Software Engineer – .NET, AI

CORTO

Software Engineer building scalable .NET backend services and AI capabilities for CORTO, a legal-tech company revolutionising legal workflows. Shaping a greenfield AI platform with APIs, AWS cloud solutions, and engineering best practices in Sydney.

Posted 8/17/2026full-timeSydney • 🇦🇺 AustraliaMid-LevelSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in developing and maintaining backend services using C# and .NET, with a strong focus on designing scalable APIs and integrating AI capabilities. Proven ability to collaborate effectively with cross-functional teams and deliver high-quality solutions in a fast-paced environment.

Highest-signal resume keywords

C# ProgrammingASP.NET Web APIAWS Cloud ServicesAI-Assisted Development ToolsSOLID Principles

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Backend DevelopmentAPI DesignRESTful APIsCode ReviewScalable Systems DesignPerformance OptimizationContext-Engineering TechniquesAI IntegrationClean ArchitectureMCP Server Integration

Soft Skills

Clear CommunicationEffective CollaborationSolution-Focused Problem SolvingOwnershipPositive Attitude

Industry Keywords

Cloud-Based SolutionsGreenfield CodebaseCross-Functional TeamsEngineering Best PracticesFast-Paced Environment

Tech Stack

Tools & technologies

ASP.NETAWSCloud.NET

About the role

Key responsibilities & impact

Develop and maintain backend services using C# and .NET
Design and evolve scalable APIs for internal and external consumers
Integrate AI-powered capabilities into existing systems
Work with AWS services to build and deploy cloud-based solutions
Collaborate with cross-functional teams to deliver clean, effective solutions
Contribute to code reviews and engineering best practices
Continuously improve systems, processes, and code quality
Work on a largely greenfield codebase within the AI Platform team
Design, build, test, and maintain scalable APIs and backend services
Shape and test AI capabilities embedded in the platform

Requirements

What you’ll need

5+ years of strong experience with .NET / C#
Experience building RESTful APIs using ASP.NET Web API for multiple consumers
Solid understanding of SOLID principles and clean architecture
Hands-on experience with AWS or other cloud platforms
Experience using AI-assisted development tools to design, write, test, and review software
Ability to critically evaluate AI-generated code for correctness, security, performance, and maintainability
Experience applying prompt and context-engineering techniques to improve software-development outcomes
Experience building or integrating MCP servers, clients, or tools is an advantage
Experience designing scalable systems and identifying and resolving performance bottlenecks is an advantage
Ability to take ownership and deliver end-to-end
Clear communication and effective collaboration
Practical, solution-focused problem solving
Comfort working in a fast-paced environment
Positive and pragmatic attitude

Benefits

Comp & perks

Flexible, hybrid working
Career and learning opportunities
Celebrations, socials, and sports teams
Access to sailing and yacht events
Wellness focus with additional time off
Gym membership and other perks
Access to LEAP Home, a program supporting employees in buying their primary residence
Trust and autonomy to work on big and complex projects