Job Title: Staff Software Engineer (Backend)

Company Name: The Cohort AI

Job Url: https://builtin.com/job/staff-software-engineer-backend/9002895

Job Description: 
the cohort ai
Staff Software Engineer (Backend)
Job Posted 6 Hours Ago Posted 6 Hours Ago
Hiring Remotely in California, USA
Remote
Expert/Leader
Information Technology • Software • App development
The Role
As a Staff Software Engineer, you will enhance Java backend services, optimize in-memory databases, mentor engineers, and collaborate cross-functionally on healthcare data systems.
Summary Generated by Built In
Staff Software Engineer – Java (Backend) - Remote first company.

About the Role
We're looking for a Staff Software Engineer to join our backend engineering team and contribute to the continued growth and enhancement of our healthcare data platform. You'll work deep in the stack, writing high-performance Java server code, extending our custom domain-specific languages, and helping scale our proprietary in-memory database engine. This is a hands-on technical role for someone who thrives on solving hard infrastructure and data problems within an established, mature product.

What You'll Do

Extend and enhance high-performance, scalable Java backend services that form the foundation of our platform
Contribute to and support our custom domain-specific languages (DSLs) used to express complex healthcare data rules, transformations, and queries
Help scale and optimize our specialized in-memory database server, including work on clustering, replication, and fault tolerance
Work within and refine robust object models that accurately represent complex healthcare data domains
Build and improve large-scale data loading pipelines that ingest, validate, and normalize healthcare datasets reliably and efficiently
Mentor engineers on system design, performance tuning, and code quality
Collaborate cross-functionally with product, data engineering, and infrastructure teams to support platform goals
Identify and recommend improvements to existing systems, tools, and patterns
What We're Looking For

10+ years of professional software engineering experience with deep expertise in Java and server-side development
Proven experience working within distributed backend systems such as caching, clustering, high availability, and horizontal scalability firsthand
Experience building, extending, or maintaining custom DSLs, compilers, interpreters, or rule engines
Strong background in in-memory data structures, caching architectures, or custom database internals
Solid understanding of object-oriented modeling and domain-driven design, particularly in complex or regulated data environments
Hands-on experience with large-scale data loading such as batch processing, ETL pipelines, streaming ingestion, or similar
Nice to Have

Experience with JVM performance tuning, garbage collection optimization, or off-heap memory management
Background in distributed computing
Experience with healthcare data interoperability standards and terminology systems (SNOMED, ICD-10, CPT, RxNorm)
Exposure to health research data standards such as Observational Medical Outcomes Partnership (OMOP) Common Data Model (CDM)
-----Before we move forward, could you please confirm that you are comfortable with this tech stack? Also, could you please send over your updated resume to venu.baswaraj@thecohort.ai


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Top Skills
Caching
Clustering
Custom Domain-Specific Languages
Etl Pipelines
High Availability
In-Memory Database
Java