Member of Technical Staff (Software Engineer, Agent Capabilities)

Perplexity

$130K — $180K *
Information Technology
8 - 10 years of experience
Job Overview by Ladders

Qualifications

  • 8+ years of software engineering experience with a focus on complex product delivery.
  • Strong full-stack development skills across user-facing and backend systems.
  • Excellent product instincts to translate ambiguous needs into tangible solutions.
  • Data-driven approach to define metrics and iterate on system performance.
  • Experience in designing reusable systems or platforms for engineering efficiency.
  • Strong execution skills to convert vague requirements into durable products with user impact.
  • Passion for frontier AI capabilities and agent systems.

Responsibilities

  • Investigate and capitalize on emerging AI model behaviors for product development.
  • Build and refine cohesive ecosystems of Skills, Workflows, and Artifacts.
  • Own capabilities from product interfaces to backend systems and operations.
  • Develop scalable platform infrastructure for high-volume user and agent interactions.
  • Collaborate with cross-functional teams to translate complex agent behaviors into user-friendly experiences.
  • Set technical direction and lead design reviews to enhance product quality.

Benefits

  • Collaborative work environment focused on innovation and AI-driven projects.
  • Opportunities for personal and professional growth in a fast-paced setting.
  • Influence over product direction within a cutting-edge technology sector.
  • Access to the latest tools and technologies in AI and engineering.
Full Job Description
In 2026, we launched Computer, the defining product for the new era of agentic AI. Millions of people now use Perplexity to transform knowledge into action, and every action an agent takes is metered, budgeted, and settled through the billing platform this role owns.

Perplexity Computer is one of the defining products of the new era of agentic AI. Millions of people use Perplexity to transform knowledge into action, and the Capabilities team sits at the intersection of frontier AI research and product innovation, building the foundations that shape how users and agents solve increasingly complex tasks.

As every major breakthrough in AI models creates new possibilities, the Capabilities team is responsible for turning frontier AI breakthroughs into reusable product capabilities. We are often the first to evaluate emerging model capabilities, define how they should appear in the product, and transform them into reliable, production grade experiences for both users and agents. This is a highly leveraged role with broad ownership at the intersection of frontier AI research, agent systems, platform engineering, and product innovation.

Tech Stack: Python | Go | PostgreSQL | DynamoDB | AWS | TypeScript | React
What you'll do
  • Investigate emerging frontier-model behaviors and identify opportunities to turn them into product capabilities. Help define how advances in reasoning, planning, memory, learning, and agent collaboration appear in the product.
  • Build and evolve Skills, Workflows, and Artifacts into a coherent ecosystem. Shape the architecture, abstractions, and product experiences that enable both users and agents to compose increasingly sophisticated solutions for complex real-world tasks.
  • Own capabilities end-to-end, from user-facing products and interfaces to backend services, evaluation, data models, and production operations.
  • Build scalable platform infrastructure and backend systems that power capability execution, sharing, and lifecycle management across high volume user and agent interactions.
  • Collaborate closely with PM, Design, Data Science, Sales, Research, to identify high-impact opportunities in both consumer and enterprise customer experiences, validate emerging capabilities, and translate complex agent behaviors into simple, reliable product experiences.
  • Set technical direction on ambiguous problems and raise the bar through design reviews, mentorship, and technical leadership.
Qualifications
  • Typically 8+ years of professional software engineering experience, with a track record of owning and delivering complex products or systems from conception to production. Exceptional candidates with less experience and an outstanding record of impact are encouraged to apply.
  • Strong full-stack engineering fundamentals, including experience building user-facing products, backend services, and scalable distributed systems that serve high traffic and large user bases.
  • Strong product judgment and instincts; you turn vague needs into simple, reliable systems and ship without waiting for perfect specs.
  • Comfort with data-informed decisions; you define the metrics and evals that prove a system works, and iterate on them.
  • Experience designing abstractions, platforms, or reusable systems that enable other engineers, users, or automated systems to accomplish complex tasks.
  • Strong execution: you can take ambiguous product needs, break them down, and ship durable systems with clear user impact.
  • Genuine interest in frontier AI capabilities, agent systems, and excitement for rapidly exploring, evaluating, and productizing new model behaviors.
Nice to have
  • Experience building agentic systems (tool calling, subagents, long-running or autonomous task execution).
  • Experience building developer platforms or reusable-capability primitives (SDKs, plugin systems, workflow engines).
  • Experience with evaluation, benchmarking, or quality systems for ML/LLM-powered products.
  • Time spent at a fast-growing startup or on a high-ownership engineering team.

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