Software Dev Engineer II, Long Term Planning and Forecasting

Build the AI system that decides how Amazon plans. PIXIE is a new agentic AI platform that routes natural-language planning questions to specialist agents, generates trustworthy data-grounded answers, and automates business narratives — all serving analysts across Amazon's supply chain and finance organizations.

About the role

We're hiring an SDE-II to own core platform subsystems in a greenfield, high-ambiguity environment where your architectural decisions ship to production within weeks. You'll design and build production systems at the intersection of LLMs, multi-agent orchestration, and large-scale data retrieval. You'll work on novel problems: agentic routing with confidence calibration, stochastic evaluation, and authorization-aware knowledge retrieval. You'll ship visible impact — PIXIE is LTPF's flagship AI investment with VP-level visibility and direct analyst adoption metrics. Tight engineering team (8 SDEs), high autonomy, rapid iteration cycles.

Responsibilities

• Design, build, and operate core platform services for PIXIE's agentic AI system — including agent runtime, caching/cost-latency optimization, observability, and evaluation infrastructure
• Build and maintain the tool/agent registry that enables new capabilities to be discovered and invoked without redeployment
• Develop automated evaluation and regression harnesses for non-deterministic LLM outputs — hallucination detection, drift monitoring, and faithfulness scoring
• Implement authorization-aware retrieval ensuring users never see content they aren't entitled to
• Collaborate with Scientists on grounding methodology, causal analytics productionization, and retrieval-quality optimization
• Operate what you build — on-call rotation, runbooks, operational dashboards, and continuous improvement of system reliability
• Mentor teammates on system design, code quality, and operational best practices

About the team

Long Term Planning and Forecasting (LTPF) owns the models, systems, and tools that power Amazon's long-range demand planning — the forecasts that drive billions in inventory, capacity, and capital decisions. PIXIE is LTPF's AI-native platform: a conversational intelligence layer that lets analysts ask questions in natural language and get trustworthy, data-grounded answers backed by Amazon's planning data.

We're a small engineering team building from zero to production. Our stack spans multi-agent orchestration, retrieval-augmented generation, causal inference, and automated business narrative generation. We operate like a startup inside Amazon — fast iteration, high ownership, direct customer feedback loops — with the backing of Amazon-scale data and infrastructure. We value builders who thrive in ambiguity, care deeply about correctness (especially when LLMs are involved), and want to shape the architecture of a system from its earliest days.

Requirements

• 3+ years of non-internship professional software development experience
• 2+ years of non-internship design or architecture (design patterns, reliability and scaling) of new and existing systems experience
• 1+ years of software development engineer or related occupational experience
• 1+ years of designing and developing large-scale, multi-tiered, multi-threaded, embedded or distributed software applications, tools, systems, and services using: C#, C++, Java, or Perl experience
• 1+ years of Object Oriented Design experience
• Bachelor's degree or foreign equivalent in Computer Science, Engineering, Mathematics, or a related field
• Experience programming with at least one software programming language

Preferred Qualifications

• 3+ years of full software development life cycle, including coding standards, code reviews, source control management, build processes, testing, and operations experience
• Bachelor's degree in computer science or equivalent

Pay

USA, WA, Bellevue - $143,700.00 - $194,400.00 USD annually

Benefits

• Sign-on payments and restricted stock units (RSUs)
• Health insurance (medical, dental, vision, prescription, Basic Life & AD&D insurance and option for Supplemental life plans)
• Employee Assistance Program (EAP) and Mental Health Support
• Medical Advice Line
• Flexible Spending Accounts
• Adoption and Surrogacy Reimbursement coverage
• 401(k) matching
• Paid time off
• Parental leave

Learn more about our benefits at amazon.jobs/en/benefits.