Building and designing systems that enhance AI products and features

• Collaborate with stakeholders to translate greenfield ideas and concepts into functional applications.
• Join a collaborative, low-bureaucracy team that encourages experimentation and iteration.
• Sydney based, hybrid working - 2 days in the office.

About CORTO

We are CORTO, a cutting-edge software company dedicated to revolutionising the legal industry. Our mission is to empower legal practitioners with AI-driven solutions that streamline their workflow, boost productivity, and provide more efficient client service.

Our team of AI experts and engineers collaborate to develop intelligent software tailored to the unique needs of lawyers, paralegals, and legal assistants.

Our innovative AI solutions automate routine tasks, simplify document management, and enhance decision-making, allowing legal professionals to focus on what they do best—providing expert legal counsel.

We’re rapidly scaling from 80 to 150+ employees, with a highly technical workforce where around 90% of the team are developers and engineers. Working alongside our Sydney-based team of passionate high achievers, you’ll join a fast-growing technology business where things rarely stay the same for long - and if you’re smart, caring, and ambitious, you’ll be in great company.

What you’ll do

You'll collaborate with stakeholders to translate greenfield ideas and concepts into functional applications with the support and infrastructure of our wider Engineering organisation, you'll have full responsibility over designing, building and maintaining these applications.

This role is ideal for someone who enjoys building polished user experiences, writing clean and maintainable code, and contributing to a collaborative engineering culture.

To make this happen you will

• Design, build, and maintain features end to end across the backend and the frontend.
• Build and maintain REST endpoints in the .NET 8 API (controllers, services, repositories, EF Core migrations) and the matching React UI through the BFF layer that sits in front of the microservice.
• Work across the whole stack: data model and persistence, service and business logic, API contracts, and the user-facing screens that consume them.
• Extend the data import and processing pipelines that bring external content into the platform.
• Improve performance, reliability, and maintainability, and help pay down technical debt as you go.
• Write unit tests (xUnit, Moq, FluentAssertions) and integration tests against a real PostgreSQL instance via WebApplicationFactory.
• Diagnose issues across the stack using Datadog traces, PostgreSQL queries, and S3 inspection.

What you’ll bring

• 5+ years of professional experience in full-stack web development.
• Expertise in React and Next.js, building and scaling production web applications.
• Solid C# and .NET (8 preferred, but 6/7 experience is fine if you can ramp up).
• Hands-on AWS experience (S3, SQS, Lambda, ECS, IAM, SSM)
• Experience with Docker and CI/CD pipelines

• Strong understanding of API design, backend architecture, and distributed system principles.
• Experience working with Word and Open XML documents: manipulating content controls and merge fields, and converting between document formats.

• Experience with database systems, data modelling as well as at least one backend language or platform, EF Core: writing migrations, fluent configuration, debugging query plans
• Comfortable building background and queue-based processing (workers, just-in-time jobs) and streaming APIs such as NDJSON.
• Experience integrating with third-party REST APIs and handling large binary assets in object storage.
• Performance tuning instincts: profiling, optimising queries, removing N+1s, and batching data access.
• A knack for building diff, comparison, and review or merge interfaces.

You are the type of person who

• You constantly ask the who, what, where, when, and why, seeking deeper understanding and better solutions
• Writes pragmatic and simple code that achieves the desired commercial outcome. You understand the trade-offs between quality and velocity and strike the right balance for an early-stage product.
• Collaborate openly and positively.
• Anticipates future needs and builds with extensibility in mind.
• You're comfortable making decisions with incomplete information and iterating based on feedback.
• You are driven to make a real difference through your work. You find genuine joy in seeing users benefit from what you create.

CORTO is an inclusive, people-first company committed to breaking down institutional barriers that keep people from reaching their potential. If you meet some, but not all the requirements above, we encourage you to still submit your application.

Why join CORTO?

• Your work matters. We solve real world problems that improve and support local, everyday law firms. So they can do their best work for the people in the communities they serve.
• Make an impact. You won’t be another ‘cog in the wheel’ here. We give full trust and autonomy for you to be heard, to work on big & complex projects – and to make a real difference.
• Work with a group of authentic, passionate people who love what they do.
• Well-funded and global. CORTO is part of ATI Global – one of the largest international LegalTech companies.
• Flexible and hybrid working. We engage, share, and collaborate on ideas and workflows.
• Career and learning opportunities - we move fast and need smart people to get us where we're going. We are a scaling business and looking for people who want to grow with us.
• Have fun with us. Celebrations. Socials. Sports teams. Access to sailing and yacht events.
• We value your well-being with additional time off, gym membership and other perks.
• Fast-paced tech environment, if we don't disrupt ourselves someone else will do it!
• Access to LEAP Home - a program unique to the ATI Group to support you in buying your primary residence.