AI-Driven Fulfillment Software Engineer II

OpenKrill; United States; On-site; USD 140,000 - 160,000; Full time

Benefits offered by this job

Stock options

Flexible paid time off

401(k) with Morgan Stanley guidance

Medical, dental & vision benefits

Job summary

Extend seeks a Software Engineer II to join the Fulfillments team, building features for refunds, replacements, and reverse logistics. You will own features end to end, advocate for robust design, and deliver AI-powered, scalable applications while collaborating with cross-functional partners to optimize the merchant and customer experience.

The role emphasizes shipping AI/LLM features, strong API discipline, and close work with product and design to achieve business goals.

Qualifications

• 4+ years of full-stack experience.
• Production systems on AWS, including serverless.
• Experience shipping AI/LLM features to production.
• API design, versioning, idempotency and backwards compatibility.
• Own features end to end with ambiguous problems.
• Production SPA with modern state management and design collaboration.
• Data modeling and context engineering for agentic features.
• Daily AI tooling usage and sharing practices with teammates.
• Clear communication across product, design, solutions and engineers.

Responsibilities

• Build and ship features across fulfillment including refunds, replacements, reverse logistics.
• Own features end to end, from design through deployment, release and monitoring.
• Deliver scalable, event-driven, AI-native applications that elevate the customer experience.
• Build single-page applications, partnering with design on UX and owning client/server state.
• Collaborate with senior engineers and platform teams on system design; raise risks early.
• Build, test, and monitor AI features in production with quality and safety.
• Use AI developer tooling daily and share effective practices with the team.
• Identify proactive investments (refactors, observability, upgrades) and deliver them.
• Communicate clearly with product, design, solutions and other engineering teams.

Skills

Full-stack engineering

AWS

Serverless

AI/LLM features

API design

SPA development

Data modeling

Clear communication

Tools

React

Node.js

Job description

Extend seeks a Software Engineer II to join the Fulfillments team, building features for refunds, replacements, and reverse logistics. You will own features end to end, advocate for robust design, and deliver AI-powered, scalable applications while collaborating with cross-functional partners to optimize the merchant and customer experience.

The role emphasizes shipping AI/LLM features, strong API discipline, and close work with product and design to achieve business goals.