Senior JavaScript Developer | Angular | Java | Full Stack | Node.js

Introduction

Seeking a Senior JavaScript Developer for a highly respected, well-established Investment and Asset Management company in Centurion

This is a hands-on Senior JavaScript Developer role — not a management position, not a purely architectural seat. You will be writing code every day. You will be solving complex integration and front-end challenges on a large-scale financial platform, and you will be working with engineers who are serious about quality, craft, and delivery.

The tech stack is modern: Angular or React on the front end, Node.js and Java Spring on the back end, Docker for containerisation, Git for version control, and an active interest in AI-assisted development tooling (GitHub Copilot, Claude Code). If you are the kind of developer who gets energy from owning a complex problem end-to-end — from API design through to UI delivery — this role is built for you.

We are specifically looking for developers who are:

• Full-stack in reality — you are as comfortable debugging a Spring service as you are optimising an Angular component
• Ownership-driven — you do not consider work done until it is tested, reviewed, documented, and deployed
• Quality-obsessed — you write tests without being asked, you raise standards without being told
• Technically curious — you are already using AI coding tools or actively exploring them
• Collaborative by nature — your peers want to pair with you, and junior developers grow when you review their code
• Domain-invested — you are interested in the financial and investment context your software runs in, not just the code

The environment is Agile, collaborative, and technically demanding. You will contribute to design decisions, influence engineering standards, and be the engineer other developers benchmark themselves against — without carrying a people-management title.

Duties & Responsibilities

Full-Stack Application Development

• Design, build, and maintain high-quality JavaScript and Java applications across front-end and back-end layers
• Deliver Angular (and/or React) front-end solutions — component architecture, state management, routing, performance optimisation
• Build Node.js (Express) back-end services — RESTful APIs, middleware, service integration, error handling
• Develop Java Spring back-end components — services, controllers, persistence layers, integration adapters
• Integrate components into fully functioning systems aligned to enterprise architecture standards
• Ensure all solutions meet functional requirements and non-functional expectations: performance, security, resilience, and scalability

Architecture, Design & Engineering Standards

• Apply appropriate architectural and design patterns to deliver scalable, maintainable, and modular solutions
• Contribute to solution design discussions — bringing informed technical perspectives on trade-offs and options
• Produce and maintain technical design artefacts and solution documentation
• Interpret and apply UML models, API contracts, and integration design specifications
• Uphold and reinforce development guidelines, best practices, and coding standards across the team
• Support alignment to agreed architectural principles, particularly around service decoupling and modular integration

Engineering Quality & Testing

• Write comprehensive unit and integration tests — Jest, JUnit, Mockito — as a non-negotiable part of delivery
• Maintain high coding standards with emphasis on readability, maintainability, and testability
• Troubleshoot, diagnose, and resolve complex application defects and system failures
• Participate in code reviews — both receiving and providing constructive, quality-focused feedback
• Continuously incorporate operational feedback and incident learnings to improve solution robustness

Platform Evolution & Innovation

• Analyse platform metrics, system behaviour, and technical debt to identify and propose optimisation opportunities
• Stay current with emerging JavaScript ecosystem trends, tooling advances, and financial services technology practices
• Explore and propose innovative approaches to meet evolving business and client needs
• Contribute to the ongoing migration away from legacy coupling — service decomposition, API-first integration, event-driven patterns
• Experiment with and adopt AI-assisted development tools (GitHub Copilot, Claude Code) to enhance productivity and output quality

Stakeholder Engagement & Collaboration

• Communicate technical options, constraints, and design trade-offs clearly to both technical and business stakeholders
• Collaborate across development, architecture, QA, and business analysis teams for effective integrated delivery
• Support shared ownership of team outcomes and contribute positively to an engineering culture of craft and accountability
• Mentor and coach junior and mid-level developers — code reviews, pairing, knowledge sharing — without carrying formal management responsibility

Operational Support & Risk Management

• Provide production support for live systems — enhancements, defect resolution, incident investigation
• Identify technical and delivery risks early; escalate clearly and propose mitigation approaches
• Ensure solutions are built with security, compliance, and operational controls embedded from the outset
• Contribute to technology roadmap input and platform evolution planning

Desired Experience & Qualification

Must-Have Technical Skills

• JavaScript (Advanced) — deep understanding of the language, async patterns, ES6+, modular development
• Angular (Advanced preferred) OR React (Advanced) — production-grade component development, state management, performance
• Node.js / Express — RESTful API development, middleware, service integration
• Java / Spring Framework — back-end service development, Spring Boot, REST controllers, JPA/Hibernate
• HTML5 & CSS3 — semantic markup, responsive design, cross-browser compatibility
• HTTP/HTTPS & API integration — REST, JSON, OAuth, API gateway patterns
• Relational Databases & SQL — schema design, query optimisation, ORM usage
• Git-based version control — branching strategies, pull requests, code review workflow
• Unit & integration testing — Jest, JUnit, Mockito — not optional, expected
• Docker & containerisation — building, running, and debugging containerised applications

Highly Valued (Differentiating Skills)

• TypeScript — strongly typed Angular/React development
• RxJS — reactive programming patterns in Angular applications
• Microservices architecture — service decomposition, inter-service communication, event-driven design
• CI/CD pipelines — Jenkins, GitHub Actions, GitLab CI, or similar
• Cloud deployment — AWS, Azure, or GCP — application hosting and service integration
• GraphQL — API design and consumption
• Kafka or message-queue integration — event-driven patterns
• AI-assisted development tools — GitHub Copilot, Claude Code, or similar — active practitioner
• Financial services domain knowledge — investments, insurance, or wealth management platforms

Experience & Background

• 6–10+ years of hands-on JavaScript and Java development in production environments
• Demonstrated delivery of enterprise-grade full-stack applications — front-end AND back-end
• Experience in financial services, insurance, investment platforms, or comparable regulated environments preferred
• Proven ability to work across the full SDLC — not just a single layer or framework
• Track record of maintaining high code quality standards in a team environment
• Comfortable influencing engineering standards without requiring a formal leadership title

Education

• Bachelor's degree in Computer Science, Information Systems, Engineering, or related technical discipline
• Equivalent practical experience will be considered where supported by a demonstrable portfolio or track record
• Relevant JavaScript and/or Java certifications are advantageous

Package & Remuneration

Basic incl. Benefits - CTC

Hybrid working