Founding Engineer

Antler; San Francisco (CA); On-site; USD 200,000 - 250,000; Full time

Job summary

Moritz, an AI-native law firm backed by YC, is hiring a Founding Engineer in San Francisco. You will join as a hands-on leader responsible for product building, scaling the team, and shaping engineering processes from day one.

You will ship critical features, own delivery without compromising quality or security, and help grow the engineering organization as it scales with funding behind the venture.

Qualifications

• 3+ years of professional software engineering experience.
• Background in high-growth startups with product delivery focus.
• Experience shipping AI-powered features and platforms.

Responsibilities

• Ship architecture and core features, reviewing code for quality and security.
• Own delivery timelines while preserving reliability and security.
• Help hire, onboard, and scale the engineering team as it grows.
• Shape engineering cadence, reviews, and development standards.
• Build AI-first tooling, agents, evals, and guardrails to protect quality.

Skills

AWS

ML

Node.js

PostgreSQL

TypeScript

Docker

Terraform

LLMs

Job description

Moritz

Global AI-native law firm handling legal work with same-day turnaround

Founding Engineer

Salary: $200K - $250K, Equity: 0.30% - 1.00%, Location: San Francisco, CA, US

Job type Full-time

Role Engineering, Full stack

Experience 3+ years

Visa US citizen/visa only

Skills Amazon Web Services (AWS), ML, Node.js, PostgreSQL, TypeScript, Docker, Terraform, LLMs

Connect directly with founders of the best YC-funded startups.

Pamir Ehsas, Founder & CEO

About the role

Founding Engineer

Moritz is an AI-native law firm, YC-backed and seed-funded. We pair elite legal counsel with state-of-the-art technology to deliver work faster and more reliably than lawyers or software could alone. Most legal tech sells tools to law firms; we're building the firm around the technology instead. Lawyers and engineers sit on the same team, working the same problems.

You'll join as a Founding Engineer with broad responsibility across building product, helping scale the team, and shaping engineering processes. The role is intended to carry leadership responsibility from the start, while remaining hands-on technically.

What you'll do

• Ship. Architecture, code review, and the hardest features - this is the bulk of the job.
• Own delivery without trading away quality, stability, or security.
• Help hire, onboard, and grow the engineering team as it scales.
• Shape how engineering runs: planning cadence, review, standards.
• Make AI-first development work - coding agents, evals, and the guardrails that keep speed from costing quality or security.

Who we're looking for

Someone from a high-growth startup who's helped scale a product and a team through a period of real growth, and wants to do it again with funding behind them. You ship with AI as a core part of how you work, and you've hired and grown engineers before.

About Moritz

Arcline is building the defining AI-native firm in a $1T+ legal services industry. We sit at the intersection of law and technology - reimagining how legal work is delivered through software, systems, and structured expertise.

We're a fast-moving, high-ownership team backed by Y Combinator, working directly with customers to transform complex legal workflows into scalable, repeatable processes.