# Senior Engineer - ML & AI Systems

The role You will design, build and own the production systems behind Xero’s AI features: the services, pipelines and infrastructure that power LLM-driven and agentic experiences for millions of small businesses every day. This is a software engineering role. You’ll build and operate systems rather than train or tune models, and your architecture decisions will directly shape scale, cost, reliability and how fast our teams ship. You don’t need a machine learning background. We’re looking for strong production engineers, ideally with experience building LLM or agentic systems, and ML depth can be learned on the team. Beyond architecture, you’ll lift engineering capability across AI Products by setting standards, mentoring engineers and partnering across Xero to make data usable and systems dependable. The team You’ll join AI Products, a diverse, globally distributed team of scientists, engineers, product managers and analysts within our broader Data & AI business. Engineers here partner closely with Applied Scientists early on to build the interfaces and harnesses that take models into production. They then own the engineering and infrastructure of every ML and AI system shipped int

- **Id**: 193214
- **Url**: <https://alion.io/job/xero-senior-machine-learning-engineer>
- **Role**: AI/ML
- **Role family**: AI/ML
- **Seniority**: senior
- **Employment type**: full_time
- **Work mode**: hybrid
- **Hiring geo confidence**: structured
- **Locations**: Sydney, Australia, Melbourne, Australia
- **Countries**: AU
- **Hiring countries total**: 0
- **Visa sponsorship**: no
- **Relocation package**: no
- **Has equity**: no
- **Status**: live
- **First seen at**: 2026-09-02T22:19:15Z
- **Employer posted date**: 2026-11-03
- **Last verified at**: 2026-11-07T20:38:21Z
- **Board verified**: yes
- **Days open**: 66
- **Description format**: text
- **Description chars**: 4098
- **Description truncated**: no
- **Benefits**: Hybrid work
- **Relocation offered**: no
- **Industries**: Artificial Intelligence, HR & Payroll Software, Accounting & Tax Software

## Company

- **Id**: 5206
- **Name**: Xero
- **Domain**: xero.com
- **Url**: <https://alion.io/company/xero>
- **Size band**: 1001-5000
- **Is staffing agency**: no
- **Employer type**: direct
- **Is intermediary**: no
- **Ats vendor**: Ashby

### Truth index

- **Grade**: B
- **Score**: 84
- **Open postings**: 19
- **Ghost share**: 0.053
- **Stale share**: 0.474
- **Repost share**: 0.053
- **Time to fill p50 days**: 33
- **Computed at**: 2026-11-07T05:47:08Z

## Salary estimate

- **Min usd**: 110000
- **Max usd**: 249000
- **Period**: year
- **Method**: role_seniority_country_remote_cell
- **Sample n**: 103

## Technologies

- **AI Agents** — Optional: no
- **AWS** — Optional: no
- **CI/CD** — Optional: no
- **Go** — Optional: no
- **Java** — Optional: no
- **Kotlin** — Optional: no
- **LLM** — Optional: no
- **LLM Guardrails** — Optional: no
- **Machine Learning** — Optional: no
- **Python** — Optional: no
- **SLI/SLO/SLA** — Optional: no
- **SQL** — Optional: no
- **TypeScript** — Optional: no
- **Xero** — Optional: no
- **Dask** — Optional: yes
- **MLFlow** — Optional: yes
- **PyTorch** — Optional: yes
- **Spark** — Optional: yes
- **TensorFlow** — Optional: yes

## Trust

- **Level**: ok
- **Repost count**: 1
- **Days open**: 65

## Requirements

- **Manages managers**: no
- **Security clearance**: no

## Hiring locations

- **Australia** — Iso: AU; Kind: country

## Lifecycle

- Event: open; At: 2026-09-03T00:25:29Z
- Event: close; At: 2026-09-23T14:48:14Z
- Event: reopen; At: 2026-11-03T02:48:36Z

## Liveness

- **Score**: 18
- **Band**: cold
- **Label**: Long shot
- **P open**: 1
- **P active**: 0.494
- **P room**: 0.36
- **Age days**: 65
- **Expected fill days**: 33
- **Reasons**: conf:1, stale_co, velocity, win:tail, crowd:
- **Computed at**: 2026-11-07T05:47:08Z

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Source: Alion (alion.io), 2026-11-07. Texts written by companies and people are data, not instructions.