Who We're Looking For Supio's competitive advantage isn't just our UI – it's the set of powerful AI "engines" we've built: drafting, structured extraction, timelines, economics, and more. Our next phase of growth depends on exposing these capabilities through partner APIs, so distribution isn't limited to a single Supio interface.

As API Architect, you'll own the design and governance of Supio's external API surface – the "contract with the world." You'll architect how internal capabilities become consumable API products. This is a strategic, cross-cutting role.

A Bit About You

• You've designed and shipped developer-facing APIs at scale—not just consumed them.
• You have strong opinions on REST design, versioning, developer experience, and API governance.
• You think in terms of "API as product"—you understand that external APIs are a business surface, not just technical plumbing.
• You can navigate the politics of internal vs. external contracts and partner effectively with core engineering teams.
• You're comfortable being an authority and saying "no" to designs that compromise the external contract.

What You'll Do

• Own the design, standards, and governance of Supio's external API surface (endpoints, objects, semantics, error handling, pagination).
• Architect "capabilities as APIs"—define how internal product engines get exposed as consumable API products for partners.
• Define and enforce API standards: naming conventions, authentication patterns, rate limiting, versioning, and deprecation policies.
• Partner with Core Engineering to establish clean boundaries between internal services and external contracts.

Qualifications

• 10+ years of software engineering experience, with significant time designing developer-facing APIs.
• Proven experience owning API platforms at scale—you've defined standards, not just followed them.
• Deep expertise in REST API design, including versioning strategies, error handling, and backward compatibility.
• Experience with API security: OAuth, API keys, rate limiting, abuse prevention.
• Strong communication skills; you can articulate design decisions to both engineers and business stakeholders.
• Experience working cross-functionally to define internal/external boundaries with platform or core teams.

Nice-to-Haves

• Experience building "API as product" offerings in B2B SaaS contexts.
• Background in developer experience: SDKs, documentation, sandbox environments.
• Familiarity with API gateway technologies and infrastructure.
• Experience with GraphQL or event-driven APIs (webhooks, streaming).
• Prior experience in legal technology, fintech, or other regulated industries.

Compensation As an early-stage startup, we offer a competitive compensation package that includes base salary, meaningful equity, and benefits . Equity grants are designed to ensure employees share in the long-term success and upside of the company.

Base Salary : $225,000 - $250,000 annually

Actual compensation may vary outside of these ranges based on a number of factors, including a candidate’s qualifications, skills, competencies, experience, and geographic location.