Co-Founder & CTO (gn) @ Agentic AI Cybersecurity Platform, Berlin

This is an Atlantic Venture. Find out more about us and other ventures in our portfolio here.

About the Venture
We are building a next-generation Identity + AI Cybersecurity platform designed to secure how modern SaaS systems, users, and AI agents interact. Our platform combines identity modelling, real-time policy enforcement, and AI-driven risk analysis to help enterprises manage access, trust, and security in an increasingly agent-driven world.

Having just secured pre-seed funding, we are now moving into build mode. You will join a technical CEO and early founding team in Berlin to architect, design, and ship the core platform from day one. 

About the Role
We are looking for a deeply technical Founding CTO (or even a Founding Engineer) who will take full ownership of the platform architecture and build the first version of the product. This is a hands-on role where you will spend meaningful time writing production code while defining the long-term direction for engineering, security, infrastructure, and team growth.

Responsibilities include:

• Own the full technical architecture across identity, AI agent systems, and enforcement

• Design and implement identity models, permission graphs, token lifecycle, and SaaS risk flows

• Build the agent identity model, sandboxing framework, trust scoring, and behavior engine

• Write production-grade backend code (4–6 hours/day in the early stage)

• Lead engineering execution across roadmap planning, sprints, and delivery

• Build core services including connectors, policy engine, risk engine, and real-time enforcement

• Partner with the CEO on system design, product direction, and technical strategy

• Support enterprise customers with technical deep dives, PoCs, and security validation

• Maintain high standards of security, reliability, and architecture

• Define and establish the long-term technology strategy and data infrastructure

• Hire, lead, and scale an in-house engineering team

• Manage data privacy, secure storage, and analysis frameworks

• Contribute directly to building Europe’s most advanced cybersecurity platform
  
  

About You
We are looking for someone highly technical, hands-on, and motivated by building complex distributed systems at the earliest stage. You might be a Founding Engineer, you might be a CTO - what matters is the work that you do here.

Requirements:

• Significant experience in backend engineering and system architecture

• Ideally, exposure in technical leadership roles

• Experience shipping complex distributed systems

• Deep understanding of OAuth/OIDC, identity flows, API keys, tokens, scopes

• Knowledge of RBAC/ABAC or fine-grained access systems

• Familiarity with Zero Trust principles and integration security

• Experience with AI/LLM systems or ability to learn fast

• Strong security mindset and understanding of modern attack surfaces

• Experience integrating with SaaS APIs

• Ability to move fast and operate independently

• Experience with Terraform and cloud deployments

• Prior startup experience and strong founder mentality
  
  

Nice to have:

• Experience with agent orchestration or sandboxing

• Experience with event-driven or streaming systems (Kafka, Pub/Sub)

• Knowledge of policy engines

• Experience with token analysis or credential hygiene

• Familiarity with cloud IAM (AWS/GCP/Azure)

• Experience with risk scoring or anomaly detection

• Understanding of graph databases or unified identity graphs

• Prior cybersecurity or identity experience

• Product leadership or prior founder experience
  
  

Why should you join us?
This is a true founding opportunity where your architecture, code, and decisions define the entire platform. We have secured funding, operate in a fast-growing cybersecurity market, and move quickly with a technical CEO. More specifically:

• Co-founder equity with meaningful upside

• Full technical ownership

• Founding team influence and responsibility

• Fast-paced environment with customer exposure and PoCs

• Cutting-edge work across identity, SaaS security, and AI agent governance

• Strong learning curve and growth potential

• Berlin location with hybrid flexibility

• Direct impact on building Europe’s leading cyber platform