Full Stack Engineer

Role Overview

Seeking a Senior Fullstack Engineer (React + .NET) to join a web engineering squad supporting the CommSec website, specifically the Pre‑Trade & Research product space. This role focuses on delivering a modern, high‑performance frontend experience in React/TypeScript backed by robust .NET services. The team is building a greenfield React application, including a brand‑new homepage planned for rollout within the next 6 months. This is a product‑led, feature‑ownership role where engineers take ideas from concept to customer impact.

Team Structure & Ways of Working

Small, cross‑functional product squad

Typically includes:

1 Product Owner

1 Digital Product Manager

1 Business Analyst

6 Engineers

Engineers own features end‑to‑end, including:

Requirement shaping with Product & BA

Build & automated testing

Release readiness

Ownership of frontend and backend components they deliver

Continuous improvement and technical uplift

Core Responsibilities

Lead development of new frontend experiences using React + TypeScript (approx. 80% frontend)

Build and maintain backend features using .NET (approx. 20% backend)

Work with the business to shape and flesh out features, owning them from ideation to delivery

Contribute to building the greenfield React architecture and component library

Support the upcoming rebuild of the CommSec homepage in React

Ensure high standards of code quality, performance, accessibility, and security

Participate in CI/CD workflows, testing, and release processes

Work within a regulated financial environment and maintain strong risk awareness

Required Experience

Frontend Engineering (Primary Focus — 80%)

Expert‑level experience with React and TypeScript

Strong ability to build scalable, modular UI architectures

Experience with:

Component‑based design

Client‑side state management

Modern frontend tooling (Webpack, Vite, Babel, etc.)

Automated testing (Jest, React Testing Library, Cypress)

Proven experience delivering production‑grade customer‑facing web applications

Strong understanding of performance optimisation and accessibility

Backend Engineering (Secondary Focus — 20%)

Solid experience with .NET / .NET Core

Ability to build and maintain APIs or backend services

Understanding of distributed systems and integration with modern frontends

Exposure to cloud hosting (AWS/Kubernetes) beneficial but not required

Ways of Working

Comfortable working in product‑led, feature‑ownership squads

Experience collaborating with Product Owners and BAs to refine features

Strong communication skills and ability to explain technical decisions

Comfortable working with ambiguity and shaping requirements

Experience with agile, iterative delivery

Able to operate in environments with high scrutiny, quality, and risk requirements

Nice to Have

Experience in financial services or regulated environments

Experience contributing to design systems or shared UI component libraries

Familiarity with GraphQL, Node.js, or other modern frontend/backend tooling

Experience with accessibility‑first design