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Sthenos AI Tech Stack

AI for defense command & control systems and dual-use applications

Defense and Space Manufacturing Athens 11–50 employees Founded 2025 Privately Held

Sthenos AI builds AI capabilities for next-generation command & control systems across defense and dual-use sectors. The stack—Python, PyTorch, Keras, Apache Spark, YOLO, Faster R-CNN, DETR—reflects a computer-vision and ML-ops focus typical of perception-heavy defense workloads. Active projects span ML-ops infrastructure, dataset preparation, and productization, while pain points (high inference latency, offline connectivity, alert fatigue) signal grappling with real-time operational constraints. Senior-weighted hiring across engineering and data suggests scaling internal AI development.

Tech Stack 30 technologies

Core StackPython Pandas NumPy PyTorch Apache Spark AWS Dynamics 365 Adobe Photoshop TypeScript React GraphQL gRPC Asana Jira Kubernetes Keras Ray Parquet Avro JSON CSV Azure GCP Microsoft Office Replit REST YOLO Faster R-CNN DETR Notion

What Sthenos AI Is Building

◆Challenges

Reducing friction across ai projects
Increasing scalability across ai projects
Ensuring compliance with legal requirements
Productizing internal ai solutions
Reducing client-specific logic
Reducing reliance on external creative agencies
High latency in ai inference
Offline connectivity for field operations
Alert fatigue
Disruptive ui patterns

▲Active Projects

End-to-end ml solution development
Ml-ops target operating model
Market screening and testing of data science solutions
End-to-end data preparation for ai projects
Dataset ready pack creation
Data source acquisition and tooling evaluation
Productization of ai solutions
Go-to-market enablement
Product video development
Ai-powered creative development

Hiring Activity

Accelerating10 roles · 8 in 30d

Department

Engineering

3

Data

2

Product

2

Design

1

Finance

1

Marketing

1

Ops

1

Seniority

Senior

7

Mid

3

Principal

1

Notable leadership hires: Head of Operations

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About Sthenos AI

Sthenos AI is a defense technology company developing AI solutions for command & control systems and operational decision support. Founded in 2025, the company operates as part of EFA GROUP, a European aerospace and defense holding, which positions it to integrate AI across existing defense and security platforms. The product focus spans AI-powered decision-making, operational efficiency, and strategic capability in naval, air, and land domains, with complementary investment in quantum computing. The team is currently scaling engineering and data functions with senior-level hires, based in Athens, Greece.

HeadquartersAthens

Company Size11–50 employees

Founded2025

Hiring MarketsGreece

Frequently Asked Questions

What is Sthenos AI's tech stack?

Python, PyTorch, Keras, NumPy, Pandas, Apache Spark, Ray, AWS, Azure, GCP, YOLO, Faster R-CNN, DETR, React, GraphQL, Kubernetes, and Jira.

What operational challenges is Sthenos AI addressing?

High inference latency in AI models, offline connectivity for field operations, alert fatigue in decision systems, and friction in scaling AI solutions across multiple internal projects.