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CORTO

Software Engineer – .NET/React

CORTO

. Collaborate with stakeholders to translate greenfield ideas and concepts into functional applications.

Posted 5/18/2026full-timeSydney • 🇦🇺 AustraliaMid-LevelSeniorWebsite

Tech Stack

Tools & technologies
AWSDockerJavaScript.NETNext.jsPostgresReact

About the role

Key responsibilities & impact
  • Collaborate with stakeholders to translate greenfield ideas and concepts into functional applications.
  • Join a collaborative, low-bureaucracy team that encourages experimentation and iteration.
  • You'll have full responsibility over designing, building and maintaining these applications.
  • Build matching UI in the React frontend, talking to the BFF layer that sits in front of the microservice.
  • Tackle UX debt alongside feature work: slow screens, confusing flows, inconsistent components, accessibility gaps, and anything that makes the product harder to use than it should be.
  • Build and maintain REST endpoints in the .NET 8 API (controllers, services, repositories, EF Core migrations).
  • Extend the import pipeline (bulk and single imports, NDJSON streaming progress, conflict detection, force-overwrite flows).
  • 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.

Requirements

What you’ll need
  • 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 with database systems, data modelling as well as at least one backend language or platform, EF Core: writing migrations, fluent configuration, debugging query plans.

Benefits

Comp & perks
  • 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.

ATS Keywords

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Hard Skills & Tools
full-stack web developmentReactNext.jsC#.NET 8AWSDockerCI/CDAPI designEF Core
Soft Skills
collaborationexperimentationiterationproblem-solvingcommunication