Systems Architect

Plasma AI; New York (NY); On-site; USD 180,000 - 260,000; Full time

Job summary

Plasma seeks a founding-level systems architect to lead the platform design under the CTO. You will decide how agents are created, coordinated, governed, and recorded, and how these pieces fit together as Plasma grows.

You will blend research and product work, turning system designs into a platform customers rely on. The role combines leadership, hands-on coding, and technical writing for scalable, secure architecture.

Qualifications

• Must have track record as technical lead on large production systems.
• Deep knowledge of distributed systems, data, and security.
• Experience with enterprise integration: SSO, permissions, data residency.
• Clear technical writing能力.
• Judgment on build vs buy and simplicity.

Responsibilities

• Define Plasma's platform components and interfaces for agents, communication and governance.
• Lead design reviews and document decision rationales.
• Design integrations with customer systems and identity providers.
• Identify scaling limits and plan platform evolution.
• Write and review production code for designed components.

Job description

We're looking for a founding-level systems architect to lead the design of Plasma's platform as a whole, reporting to our CTO. You'll decide how agents are created, coordinated, governed, and recorded, and how those pieces fit together as Plasma grows.

You've been the technical lead on a large production system and still function as an individual contributor. The role is both research and product: you'll work out how systems of agents should be structured, and turn those designs into the platform customers run on.

What You'll Work On

• Architecture: Define the parts of Plasma's platform and the interfaces between them: how agents run, communicate, share knowledge, and stay within their limits
• Design Review: Lead design reviews and write the documents that record why each decision was made
• Enterprise Integration: Design how Plasma integrates with customers' systems, including their identity providers and data rules
• Scaling: Find the limits of the current design before customers do, and plan the changes
• Building: Write and review production code for the parts of the platform you design

What We're Looking For

• A track record as the technical lead on large production systems that other teams built on
• Depth across distributed systems, data systems, and security
• Experience with enterprise integration: SSO, permissions, data residency
• Clear technical writing
• Exceptional judgment about when to build, when to buy, and when to keep it simple