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CUJO AI® Tech Stack

AI-powered network security platform for ISP home routers and connected devices

Telecommunications Covina, California 201–500 employees Founded 2015 Privately Held

CUJO AI builds embedded security for ISP home routers and IoT devices, deployed across 3+ billion devices on operator networks. The tech stack is deeply embedded (Linux, OpenWrt, Yocto, C) layered over cloud infrastructure (AWS, PostgreSQL, DynamoDB, Kafka on MSK), reflecting their dual architecture: lightweight analysis at the edge and centralized threat detection in the cloud. Active hiring skews senior and security-focused, with ongoing work on porting software to router platforms and big-data threat detection—signals of platform hardening and scale challenges in defending large operator networks.

Tech Stack 42 technologies

Core StackLinux AWS Java Spring Hibernate Python PostgreSQL AWS RDS DynamoDB AWS Lambda CloudWatch Jenkins GitHub Actions Docker iproute2 Netfilter C OpenWrt Yocto Git Aurora AWS ECS AWS Elastic Load Balancing Route 53 AWS Systems Manager AWS ECR AWS MSK IAM VPC CI/CD+11 more
AdoptingTerraform AWS

What CUJO AI® Is Building

Challenges

  • Staying ahead of adversaries
  • Securing iot ecosystems
  • Protecting iot ecosystems
  • Operating large-scale systems with high data volumes
  • Debugging production systems under heavy loads
  • Building resiliency in distributed systems
  • Managing office operations across multiple countries
  • Ensuring compliance with health & safety regulations
  • Maintaining 24/7 service uptime

Active Projects

  • Proof-of-concept prototypes for detection
  • Porting software to linux-based router platforms
  • Ci/cd pipeline improvement
  • Advanced cybersecurity defense mechanisms
  • Big data analysis for threat detection
  • Test automation systems
  • Home security solutions for operator home routers
  • Embedded analysis solutions for isp home routers
  • Device identification and management backend systems
  • Ietf qoo framework deployment

Hiring Activity

Decelerating20 roles · 5 in 30d

Department

Engineering
9
Security
3
Marketing
2
Ops
2
Support
1

Seniority

Senior
11
Mid
3
Manager
2
Junior
1
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About CUJO AI®

CUJO AI provides cybersecurity and device intelligence for mobile and fixed network operators. The platform protects home networks through embedded software running on ISP-provided routers, combined with cloud-based threat intelligence and parental controls. Customers include major North American and European telecom carriers. The company serves both end-user protection (home network security, content blocking, privacy) and operator monetization (value-add services, network optimization). With production deployments at scale—3+ billion devices across global operator networks—the platform must handle distributed embedded systems, high-volume traffic analysis, and continuous adversarial pressure.

HeadquartersCovina, California
Company Size201–500 employees
Founded2015
Hiring MarketsLithuania, Norway, Hungary, United Kingdom, Finland

Frequently Asked Questions

What technology stack does CUJO AI use?

Embedded layer: Linux, OpenWrt, Yocto, C, Netfilter, iproute2. Cloud backend: AWS (RDS, Aurora, DynamoDB, Lambda, MSK, ECS), PostgreSQL, Java, Spring, Python. DevOps: Docker, Jenkins, GitHub Actions, Terraform.

How many devices does CUJO AI protect?

More than 3 billion devices across operator networks globally, as stated in company information.

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