Principal Architect - Intelligence & Shared Signals

Ditto; United Kingdom; Remote; GBP 120,000 - 190,000; Full time

Job summary

Ditto is a fast-growing B2B SaaS company redefining how regulated industries establish digital trust. Our privacy-first identity platform, built on Zero-Knowledge Proof technology, powers secure and compliant customer interactions across banking, fintech, crypto, travel, and gaming.

We are looking for a Principal Architect to lead the design of Ditto’s Intelligence & Shared Signals platform — the continuous trust layer powering adaptive identity assurance, behavioural intelligence, federated

Qualifications

• 10+ years in security, identity, fraud, risk, or trust architecture.
• Experience with real-time event-driven and streaming systems.
• Strong data-engineering and feature-engineering expertise.
• Experience building adaptive trust or signal-fusion platforms.
• Practical experience integrating AI/LLM systems into production environments.

Responsibilities

• Lead the architecture behind Ditto’s Intelligence & Shared Signals platform.
• Design continuous trust decisioning, shared signals, and streaming pipelines.
• Guide behavioural intelligence systems and Identity Assurance Graphs.
• Collaborate across Ditto Verify, Authenticate, and Protect teams.
• Communicate complex concepts clearly to cross-functional stakeholders.

Skills

Security & identity architecture

Real-time streaming

Data engineering

Adaptive trust / signal fusion

AI/LLM integration

English communication

Education

Bachelor's degree in CS/Engineering

Tools

Kafka/Pulsar

OPA/Rego

CAEP/RISC

Zero Trust

Job description

Ready to help define the future of continuous trust?

Ditto is a fast-growing B2B SaaS company redefining how regulated industries establish digital trust. Our privacy-first identity platform, built on Zero-Knowledge Proof technology, powers secure and compliant customer interactions across banking, fintech, crypto, travel, and gaming.

Trusted by organisations including Temenos, LTIMindtree, and Infosys Finacle, we are scaling globally from our Barcelona headquarters and building the next generation of AI-native trust infrastructure.

We are looking for a Principal Architect to lead the design of Ditto’s Intelligence & Shared Signals platform — the continuous trust layer powering adaptive identity assurance, behavioural intelligence, federated risk decisioning, and AI-agent trust.

This is a rare opportunity to architect foundational platform technology at the intersection of identity, security, AI, behavioural intelligence, and post-quantum cryptography.

You will lead the architecture behind:

• continuous trust decisioning
• shared signals and federation (CAEP/RISC/SET)
• streaming pipelines and feature stores
• behavioural intelligence systems
• Identity Assurance Graphs
• AI-agent and workload identity evaluation

You’ll work across Ditto Verify, Authenticate, and Protect, combining identity, authentication, behavioural telemetry, device intelligence, and cryptographic assurance into a unified trust platform.

We’re looking for someone with:

• 10+ years in security, identity, fraud, risk, or trust architecture
• deep experience with real-time event-driven and streaming systems
• strong data-engineering and feature-engineering expertise
• experience building adaptive trust, behavioural intelligence, or signal-fusion platforms
• practical experience integrating AI/LLM systems into production environments
• excellent written and verbal communication skills in English

Experience with Kafka/Pulsar, CAEP, RISC, feature stores, OPA/Rego, Zero Trust, post-quantum cryptography, SIEM/XDR architectures, or mobile threat defence is highly valued. Spanish is a plus.

Recruitment Process

• Introductory conversation with Talent
• CTO & CPO conversations
• Collaborative 90-minute architecture working session
• Final meeting with Ditto leadership

If you want to build category-defining infrastructure shaping the future of digital trust, we’d love to hear from you.