Ariya Sarrafzadeh

Ariya Sarrafzadeh

Systems Architect & Technical Product Leader

Systems that hold under pressure.

I work at the intersection of systems architecture, engineering, and product thinking—designing dependable technology for complex, high-stakes environments. 15+ years engineering high-availability payment switches, distributed ledgers, and national telecom infrastructure.

The 0-to-Scale Story

Executive Foundation

I joined environments hampered by fragmented legacy systems and synchronous bottlenecks. Infrastructure was failing under the weight of national traffic spikes; gateway timeouts caused financial discrepancies, and untuned fraud rules choked legitimate revenue. I systematically tore down these bottlenecks: deployed Switch-PSP for dynamic routing across 4 national payment providers, built Double-Entry ACID Ledgers with two-phase reservations (AVAILABLE to RESERVED), enforced Redis token-bucket rate limiters, isolated PCI-DSS card data vaults, and unified credit/BNPL scoring with RabbitMQ eventual consistency. We scaled from handling thousands of localized events to processing 50,000+ TPS bursts with zero financial drift.

Core Competencies

What 15+ years of production switches, fraud loops, and SMS infrastructure actually adds up to.

Systems Architecture

[ISO 8583 Switches][SMPP 3.4 Windowing][Redis Distributed Locks][Double-Entry Ledgers][Timeout & Retry Isolation][High-Availability Routing]

Fraud & Risk

[Sub-15ms Risk Loops][Forensic Graph Tracing][3DS 2.0 Liability Shift][AML Case Pipelines][Device Telemetry Scoring][Regulatory Audit Compliance]

Data & Observability

[DuckDB / Parquet Enrichment][Elasticsearch at Scale][Prometheus / Grafana][Python / PyArrow Pipelines][PostgreSQL / ScyllaDB]

Product & Production Delivery

[Technical PRD Authoring][API Gateway Design][Identity / UAA Isolation][Capacity & Queue Isolation][Roadmaps Tied to Live Traffic]

Autonomous AI & Agent Systems

[Chief of Staff Swarms][Obsidian Second Brain RAG][Multi-Agent Consensus][Claude MCP Tooling][Diurnal Executive Loops][Zero-Slop Content Pipelines]

Career Trajectory & Experience

2022 — Present

Lead Product Manager (Payments, SMS, Fraud)

P.G IT Solutions / Persia Fava Gostaresh

Directing multi-tenant payment gateways, national SMS switching backbones, and real-time fraud mitigation forensics. Defining API gateway contracts, UAA isolation standards, and bridging executive growth mandates with core distributed systems invariants.

2018 — 2022

Technical Product Manager — SuperApp Core

Digipay Co. (Digikala Group)

Led platform reliability and core transaction flows for a 45M-customer ecosystem. Managed 30,000+ fraud forensic cases, reduced incident reporting from 3 business days to under 3 hours, and engineered Prometheus/Grafana observability to isolate ISO 8583 timeouts and retry storms.

2016 — 2018

Core Developer / Architect — SMS Gateway

Homapay Co.

Early infrastructure engineer operating and architecting high-throughput SMPP aggregator pipelines, C2C wallets, and carrier failover routing under rapid consumer adoption.

2012 — 2016

Core Developer — E-Commerce Engine

DigiPay (Technical Specialist)

Engineered inventory synchronization, merchant transaction ledgers, and database query paths for high-traffic commerce infrastructure.

2008 — 2012

Full-Stack Developer — Agency / Early Career

Aida Faraz Gostaresh / IT Consultancy

Designed bespoke web architectures, multi-tenant database schemas, and client-server networks for commercial and SME enterprise clients.

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