Post-Quantum Ready  ·  Edge-Native

Cryptographically
Hardened Systems

for Sovereign Infrastructure.

We engineer mission-critical platforms where cryptographic integrity, edge autonomy, and zero-failure tolerance are baseline requirements — not afterthoughts. Serving organizations for whom compromise is not an option.

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Core Competencies
// PQC-001

Post-Quantum Cryptographic Engineering

CRYSTALS-Kyber/Dilithium migration, DTLS/SRTP hardening, HMAC-verified pipeline architecture for post-2030 threat landscapes.

// EAI-002

Edge AI at Silicon Level

ASIC/SoC-optimized inference pipelines, Cloudflare Workers edge deployment, bandwidth-constrained clinical and field environments.

// MCA-003

Mission-Critical Automation

Multi-tenant SaaS with zero-downtime guarantees, AES-256-GCM encryption at rest, SSE-only real-time architecture.

Trusted by
Sankara Healthcare FoundationDSMSoft · Enterprise
What We Engineer

Specialist Capabilities

Each engagement is led by a principal engineer — not a project manager. We do not subcontract the core work.

🔐
PQC

Cryptographic Engineering

  • ▸Post-quantum key encapsulation (CRYSTALS-Kyber)
  • ▸Digital signature migration (CRYSTALS-Dilithium)
  • ▸DTLS 1.3 / SRTP pipeline hardening
  • ▸HMAC-SHA256 webhook verification
  • ▸Zero-knowledge architecture advisory
⚡
EAI

Edge AI & Silicon Systems

  • ▸ASIC / SoC inference optimization
  • ▸Cloudflare Workers AI deployment
  • ▸Diabetic retinopathy detection (Kannoli AI)
  • ▸Bandwidth-constrained clinical inference
  • ▸Model quantization for embedded targets
🛡
SVC

Sovereign Infrastructure

  • ▸Multi-tenant SaaS on Cloudflare Workers
  • ▸AES-256-GCM encryption at rest
  • ▸SSE-only real-time architecture (no polling)
  • ▸Zero-trust network segmentation
  • ▸Edge-native UPI / payment pipeline (Razorpay)
⚙
MCA

Mission-Critical Automation

  • ▸Svasthya Suci: multi-tenant EHR for charitable hospitals
  • ▸OPD, surgical camp, dialysis module orchestration
  • ▸Zero-downtime scheduled release pipelines
  • ▸Audit-trail-first data architecture
  • ▸Compliance-ready HIPAA / IT Act 2000 design
🔍
SEC

Security Architecture

  • ▸Threat readiness assessment (45-min architecture review)
  • ▸Data-in-transit and data-at-rest security and integrity
  • ▸Security ASIC integration advisory
  • ▸Penetration test readiness review
🧠
AI

Enterprise AI Systems

  • ▸MarketPredict: quantitative forecasting vs LLM benchmarks
  • ▸Multi-LLM orchestration (GPT-4o, Claude, Grok)
  • ▸RAG pipeline architecture
  • ▸AI-assisted fractional CTO / VP Engineering delivery
Principal

Rajesh Vaidheeswarran

Principal engineer and architect with a career spanning embedded systems, AI/ML at the silicon level, post-quantum security, and multi-tenant healthcare SaaS. Every PSDI engagement is led — not overseen — by RV directly. No juniors handed the core work. No subcontracting the hard parts.

RoleCo-Owner & Principal Consultant, PSDI
EngagementFractional CTO / VP Engineering
SpecialtiesEmbedded Systems · AI/ML · Post-Quantum · SaaS
BaseNorthborough, MA · Serving clients globally
Product Portfolio

Built, Not Pitched

PSDI's consulting credibility is anchored in live product ownership. We build what we recommend.

Kannoli AI
Edge-native diabetic retinopathy detection
Svasthya Suci
Multi-tenant EHR for charitable hospitals
MarketPredict
Quantitative forecasting vs LLM benchmarks
Cognivara Health
Clinical AI platform
TalentCopilot
AI-assisted hiring pipeline
CodeFiducia
Audit-trail code governance
Engage

Request a Threat Readiness Assessment

A 45-minute architecture review led directly by RV. We identify your highest-risk attack surface, assess quantum-readiness, and outline a hardening roadmap — at no cost, with no sales handoff.