Platform Engineer

📋 Job Overview

Hyperbound is the Revenue Activation Platform, the agentic operating system for sales. We don't just record what happens on a call, we change what happens next, turning real selling behavior into targeted roleplays, coaching, and workflow changes that make reps better without adding a single layer of management overhead. We started in 2023 out of YC (S23) and are based in San Francisco. Last quarter we doubled headcount, grew revenue almost 2x, and posted 300% net revenue retention. We've raised $18M total, including a $15M Series A led by Peak XV Partners, alongside YC, Snowflake Ventures, Roble Ventures, and Fellows Fund. LinkedIn, Workday, IBM, and Intel all run their sales teams through Hyperbound. We're SOC 2 Type II certified, support 25+ languages, and help sales teams ramp new reps 50% faster.

🏢 About Hyperbound

Hyperbound is the Revenue Activation Platform, the agentic operating system for sales. We started in 2023 out of YC (S23) and are based in San Francisco. Last quarter we doubled headcount, grew revenue almost 2x, and posted 300% net revenue retention. We've raised $18M total, including a $15M Series A led by Peak XV Partners, alongside YC, Snowflake Ventures, Roble Ventures, and Fellows Fund. LinkedIn, Workday, IBM, and Intel all run their sales teams through Hyperbound. We're SOC 2 Type II certified, support 25+ languages, and help sales teams ramp new reps 50% faster.

🎯 The Role

You'll be the architect for two things that have to work perfectly at the same time: our public APIs and the integrations that connect Hyperbound to the tools our customers already live in. On the API side, you own design, versioning, and long-term maintainability end to end. Every internal team and every external developer building against us is building against decisions you made. On the integrations side, you're solving the genuinely hard problems: data consistency across systems that were never designed to talk to each other, rate limits that kick in at the worst possible moment, synchronization that has to hold up when a customer's CRM has a bad day. You'll work directly with the founding team to decide what gets built next and which partnerships actually move the business, not in a quarterly planning doc, in the room.

✅ Key Responsibilities

• Own our public APIs and the integrations that connect Hyperbound to every CRM, dialer, and comms tool our customers already live in.
• Decide how the OAuth flow should behave when a customer's identity provider does something undocumented.
• Fix things that break, such as rate limits getting hit at 2am before a big demo or webhooks quietly stopping firing.
• Design, version, and maintain our public APIs end to end.
• Solve hard problems like data consistency across systems, rate limits, and synchronization.

📌 Required Qualifications

• Deep experience with API design patterns, versioning, and building for the long haul.
• Real fluency in OAuth 2.0, OpenID Connect, and the rest of what it takes to secure data moving between systems you don't control.
• Time spent in the weeds of other companies' APIs, enough to know that every SaaS platform lies to you a little differently.
• A track record of owning something end to end somewhere that moved fast and didn't have a lot of guardrails.

⭐ Desirable Experience

• Been at a startup before, maybe even started one.
• Run production systems on AWS with real CI/CD.
• Shipped something you're still a little proud of talking about.

🎁 Benefits

• Salary: $200,000 to $220,000, based on experience.
• Equity: .15%-.3% Series A
• Health: Medical, dental, and vision coverage
• PTO: Unlimited
• Office: In-office in San Francisco 5 days a week, with daily lunches, plus commuter and parking benefits

🛂 Visa & Eligibility

Hyperbound is an equal opportunity employer. We welcome applicants of all backgrounds, identities, and experiences. We do not discriminate on the basis of race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. If you need accommodations during the interview process, let us know and we'll make it work.