Open to opportunities

Israel User

@israeluser7

Message

I build reliable backend payment, ledger, wallet, and enterprise integration systems.

Ethiopia

Message

What I'm looking for

I'm looking to build reliable backend systems involving payments, transactional workflows, APIs, integrations, and production-scale operational challenges.

I've built payment, credit ledger, wallet, and enterprise backend systems across NiteShift Systems, ETTA Solutions, and Ahaz Software Solutions.

At NiteShift Systems, I re-architected a frontend-authoritative credit flow into a backend-controlled ledger and synchronization model, eliminating all credit-related support tickets after release. I also orchestrated Stripe checkout, webhooks, subscriptions, purchase ownership, and content access for digital music products.

At ETTA Solutions, I moved manual tender management and internal transfer processes into structured operational workflows, delivered an ERCA-compliant document signature and verification service, and integrated Mastercard payments, digital wallets, SMS notifications, and legacy CNET data.

I've also automated biometric attendance ingestion and payroll workflows, built HRMS APIs, and developed projects including a FastAPI runtime-flow reconstruction platform and a Spring Boot control plane for self-hosted Odoo deployments.

Experience

Work history, roles, and key accomplishments

Current

Java Backend Engineer

Current

NiteShift Systems

Feb 2024 - Present (2 years 6 months)

Re-architected the credit system from a frontend-authoritative flow into a backend-controlled ledger, eliminating all credit-related support tickets post-release. Centralized credit calculation, mutation rules, and validation inside Spring Boot workflows, and orchestrated Stripe checkout and webhook handling.

Java Spring Boot Spring MVC PostgreSQL Stripe Microservices Webhooks