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Principal Engineer (AI)

300 000 - 500 000$
Формат работы
onsite
Тип работы
fulltime
Грейд
senior
Английский
b2
Страна
US
Вакансия из списка Hirify.GlobalВакансия из Hirify Global, списка международных tech-компаний
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Описание вакансии

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TL;DR
Principal Engineer (AI): Owning and evolving production-grade enterprise systems for an agentic software development platform with an accent on backend reliability, full-stack execution, and LLM-powered workflows. Focus on designing LLM validation loops, combining graph and vector databases for complex-domain reasoning, and solving scalability, performance, and operational reliability challenges.

Location: On-site in Cambridge, Massachusetts, United States

Salary: $300,000–$500,000 per year, plus bonus and equity.

Company

AI software development platform building enterprise software autonomously through an agentic development platform.

What you will do

  • Own mission-critical production systems end to end, including correctness, scalability, performance, reliability, and operational excellence.
  • Design, build, and ship high-impact backend systems and features that improve product reliability and customer value.
  • Architect scalable services and cloud infrastructure with Python, REST, gRPC, Kubernetes, and Terraform.
  • Build and operate LLM-powered systems and validation loops for evaluation, regression testing, tracing, and failure analysis.
  • Design data architectures across relational, NoSQL, graph, and vector databases for enterprise applications and semantic retrieval.
  • Set engineering quality standards through hands-on technical leadership and long-term technical ownership.

Requirements

  • Principal, Staff+, or comparable experience independently driving complex technical initiatives.
  • Expertise in Python, backend frameworks, microservices, REST, and gRPC, with proficiency in Node.js and JavaScript.
  • Proficiency in AWS and at least one additional cloud platform such as GCP or Azure.
  • Advanced production experience with Kubernetes and Terraform, including highly available systems, monitoring, scalability, and performance optimization.
  • Strong SQL and NoSQL knowledge, including databases such as PostgreSQL, MySQL, MongoDB, Cassandra, or DynamoDB, plus familiarity with graph and vector databases.
  • Hands-on experience operating LLM-powered systems in production and contributing across frontend, backend, infrastructure, and AI systems.

Nice to have

  • Working knowledge of LangSmith or comparable LLM observability and evaluation tools.
  • Familiarity with OpenAI, Anthropic, or similar model providers.

Culture & Benefits

  • Fast-paced environment focused on decisive execution and rapid iteration.
  • In-person collaboration with high standards for technical quality and teamwork.
  • Strong focus on customer outcomes and long-term partnerships.
  • Bonus and equity in addition to the base salary.

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