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Israa Hefni

@israahefni

Message

I build scalable Java microservices and modern full-stack property and eCommerce platforms.

Egypt

Message

What I'm looking for

I'm looking to build production-ready backend and full-stack systems, especially scalable Java microservices, distributed systems, cloud platforms, and modern frontend applications.

At PropStream, I deliver end-to-end features for a property research platform, from distressed-lead search and parcel lookup to property details, saved lists, exports, and user layouts. I also led external Core API integration and resolved a production Parcels API memory issue by optimizing queries and introducing safe data-fetch limits.

Previously at Jumia, I led OMS3 development and migrated 24 modules from a monolith to microservices. Across Boutiqaat, Unilever, and freelance client work, I've built Java and Spring Boot services, event-driven systems, legacy migrations, and production-ready backend solutions.

Experience

Work history, roles, and key accomplishments

Current

Senior Full-Stack Engineer

Current

Propstream

Jan 2025 - Present (1 year 8 months)

Delivered end-to-end features on PropStream's property research platform, including lead search, property details, and saved lists. Led Core API integration for an external partner team and resolved a production OutOfMemory issue in the Parcels API.

Java Spring Boot REST APIs Hibernate AWS New Relic Postman SQL

Current

Freelancer Software Developer

Current

Andela, Upwork, and Toptal

Jan 2021 - Present (5 years 8 months)

Delivered backend-focused solutions using Java and Spring Boot across multiple client projects. Collaborated with distributed teams to design, implement, and deliver production-ready software.

Java Spring Boot Backend Development Distributed Teams

Senior Java Engineer

Jumia

Jan 2021 - Jan 2025 (4 years)

Led development of OMS3, a core order management system, and drove migration from monolithic architecture to microservices using domain-driven design. Improved system reliability and scalability by enhancing communication across distributed systems.

Java Spring Boot Microservices RabbitMQ Docker Jenkins Domain Driven Design

Senior Java Engineer

Boutiqaat

Jan 2020 - Jan 2021 (1 year)

Developed and enhanced backend services for a high-traffic eCommerce platform using Spring Boot. Designed and implemented a flexible rules engine using Elasticsearch and implemented event-driven architecture using Apache Kafka.

Java Spring Boot Elasticsearch Kafka Event Driven Architecture Mentorship

Java Engineer

Unilever

Jan 2018 - Jan 2020 (2 years)

Developed and maintained enterprise sales and stock management systems supporting business operations. Migrated legacy applications from Java 4 / Struts to modern Java versions, improving maintainability and performance.

Java Struts Legacy Migration Enterprise Systems