Senior Software Engineer II (Fullstack)

TL;DR

Senior Software Engineer II (Fullstack): Building and optimizing AI-driven fulfillment and servicing systems for major ECommerce and Brick and Mortar merchants with an accent on scalable, event-driven architectures. Focus on implementing AI/agentic features in production, designing robust APIs, and mentoring engineers to drive continuous technical improvement.

Location: Remote (US)

Salary: $171,000 - $198,000 per year

Company

AI-driven platform enhancing post-purchase experiences for retailers through automated fulfillment and customer service.

What you will do

• Develop scalable, event-driven, AI-native applications for refunds, replacements, and reverse logistics.
• Own large-scale features from initial design through deployment, release, and monitoring.
• Design and implement quality AI/agentic features within production systems.
• Collaborate with platform teams to refine and enhance overall system architecture.
• Mentor engineers through code reviews, pairing, and design collaboration.
• Drive the adoption of AI developer tooling and best engineering practices.

Requirements

• 8+ years of full-stack development experience.
• Must be based in the United States.
• Proven experience building distributed, highly available systems on AWS using serverless architecture.
• Demonstrated track record of shipping AI/LLM features to production.
• Expertise in TypeScript, Node.js, and React.
• Strong skills in API design, data modeling, and context engineering.

Culture & Benefits

• Competitive salary with stock options in a fast-growing early-stage startup.
• Comprehensive medical, dental, and vision benefits.
• 401(k) plan with financial guidance from Morgan Stanley.
• Generous and flexible paid time off policy.
• Collaborative and supportive work environment with a diverse team.