Senior Java Developer — Hybrid, Security-Focused & Global Impact

Nasdaq; Council of the City of Sydney; Hybrid; AUD 120,000 - 190,000; Full time

Benefits offered by this job

Private health insurance

Employee stock purchase plan

Equity grant

Annual bonus

Counseling sessions through Lyra

Global mentoring program

Subscription to e-learning platforms

Fitness

Wellness

Job summary

Nasdaq in Sydney, Australia, seeks a Senior Java Developer to own end-to-end development across backend systems, security, and cross‑platform work. The role combines building new features with evolving existing products, reporting to the Director – Software Engineering, and requires a proactive, curious mindset to solve complex problems with global impact.

The position is located in Sydney with a hybrid work arrangement (in‑office at least 2 days a week, potentially increasing).

Qualifications

• Bachelor's degree in Computer Science, Engineering, or a related field — or equivalent practical experience
• At least 3 years strong, hands-on Java development skills with a solid understanding of software design principles, data structures, and algorithms
• Experience working with relational and/or NoSQL databases — including design, analysis, and querying
• Proven experience with continuous integration and deployment practices Demonstrated ability to write secure, testable, and maintainable code
• Experience with cross-platform or multi-environment development

Responsibilities

• Design, develop, test, and deploy software solutions that meet or exceed product and client requirements
• Build and maintain security-focused applications of increasing scope and complexity
• Extend and improve existing systems — adding functionality, enhancing performance, and adapting to new environments
• Ensure cross-platform compatibility across all deliverables
• Monitor system improvements post-deployment and iterate based on performance outcomes
• Contribute to architecture, database design, and technical direction as needed

Skills

Java development

Software design principles

Data structures

Algorithms

CI/CD practices

Cross-platform development

Relational databases

NoSQL databases

Secure coding

Education

Bachelor's degree in Computer Science, Engineering, or a related field

Tools

AWS

GCP

Azure

Job description

Nasdaq in Sydney, Australia, seeks a Senior Java Developer to own end-to-end development across backend systems, security, and cross‑platform work. The role combines building new features with evolving existing products, reporting to the Director – Software Engineering, and requires a proactive, curious mindset to solve complex problems with global impact.

The position is located in Sydney with a hybrid work arrangement (in‑office at least 2 days a week, potentially increasing).