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yahia saleh

@yahiasaleh

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Senior Full Stack Java developer specializing in cloud-native microservices.

Egypt

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What I'm looking for

I seek roles building cloud-native microservices and distributed systems, with strong emphasis on TDD, performance, and DevOps automation in an Agile team.

I am a Senior Full Stack Java Developer with over 10 years delivering large-scale enterprise solutions across GIS, IoT, supply chain, ERP, fintech, and healthcare domains.

I design and implement cloud-native microservices and distributed systems using Java, Spring, event-driven architectures (Kafka, MQTT, RabbitMQ), and modern cloud platforms (AWS, Azure, OCI).

I focus on system design, performance optimization, TDD, and DevOps-driven delivery — automating infrastructure with Terraform and container orchestration with Docker and Kubernetes to improve resilience and CI/CD reliability.

I have led architectural and code reviews, improved production performance with load testing, and consistently delivered production-grade solutions in Agile environments.

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Experience

Work history, roles, and key accomplishments

Principal Software Engineer

Jumia Egypt

Sep 2021 - Sep 2022 (1 year)

Engineered AWS-based microservices for warehouse, logistics and fulfillment, automated infrastructure with Terraform/Ansible and reduced deployment time via Kubernetes container orchestration.

Spring Kafka RabbitMQ AWS Terraform Ansible Docker Kubernetes Jenkins

Full Stack Java Developer

TomTom

Sep 2018 - Sep 2021 (3 years)

Built scalable GIS microservices and high-throughput data pipelines using Kafka and implemented load testing with Gatling to improve system performance benchmarks for global navigation products.

Java Spring React Kafka

Senior Java Integration Engineer

Vodafone

Jun 2017 - Sep 2018 (1 year 3 months)

Developed fintech microservices for e-payments and digital wallets, built integration flows with Apache Camel/Karaf and achieved full TDD coverage for core financial modules improving transaction performance.

Java Spring Apache Camel Oracle

Senior Java Integration Engineer

Qardio

Jan 2017 - Jun 2017 (5 months)

Developed HIPAA-compliant healthcare microservices and scalable AWS-based backends for IoT patient device data, implementing TDD and CI automation to ensure reliability.

Java Spring Kafka AWS DynamoDB

Senior Backend Developer

Trinity Solutions

Jan 2015 - Jan 2017 (2 years)

Built enterprise ERP/MRP/CRM systems and multi-module microservices for HR, supply chain and CRM, designing REST APIs and integrating UIs while applying TDD and Agile for on-time delivery.

Java Spring PostgreSQL MongoDB

Senior Backend Java Developer

Tata Consultancy Services

Jan 2012 - Jan 2015 (3 years)

Developed SOA/SaaS systems for HR, banking and payments, created reusable enterprise modules for WebLogic/WebSphere and implemented unit and integration tests using TDD.

Java

Senior Java Developer

LexisNexis

Designed and implemented cloud-native microservices and conducted architectural and performance reviews for legal and authentication systems, delivering production-grade integrations using Kafka, MQTT and Kinesis.

Java Spring Kafka MQTT Kubernetes