

• Strong knowledge of relational databases and SQL.

• Demonstrated experience in CI/CD, secure coding and software delivery.

• Experience working within Agile development teams.

• Proven ability to contribute to end-to-end enterprise application delivery.

• Strong technical problem-solving, communication and stakeholder engagement skills.

• Ability to provide technical guidance and resolve complex architectural challenges.

Based on current salary and benefits

Why Consider This Opportunity?

• Exposure to cutting-edge global enterprise technology.

• Participation in strategic Zero Trust security transformation initiatives.

• Opportunities to work with modern full-stack and cloud-native technologies.

• Collaboration with international technology teams.

• Challenging enterprise architecture and integration projects.

• Hybrid working arrangements.

• A long-term, renewable contract opportunity.

Apply Now

If you have a strong background in Java Full-Stack Development, Solution Architecture, Spring Boot, Angular, Microservices and Enterprise Integration, we would like to hear from you.

Email your CV to: [email protected]

Subject: Solutions Architect (Expert)