Senior Software Engineer

Core42; Dubai; On-site; AED 350,000 - 500,000; Full time

Benefits offered by this job

Yearly bonus

Discount cards (Esaad/Fazaa)

Premium family insurance

Learning platforms

Job summary

Core42, a leader in AI-powered cloud infrastructure, seeks a Senior Java Developer to design and build high-scale backend platforms and microservices. You will work with OpenStack components (Nova/Neutron/Cinder) and cloud-native patterns to deliver resilient systems.

You will lead technical initiatives, mentor engineers, and collaborate across teams while ensuring secure, scalable services with Spring Boot 3, Java 17+, and CI/CD practices.

Qualifications

• 7+ years backend development with Java 17+ and Spring Boot 3.x.
• Proficiency in Spring Security, RESTful API design, and distributed systems.
• Hands-on experience with Nova, Neutron, and Cinder in OpenStack.
• Spring Data JPA/Hibernate experience.
• PostgreSQL and Redis expertise.
• JUnit 5, Mockito, and Testcontainers for testing.
• Docker, Kubernetes, containerized deployments.
• Gradle or Maven build tools.
• Knowledge of Keystone, Glance, and Octavia.
• Strong communication and collaboration skills.

Responsibilities

• IaaS microservices development for Compute, Networking, and Storage.
• OpenStack API integrations using Spring Cloud OpenFeign and REST clients.
• Optimize backend performance: latency, memory usage, and threading in high-throughput systems.
• Implement security using Spring Security and Keystone.
• Participate in CI/CD pipelines, containers, and Kubernetes deployments.
• Build distributed systems with Java 17+ and Spring Boot 3.x for infrastructure management planes.
• Design RESTful APIs with OpenAPI/Swagger and pagination.
• Model data in PostgreSQL and use Spring Data JPA/Hibernate.
• Lead testing with JUnit 5, Mockito, and Testcontainers.
• Mentor engineers and drive best practices in Gradle/Maven.

Skills

Java 17+

Spring Boot 3

OpenStack Nova

OpenStack Neutron

OpenStack Cinder

Spring Cloud Feign

PostgreSQL

Redis

JUnit 5

Mockito

Testcontainers

Docker

Kubernetes

REST API

OpenAPI/Swagger

Gradle

Maven

Keystone

Glance

Octavia

Tools

Docker

Kubernetes

Job description

Job Description:

Senior Software Engineer 8/13/26

About Us

Core42, a leader in AI-powered cloud and digital infrastructure, is driving transformative technology solutions globally. Leveraging advanced resources and partnerships, Core42 empowers clients to harness sovereign AI infrastructure, especially in sectors with stringent regulatory needs. With a mission to redefine digital transformation, we combine sovereign capabilities with scalable, high-performance compute infrastructure, positioning itself at the forefront of AI innovation in the Middle East and beyond.

The opportunity

We are looking for a highly skilled Senior Java Developer with deep expertise in Java, Spring Frameworks, and cloud-native distributed systems. The ideal candidate will design and build high-scale backend platforms, microservices, and APIs like those used in cloud hyperscalers.

You will work on high-performance, multi-threaded, resilient systems, collaborate across teams, and provide technical leadership to drive engineering excellence.

Your Key Responsibilities

• IaaS Microservices Development: Design and develop scalable backend services for core IaaS domains, including Compute (Nova), Networking (Neutron), and Storage (Cinder).
• OpenStack API Integration: Implement robust, type-safe integrations with OpenStack services using Spring Cloud OpenFeign and REST/HTTPS clients.
• Performance Optimization: Take explicit ownership of backend performance, analyzing and optimizing latency, memory usage, and thread management in high-throughput systems.
• Security Best Practices: Implement and enforce security standards, including secure coding, data encryption, and robust identity management via Spring Security and Keystone.
• CI/CD & DevOps: Actively participate in the development and maintenance of CI/CD pipelines to support automated testing, containerization, and Kubernetes deployments.
• Backend Architecture: Build distributed systems using Java 17+ and Spring Boot 3.x, ensuring high availability and resilience for infrastructure management planes.
• API Design & Documentation: Design and maintain RESTful APIs with a focus on clean OpenAPI/Swagger documentation, efficient pagination, and standard HTTP status codes.
• Data Modeling: Design efficient schemas in PostgreSQL and implement high-performance queries using Spring Data JPA/Hibernate.
• Testing & Quality Assurance: Lead the development of comprehensive test suites using JUnit 5, Mockito, and Testcontainers to simulate real-world infrastructure scenarios.
• Technical Leadership: Participate in code reviews, mentor junior engineers, and drive best practices in Gradle/Maven build management.

What We’re Looking For

• Required skills / qualifications
• 7+ years of backend development experience with a mastery of Java 17+ and Spring Boot 3.x.
• Expert Proficiency: Spring Security, RESTful API design, and distributed system architecture.
• OpenStack Expertise: Hands-on experience with Nova (Server CRUD, Flavors), Neutron (Networks, Security Groups), and Cinder (Volumes, Snapshots).
• Advanced Framework Knowledge: Spring Data JPA, Spring Cloud, and Feign for service-to-service communication.
• Database Mastery: Deep experience with PostgreSQL (query optimization) and Redis (caching strategies).
• Testing Excellence: Advanced skills in JUnit 5, Mockito, and specifically Testcontainers for integration testing.
• Cloud Native Foundations: Strong understanding of Docker, Kubernetes, and containerized deployments.
• Build Tools: Intermediate to advanced proficiency in Gradle or Maven.
• Core Concepts: Solid understanding of Keystone (Projects/Tokens), Glance (Images), and Octavia (Load Balancers).
• Soft Skills: Excellent communication and collaboration skills for working in highly technical cross-functional environments.
• Preferred skills / qualifications
• Platform Expertise: Proven experience building platform-level systems or services at a hyperscaler scale (e.g., AWS, Azure, GCP).
• Reactive Programming: Advanced experience with Project Reactor and WebFlux for developing high-concurrency, non-blocking infrastructure gateways.
• Infrastructure as Code (IaC): Proficiency with Terraform, Ansible, ARM, or Bicep to automate and manage underlying OpenStack environments.
• Cloud Architecture: Exposure to hybrid or multi-cloud architectures and cross-cloud connectivity strategies.
• Industry Certifications: Relevant certifications such as Java (OCP), Kubernetes (CKA/CKAD), or Certified OpenStack Administrator (COA).
• Aware about the Resilience Patterns(Circuit Breaker, Bulkhead, Asyn Communication)

What Working At Core42 Offers

With a diverse team of 1,100+ employees from 68 nationalities, we foster an inclusive, innovative and collaborative environment. At Core42, we foster a culture grounded in trust, accountability and high performance. We are united by our values: Grit, where we overcome challenges with resilience and determination, Passion, which drives us to pursue excellence in everything we do, and Impact, as we aim to inspire progress and create meaningful change. Our team members thrive in an environment where each person’s contributions propel us forward, and together, we commit to achieving extraordinary results.

• Competitive Salary: We offer an attractive salary package based on your skills and experience
• Yearly Bonus: In recognition of your contributions, you will receive a performance-based annual bonus
• Exclusive Discount Cards: Access special benefits with Esaad and Fazaa cards, offering discounts across a wide range of services
• Premium Family Insurance: We provide comprehensive health coverage, including dental, vision and life insurance, ensuring the well-being of you and your family
• Learning & Development: We offer access to top-tier learning platforms to help you grow your career. Learn at your own pace with unlimited access to premium courses.

Requirements: