Istari

Senior Software Engineer

Istari

full-time

Posted on:

Location Type: Remote

Location: MassachusettsUnited States

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Salary

💰 $160,000 - $200,000 per year

Job Level

About the role

  • Own the end-to-end architecture of the Core Platform, including backend services, SDKs, AI-enabled components, and related infrastructure.
  • Design and implement scalable APIs, event-driven systems, distributed services, and AI-integrated capabilities (including AI/ML and MCP integrations).
  • Architect systems that reliably incorporate AI models into production environments, with strong attention to observability, latency, cost management, and failure handling.
  • Lead API design and implementation with a focus on usability, performance, and long-term maintainability.
  • Architect and evolve microservices using domain-driven design principles.
  • Build platform abstractions and primitives that enable AI-driven workflows and agent-based capabilities.
  • Partner closely with Product, Infra, and Customer Success teams to deliver seamless, customer-centric integration capabilities.
  • Provide technical leadership, mentorship, and architectural guidance to engineers.
  • Establish and elevate engineering best practices across design, development, testing, and operations.

Requirements

  • 5+ years of professional software engineering experience, with at least 2 years in senior roles.
  • Proven experience building scalable, reliable, and secure distributed systems, including systems that integrate AI/ML capabilities.
  • Experience integrating AI-powered features into production systems, with an understanding of performance, reliability, and governance considerations.
  • Deep expertise in REST API design and implementation.
  • Experience designing and operating event-driven architectures.
  • Strong coding skills across multiple layers of the stack (backend services, SDKs, developer tooling, and AI-integrated systems).
  • Strong understanding of microservices architecture and domain-driven design.
  • Strong proficiency in Python (object-oriented and functional programming).
  • Experience with Golang and TypeScript.
  • Track record of technical leadership, mentorship, and cross-functional collaboration.
  • Excellent communication skills with the ability to influence at both technical and strategic levels.
  • Must be a US citizen living within the United States.
Benefits
  • Medical/Dental/Vision
  • Employee Premiums are 100% Company Paid
  • Life Insurance
  • Flexible Work Hours
  • Unlimited Paid Time Off (PTO) with federal government holidays
  • Competitive Compensation
  • 401k
  • Company Stock Options
  • Home Office Setup Budget
  • Reimbursement for approved trainings and subscriptions
  • Conferences (travel, lodging, and fees)
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
API designevent-driven systemsdistributed systemsAI integrationmicroservices architecturedomain-driven designPythonGolangTypeScriptscalable systems
Soft Skills
technical leadershipmentorshipcross-functional collaborationcommunicationinfluence