Senior Backend Engineer - Foundations

Technical Skills

Deep, hands-on expertise in identity and access concepts: authentication, session management, SSO, SAML, OAuth 2.0 and OpenID Connect (OIDC), and a genuine interest in this space - this work rewards people who care about it

A strong backend engineering track record; Golang experience is highly valued, but a strong backend generalist with real enthusiasm for identity work is very welcome to apply

Experience designing and executing safe, incremental migrations in a live, high-traffic system - dual writes, data backfills, staged rollouts

Comfortable reasoning about permission and access systems across a distributed, multi-tenant architecture, where organisation and membership boundaries matter at scale

Relational data modelling and PostgreSQL at a level that includes schema design and safe migrations other engineers build on

Familiarity with cloud platforms such as AWS, including operating and debugging production services

Compliance frameworks relevant to identity data, such as SOC 2, are a bonus rather than a requirement

Behavioural Skills

Autonomous by default - comfortable taking a domain and driving it forward without waiting to be told what to do

Willing to challenge the status quo and push for better ways of solving identity problems, not just execute a spec

Genuinely passionate about the identity and access space - this is what makes the detailed configuration work satisfying rather than a grind

Collaborative: works closely within a small pod, shares context generously, and helps peers rather than working in isolation

AI Skills

Integrates agentic AI tools (such as Claude) into daily software delivery workflows as a core habit.

Can demonstrate production experience building an AI-assisted automation or workflow that delivered measurable improvements.

Critical evaluator: critically assesses AI-generated code and suggestions for accuracy, quality, and security.

At 6 months: Fully owns authentication and session management end-to-end with minimal oversight, and has successfully delivered at least one live migration with zero customer disruption.

Recognised as a self-starter who proactively drives initiatives forward and serves as a trusted technical resource for identity topics.

Actively helps shape and refine the pod's AI-assisted delivery practices.

Equity with high growth potential, and a competitive salary

Flexible working arrangements

Access to professional and personal training and development opportunities

Hackathons, Workshops, Lunch & Learns

In-house Culinary Crew serving up daily breakfast, lunch and snacks

Barista coffee machine, craft beer on tap, boutique wines and a range of non-alcoholic beverages

Wellbeing initiatives such as EAP services and generous parental leave policy

Quarterly celebrations and team events

On-site gym, table tennis, board games, books library, and pet-friendly offices

We’re committed to building inclusive teams and cultivating a sense of belonging so our people can bring their whole authentic selves to work each day. We seek to make reasonable adjustments throughout our recruitment process to create an even playing field for all candidates. Thanks to the tireless efforts of the entire Mitti team we’ve built an incredible culture which has seen us recognised as a Best Place to Work in Australia , the US and the UK .

Even if you don't meet every requirement listed in the ad, please consider applying for this role. We prioritise inclusion and value individuals with potential over a checklist of qualifications. Don't rule yourself out, hit that apply button if this job resonates with you

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