Senior Software Engineer

Pet Circle

Senior Engineer architecting complex technical solutions for Pet Circle's growth story. Leading incident responses and mentoring engineers in a hybrid work environment.

Posted 5/11/2026full-timeSydney • 🇦🇺 AustraliaSeniorWebsite

Tech Stack

Tools & technologies

DockerKubernetesNode.jsPythonReact

About the role

Key responsibilities & impact

Architecting solutions that span multiple domains or services, anticipating second and third-order effects, making explicit technical trade-offs, and documenting them in a way that informs the squad's long-term direction
Providing structured, growth-oriented mentoring to engineers at all levels, with feedback that accelerates their progression rather than just correcting current work
Owning the technical response to major incidents, diagnosing root causes, understanding blast radius, and driving the fix while the Tech Lead coordinates stakeholder communication
Proactively identifying and addressing technical debt that is causing real problems including performance degradation, fragility, or delivery friction, and prioritising refactors based on business impact
Spotting architectural risks before they become incidents, and writing technical documentation including RFCs, runbooks and ADRs that elevates the entire team's understanding of the system
Establishing squad-level guardrails for AI tool adoption and code generation, defining what tools to use and how to use them safely, and architecting robust AI integrations with full consideration of cost, latency and security
Translating deep technical challenges into clear business narratives for stakeholders, and challenging leadership respectfully when technical decisions need protecting

Requirements

What you’ll need

Extensive experience architecting and delivering complex, multi-domain technical solutions in a product-led engineering environment
Deep stack mastery including strong working knowledge of React, Node and/or Python, plus hands-on experience with containerisation and orchestration (Docker/Kubernetes)
A track record of leading incident response for major production issues, including root cause analysis and blast radius assessment
Demonstrated experience proactively managing technical debt and driving architectural improvements that measurably improve system health
Experience providing structured mentoring to senior engineers with demonstrable outcomes, not just peer support
Experience establishing and enforcing coding standards across a squad, and writing technical documentation that others actually use
A strategic approach to AI tool adoption: you can define guardrails, architect integrations, and evaluate trade-offs around cost, latency and security, not just output quality
Ability to translate architectural decisions into compelling narratives for non-technical stakeholders

Benefits

Comp & perks

Heaps of development opportunities - stretch projects, secondments and unlimited learning courses via Go1
Flexible working environment
Up to 50% employee discount
Product sample giveaways
Pawrental leave and wellbeing leave
Team charity volunteer days

ATS Keywords

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Hard Skills & Tools

architecting solutionsReactNodePythoncontainerizationorchestrationDockerKubernetesroot cause analysistechnical debt management

Soft Skills

mentoringcommunicationstrategic thinkingproblem-solvingleadershipcollaborationfeedback deliveryrisk assessmentnarrative translationstakeholder engagement