Case studies
Production work, one decision at a time.
These are systems I worked on for employers and clients. Each story explains my contribution and the engineering decisions; company code and customer data stay private.
LicenseMarket: faster APIs while shipping features
Database and API performance work on a commerce and CRM platform, alongside backend team management.
My role: Engineering Manager / backend architecture owner
40% lower average API latency and 99.9% platform uptime over approximately six months.
Read the case studyGBT Market: reliable wallet and trading flows
Ongoing freelance work on gold and cryptocurrency trading, with a focus on wallet consistency and live market data.
My role: Freelance backend developer for trading and payment systems
Atomic balance updates and idempotency safeguards protect against concurrent overdrafts and duplicate transaction logs.
Read the case studyMobasher: messaging and live consultation
NestJS microservices for consulting, learning, messaging, and voice/video sessions.
My role: Backend developer on communication-heavy platform
500+ concurrent users in production, with observed messaging latency of 100–150 ms.
Read the case studyExModule: verification and exchange integrations
Cryptocurrency backend services for identity checks, exchange integrations, commissions, and referrals.
My role: Backend developer for financial platform services
Delivered identity-verification, exchange-integration, and financial workflow services.
Read the case study