Staff Security Infrastructure Engineer @ Parafin
Building Zero Trust security for an $8B+ fintech platform powering capital access on Amazon, DoorDash, Walmart & TikTok Shop
name: Neeraj Kumar Singh Beshane
location: San Francisco Bay Area, CA
current_role: Staff Security Infrastructure Engineer @ Parafin
previous: [Meta Reality Labs, Raymond James, Wayfair, JPMorgan Chase, American Express]
experience: 15+ years
focus: Security Infrastructure x Distributed Systems x GenAI
publications: Published researcher in AI/RAG security
speaking: Conf42 DevOps 2026 — Invited Speaker
fellowships: [IICSPA Fellow, Sigma Xi Full Member, IEEE Member]Each chapter built on the last — from writing COBOL adapters to architecting Zero Trust infrastructure.
2025 ──────── PARAFIN ──────────────────────────────────────── present
Dec Staff Security Infrastructure Engineer
├─ Architecting Zero Trust security for $8B+ fintech platform
├─ Partners: Amazon, DoorDash, Walmart, TikTok Shop
├─ Security mock drills, incident response, BC/DR, PII governance
└─ YC-backed, $750M valuation
2024 ──────── META (REALITY LABS) ──────────────────────────── 2025 Dec
Jun Staff Software Engineer
├─ Led CI/CD modernization (Project Chesterfield) for Quest & Ray-Ban
├─ GenAI migration tool: 95% manual effort reduction, $386K/yr savings
├─ UBM metadata service: 150M+ req/day, 99.9% reliability
├─ Onboarding assistant: 55% oncall reduction, adopted by 3 teams
└─ Mentored 6 SEs (3 promoted to Staff within 12 months)
2024 ──────── RAYMOND JAMES ────────────────────────────────── 2024 Jun
Apr Lead Software Development Engineer
├─ Document generation platform: 8K-12K docs/month, 99.2% success
└─ Established 95% code coverage standard across team of 8
2022 ──────── WAYFAIR ──────────────────────────────────────── 2024 Mar
Jan Technical Architect / Principal
├─ DevSecOps platform: 50M+ security checks/month
├─ Kubernetes policy-as-code engine (3% false positive rate)
├─ Unified OAuth 2.0: 125M+ API calls/week, 99.97% uptime
├─ Selected as 1 of 3 architects from 50+ for security roadmap
└─ Mentored 20+ engineers (8 promoted to senior/staff)
2019 ──────── JPMORGAN CHASE ───────────────────────────────── 2021 Dec
Mar Senior Software Engineer (CIB)
├─ Escrow platform: $40B+ in deposits
├─ Saga-pattern payment service: 10K+ daily transactions
└─ Auth framework adopted by 18+ CIB teams
2011 ──────── AMERICAN EXPRESS (via TCS) ───────────────────── 2019 Mar
Dec Systems Engineer → Senior Software Developer
├─ Monolith to microservices: 60% code reduction, 66% faster APIs
├─ B2B integration: 2M+ monthly requests, 15+ carrier partners
├─ Locations: Bangalore → Montevideo → Phoenix
└─ This is where the journey began 🚀
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EmbedGuard: Cross-Layer Detection and Cryptographic Attestation for Secure Retrieval-Augmented Generation PeerJ Computer Science (under review) |
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In Progress:
| Paper | Domain |
|---|---|
| GenOps: A Governance-First Architecture for Enterprise AI Systems | AI Governance / DevOps |
| TriArchitect: A Shared-State Multi-Agent Framework for Safe Java Code Migration | Multi-Agent Systems |
| RuntimeGuard AI: Runtime Verification for Autonomous AI Agents | AI Safety / Runtime |
18+ Technical Articles on Medium & LinkedIn — Distributed systems, CI/CD, Kafka, Kubernetes, RAG, security
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Conf42 DevOps 2026 — Invited Speaker A framework for integrating GenAI into CI/CD with four pillars: contextualization, strategic guardrails, deployment assurance, and governance audit trails.
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| Organization | Designation | Detail | |
|---|---|---|---|
| 🏅 | IICSPA | Fellow (FIICSPA) | Top 1% of 5,500+ members. Peer-reviewed by experts from IBM, Moody's, SAP, JPMC, Goldman Sachs |
| 🔬 | Sigma Xi | Full Member | The Scientific Research Honor Society (est. 1886). 200+ Nobel laureates among members |
| ⚡ | IEEE | Member | Institute of Electrical and Electronics Engineers |
Languages Java · Python · Go · TypeScript · Groovy
Frameworks Spring Boot · FastAPI · Node.js · React
Cloud AWS · GCP · Kubernetes · Terraform · Docker
Security Zero Trust · IAM · Policy-as-Code (OPA/Kyverno) · TLS/mTLS
Data Kafka · PostgreSQL · Cassandra · Redis · BigQuery
AI/ML RAG Pipelines · LLM Integration · Prompt Engineering · MCP
DevOps CI/CD · GitOps · ArgoCD · Datadog · PagerDuty
Patterns Microservices · Event Sourcing · CQRS · Saga · mTLS
| Article | Platform |
|---|---|
| Prompt Engineering vs Context Engineering vs Reasoning Engineering | |
| From 50 Million Events to a Single Answer: Building a RAG Pipeline | Medium / LinkedIn |
| Battle-Tested Multi-Region Deployment: Scaling Spring Boot Microservices | |
| From ACID to AI: The Ultimate Guide to Modern Databases | Medium |
| The Kubernetes Odyssey: Embark on a Technological Adventure! | Medium |
🐶 Dog Dad Proud parent of Byte, a mischievous beagle
✈️ Global Dev Coded in Bangalore, Montevideo, Phoenix, Tampa, San Francisco
🚴 Trail Explorer System design on two wheels
