Perplexity is an AI-powered answer engine founded in December 2022 and growing rapidly as one of the world’s leading AI platforms. Perplexity has raised over $1B in venture investment from some of the world’s most visionary and successful leaders, including Elad Gil, Daniel Gross, Jeff Bezos, Accel, IVP, NEA, NVIDIA, Samsung, and many more. Our objective is to build accurate, trustworthy AI that powers decision-making for people and assistive AI wherever decisions are being made. Throughout human history, change and innovation have always been driven by curious people. Today, curious people use Perplexity to answer more than 780 million queries every month–a number that’s growing rapidly for one simple reason: everyone can be curious.
Introduction
At Perplexity AI, the Sonar API powers AI-native search, retrieval, and automation for some of the world’s most innovative companies. Our Support team is the frontline for developer and enterprise success—ensuring that customers can build fast, reliable, and differentiated products on top of Sonar’s capabilities.
We don’t just answer tickets—we partner deeply with customers, Product, and Engineering to architect solutions, debug complex integrations, and influence the roadmap based on real-world developer needs.
About the Role
We’re looking for a Customer Success Engineer to be a hands-on technical partner for our Sonar API customers. This is a deeply technical, customer-facing role—equal parts solution architect, developer advocate, and technical program manager.
You’ll work end-to-end with developers, product teams, and executives at our customers’ organizations—from designing their Sonar-powered architecture to optimizing query performance and implementing new features. You’ll also contribute to internal tooling, docs, and demos that make Sonar adoption easier and more impactful.
This role is ideal for TPMs, solutions engineers, or software engineers who have moved into customer-facing work but still want to build, prototype, and problem-solve daily.
Key Responsibilities
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Serve as the dedicated technical partner for strategic Sonar API customers, guiding them through architecture design, integration, and optimization.
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Troubleshoot API performance, grounding quality, and integration challenges—diving directly into code and logs when needed.
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Prototype example integrations, search workflows, and demos to accelerate adoption and inspire customer innovation.
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Collaborate with Engineering and Product to resolve high-priority escalations, ensuring minimal downtime and maximum reliability.
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Capture and synthesize customer feedback to improve Sonar’s API features, SDKs, and developer experience.
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Maintain deep familiarity with Sonar’s latest capabilities, competitive positioning, and best practices, and use this knowledge to advise customers.
What We’re Looking For
Must-Haves
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5+ years in technical support engineering, software engineering, or solutions engineering, with direct application development experience.
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Strong API integration skills—able to design and debug REST/JSON payloads, manage auth flows, and optimize latency.
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Proven track record of diagnosing complex technical issues across distributed systems, APIs, and customer environments.
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Excellent communicator who can work with both developer teams and non-technical stakeholders.
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Bachelor’s degree in Computer Science or equivalent hands-on experience.
Nice-to-Haves
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Experience working with search, retrieval-augmented generation (RAG), or AI/ML APIs.
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Background in developer tools or platform engineering, especially in high-scale or low-latency environments.
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Strong familiarity with Python or JavaScript for building integrations, SDKs, or prototypes.
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History of working at startups or small teams where you owned customer projects end-to-end.
Why Join Us
The Sonar API is quickly becoming a core infrastructure layer for AI-powered search and automation. As a Customer Success Engineer, you’ll help shape how our customers—from startups to Fortune 500s—bring their most ambitious ideas to life.
You’ll be joining a fast-moving, high-impact team where your technical skills, creativity, and ability to bridge product and customer needs will directly influence both Sonar’s roadmap and its market success.
