In-Demand Backend java Jobs in Ultimo, Nsw

Client Full-Stack Engineer — IM Chat Platform, Android Focus
Binance —Sydney NSW
- Full-time
- Remote
- Management
- Computer Science
- Bachelor's degree
Quick Apply
Binance Accelerator Program - Applied AI Agent Engineer (Fully Remote)
Binance —Sydney NSW
- Full-time
- Remote
- Computer Science
- Master's degree
- Databases
Quick Apply
Pioneer Talent Program - Full Stack AI Engineer, Backend Oriented (Fully Remote)
Binance —Sydney NSW
- Full-time
- Remote
- Computer Science
- Bachelor's degree
- AI
Quick Apply
AI-native software developer
Law of the Jungle —Sydney NSW
- Full-time
- Remote
- Master's degree
- AWS
- POS
- Work from home
Quick Apply
AI-Native Engineer (Software Engineering)
PALO IT —Sydney NSW
- Full-time
- Hybrid work
- Azure
- AWS
- Software development
Quick Apply
13d
Backend Staff Engineer
Cartology —Surry Hills NSW
- Full-time
- Hybrid work
- Azure
- SQL
- AWS
- Work from home
6d
Backend Developer
Pyramid Global Technologies —Sydney NSW
- APIs
Principal Engineer - Java - Trade Validation
Macquarie Group Limited —Sydney NSW
- Full-time
- Hybrid work
- AWS
- APIs
- AI
- Annual leave
- Work from home
Senior Java Engineer
Macquarie Group Limited —Sydney NSW
- Full-time
- Hybrid work
- AWS
- Software development
- APIs
- Annual leave
- Work from home
Principal Software Engineer – Backend Platforms & Service Domains
Commonwealth Bank —Sydney NSW
- Full-time
- AWS
- APIs
- AI
Senior Backend Engineer (Agentic AI & Cloud Platforms)
Tata Consultancy Services —Sydney NSW
- Azure
- Master's degree
- APIs
Mobile Architecture
BMP Technologies —Sydney NSW
- $100,000.00 - $120,000.84 a year
- Full-time
- Azure
- APIs
- Agile
Quick Apply
13d
Identity Engineer
Assertiv Consulting —Sydney NSW
- $110,000 - $130,000 a year
- Full-time
- Azure
- AWS
- Scripting
Frontend Developers
Pyramid Global Technologies —Sydney NSW
- Management
- Engineering
- APIs
Customer Identity Engineer - CIAM (Full Stack & Security) - Contract
NCS Australia —Sydney NSW
- Urgently hiring
- Hybrid work
- Management
- AWS
- APIs
- Parental leave
Quick Apply
7d
Senior Backend Engineer
Megaport —Sydney NSW
- Full-time
- Remote
- SQL
- Software development
- APIs
- Parental leave
15h
Android Developer - Risk Control
Binance —Sydney NSW
- Full-time
- Remote
- Management
- Computer Science
- Engineering
- Work from home
Quick Apply
Senior Software Engineer - AI Team
Nuix —Sydney NSW
- Hybrid work
- Computer Science
- Master's degree
- AWS
Staff Software Engineer
Commonwealth Bank —Sydney NSW
- Full-time
- Master's degree
- AWS
- APIs
7d
Senior Backend Engineer - Entities Platform
Canva —Sydney NSW
- Full-time
- Hybrid work
- Databases
- AWS
- University
- Parental leave
Quick Apply

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backend java jobs near ultimo, nsw

Client Full-Stack Engineer — IM Chat Platform, Android Focus

Binance -
Sydney NSW

Quick Apply

Job Details

Full-time

Qualifications

CI/CD
Kotlin
Management
Computer Science
Software Engineering
iOS development
Full-stack development
Encryption
Slack
Git
Bachelor's degree
SDKs
GitHub
APIs
Security
AI
gRPC
Android development
Communication skills

Full Job Description

Binance is a leading global blockchain ecosystem behind the world’s largest cryptocurrency exchange by trading volume and registered users. We are trusted by 300+ million people in 100+ countries for our industry-leading security, user fund transparency, trading engine speed, deep liquidity, and an unmatched portfolio of digital-asset products. Binance offerings range from trading and finance to education, research, payments, institutional services, Web3 features, and more. We leverage the power of digital assets and blockchain to build an inclusive financial ecosystem to advance the freedom of money and improve financial access for people around the world.

