Product Engineer, Napster API

LaunchTN; United States; Remote; USD 120,000 - 180,000; Full time

Benefits offered by this job

Flexible vacation

Health insurance

Wellness program (Teladoc & EAP)

Parental leave

401(k) retirement plan

Job summary

Napster Corp is seeking a product-focused engineer to partner with the Product Manager on the Napster API. You will prototype, test against real APIs, and present evidence-backed recommendations.

You’ll work autonomously yet collaboratively, spotting opportunities and delivering working versions rather than waiting for finished specs. You’ll help make website agents self-serve, build templates for Shopify and CMS platforms, and support engineering, sales, and partnerships with practical demos

Qualifications

• 4+ years in product engineering or hands-on technical product management on a developer platform or API.
• Proficient in JavaScript, the DOM, embedded scripts, iframes, and browser security rules.
• Experience shipping with AI development tools and evaluating models/APIs.
• Able to start before all requirements are finalized and deliver a working version.
• Proven ability to guide customers through integrations and build demos.
• Strong written communication and a habit of evidence-based recommendations.

Responsibilities

• Explore and prototype ideas from the product team, test and measure viability.
• Work daily with AI tools (e.g., Claude Code) to evaluate models, APIs and frameworks.
• Turn learnings into concise, actionable recommendations for the product team.
• Make website agents self-serve: build tooling, templates (Shopify & CMS platforms) and automations.
• Be the technical partner to engineering, sales and partnerships; assist with integrations and demos.
• Evaluate model decisions with evaluation suites and data to back recommendations.

Job description

Function: Product

Reports To: CPO

Location: Remote · Europe (CET to EET)

About Napster

Founded on the principle of democratizing access, first to music in 1999, now to expertise in the AI era, Napster has consistently remained at the forefront of technological shifts that empower users. Today, the company builds embodied, multimodal AI agents that engage employees and customers where they already work: through video presence, voice, and text. Designed to work alongside people rather than replace them, Napster’s agents carry institutional knowledge into every interaction, elevating the user’s experience and improving business outcomes. For more information, visit napster.com.

About the role

The Napster API lets a developer give their product a lifelike agent: a persistent identity that speaks, appears on video, remembers the people it talks to, calls your tools and MCP servers to get real work done, and answers or places phone calls. It is available to any developer, self-serve on napster.com and through the Microsoft Marketplace.

You are the technical partner to the Product Manager for the Napster API. The Product Manager sets the direction, the roadmap and the priorities. You make the product move faster along it: you take an idea, investigate it, build a version, test it against real APIs, models and frameworks, and come back with evidence and a recommendation. A big part of the value you add is getting from "we should try this" to "I built it, here's what we learned."

You are autonomous in how you work and collaborative in what we pursue. You don't wait for finished requirements. You spot the opportunity, run the experiment and bring the result to the product team.

What you'll do

Explore and prototype

• Take promising ideas from the product team, the field and your own observation, and find out whether they hold up: prototype them, test them, measure them.
• Work with Claude Code and other AI development tools every day to build quickly and to evaluate new models, APIs and frameworks as they arrive.
• Turn what you learn into a short, evidenced recommendation the product team can act on.

Make website agents self-serve

• Our web toolkit, built on the WebMCP standard, lets an agent see the site it sits on, navigate it and act on it for the visitor. Putting that agent on a customer's website today takes skilled hands. Investigate the current process, identify what to automate, build the tooling and prototypes, and work with engineering until an account manager can do it without you.
• Build the templates for the platforms our customers already use, starting with Shopify and the standard CMS platforms.

Be the technical partner to engineering, sales and partnerships

• Jump into customer and partner calls when a deal needs someone who knows how the product works; help scope and unblock integrations; build the demo.
• Investigate technical issues from the field and get them to the right place with a clear diagnosis.
• Help the product team test releases and run the internal rollout before a general release.

Evaluate before we decide

• Build and run the evaluation suites behind model and prompt decisions: new realtime models, the Cascade pipeline, context limits, conversational quality.
• Bring the numbers, and a recommendation, to the product team.

About you

• 4+ years as a product engineer, solutions engineer, forward-deployed engineer or hands-on technical product manager on a developer platform or API.
• You read and write code, and you are at home in the browser: JavaScript, the DOM, embedded scripts, iframes and the security rules that get in their way.
• You build with current AI development tools every day and have shipped something with them recently.
• You start before the requirements are finished, and you would rather show a working version than argue about a document.
• You have walked customers through integrations yourself, patiently, and you know when the second walkthrough should have been a tool instead.
• You write clearly, and you measure before you recommend.

Nice to have

• Experience with voice, avatar or conversational-agent platforms.
• MCP servers and tool-calling agents.
• Shopify, Webflow or other CMS ecosystems.
• Telephony (SIP) integrations.
• Familiarity with the Microsoft developer and partner ecosystem.

Benefits

• Paid Time-Off: We offer flexible vacation time with 10 company holidays.
• Health Plans: We offer robust medical, dental, and vision plans for you and your dependents. Disability, life insurance, and FSA benefits are also available
• Wellness: Access to Teladoc and an EAP
• Parental Leave: Paid leave
• Retirement Savings: Contribute pretax earnings to our 401(k) Plan

Our Culture

• Impact: Play a crucial role in our growth journey.
• Culture: Join a vibrant team valuing creativity and collaboration.
• Growth: Thrive in a fast-paced, dynamic environment.
• Reward: Enjoy competitive compensation, equity opportunities, and comprehensive benefits.

We’re looking for more forward-thinking, collaborative people to be part of our innovation journey and mission to push the boundaries of technology. If you’re ready to help us achieve this vision, we’d love to hear from you! At Napster Corp, we're looking for people who are invigorated by our values and driven to change the world, not those who simply check off boxes.

Napster Corp embraces a diversity of backgrounds and experiences and provides equal opportunity for all applicants and employees. We strive to build a company that reflects a global audience.

CCPA Notice for California Job Candidates: Please review our CCPA notice at

https://www.napster.ai/policy-docs/ccpa-notice-for-job-candidates