Staff AI Engineer

Job Description

Job Description

About Iru

Iru is the AI-powered security & IT platform used by the world’s fastest-growing companies to secure their users, apps, and devices. Built for the AI era, Iru unifies identity & access, endpoint security & management, and compliance automation—collapsing the stack and giving IT & security time and control back.

Iru is backed by some of the smartest investors in tech—General Catalyst, Tiger Global, Felicis, Greycroft, and First Round Capital. In July 2024, Iru raised $100 million from General Catalyst, valuing the company at $850 million. Customers include Notion, Cursor, Lovable, Replit, and Mercor, and Iru partners with industry leaders such as ServiceNow and AWS. Iru was named to Forbes’ America’s Best Startup Employers 2025 list for employee engagement and satisfaction.

The Opportunity

We are seeking a highly skilled and experienced Staff AI Engineer to join our Iru Platform Engineering team. In this role, you will play a critical part in both building the core AI platform and directly applying large language models (LLMs) to deliver intelligent features across Iru. You will focus on backend systems that enable scalable, reliable, and secure AI-powered capabilities, while also working hands-on with LLMs to solve real user problems and drive product innovation.

In this role, youʼll focus on creating reusable infrastructure, frameworks, and services that enable data scientists and software engineers to rapidly experiment, deploy, and monitor AI at scale.

Youʼll collaborate across engineering, product, and research teams to ensure Iruʼs AI offering is secure, reliable, and optimized for performance, while enabling innovation and experimentation.

How You'll Make a Difference Day to Day :

• Architect, design, and implement scalable AI platform services and components that enable the development of intelligent agents and LLM-powered applications, while supporting the deployment and orchestration of LLMs and other AI models.
• Apply LLMs and other AI technologies directly to build and enhance Iruʼs intelligent features, working closely with product and engineering teams to deliver impactful solutions.
• Build LLM-powered agents that autonomously reason through complex workflows.
• Develop full-stack product surfaces (backend & frontend) that incorporate AI into user experiences.
• Familiarity with the AI development stack (RAG, vector databases, LLM observability, eval pipelines).
• Partner with Product Engineering teams to design ML-driven features that automate IT security workflows.
• Implement scalable APIs and microservices that expose AI models and services to product teams.
• Collaborate with our core services infrastructure team to support the execution, monitoring, logging, and automated evaluation of AI agents, ensuring high reliability and performance of AI services in production environments.
• Work closely with the Data Science team responsible for building LLMs / agents.
• Integrate with multiple LLM providers (e.g., OpenAI, Anthropic, xAI, Google) and manage model selection, routing, and fallback strategies for optimal performance and cost.
• Drive the adoption of best practices in AI privacy, security, and compliance, including secure data handling, and regulatory adherence.
• Optimize platform performance, scalability, and cost-efficiency, leveraging cloud-native technologies and distributed systems.
• Stay current with advancements in AI infrastructure, agent-focused MLOps, and LLM applications, and apply relevant innovations to enhance Iruʼs AI platform.
• Collaborate cross-functionally with product, frontend, and data teams to deliver seamless, reliable, and user-centric AI experiences.

We’d love to hear from you if you have

Benefits & Perks

Competitive salary

100% individual and dependent medical + dental + vision coverage

401(K) with a 4% company match

20 days PTO

Flexibility to work from anywhere for up to 30 days per year

Iru Wellness Week the first week in July

Equity for full-time employees

Lunch stipend provided Monday through Friday

Up to 16 weeks of paid leave for new parents

Paid Family and Medical Leave

Modern Health mental health benefits for individuals and dependents

Fertility benefits

Working Advantage employee discounts

Onsite fitness center

Free parking

Exciting opportunities for career growth

We are excited to be serving a significant need for a fast-growing market, and are proud of the high-performing team we have brought together so far. If you’re someone who wants to engage in new, exciting projects that will challenge your skills in the best way possible, we would love to connect with you.

At Iru, we believe in fostering an inclusive environment in which employees feel encouraged to share their unique perspectives, leverage their strengths, and act authentically. We know that diverse teams are strong teams, and welcome those from all backgrounds and varying experiences.

Iru is proud to be an equal opportunity employer committed to diversity and inclusion in the workplace. Qualified applicants will be considered for employment without regard to race, color, religion, national origin, age, sex, sexual orientation, gender identity, physical or mental disability, protected veteran or military status or any other status protected by applicable law.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.