Senior Platform Engineer - AI-Driven APIs & Systems

Istari; United States; On-site; USD 145,000 - 190,000; Full time

Job summary

Istari is seeking a Senior Platform Engineer to own the end-to-end Core Platform architecture, including backend services, SDKs, AI-enabled workflows, and supporting infrastructure.

You will design scalable APIs and event-driven systems, mentor engineers, and partner with product, infra, and customer success to deliver extensible, reliable platform capabilities for traditional integrations and AI-driven use cases.

Qualifications

• 5+ years of professional software engineering experience.
• Proven experience building scalable, reliable, and secure distributed systems, including AI/ML-enabled components.
• Strong REST API design and event-driven architecture skills.
• Proven technical leadership and cross-functional collaboration.

Responsibilities

• Own the end-to-end architecture of the Core Platform, including backend services, SDKs, AI-enabled components, and infrastructure.
• Design and implement scalable APIs, event-driven systems, distributed services, and AI-integrated capabilities.
• Architect systems that integrate AI models in production with focus on observability, latency, cost, and failure handling.
• Lead API design with usability, performance, and long-term maintainability.
• Mentor engineers and elevate engineering best practices across the team.

Skills

Distributed systems

REST API design

Python

Microservices

Leadership

Job description

Istari is seeking a Senior Platform Engineer to own the end-to-end Core Platform architecture, including backend services, SDKs, AI-enabled workflows, and supporting infrastructure.

You will design scalable APIs and event-driven systems, mentor engineers, and partner with product, infra, and customer success to deliver extensible, reliable platform capabilities for traditional integrations and AI-driven use cases.