# Fady Naffa

Fady Naffa is a remote worker on Himalayas, Senior Software Engineer at Toptal, based in Jordan.

Source: https://himalayas.app/@fadynaffa

```text
Senior Software Engineer at Toptal building an AI-native ATS and Claude-powered sourcing pipelines with production guardrails.
```

| Detail | Value |
| --- | --- |
| Availability | Looking for a job |
| Location | Jordan |
| Authorized to work in | Jordan |
| Salary expectations | 90k+ USD |
| Job categories | Software Engineer, Technical Lead, Engineering Manager, Head of Engineering |
| Skills | Backend Engineering, SaaS Platforms, LLM Systems, Claude APIs, Structured Outputs, Agentic Workflows, LLM Evaluation, Token Cost Metering, Vector Search, Distributed Systems, Microservices, Payments, Ledgers, Subscriptions, KYC |

## About

```text
At Toptal, I’m building an AI-native Applicant Tracking System and the Claude-powered pipelines behind agentic candidate sourcing. I’ve shipped structured-output job intake and added controls including spend caps, cost metering, and safe retries.

Before Toptal, I built payroll and HR products from zero as a technical co-founder of ZenHR, and worked on SaaS, payments, and cross-border payroll at Oyster, Contentful, Sensor Tower, and Talent Inc. Across these systems, I’ve worked on ledgers, billing, and KYC/KYB, and led and mentored engineering teams.
```

## Experience

### Senior Software Engineer (current)

[Toptal](https://himalayas.app/companies/toptal). Jun 2026 - Present

```text
Lead and mentor 10+ engineers on AI hiring products, building an AI-native ATS and LLM pipelines with structured outputs and production guardrails.
```

Skills: Ruby-on-Rails, GraphQL, React, TypeScript, GCP, Kubernetes, Claude-APIs, Structured-Outputs, Agentic-Workflows, LLM-Evaluation, Token-Cost-Metering, OAuth, Multi-tenancy, RSpec, Mutation-Testing

### Senior Software Engineer

revie.io. Jul 2025 - Jun 2026

```text
Built go-to-market tools and automation pipelines on n8n for sales and growth teams, and designed the backend services and infrastructure behind them.
```

Skills: N8n, API-Design, Automation, Backend-Development

### Senior Software Engineer

[Oyster](https://himalayas.app/companies/oyster-hr). Nov 2022 - May 2026

```text
Owned backend systems for cross-border payroll and compliance, built money movement with Stripe and PayPal, and led a team of 10+ engineers.
```

Skills: Ruby, PostgreSQL, Redis, Stripe, PayPal, KYC, KYB, Distributed-Systems, Microservices, Ledgers, Payments

### Software Engineer

Talent Inc. Apr 2024 - Jul 2025

```text
Helped launch Career.io and split shared functionality out of the Rails monolith into services. Built subscription billing with Stripe and made payment webhooks idempotent.
```

Skills: Ruby-on-Rails, Stripe, Elasticsearch, Idempotency, Microservices

### Senior Software Engineer

[Sensor Tower](https://himalayas.app/companies/sensor-tower). Nov 2021 - Oct 2022

```text
Led refactoring and extraction of services into microservices, delivered backend API features, and improved CI/CD pipelines and developer tooling.
```

Skills: Microservices, API-Design, CI-CD, Ruby, Ruby-on-Rails

### Senior Software Engineer

[Contentful](https://himalayas.app/companies/contentful). Mar 2020 - Oct 2021

```text
Designed new microservices and split the core monolith into independently deployable services. Built user-management APIs, fine-grained access control, and SSO.
```

Skills: Microservices, API-Design, SSO, OAuth, Ruby, Ruby-on-Rails, Kubernetes

### Senior Software Engineer

Equiti Group. Dec 2019 - Feb 2020

```text
Software engineering for a fintech and online trading group.
```

### Co-Founder and Head of Engineering

ZenHR. Jul 2015 - Nov 2019

```text
Co-founded the company as technical lead and built the payroll and HR platform from zero. Grew to Head of Engineering, leading a team of 10+ engineers and building the payments stack.
```

Skills: Ruby, Python, PHP, PostgreSQL, Elasticsearch, Redis, AngularJS, React, Stripe, PayPal, Test-Driven-Development, CI-CD, Scrum

### Software Engineer

MenaITech. Jul 2013 - Jun 2015

```text
Owned the release cycle and production stability of an HRMS and payroll platform, and served as the last line of support for deployment issues and production incidents.
```

Skills: SQL-Server, IIS, PHP

### Software Engineer

Prodigi Corporation. Jan 2013 - Jun 2013

```text
Built campaign web apps, marketing games and social media integrations.
```

Skills: PHP, MySQL, JavaScript, FacebookSDK

## Education

### Al-Balqa Applied University

Bachelor of Science, Information Technology. 2008 - 2013

```text
Pursued a Bachelor of Science in Information Technology with a focus on Computer Information Systems.
```

## Tech stack

- Sidekiq
- Kubernetes
- GitHub Actions
- MySQL
- PostgreSQL
- Ruby on Rails
- Redis
- React
- AngularJS
- JavaScript
- Python
- PHP
- Ruby
- Linux
- Stripe
- PayPal
- GraphQL
- Elasticsearch
- TypeScript
- RSpec
- Docker
- N8N
- AWS
- Claude API

To contact Fady, message them from this profile with a Himalayas employer account: [Hire on Himalayas](https://himalayas.app/hire).

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