Essam Elsayed

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ABOUT ME

Principal Software Engineer and Architect with 23 years of experience, the last nine leading remote, distributed teams (2-10 engineers). AI-first: I build MCP servers that give AI agents access to business data, and I run agent-driven development workflows with Claude Code.

I design and build production systems that keep running while they change: incremental replacement of a legacy student information system (10 systems integrated, ~500K records migrated, 100K users), two-way integrations with HubSpot, FinalSite, Stripe and rostering platforms, event-driven AWS backends (transactional outbox, event-sourced audit trails, queues with replay), and zero-downtime PostgreSQL migrations.

Stack: TypeScript, Node.js (Hono, NestJS, Next.js, tRPC), Python (Django, DRF, Celery), React, PostgreSQL, DynamoDB, AWS CDK (Lambda, Step Functions, EventBridge), GitHub Actions, Playwright. Also built education products: Athena (K-12 and SAT prep) and Reading Critters (AI-assisted English and maths for K-3).

Open to senior, lead and architect roles, as an employee or a contractor.

Cairo (+03:00)

Joined April 2024

EXPERTISE

4 years experience

4 years experience

4 years experience

10 years experience

4 years experience

8 years experience

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SOCIAL PRESENCE

GitHub

Adfenix-Test

openshift_mono_cart

ASP

EMPLOYMENTS

Product Chief Architect

Aurea (remote job, Crossover)

2016-01-01-Present

Principal engineer on distributed teams of 2-10, building and migrating a multi-tenant education platform and its AI products.

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Principal engineer on distributed teams of 2-10, building and migrating a multi-tenant education platform and its AI products.

SIS rebuild: architect the incremental replacement of a legacy student information system, kept in sync during the transition (strangler pattern), with a declared owner for every field. 10 systems integrated, ~500K records migrated, 100K users.

Integrations: two-way sync with HubSpot, FinalSite, Stripe, Maxio, Clerk and OneRoster-style platforms; record matching, rate limits, webhooks, idempotent reconciliation jobs.

Event-driven AWS backends (Lambda, Step Functions, EventBridge, Aurora, Cognito) with transactional outbox, event-sourced audit trails, dead-letter queues and replay, defined in CDK.

Data engineering: PostgreSQL design and tuning, zero-downtime migrations, production data repairs by dry run, peer verification, audited apply and post-check.

Products: Athena (K-12 teaching and SAT prep) and Reading Critters (AI-assisted English and maths for K-3).

AI engineering: MCP servers that expose business data to agents, evals for agent documentation, custom Claude Code skills, automated review in CI.

Delivery: per-PR environments, GitHub Actions, CloudWatch alarms for silent failures, Playwright E2E tests, code review.

SQL

Node.js

SharePoint

SQL

Node.js

SharePoint

TypeScript

React

.NET

AWS CDK

Principal Software Engineer (L3)

ITWORX (Cairo, Egypt)

2003-01-01-2016-01-01

Architect, design, implement, and deliver software services using Microsoft
technologies: SharePoint, SQL Server, <a href="http://...

Architect, design, implement, and deliver software services using Microsoft
technologies: SharePoint, SQL Server, ASP.NET, MVC, Web Services, WCF, WWF, C#.
A lead and a team member and technical reference.

SQL

SharePoint

.NET

SQL

SharePoint

.NET

ASP.NET

Senior Software Engineer

Data Web (Cairo, Egypt)

2002-01-01-2003-01-01

Implement commercial software products using Java 1.0. A team member.

Java