Responsibilities

Design, develop, and maintain client-side applications for an instant messaging platform, with Android as the primary focus
Build core messaging features: real-time chat, group chat, media messaging, message sync, offline messaging, push notifications
Participate in client-side architecture design, ensuring consistent UX across Android, iOS, and Web
Use AI-powered tools (Cursor, GitHub Copilot, ChatGPT, Claude, etc.) to support cross-stack frontend development — read, debug, and modify iOS/Web codebases
Integrate RESTful APIs and WebSocket/MQTT/gRPC real-time communication protocols
Handle local storage, offline-first experience, message state management, and cross-platform sync logic
Optimize client performance: startup speed, memory, battery, network efficiency, UI responsiveness
Collaborate with backend teams on API design, integration, and production issue investigation
Senior level: mentor junior engineers, contribute to technical design decisions

Requirements

Bachelor's degree in Computer Science, Software Engineering, or a related discipline
Engineer: 1-3+ years of experience; Senior Engineer: 3-5+ years
Solid production experience in Android development (Kotlin and/or Java)
Good understanding of Android SDK, Jetpack components, asynchronous programming, and modern client-side architecture
Required: ability to use AI-powered development tools (Cursor, GitHub Copilot, ChatGPT, Claude, or similar) for cross-stack frontend development
Able to read, understand, debug, and make reasonable changes in iOS or Web codebases with AI tool support
Familiarity with WebSocket, MQTT, gRPC, or similar real-time communication protocols
Understanding of messaging concepts: message delivery, read status, sync, local persistence, offline support, push notifications
Good understanding of client-side performance optimization, memory management, multithreading, and security best practices
Familiar with Git, CI/CD pipelines, automated testing, and Agile processes
Strong debugging, problem-solving, ownership, and communication skills

Preferred Qualifications

Experience building IM products or communication platforms (WhatsApp, Telegram, WeChat, Discord, Slack, Messenger, etc.)
iOS development experience (Swift, SwiftUI, Objective-C)
Web frontend experience (TypeScript, React, Vue, Next.js)
Cross-platform client or mobile full-stack development experience
End-to-end encryption, message security, or cryptographic protocols experience
Voice/video calling or RTC technologies experience
Large-scale distributed messaging infrastructure experience
Fintech, payments, or Web3 applications experience
Open-source contributions or published apps on Google Play/App Store

Why Binance

Shape the future with the world’s leading blockchain ecosystem
Collaborate with world-class talent in a user-centric global organization with a flat structure
Tackle unique, fast-paced projects with autonomy in an innovative environment
Thrive in a results-driven workplace with opportunities for career growth and continuous learning
Competitive salary and company benefits
Work-from-home arrangement (the arrangement may vary depending on the work nature of the business team)

Binance is committed to being an equal opportunity employer. We believe that having a diverse workforce is fundamental to our success.

By submitting a job application, you confirm that you have read and agree to our Candidate Privacy Notice.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.

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Refine Your Search

backend java jobs in ultimo, nsw

Client Full-Stack Engineer — IM Chat Platform, Android Focus

Binance Accelerator Program - Applied AI Agent Engineer (Fully Remote)

Pioneer Talent Program - Full Stack AI Engineer, Backend Oriented (Fully Remote)

AI-native software developer

AI-Native Engineer (Software Engineering)

Backend Staff Engineer

Backend Developer

Principal Engineer - Java - Trade Validation

Senior Java Engineer

Principal Software Engineer – Backend Platforms & Service Domains

Senior Backend Engineer (Agentic AI & Cloud Platforms)

Mobile Architecture

Identity Engineer

Frontend Developers

Customer Identity Engineer - CIAM (Full Stack & Security) - Contract

Senior Backend Engineer

Android Developer - Risk Control

Senior Software Engineer - AI Team

Staff Software Engineer

Senior Backend Engineer - Entities Platform

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