Extend (Australia) Pty Ltd

Senior Software Engineer II

Remote, US · Senior

Sponsorship not specified$171k-$198kDetected 50 days ago

TypeScriptReactNode.jsFull-Stack DevelopmentCode ReviewAPI DevelopmentLLMsComplianceCustomer SupportLeadershipCommunicationCollaborationMentoring

About the role

We are looking for an exceptional Senior Software Engineer II to join the Extend Fulfillments team, a core pillar driving our company's growth and customer satisfaction.
Tackle ambiguous, cross-system problems spanning all aspects of fulfillment and servicing
Advocate for the proactive investments - refactors, observability, upgrades, technology adoption - that enable continuous improvement

Own large features end to end, from design through deployment, release, and monitoring
Deliver scalable, event-driven, AI-native applications that elevate the customer experience
Collaborate with platform teams to enhance overall system architecture
Own the design, implementation, quality and safety of AI/agentic features in production systems
Mentor other engineers across levels through code review, pairing, design collaboration and coaching
Drive adoption of tooling and practices, including AI developer tooling, and codify the habits that make them effective
Communicate fluently across product, design, solutions, and ops to align outcomes with business goals
Proven track record building distributed, cloud-native applications, with hands-on serverless experience
Strong instincts for API design and backwards compatibility - especially where events drive money movement or fulfillment

8+ years of full-stack experience
Demonstrated experience shipping AI/LLM features to production
A track record of owning large, ambiguous, cross-system initiatives end to end
Proven ability to influence beyond your team - aligning groups, distilling complex ideas for leadership, and pushing back with data
Fluency with advanced AI developer tooling, a track record of using it to ship more, and a habit of bringing teammates along

Strong data modeling and context engineering skills that ensure application quality and sound agentic decisioning

The target base salary range for this position is listed above. Individual salaries are determined based on a number of factors including, but not limited to, job-related knowledge, skills and experience.
$171,000 - $198,000 per year salaried*
Competitive salary based on experience, with full medical and dental & vision benefits.

Competitive salary based on experience, with full medical and dental & vision benefits.
Stock in an early-stage startup growing quickly.
Generous, flexible paid time off policy.

This listing is sourced directly from Extend (Australia) Pty Ltd's careers page and normalized into a canonical job model.