Founding Backend Engineer for AI Paralegal (Sydney Hybrid)

Corto Pty Ltd; Sydney; Hybrid; AUD 140,000 - 210,000; Full time

Benefits offered by this job

Hybrid work schedule

Career development

Flexible hours

Job summary

CORTO’s AI Paralegal is seeking a founding engineer to help build the next generation of AI-driven legal software. You’ll shape architecture, drive technical excellence, and own key backend components in a fast-moving startup setting.

You will collaborate with legal-domain experts and a product team to deliver scalable, efficient workflows within a serverless Python monorepo on AWS, blending AI with automation for real-world impact.

Qualifications

• 8+ years of full stack software development experience.
• Experience with service-oriented architectures including Docker, Lambda, ECS.
• Strong Python and/or TypeScript skills.
• Demonstrated experience with LLMs or generative AI systems and their constraints.
• Experience with DynamoDB and SQL databases.

Responsibilities

• Design, build, and maintain architecture and services powering AI Paralegal workflows end-to-end.
• Design, build, and maintain the frontend UX.
• Build multimodal LLM pipelines over legal documents using Claude on AWS Bedrock (where applicable).
• Improve LLM accuracy with schema validation and targeted feedback loops.
• Instrument the pipeline with metrics (error rates, retries, latency) to enable evidence-led optimisation.

Skills

Full stack development

Python

TypeScript

LLMs / Generative AI

Observability

Tools

Docker

Lambda

ECS

DynamoDB

MySQL/PostgreSQL

Job description

CORTO’s AI Paralegal is seeking a founding engineer to help build the next generation of AI-driven legal software. You’ll shape architecture, drive technical excellence, and own key backend components in a fast-moving startup setting.

You will collaborate with legal-domain experts and a product team to deliver scalable, efficient workflows within a serverless Python monorepo on AWS, blending AI with automation for real-world impact.