Senior Software Engineer

About the role

Own a major product surface on one of our three teams and write the code for the parts that can’t be wrong. Set the technical bar through your own PRs, not process documents. Optionally lead a pod of one to three engineers: daily code review, weekly 1:1s, and growth accountability, capped so your IC output stays primary. Own and raise the evaluation bar for your surface; the harness is shared, the standard is yours. Work directly with the founders on roadmap; there is no PM layer between you and the business.

Responsibilities

• Design, ship, and operate production software, including systems you owned end to end.
• Write code for critical components of the product.
• Lead technical discussions and make architectural decisions that impact the product’s long-term direction.
• Collaborate with the team to ensure the quality and correctness of the product.
• Work closely with the founders to shape the product roadmap.

Requirements

• 5+ years designing, shipping, and operating production software, including systems you owned end to end.
• Strong proficiency in a typed language. We work in TypeScript; deep experience elsewhere with real interest in switching counts.
• A track record of leading technical work: architecture that shipped, systems that lasted, engineers who got better because you were there.
• High ownership: comfortable with ambiguity, able to define the problem and the plan rather than execute a predefined spec.
• You care about correctness beyond what most product engineering demands. Our output is reviewed by tax professionals and filed with the IRS.
• Clear, precise communication on technical topics, in writing and in person.
• Able to work in person at our New York City office.

Qualifications

• Experience building or operating LLM-powered systems in production: agents, evaluation harnesses, structured extraction, or prompt and skill infrastructure.
• Experience building platforms or internal tools where other engineers were your customers, and judgment about when to build a primitive versus ship a one-off.
• Depth in AWS or comparable cloud infrastructure, especially workflow orchestration, queueing, and relational data at scale.
• Compliance-aware system design: audit trails, data lineage, tenant isolation, or work in regulated domains.
• A track record of mentoring engineers through code review and technical direction, and of aligning people without direct authority.

Skills

• Strong proficiency in a typed language (TypeScript preferred).
• Experience with AWS or similar cloud infrastructure.
• Experience with compliance-aware system design.
• Experience with LLM-powered systems in production.
• Experience with platform or internal tools where other engineers were your customers.
• Experience with compliance-aware system design.
• Experience with mentoring engineers through code review and technical direction.

Benefits

Our benefits include health, dental, and vision coverage and unlimited PTO.

Pay

The annual base salary for this role is $225,000, with a total equity grant valued at $100,000. Equity is ISOs valued at our Series B preferred price, on a standard four-year vest with a one-year cliff and early exercise available.

Schedule

We are a remote-first company, but we have a New York City office where you can come in for in-person meetings and events.