Backend engineer · Engineering manager
Senior Backend Engineer and Engineering Manager
I build and run backend systems for products where correctness and uptime matter: trading, payments, operator workflows, and real-time communication. I lead a team of eight, but I still write code, review queries, debug production, and ship.
Based in Adana, Turkey · Most recent work in NestJS and TypeScript
Experience
5+ yrs
Team led
8
Uptime
99.9%
Latency
-40%
Realtime
500+
Focus
NestJS
Selected work
LicenseMarket
99.9% uptime, 40% lower API latency, team of 8
Mobasher
Chat, VoIP, video sessions, Socket.IO, and WebRTC flows
GBT Market
Gold and crypto trading, wallets, payments, live pricing
Exmodule
KYC/AML, document verification, exchange integrations, and financial data models
Case studies
Financial backend systems with KYC/AML, exchange integrations, blockchain nodes, and polyglot persistence.
Enabled compliant onboarding and scalable backend features for financial workflows.
Scaling a production NestJS backend with PostgreSQL, Redis, RabbitMQ, Prisma, and disciplined team delivery.
Maintained 99.9% uptime, reduced API latency by 40%, and supported consistent delivery with a backend team of 8 engineers.
Gold and crypto trading backend systems with live pricing, chart history, wallets, payments, and provider/admin operations.
Shipped trading and payment backend capability for gold and crypto market flows, including live pricing, chart history, wallet transactions, gateway integrations, and production operations.
A consulting platform with chat, VoIP, video, learning modules, and backend microservices.
Supported 500+ concurrent users with real-time communication flows and faster SQL retrieval paths.
Public work
Small Rust API with Axum and Tokio routes, typed Serde models, health checks, integration tests, and deployment notes.
Real-time communication client demonstrating WebRTC product capability and communication UX.
Safe, chainable comparison methods for direct values and potentially undefined or null values in nested object paths.
Full-stack personal platform with backend-managed content, admin workflows, case studies, and production deployment.
Recent experience
LicenseMarket
Oct 2023 - Present
Led backend architecture, delivery, infrastructure, and real-time product systems for a production commerce and operator platform, balancing team leadership with hands-on NestJS, PostgreSQL, Redis, RabbitMQ, Prisma, Puppeteer, Nginx, and server operations.
GBT Market
Jan 2025 - Jun 2026
Built backend services for a gold and crypto trading platform, covering real-time pricing, chart history, wallet and transaction workflows, payment gateway integrations, provider/admin operations, and production support.
Writing
ORM relationship decorators are only trustworthy when they match the actual database constraints, indexes, and query behavior.
Validation in NestJS works best when DTOs describe transport input, services own business rules, and transformation is deliberate.
Small TypeScript utilities become reliable when null behavior, path parsing, mutation rules, and tests are designed up front.
References
"I have been consistently impressed by his expertise and professionalism. His dedication and positive attitude make him not only a valuable team member but also a great colleague."
"Saeed's expertise in backend technologies, especially with NestJS, was evident in every project he contributed to. He wrote clean, efficient code with a focus on scalability and performance."
"Saeed is very organized, meticulous, and an excellent colleague for solving challenging project issues. His positive energy and dedication make him an invaluable asset to any team."
"Saeed demonstrated a strong grasp of backend technologies and applied his knowledge effectively to build robust, efficient, and scalable APIs."