Senior Java Backend Developer

Perfectvisionksa; As Sudiyah; On-site; OMR 3,100 - 4,800; Full time

Benefits offered by this job

Competitive salary

Collaborative environment

Cutting-edge IoT platform

Latest IoT tech exposure

Job summary

Perfect Vision in Cairo, Egypt, seeks an experienced Senior Java Backend Developer to join a high-concurrency IoT PaaS platform. You will design and lead scalable backend systems for data collection, processing, and analysis while mentoring juniors and collaborating across teams.

The role emphasizes architecture leadership, code quality, and cutting-edge IoT technologies in a fast-paced enterprise setting.

Qualifications

• Bachelor's degree in Computer Science, Software Engineering, or related field, or equivalent experience.
• 7+ years of professional Java backend development experience.
• Proven track record of building high-concurrency distributed systems.
• Experience working in agile development environments.
• Experience in a senior or lead developer role.

Responsibilities

• Develop and maintain high-concurrency IoT PaaS services using SpringBoot framework.
• Design and implement IoT data collection endpoints for various communication protocols (TCP, UDP, MQTT, HTTP).
• Build scalable data consumption and analysis endpoints for real-time IoT data processing.
• Create robust data push endpoints and business-side APIs for seamless integration.
• Develop audio/video alarm file services and streaming media components.
• Design loosely coupled architecture with protocol-specific device access components.
• Write protocol decoders following predefined rules for new IoT device integrations.
• Implement webhook and OpenAPI methods for third-party platform integration.
• Optimize system performance for high-throughput IoT data scenarios.
• Conduct comprehensive code reviews and provide technical mentorship.
• Collaborate with frontend developers, DevOps engineers, and product managers.
• Lead backend architecture decisions and technical initiatives.
• Implement comprehensive testing strategies and monitoring solutions.
• Champion development best practices and coding standards.
• Participate in agile development processes and sprint planning.

Skills

Java (8+)

Spring ecosystem

Netty

RabbitMQ & Kafka

Redis

MongoDB

MySQL

IoT protocols

RESTful API & OpenAPI

Git & CI/CD

Education

Bachelor's degree in Computer Science or related field

Tools

Docker

Kubernetes

Linux/Ubuntu

Elasticsearch

OpenAPI tooling

Job description

Location: Egypt - Cairo
Job Type: Full Time

Position Overview

We are seeking an experienced Senior JavaBackend Developer to join our dynamic engineering team working on ahigh-concurrency IoT PaaS platform. This role requires a technical leader whocan design and develop scalable backend systems for IoT data collection,processing, and analysis while mentoring junior developers and collaboratingcross-functionally to deliver robust enterprise solutions.

Key Responsibilities

• Develop and maintain high-concurrency IoT PaaS services usingSpringBoot framework
• Design and implement IoT data collection endpoints for variouscommunication protocols (TCP, UDP, MQTT, HTTP)
• Build scalable data consumption and analysis endpoints forreal-time IoT data processing
• Create robust data push endpoints and business-side APIs forseamless integration
• Develop audio/video alarm file services and streaming mediacomponents
• Design loosely coupled architecture with protocol-specificdevice access components
• Write protocol decoders following predefined rules for new IoTdevice integrations
• Implement webhook and OpenAPI methods for third-party platformintegration
• Optimize system performance for high-throughput IoT datascenarios
• Conduct comprehensive code reviews and provide technicalmentorship
• Collaborate with frontend developers, DevOps engineers, andproduct managers
• Lead backend architecture decisions and technical initiatives
• Implement comprehensive testing strategies and monitoringsolutions
• Champion development best practices and coding standards
• Participate in agile development processes and sprint planning

Required Qualifications

Experience & Education

• Bachelor's degree in Computer Science, Software Engineering, orrelated field, or equivalent experience
• 7+ years of professional Java backend development experience
• Proven track record of building high-concurrency distributedsystems
• Experience working in agile development environments
• Experience in a senior or lead developer role

Technical Skills

• Expert proficiency in Java (Java 8+) and Spring ecosystem(SpringBoot, Spring MVC, Spring Security)
• Strong experience with Netty framework for network programmingand protocol handling
• Proficiency with message queue systems (RabbitMQ, Apache Kafka)
• Experience with Redis for caching and session management
• Knowledge of MongoDB for document-based data storage
• Proficiency with MySQL and relational database design
• Understanding of IoT communication protocols (TCP, UDP, MQTT,HTTP, WebSocket)
• Experience with RESTful API design and OpenAPI specifications
• Knowledge of webhook implementation and third-party systemintegration
• Familiarity with streaming media protocols and audio/videoprocessing
• Experience with version control systems (Git) and collaborativeworkflows
• Understanding of microservices architecture and distributedsystems

Core Competencies

• Exceptional problem-solving abilities and analytical thinking
• Strong attention to detail and commitment to code quality
• Excellent communication and mentorship skills
• Ability to translate business requirements into scalabletechnical solutions
• Strong collaborative mindset and cross-functional teamwork
• Experience with high-concurrency and high-availability systemdesign

Preferred Qualifications

• Experience with Docker and Kubernetes for containerizeddeployments
• Knowledge of Linux/Ubuntu server administration and deployment
• Familiarity with Apache Kafka or other distributed streamingplatforms
• Experience with Elasticsearch for log analysis and searchcapabilities
• Knowledge of time-series databases (InfluxDB, TimescaleDB)
• Understanding of IoT device management and protocol translation
• Experience with real-time data processing frameworks (ApacheStorm, Apache Flink)
• Familiarity with monitoring tools (Prometheus, Grafana, ELKstack)
• Knowledge of security best practices for IoT systems
• Experience with CI/CD pipelines and DevOps practices
• Contribution to open-source Java projects
• Experience with cross-platform deployment scenarios

What We Offer

• Competitive salary package
• Collaborative and innovative work environment
• Opportunity to work on cutting-edge IoT platform servingmillions of devices
• Exposure to latest technologies in IoT and distributed systems

Inclusion & Accessibility

At Perfect Vision, we are committed to building a diverse and inclusive workplace. We provide a fully accessible environment and welcome applications from individuals with motor disabilities. We are dedicated to providing the necessary accommodations to ensure all our employees can perform their roles comfortably and effectively.