Java Developer & Tech Lead

Recruiter:

ARCS

Job Ref:

PTA001201/TM

Date posted:

Monday, November 17, 2025

Location:

Centurion, South Africa

SUMMARY:

Tech Lead – JavaScript Developer (Contract)

Location: Centurion
Employment Type: Contractor
Duration: 12 months
Work Model: Hybrid (3 days in office, 2 days from home)
Reporting to: Head: Application Development

Introduction

An established technology team in Centurion is seeking an experienced Tech Lead – JavaScript Developer to drive the design, development, and implementation of enterprise-level applications. The ideal candidate will bring strong technical leadership, full-stack expertise, and a deep understanding of modern integration patterns to support the delivery of scalable, service-based solutions.

POSITION INFO:

Key Responsibilities

Produce technical systems designs and architectural documentation.
Provide system support and drive continuous enhancements.
Ensure non-functional requirements align with the technical architecture.
Design IT solutions that meet business objectives.
Communicate and enforce architectural standards and decisions.
Define and document best practices, guidelines, and standards.
Communicate technical possibilities and constraints to business stakeholders and team members.
Develop, maintain, and communicate an application/technology roadmap.
Identify and escalate risks appropriately.
Promote effective teamwork across technical and delivery teams.
Coach and mentor developers to support their growth.

Experience & Qualifications

BSc / MSc / BCom in Computer Science or related field (or equivalent industry experience).
Minimum 8 years' JavaScript & Java experience within investment, financial services, or similarly complex environments.
Relevant Java / JavaScript certifications.

Technical Proficiency Required

Cloud: AWS
Containers: Docker
Microservices architecture
Spring & Spring Boot
Web technologies: HTML, CSS, JavaScript, HTTP/HTTPS
Full-stack development (front-end & back-end)
AngularJS and Angular.io
Node.js, Express, Swagger/OpenAPI
MEAN stack (MongoDB, Express, Angular, Node.js)
NoSQL databases: MongoDB, CouchDB, DynamoDB
Relational databases: PostgreSQL, DB2, Oracle
Linux distros: Ubuntu, Debian, Fedora
JMS and messaging technologies
XML and related tools
Web services
Gradle
Git
Unit testing (JUnit, Mockito)
Security principles
Test automation
DevOps experience
Ability to read UML and contribute to design sessions
Strong understanding of development design patterns
Object-oriented analysis, design, and development
Experience with agile development methodologies
Structured coding practices for maintainability
Integration of components into fully functional systems
Ensuring unit and integration test coverage and quality
Troubleshooting, debugging, updating applications
Continuous improvement and incorporating user feedback
Using trends and metrics to design and optimise solutions
Staying up to date with industry standards and best practices
Developing innovative solutions to meet unique business needs

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