Our 'black belt' specialists are leaders in their domains: digital champions, delivery-focused experts, top-tier security professionals, AI thought leaders, and engineering best practice advocates.
As
1
of Australia's fastest-growing software businesses, Software at Scale delivers cutting-edge technology solutions that power mission-critical platforms.
We solve complex engineering challenges at scale, driving quality, performance, and resilience through the strength of our people.
The Role & The Challenge
We are seeking an exceptional, highly proactive
AI-Empowered Senior Android Engineer
(proficient in up-to-date Kotlin) to take our existing high-scale Android application to the next level.
This is a massive-scale upgrade mandate for a financial-grade digital platform handling high volumes of sensitive financial transactions and credit card data.
If you are content with picking up standard UI tickets, this is not the role for you.
We want an elite Android specialist who understands banking-grade security inside and out.
You will step into a high-trust, fully empowered environment where you are expected to take complete technical ownership of the app's native architecture, security posture, and high-performance API integration layers.
AI Access & Claude Code:
We actively encourage our engineers to solve problems using AI.
You will have full access to enterprise GenAI tooling, including
Claude Code
, to accelerate refactoring, code generation, and pipeline management.
Key Responsibilities
Native App Modernisation:




Spearhead the deep architectural upgrade of our existing Android application, leveraging the absolute latest Kotlin libraries, frameworks, Jetpack Compose, and coroutine architectures.
Banking-Grade Mobile Security:
Architect bulletproof security controls.
Implement hardware-backed key management using the
Android KeyStore
, secure storage of payment tokens, and seamless Passkey (WebAuthn) authentication flows.
High-Scale Financial Transactions:
Ensure uncompromised stability, speed, and data protection for large-scale financial transactions and direct credit card entry pathways.
Complex API Integration:
Orchestrate high-throughput, secure communication layers integrating a massive suite of backend REST and GraphQL microservices with minimal latency.
Performance & Efficiency:
Optimise memory footprints, thread execution, and network rendering to guarantee ultra-efficient, butter-smooth app processing under heavy load.
AI-Driven Engineering:
Extensively utilise
Claude Code
and modern agentic tools to test, refactor, and build out native features faster.
DevOps & CI/CD:
Maintain automated mobile CI/CD pipelines (Fastlane, GitHub Actions) for seamless, secure Google Play deployments and automated testing suites.
What You Bring




Large-Scale Mobile Experience:
Proven commercial history of designing, building, and scaling large-scale consumer or enterprise Android apps used by millions.
Kotlin Mastery:
Deep, hands-on expertise in modern
Kotlin
(Jetpack Compose, coroutines, Flow) using the absolute latest platform libraries and ecosystem standards.
Fintech Security Expertise:
Mandatory commercial background in banking or financial services mobile apps.
You have direct, hands-on experience handling credit card entry compliance, secure tokenisation, and implementing
Passkeys
alongside
Android KeyStore
encryption.
API Integration Pro:
Extensive experience managing complex network layers, certificate pinning, payload encryption, and integrating a high volume of enterprise APIs.
Performance Obsession:
A rigorous focus on app efficiency, battery optimisation, smooth frame rendering, and offline-first data synchronisation.
AI Fluency:
Practical experience using
Claude Code
and AI tooling to accelerate mobile development workflows.
What We Offer
The chance to work for
1
of Australia's fastest-growing and most innovative software businesses.
Full access to cutting-edge AI tooling, including Claude Code.
Meaningful, hands-on mobile engineering work on mission-critical financial software.
Clear growth pathways from Senior to Staff and beyond.
A low-ceremony, delivery-focused environment that values engineers who own outcomes.
Competitive remuneration and benefits.

📌 Senior Android Engineer (Kotlin) (New South Wales)
🏢 Software@Scale
📍 New South Wales