Staff Software Engineer, App Platform

Responsibilities

• Lead the design and evolution of Fieldguide's core platform services, including foundational systems, APIs, and shared primitives
• Build platform capabilities that compound the leverage of product and AI engineers
• Define the architecture for how new product capabilities get delivered across SaaS, enterprise single-tenant, and government-cloud environments
• Partner with product, design, and AI engineering leaders to translate customer needs into platform investments
• Drive cross-team initiatives that improve product velocity, system reliability, and consistency
• Own standards for service design, data modeling, and platform integration patterns
• Maintain and evolve the internal developer platform including deployment tooling and agentic engineering capabilities
• Mentor senior and mid-level engineers across the organization

Requirements

• 10+ years of experience in software engineering with significant time building product-facing platforms or foundational application services
• Strong product instincts and track record of shipping platform capabilities that unlocked customer outcomes
• Deep experience designing APIs, services, and shared systems that other engineers build on top of
• Strong fluency with modern cloud platforms (AWS preferred), Kubernetes, and distributed systems
• Track record of operating as a technical leader across multiple teams
• Excellent judgment on platform vs. product team responsibilities
• Strong software engineering fundamentals for contributing to and reviewing complex codebases
• Excellent written and verbal communication skills

Nice-to-Haves

• Experience building platforms that power AI-native products including agent frameworks, model orchestration, or LLM-powered surfaces
• Experience designing platforms that support both multi-tenant SaaS and single-tenant enterprise deployments
• Experience as a founding or early platform engineer at a vertical SaaS or enterprise AI company