Full-Time

Senior AI Engineer

Posted on 10/31/2025

Cortex

Cortex

51-200 employees

Internal developer portal for engineering automation

Compensation Overview

$200k - $250k/yr

+ Equity

Remote in USA

Remote

Category
AI & Machine Learning (2)
,
Requirements
  • Bachelor's degree in Computer Science or related field, or equivalent work experience
  • 5+ years of product-focused engineering experience
  • Proven experience building and shipping LLM applications or AI-powered products
  • Experience with modern AI tools (e.g., OpenAI, Anthropic, Hugging Face, LangChain, RAG, vector DBs, etc.)
  • Familiarity with production-grade AI patterns (e.g. fine-tuning models, model evaluations, observability etc.)
  • Side projects and personal experimentation with AI models or tools are a must.
Responsibilities
  • Build production-ready AI applications and LLM-powered features on top of our product
  • Collaborate closely with our AI + Data team to help build agentic capabilities for our IDP
  • Work with customers to understand their AI needs and build developer experiences powered by LLMs.
  • Experiment and evaluate open-source models to prototype new use cases and translate learnings into production systems

Cortex is an internal developer portal that helps software teams work more efficiently and with higher quality. It provides automatic cataloging of components, continuous assessment of code quality and compliance, and reliable software deployment workflows. The platform integrates into development pipelines, centralizes documentation and metrics, and supports teams at companies like Docker, TripAdvisor, and Confluent through a subscription-based model. Cortex differs from many competitors by focusing on an integrated portal that automates cataloging and ongoing quality checks within the software delivery process, rather than only offering individual tools. Its goal is to help organizations maintain high engineering standards, reduce time-to-market, and lower operational costs.

Company Size

51-200

Company Stage

Series C

Total Funding

$112.8M

Headquarters

San Francisco, California

Founded

2019

Simplify Jobs

Simplify's Take

What believers are saying

  • $60M Series C from Scale Venture Partners validates market demand.
  • Lamar Advertising adopts Cortex for US DOOH network expansion.
  • Serves Docker, TripAdvisor, Confluent, and Canva for broad adoption.

What critics are saying

  • Port.io open-source portal undercuts subscription model immediately.
  • Spotify Backstage dominates with 20k GitHub stars, drives churn.
  • Humanitec AI auto-remediation replaces Cortex assessment in 6 months.

What makes Cortex unique

  • Cortex automates service cataloging and scorecards for standards alignment.
  • Reliability as Code provides microservices visibility for SRE teams.
  • AI-powered workflows enforce ownership and automate developer actions.

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Benefits

Competitive pay & equity

Unlimited PTO

Cortex Wallet

Comprehensive health coverage

Retirement plans

Gender neutral parental leave

Weekly virtual team bonding experiences

Quarterly team retreats

Professional & career development

Growth & Insights and Company News

Headcount

6 month growth

-6%

1 year growth

-3%

2 year growth

0%
Business Wire
Mar 23rd, 2026
Cortex Secures $2.5M in Funding from Sequoia -- New Reliability as Code Platform Provides Comprehensive Microservices Visibility and Control for Engineering and SRE Teams

Reliability as Code pioneer Cortex today announced that it has secured $2.5 million in seed funding led by Sequoia Capital. The new funds will accelerate dev...

Today's Medical Developments
Nov 17th, 2024
Boston Scientific to Acquire Cortex

Boston Scientific to acquire Cortex.

Startup Rise USA
Sep 7th, 2024
Funding Wrap of the Week | American Startups Funding Roundup | September 2 - September 6

CA-based Cortex, the Internal Developer Portal eliminating "developer tax" with paved paths to production has raised $60 million in series C funding round, led by Scale Venture Partners, with participation from World Innovation Labs, Cross Creek, Alpha Square Group, Patrick and John Collison (Stripe) IVP, Sequoia, and Y Combinator.

Cortex
Sep 6th, 2024
Our Series C - $60M in New Funding | Cortex

Cortex is proud to announce $60M in new funding to continue building the future of developer experience.

Bloomberg L.P.
Sep 4th, 2024
Sequoia Backs Developer Startup Cortex at $470 Million Valuation

Stripe co-founders John and Patrick Collison also joined in the $60 million funding round.

INACTIVE