C R O S B Y
Welcome to Crosby, the next-generation law company!
We're a team of technologists and legal experts collaborating closely to reimagine corporate legal services from the ground up. We build proprietary technology and human-in-the-loop workflows to radically enhance the lawyer-machine relationship. Our mission is to review complex documents faster than ever and with perfect quality.
Crosby was founded by Ryan (Penn, Stanford Law, ex-Cooley, former GC) and John (Penn M&T, ex-Ramp, ex-Google).
We believe: A great legal system is the watermark of a great society. Legal work is art and science. We are discovering the frontier between the two- codifying what can be systematized, and amplifying human expertise where judgment matters most. The right way to deploy AI in law isn't by selling software. It's by selling outcomes - higher-quality legal work, delivered faster and more efficiently In an in-person culture at our NYC office. The Role
As a Founding Data Platform Engineer, you will build and own the technical backbone that powers Crosby's entire AI-driven platform. Your mission is to design, build, and scale the data infrastructure responsible for ingesting, processing, and storing vast amounts of complex legal documents. You will create the reliable, high-performance systems that our machine learning models and application engineers depend on to transform the legal industry. This is a foundational role with a massive impact on our ability to scale.
What You'll Do Build the core pipeline:
Design and build scalable data ingestion and processing pipelines for unstructured documents (PDFs, DOCX) using tools like
Python
and
Prefect . Own the storage layer:
Manage our core data storage layer, including
PostgreSQL
with
pgvector
for hybrid search and
Redis
for high-speed caching. Power AI Workloads:
Develop and maintain our serverless compute and ML workloads using infrastructure like
Modal
and
AWS . Codify Infrastructure:
Implement and manage robust, version-controlled infrastructure using Infrastructure as Code ( Pulumi ). Fuel Product Velocity:
Partner closely with ML and application engineers to build the APIs and data models they need to launch new, AI-powered features. Raise the bar:
Define best practices for data quality, observability, and reliability across the entire platform. What We're Looking For Experience:
3+ years of experience in data engineering, platform engineering, or a related backend role. Strong Programming Skills:
Deep proficiency in
Python
and a strong command of
SQL . Cloud Infrastructure:
Hands-on experience building and managing infrastructure on
AWS
(e.g., RDS, ECS, S3). Builder Mindset:
You are excited about the opportunity to build data systems from the ground up and make foundational architectural decisions. Data Modeling:
A strong understanding of how to model data for both analytical and operational use cases. Ownership:
You are driven to take full responsibility for the reliability and performance of the systems you build. Ideal Qualifications Direct experience with workflow orchestration tools like
Prefect
or Airflow. Experience with Infrastructure as Code tools like
Pulumi
or Terraform. Familiarity with vector databases and search technologies ( pgvector , Pinecone, etc.). Experience in a fast-paced, early-stage startup environment. Knowledge of serverless compute platforms like
Modal
or AWS Lambda. Ideal Qualifications Direct experience with workflow orchestration tools like
Prefect
or Airflow. Experience with Infrastructure as Code tools like
Pulumi
or Terraform. Familiarity with vector databases and search technologies ( pgvector , Pinecone, etc.). Experience in a fast-paced, early-stage startup environment. Knowledge of serverless compute platforms like
Modal
or AWS Lambda. Why Work at Crosby Foundational Impact:
As a founding engineer, you will shape the data platform, culture, and technical direction of the entire company. Competitive salary and equity compensation. Comprehensive health, dental, and vision insurance. Unlimited PTO. In-person team in NYC with a collaborative, high-energy environment.
Apply now to join Crosby and be part of transforming the legal landscape.
We're a team of technologists and legal experts collaborating closely to reimagine corporate legal services from the ground up. We build proprietary technology and human-in-the-loop workflows to radically enhance the lawyer-machine relationship. Our mission is to review complex documents faster than ever and with perfect quality.
Crosby was founded by Ryan (Penn, Stanford Law, ex-Cooley, former GC) and John (Penn M&T, ex-Ramp, ex-Google).
We believe: A great legal system is the watermark of a great society. Legal work is art and science. We are discovering the frontier between the two- codifying what can be systematized, and amplifying human expertise where judgment matters most. The right way to deploy AI in law isn't by selling software. It's by selling outcomes - higher-quality legal work, delivered faster and more efficiently In an in-person culture at our NYC office. The Role
As a Founding Data Platform Engineer, you will build and own the technical backbone that powers Crosby's entire AI-driven platform. Your mission is to design, build, and scale the data infrastructure responsible for ingesting, processing, and storing vast amounts of complex legal documents. You will create the reliable, high-performance systems that our machine learning models and application engineers depend on to transform the legal industry. This is a foundational role with a massive impact on our ability to scale.
What You'll Do Build the core pipeline:
Design and build scalable data ingestion and processing pipelines for unstructured documents (PDFs, DOCX) using tools like
Python
and
Prefect . Own the storage layer:
Manage our core data storage layer, including
PostgreSQL
with
pgvector
for hybrid search and
Redis
for high-speed caching. Power AI Workloads:
Develop and maintain our serverless compute and ML workloads using infrastructure like
Modal
and
AWS . Codify Infrastructure:
Implement and manage robust, version-controlled infrastructure using Infrastructure as Code ( Pulumi ). Fuel Product Velocity:
Partner closely with ML and application engineers to build the APIs and data models they need to launch new, AI-powered features. Raise the bar:
Define best practices for data quality, observability, and reliability across the entire platform. What We're Looking For Experience:
3+ years of experience in data engineering, platform engineering, or a related backend role. Strong Programming Skills:
Deep proficiency in
Python
and a strong command of
SQL . Cloud Infrastructure:
Hands-on experience building and managing infrastructure on
AWS
(e.g., RDS, ECS, S3). Builder Mindset:
You are excited about the opportunity to build data systems from the ground up and make foundational architectural decisions. Data Modeling:
A strong understanding of how to model data for both analytical and operational use cases. Ownership:
You are driven to take full responsibility for the reliability and performance of the systems you build. Ideal Qualifications Direct experience with workflow orchestration tools like
Prefect
or Airflow. Experience with Infrastructure as Code tools like
Pulumi
or Terraform. Familiarity with vector databases and search technologies ( pgvector , Pinecone, etc.). Experience in a fast-paced, early-stage startup environment. Knowledge of serverless compute platforms like
Modal
or AWS Lambda. Ideal Qualifications Direct experience with workflow orchestration tools like
Prefect
or Airflow. Experience with Infrastructure as Code tools like
Pulumi
or Terraform. Familiarity with vector databases and search technologies ( pgvector , Pinecone, etc.). Experience in a fast-paced, early-stage startup environment. Knowledge of serverless compute platforms like
Modal
or AWS Lambda. Why Work at Crosby Foundational Impact:
As a founding engineer, you will shape the data platform, culture, and technical direction of the entire company. Competitive salary and equity compensation. Comprehensive health, dental, and vision insurance. Unlimited PTO. In-person team in NYC with a collaborative, high-energy environment.
Apply now to join Crosby and be part of transforming the legal landscape.