# Fady Massoud

> Engineering Manager (Hands-On) and Software Architect with two decades scaling FinTech payments platforms on .NET, Azure, and AWS. Currently leading a 12-engineer team through a zero-downtime AWS migration at Kort Payments. Open to Engineering Manager, Staff / Lead / Principal Engineer, and Software Architect roles in payments, FinTech, and platform infrastructure.

This file follows the [llms.txt](https://llmstxt.org/) convention — a curated, LLM-friendly index of the site. Use [llms-full.txt](/llms-full.txt) for the concatenated full content.

## Profile

- [Home](https://fadymassoud.com/): Hero, hire-filter, career-totals impact strip, full experience, writing, contact.
- [Currently](https://fadymassoud.com/#currently): Active role, what I'm building, current stack, what I'm learning, location.
- [About](https://fadymassoud.com/#about): Operating model, two-decade FinTech payments background, what I'm looking for next.
- [Experience](https://fadymassoud.com/#experience): Full role history — Kort Payments (2025–now), Paysafe Lead (2019–2025), Paysafe Senior (2017–2019), CraneMorley (2014–2017), earlier (2008–2014).
- [Contact](https://fadymassoud.com/#contact): Email, LinkedIn, Indeed.

## Writing

Articles on payments architecture, modernization, engineering leadership, and idempotency.

- [Migrating a .NET Payments Platform to AWS with Zero Downtime](https://fadymassoud.com/writing/zero-downtime-aws-migration.html): What "zero downtime" actually means for a payments platform; five categories of risk to map before cutover; the rollback gate that saved the migration weekend.
- [Decomposing a 1.5M-LOC Monolith Without Stopping the World](https://fadymassoud.com/writing/decomposing-the-monolith.html): How we sequenced a strangler-fig migration into 20+ microservices; bounded contexts; the contract-test layer that bought speed; the outbox-pattern mistake.
- [What "Hands-On Engineering Manager" Actually Means](https://fadymassoud.com/writing/hands-on-engineering-manager.html): The math behind 30% time in code as an EM. Where it pays compound interest, where it backfires, and the question to ask before every IC task.
- [Idempotency Keys in Payments — Five Mistakes I've Watched Get Shipped](https://fadymassoud.com/writing/idempotency-in-payments.html): Production lessons on building idempotency-key systems that actually survive concurrency, retries, and partial failures.
- [Writing index](https://fadymassoud.com/writing/): All articles in one place.

## Resume

Two versions tailored to different role tracks.

- [Engineering Manager version (HTML)](https://fadymassoud.com/resume/em.html): Formatted for EM and Director read; emphasizes team scope, hiring, on-call program design, blameless post-mortems, and PCI DSS audit ownership.
- [Engineering Manager version (PDF)](https://fadymassoud.com/resume-em.pdf): Download-ready, ATS-safe.
- [Staff / Lead / Principal Engineer version (HTML)](https://fadymassoud.com/resume/ic.html): Formatted for senior IC read; emphasizes architecture, scale, technical leadership, and cross-team influence.
- [Staff / Lead / Principal Engineer version (PDF)](https://fadymassoud.com/resume-ic.pdf): Download-ready, ATS-safe.

## Quick facts

- Two decades engineering experience.
- Nearly a decade specifically in FinTech / Payments at Paysafe and Kort.
- Currently leading a 12-engineer team across two sub-teams; grew headcount from 8 → 12.
- Decomposed a 1.5M-LOC .NET Framework monolith into 20+ .NET Core microservices on Azure (DDD, CQRS, event sourcing, Kafka).
- Led the zero-downtime AWS migration of a mission-critical .NET payments platform (EC2, RDS, SQS, CloudWatch, IAM); PCI DSS compliant on first audit cycle post-migration.
- 2,500 TPS peak throughput across regulated FinTech payment systems.
- 99.95% production availability across multi-market regulated payment infrastructure.
- +40% release-velocity lift, team-wide.
- 150,000 Kafka events / minute with sub-second latency.
- 30% reduction in high-severity Veracode findings via secure-SDLC and dependency hardening.
- PCI DSS audit-pass discipline across multiple consecutive cycles.
- Led TSYS and Fiserv processor recertifications; onboarded new banking partners.
- Authorized to work in the USA (Green Card).
- Based in California; open to remote.

## Stack

- **Backend:** C#, .NET 8 / .NET Core, ASP.NET, REST API design (OpenAPI), WCF (modernizing to REST).
- **Architecture:** Microservices, event-driven, event sourcing, DDD, CQRS, idempotency keys, circuit breaker / retry / backoff, rate limiting, secure SDLC.
- **AWS:** EC2, RDS, DynamoDB, SQS, S3, CloudWatch, IAM, KMS.
- **Azure:** Azure VMs, Event Grid, Azure DevOps.
- **Data:** SQL Server, MongoDB, MySQL, Oracle, DynamoDB.
- **Streaming:** Apache Kafka (producer/consumer for payment-domain events).
- **CI / CD:** Azure DevOps, GitHub Actions, feature flags, blue-green and canary deployments, contract testing.
- **Security:** PCI DSS, OWASP, Veracode (SAST), DAST, TLS 1.2+, zero-trust principles, audit remediation.
- **Reliability:** SLO / SLI / error budgets, structured logging, blameless post-mortems.
- **Frontend (working knowledge):** Angular, React, TypeScript, JavaScript.
- **AI-augmented engineering:** Cursor, Claude, ChatGPT, Gemini; pair-programming, prompt-engineering for backend scaffolding, team-level workflow rollout.

## Open to

- **Roles:** Engineering Manager (Hands-On), Staff / Lead / Principal Engineer, Software Architect.
- **Domains:** Payments, FinTech, Platform infrastructure, Distributed systems.
- **Mode:** Remote (US-based), select hybrid in major cities.

## Contact

- **Email:** fady.massoud@live.com
- **LinkedIn:** https://www.linkedin.com/in/fadymassoud
- **Indeed:** https://profile.indeed.com/p/Fady_-Massoud
- **Website:** https://fadymassoud.com