I build secure Bitcoin custody infrastructure using confidential computing and threshold cryptography.

My background in Site Reliability Engineering gives me a strong foundation for designing production-grade systems that prioritize security, verifiability, and resilience. Now I'm specializing in the intersection of Bitcoin security, Trusted Execution Environments (TEEs), and threshold signatures.

• 🧰 Current Role: Senior SRE at Bitnob — Building Bitcoin & Lightning infrastructure for Africa
• 🔐 Specialization: Bitcoin custody security, threshold signatures (FROST, MuSig2), confidential computing (AWS Nitro Enclaves)
• 🧱 Background: Infrastructure security, Kubernetes, cloud architecture
• 🌍 Location: Lagos, Nigeria → Moving to Kigali, Rwanda (2026)
• 🎯 2026 Goal: Transition into Bitcoin infrastructure security engineering, specializing in TEE-based custody and threshold cryptography

I'm focused on making Bitcoin custody infrastructure secure, auditable, and resilient through the application of confidential computing and advanced cryptographic protocols.

Core Focus:

• 🔐 Bitcoin Custody Security: Multi-signature coordination, threshold signatures, hardware-backed key management
• 🧩 Confidential Computing: AWS Nitro Enclaves, remote attestation, secure multi-party computation
• 🔑 Threshold Cryptography: FROST, MuSig2, distributed key generation (DKG)
• 🛡️ Infrastructure Security: Supply chain hardening, secure build systems, attestation protocols
• 🏗️ Production Systems: Kubernetes, Terraform, observability, high-availability architecture

Technical Stack:

• Languages: Rust, Go, Python, Bash
• Bitcoin/Lightning: Bitcoin Core, LND, rust-bitcoin, Bitcoin Dev Kit (BDK)
• Cryptography: secp256k1, FROST, Schnorr signatures, PSBTs
• TEEs: AWS Nitro Enclaves, attestation documents, secure enclaves
• Infrastructure: Kubernetes, Terraform, Helm, ArgoCD
• Observability: Prometheus, Grafana, OpenTelemetry

Building a production-grade multi-signature coordinator that uses AWS Nitro Enclaves for hardware-backed key protection:

• FROST threshold signatures (3-of-5, 5-of-7 configurations)
• Remote attestation for signing operations
• PSBT workflow with TEE-backed signing
• Audit logging and key ceremony protocols
• [Repository Coming Soon]

Implementing and comparing threshold signature schemes for Bitcoin:

• FROST vs MuSig2 trade-off analysis
• Performance benchmarks and security models
• Production deployment patterns
• Read my analysis → [Coming Soon]

Open-source security templates and threat models for Bitcoin infrastructure:

• Terraform modules for secure Bitcoin node deployment
• Kubernetes security standards for custody systems
• Threat modeling frameworks for Bitcoin companies
• [Repository Coming Soon]

Currently deep-diving into:

• Bitcoin Protocol: Script, Miniscript, Taproot, Schnorr signatures
• Threshold Cryptography: FROST protocol, MuSig2 (BIP-327), verifiable secret sharing
• Confidential Computing: Nitro Enclave architecture, attestation verification, sealed storage
• Hardware Security: HSMs (PKCS#11), secure elements, side-channel resistance
• Production Security: Key ceremonies, disaster recovery, incident response for custody systems

I write about Bitcoin security, confidential computing, and production cryptography:

• 📝 Wartime Engineer - Technical deep-dives on Bitcoin custody architecture
• 🎤 Conference submissions (2026): Bitcoin++, Adopting Bitcoin, TabConf
• 🎥 Technical tutorials: Building with Nitro Enclaves, FROST implementation guides

• 🔐 Building Bitcoin + Lightning infrastructure at scale serving 100k+ users across Africa
• 🧹 Led migration of legacy systems to Kubernetes with zero downtime
• 🛡️ Implemented infrastructure security automation and compliance frameworks (PCI-DSS, SOC2)
• 🔭 Built observability pipelines for real-time Bitcoin transaction monitoring
• 🧠 Currently building production Bitcoin custody systems with TEE backing
• 📖 BTrust Faculty - Teaching Bitcoin protocol development

I'm actively seeking roles in:

• Bitcoin infrastructure security engineering
• Confidential computing & TEE development
• Threshold cryptography implementation
• Custody systems architecture

Interested in: Remote roles at Bitcoin companies, security-focused infrastructure positions, applied cryptography engineering.

I'm always open to discussing Bitcoin security, confidential computing, threshold cryptography, or potential collaborations.

• 📧 Email: [email protected]
• 🐦 Twitter: @jackhoudini__
• 💼 LinkedIn: nonso-amadi
• 📝 Blog: Wartime Engineer

Currently building: Bitcoin custody infrastructure with confidential computing Currently learning: FROST threshold signatures, Nitro Enclave development, Bitcoin Script Currently seeking: Remote Bitcoin infrastructure security roles