Senior Platform Engineer - Deterministic AI Payroll Engine

ANALYTIC INSIGHTS PTY LTD; Sydney; On-site; AUD 180,000 - 260,000; Full time

Job summary

ANALYTIC INSIGHTS PTY LTD in Sydney is seeking a Principal Engineer to lead the engineering voice for an AI platform that determines Australian employment law requirements and the correct pay. You will set engineering standards, guide offshore development, own performance, security, and model integration, working closely with the founders.

The role is based in Sydney and offers ownership of the engineering foundations that the product depends on, with a demanding problem space requiring rigor,

Qualifications

• Substantial software engineering experience, typically ten or more years, including technical leadership of systems running in production.
• Strong backend engineering in a modern language such as Python, TypeScript or Java, with deep experience in relational databases and data modelling.
• Experience building rules-driven or calculation-heavy systems where results must be correct, reproducible and explainable, such as payroll, billing, tax, insurance or financial systems.
• Hands-on experience with cloud infrastructure (AWS preferred), CI/CD pipelines, automated testing and observability.
• Experience leading or reviewing the work of distributed or offshore development teams, with the judgement to raise quality without slowing delivery.
• Clear written communication.

Responsibilities

• Lead the technical build of the platform's core components: the calculation engine, the instrument and rates data model, document ingestion, and the retrieval and verification layer.
• Turn approved solution designs into working architecture and code, working closely with the Principal Solution Designer and resolving gaps between design and build early.
• Set and enforce engineering standards across the team, including code review, automated testing, continuous integration, documentation and architecture decision records.
• Provide day-to-day technical leadership to our overseas development team, including design review, pairing and final review of work before it is merged.
• Own the platform's performance and stability: load testing, response times, monitoring and alerting, so the system behaves predictably as usage grows.
• Build security and privacy in from the start, including Australian data residency, access control, secrets management and safe handling of the payslips and payroll data users upload.
• Integrate large language models as replaceable components, with evaluation and guardrails, and keep them out of any part of the system that produces a number.
• Lead the engineering work for each annual award rate change, so updated rules are tested and released before they take effect.

Job description

ANALYTIC INSIGHTS PTY LTD in Sydney is seeking a Principal Engineer to lead the engineering voice for an AI platform that determines Australian employment law requirements and the correct pay. You will set engineering standards, guide offshore development, own performance, security, and model integration, working closely with the founders.

The role is based in Sydney and offers ownership of the engineering foundations that the product depends on, with a demanding problem space requiring rigor,