AI/ML Software Engineer (Full-Stack)

About LEAP

LEAP is the leading provider of Legal Practice Management Solutions in the world and is part of ATI – one of the largest international LegalTech companies. For more than 30 years, our curiosity and commitment to continual improvement has kept us reimagining productivity tools for lawyers and their staff to support our guiding purpose, to ‘Help lawyers who help people’. The market-leading software we develop, and support is used by more than 71,000 lawyers and their staff in small and medium-sized law firms.

Working alongside our international team of passionate high achievers, you’ll join a fast-growing technology business where things seldom stay the same for long. With more than 1000 smart, caring and ambitious ‘LEAPsters’ working together across Australia, Canada, the United States, the United Kingdom, the Republic of Ireland, Poland and New Zealand, you’ll find yourself in good company here.

Meet the Global Business Systems team
We’re a fast-growing business built on cutting-edge technology, and our Global Business Systems team are the experts who keep everything running seamlessly while helping us stay ahead of the curve.

From ensuring our people have the right tools and technology, to using data and analytics to solve complex business challenges, to digitising and improving the way we work, this team sits at the heart of how we scale and evolve. They combine technical expertise with commercial thinking to power both our internal success and the experience we deliver to our clients.

If you’re a tech-savvy problem solver with ambition and a drive to make a real impact, this is your opportunity to build a meaningful career while helping shape the future of LegalTech.

What you'll do

As the AI/ML Software Engineer you’ll evolve the intelligence layer behind AskLEAP, our AI-powered helpdesk solution that answers 6,000 to 8,000 customer questions each month. This is a backend-leaning full stack role where you will design and build the retrieval and orchestration layer that sits between the application and the information it relies on. Today, AskLEAP draws primarily from curated content sources. You’ll expand its robustness and context-awareness by integrating additional structured and unstructured data sources, including internal systems, customer instance and environment data, and third-party platforms such as Salesforce.

You’ll define and implement the decision and orchestration logic behind our AI agents, determining what information is required, how it is retrieved, how tools are invoked, and how responses are generated in a grounded, reliable, and observable way. Working closely with Engineering, Product, Analytics, and Content, you’ll ensure our AI systems are aligned with defined business rules and deliver trusted, real-world outcomes.

Beyond AskLEAP, this role helps establish reusable AI orchestration and retrieval patterns that can support future AI-enabled products, including use cases that leverage structured business data and governed metrics from our enterprise analytics platform.

To make this happen, you will look after:

AI agent and intelligence layer

• Design and implement retrieval and context assembly pipelines across structured and unstructured data sources
• Build and manage LLM orchestration logic, including routing, tool usage, multi-step workflows, confidence thresholds, and fallback strategies
• Ensure responses are grounded in authoritative data sources and governed business metrics, preserving metric definitions and business logic integrity throughout AI workflows
• Create evaluation and regression frameworks to monitor accuracy, consistency, and reliability over time
• Develop reusable orchestration patterns and standardised tool interfaces that form the foundation for scalable AI capabilities across multiple business domains
• Partner with Analytics to integrate structured semantic-layer outputs (governed business metrics and APIs) alongside unstructured knowledge sources into AI agent workflows
• Implement logging, monitoring, and observability for AI workflows to ensure transparency and production reliability

Backend engineering (70%)

• Develop and scale .NET 8 APIs and services powering AI features
• Integrate LLM APIs, including streaming and tool-calling patterns
• Implement secure authentication, validation, logging, and error handling
• Improve reliability, performance, and scalability of AI-enabled services
• Contribute to CI/CD, Docker-based deployments, and production optimisation

Frontend collaboration (30%)

• Work within React and TypeScript applications to deliver AI functionality end to end
• Build or adapt UI components to support AI interactions
• Collaborate with frontend engineers to ensure seamless integration and user experience

What you'll bring

• 3+ years of software development experience
• Strong C# and .NET experience including ASP.NET Core, REST APIs, middleware, and dependency injection
• Comfortable contributing to React and TypeScript when needed
• Experience building and operating LLM-based systems in production environments
• Hands-on experience with RAG or similar retrieval-based AI patterns, including vector databases or embeddings
• Experience evaluating and improving LLM outputs for grounding, confidence, and consistency
• Experience deploying to AWS using Docker or similar cloud and container environments
• Solid understanding of HTTP, API security such as OAuth and JWT, and production performance debugging
• Working proficiency in Python for AI and data workflows

Consider it a bonus if you have:

• Experience building multi-step agent or tool-calling workflows
• Experience working with structured business data or governed metrics
• Experience implementing AI evaluation or monitoring frameworks
• Enterprise system integrations such as Salesforce
• DevOps exposure including CI/CD, containerisation, or infrastructure as code

Tech Stack

• Frontend: React, TypeScript, Vite
• Backend: .NET 8, ASP.NET Core, REST APIs
• Infrastructure: AWS, Docker
• AI Integrations: OpenAI / LLM APIs
• Enterprise Integrations: Salesforce

You are the type of person who

• Has a collaborative, proactive mindset and you’re comfortable working in a fast-paced, evolving environment.
• Has strong communication skills, able to translate technical concepts into business outcomes.
• Is a self-starter attitude with a willingness to learn, experiment, and take ownership of tasks.
• Is a team player who understands that diverse opinions make a team and the benefit of achieving goals and decisions together.
• Is curious - you're not afraid to ask questions, explore and share your thoughts and ideas.

LEAP 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 LEAP?

• Your work matters. Helping lawyers help people sits at the heart of everything we do. 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.
• Flexible and hybrid working. We'd like to find this person in Sydney, but we want you to work in a way that suits you and we're open to flexible arrangements that support you.
• Grow your career with us. Our founder Christian Beck has been building legal tech businesses for over 30 years. There are opportunities galore to expand your career based on where your interests lie. We're not afraid to pivot based on market conditions - you will always have the opportunity to stay ahead of the curve and do your best work here.
• Have fun with us. Celebrations. Socials. Sports teams. Access to sailing and yacht events.
• We value your well-being - enjoy an additional paid wellbeing day every year, free gym membership, corporate dental plan and weekly massages in the office.
• Work in a new, beautiful office space – with a catered lunch and breakfast every week, fully stocked kitchen and an on-site barista.
• Access to LEAP Home - a program unique to LEAP to support you in buying your primary residence. 

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