A scaling investment startup is building a customised technology platform enabling their investors to easily access their assets for portfolio knowledge, acquisition and monitoring.

The company is scaling deliberately and seeking a Senior Software Engineer to scale it’s MVP to a fully fledged product. This is an environment where innovation meets impact. A place where you won’t just write code but actively shape the future of investment technology.

Scaleup is helping them attract a Senior Full Stack Java Software Engineer to play a pivotal role in the development of its core investment platform. Working closely with the CTO and founding team, this individual will contribute to architecting scalable systems, driving technical excellence, providing guidance on technical decision making, developing their core platform and mentoring junior engineers (in the future).

The role involves working across the full stack, utilising Java, Spring Boot, modern front-end with vanilla JavaScript, AWS, and MySQL to build and optimise a platform handling large-scale data processing and real-time transactions.

As the business grows, particularly over the upcoming years. the potential for this role to grow is huge either into Principal as an IC or Technical Team lead/Manager depending on your path.

Key Responsibilities

• Develop and maintain the company’s core investment platform using Java, Spring Boot, JavaScript, and modern frameworks.
• Influence system architecture, transitioning from monolithic to microservices-based solutions.
• Optimise performance and security, ensuring scalable MySQL database management and adhering to best practices for AWS cloud infrastructure.
• Conduct code reviews and mentor junior engineers, fostering a strong engineering culture.
• Collaborate closely with the leadership team, contributing to technical decision-making and long-term platform strategy.

Your natural curiosity will play a vital part of the role as you will be solving business problems in afast-paced, agile environment.

You'll bring a deep understanding of software architecture, a passion for building high-performance applications, and the ability to navigate complex codebases with ease.

Tech Skills

• 10+ years of professional experience as a Java developer.
• Strong expertise in Java, Spring Boot, Hibernate, and JDBC.
• Proficiency in front-end technologies (JavaScript, HTML, CSS, and modern frameworks).
• Extensive experience with relational databases like MySQL (query optimisation, indexing).
• Deep knowledge of AWS (EC2, S3, Lambda, RDS, API Gateway, CloudWatch, etc.).
• Familiarity with Git version control and DevOps principles.
• Understanding of design patterns (MVC, CQRS, Event-Driven).

Things to go with tech skills:

• Strong problem-solving abilities and technical decision-making skills.
• Ability to quickly understand and navigate complex systems and established code bases.
• A passion for building from the ground up, particularly in a startup environment.
• A mindset for high-performance engineering.
• Bachelor’s degree in Software Engineering or Computer Science etc.
• AWS Associate certification or working experience that is equivalent to
• Experience in building software solutions involving significant amounts of data processing and analysis.

Nice to have Skills & Experience

• Experience in mobile app development.
• Flaire for UI/UX.

Why Join?
This is an opportunity to be part of an ambitious, fast-moving startup where engineering talent is valued and given real autonomy. The company offers:

• Competitive salary that is top of the market (Up to $200,000 + super).
• Cutting-Edge Tech Stack working on a greenfield application
• Hybrid working environment: with a modern city-based office near Wynyard (you will need to be based in or around Sydney to come into the office a couple of days a week
• You will need to have full working rights, be an AU citizen or PR etc.
• Autonomy & Ownership: The ability to make impactful technical decisions.
• Collaborative Culture: Work alongside industry experts, founders, and investors.
• A Role with Purpose: Shape the future of fintech and investment technology.

Have the skills to pay to bills? Apply now or reach out directly to [email protected]

ScaleUp has been partnering with technology businesses since 2022. We thrive on scaling technology teams that solve business problems. We believe connecting people with an ethos and mindset to stimulate a cohesive engineering culture is the best way to do this.

Sam Elderfield has been applying the same high level of commitment to scaling technology teams throughout his 15-year career in technology recruitment. As a co-founder of ScaleUp Recruitment, he loves identifying and attracting the right people to help solve your business problems, helping your business scale and exceed the results you are looking for.