Senior Backend Engineer · Abu Dhabi, UAE

Build
Products,
Not Features.

6 years building fintech platforms, eCommerce systems, and payment infrastructure, with a strong focus on scalable event-driven microservices. Node.js · NestJS · AWS.

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6+
Years Exp.
15+
Projects
4+
Industries
4+
Countries
Ahmad Al-Zein
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✦Node.js
✦NestJS
✦MongoDB
✦PostgreSQL
✦Apache Kafka
✦AWS
✦React
✦Next.js
✦Docker
✦TypeScript
✦GraphQL
✦Microservices
✦Node.js
✦NestJS
✦MongoDB
✦PostgreSQL
✦Apache Kafka
✦AWS
✦React
✦Next.js
✦Docker
✦TypeScript
✦GraphQL
✦Microservices
About Me
The Engineer
Behind The Code.

I'm Ahmad Al-Zein, a Senior Backend Engineer with 6 years of experience in fintech and eCommerce — payment processing, compliance systems, investment platforms, and high-volume B2B commerce.

I've worked across the UAE, Saudi Arabia, and beyond — building systems that handle millions in transactions with the security and reliability fintech demands.

B.Sc. Informatics Engineering, specializing in AI — Arab International University, 2022.

Download Resume Portfolio as API Postman
LocationAbu Dhabi, UAE
Phone+971 54 755 1927
Email
LinkedInahmad-al-zein ↗
LanguagesEnglish (Pro) · Arabic (Native)
EducationB.Sc. Informatics Eng.
Focus● Fintech · eCommerce · Scalable Systems
Expertise
What I
Bring to the Table.
⚡
Backend Development

High-performance APIs and event-driven microservices built to scale.

Node.jsNestJSExpress.jsASP.NET CoreGraphQLREST
🗃
Databases

Optimized schemas and queries across relational and document stores.

MongoDBPostgreSQLMySQLMSSQLCosmosDB
☁
Cloud & DevOps

Cloud-native deployments with CI/CD automation and containerization.

AWSGCPAzureDockerCI/CDEC2 · S3
📨
Messaging & Real-Time

Async, high-throughput pipelines with message brokers.

KafkaRabbitMQSocket.IOKinesis
💳
Fintech & Payments

Payment gateway integrations and compliance-ready financial systems.

StripeTapFatoraJumioSMSA
💻
Frontend

Responsive UIs for full-stack delivery.

ReactNext.jsAngularTypeScript
Career
Where I've
Made an Impact.
Jan 2024 — Present
Finstreet Limited
ADGM · Abu Dhabi, UAE
Senior Backend Developer
  • Reduced unauthorized access attempts by 30% via NestJS + MongoDB security improvements.
  • Built investment platform increasing transaction efficiency by 35%.
  • Managed microservices with real-time Socket.IO and Kafka streaming.
  • Delivered Next.js + React frontend integrated with backend services.
May 2025 — Nov 2025
Human Tag
Executive Education · Riyadh, KSA
● Contract
Software Engineer
  • Led backend development with NestJS and MongoDB for an educational platform.
  • Managed CI/CD pipelines and server infrastructure for high availability.
  • Contributed to Next.js frontend development.
Apr 2022 — Nov 2023
Shedu Group
Dubai, UAE
Full Stack Developer
  • Built scalable backends with Node.js, Express.js & ASP.NET Core, improving efficiency by 35%.
  • Optimized database schemas, improving query performance by 40%.
  • Reduced project delays by 20% through proactive client collaboration.
Nov 2021 — Oct 2023
Orkabit
Remote
Backend Developer
  • Streamlined backend systems, reducing processing time by 20%.
  • Led secure deployment process, cutting deployment errors by 50%.
  • Optimized database queries, reducing server response time by 15%.
May 2021 — Nov 2021
Grayscale
Damascus, Syria
Backend Developer
  • Designed Use Cases, SRS documents, and ERDs for agency internal systems.
  • Improved Node.js backend performance by 20% via optimized coding methodologies.
Work
Selected
Projects.
Finstreet
01↗
Finstreet Finance Platform
Fintech platform for startups and SMEs to raise capital. Supports Equity Funding, Private Placement, and Invoice Financing.
NestJSMongoDBKafkaAWSSocket.IONext.js
BENA
02↗
BENA eCommerce
B2B eCommerce for construction materials with APIs for catalog, orders, and user roles. Secure payment workflows.
NestJSMongoDBB2BPayments
AZ Courses
03↗
AZ Courses
E-learning platform with video chunking and mobile-optimized streaming. Boosted engagement 25%. Published file-chunkify on npm.
NestJSAngularMongoDBnpm
Fatora Merchant Portal
04↗
FMP — Fatora Merchant Portal
Payments management system handling creation, cancellation, and reversal of payments — increasing merchant control by 40%.
Node.jsASP.NET CoreMSSQLAngular
SA
05↗
Sendyanarts
Inventory, production line, and employee shift/cost tracking with stage-based project tracking and comprehensive reporting.
NestJSMongoDBAnalyticsERP
BS
06↗
Billing Server
Centralized billing app consolidating multiple providers. Reduced billing errors by 20% through automated validation.
Node.jsExpress.jsAngularMSSQL
Contact
Have a project or idea? Let's Build It Together.
LinkedIn +971 54 755 1927 Download CV Portfolio API
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Drop Me
a Line.

Whether you have a project, a collaboration idea, or just want to connect — send me a message and I'll get back to you within 24 hours.

Email
Location
Abu Dhabi, UAE

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