Senior Java Developer (Redis & PostgreSQL) | Aventus Global | Dubai

Aventus Global; Dubai; On-site; AED 480,000 - 720,000; Full time

Job summary

Aventus Global seeks an experienced Senior Java Developer in Dubai to own and scale a Java/Spring Boot microservices stack. You will optimize PostgreSQL designs, implement Redis caching strategies, and drive low-latency, fault-tolerant backend systems in a high-throughput enterprise setting.

Ideal candidates have 8+ years of Java/Spring Boot experience, strong database tuning skills, and immediate UAE-based availability for an onsite 6-month contract in Dubai.

Qualifications

• Bachelor’s or Master’s degree in Computer Science or related field.
• 8+ years of hands-on Java/Spring Boot development experience.
• Deep PostgreSQL database administration and query tuning.
• Extensive Redis caching implementation experience.
• Proven ability to scale live production systems and reduce DB load.
• Strong RCA, debugging, and testing discipline.
• Experience with CI/CD pipelines and Agile workflows.
• Immediate onsite availability in Dubai, UAE

Responsibilities

• Design, build and deploy Java/Spring Boot microservices in production.
• Optimize PostgreSQL schema, indexing and complex queries.
• Develop and enforce Redis caching strategies and TTL policies.
• Lead performance improvements and scaling for high-traffic systems.
• Perform RCA for operational incidents and drive fixes.
• Create robust RESTful APIs with high concurrency and low latency.
• Write unit and integration tests and maintain CI/CD pipelines.
• Collaborate with architects, DevOps, and product teams in Dubai

Skills

Java

Spring Boot

PostgreSQL

Redis caching

Root-cause analysis (RCA)

RESTful API design

CI/CD pipelines

Unit/integration testing

Agile methodologies

Production debugging

Education

Bachelor’s or Master’s degree in Computer Science/Software Engineering/Information Technology

Tools

Docker

Kubernetes

Grafana

Datadog

Prometheus

Job description

Position Summary

Aventus Global is seeking an experienced, highly technical, and accomplished Senior Java Developer with a strong specialization in Redis caching and PostgreSQL database optimization to join our client delivery team on an onsite, 6-month contract basis with immediate start in Dubai, UAE (candidates must be UAE-based immediate joiners). In this specialized enterprise backend engineering role, you will spearhead maintaining and scaling a live Java/Spring Boot microservices architecture, delivering critical bug fixes, new features, and substantial performance improvements as data volumes rapidly grow. You will work closely with cross-functional software architects, data engineers, and product squads to ensure ultra-low latency and fault-tolerant system reliability. Ideal candidates bring a robust academic degree in computer science or engineering, deep practical mastery of enterprise Java, Spring Boot, distributed caching, and immediate availability for deployment in Dubai.

Detailed Job Description

As a Senior Java Developer at Aventus Global in Dubai, UAE, you will take full ownership of designing, building, optimizing, and scaling production microservices within a high-throughput enterprise environment. Your day-to-day responsibilities encompass developing clean, maintainable backend code in Java and Spring Boot, optimizing PostgreSQL schema designs, indexing, and complex query tuning, and implementing robust Redis caching strategies (TTL management, eviction policies, DB load reduction). You will lead production debugging sessions, conduct root-cause analysis (RCA) for operational incidents, execute rigorous unit and integration testing, and maintain automated CI/CD deployment pipelines. Working in a fast-paced onsite consulting environment offering a 6-month contract with immediate start, you will drive mission-critical backend performance and scalability improvements.

Key Responsibilities

• Design, develop, test, and deploy enterprise-grade Java and Spring Boot microservices within live production environments.
• Architect, implement, and fine-tune PostgreSQL databases, advanced schema designs, indexing strategies, and slow query tuning.
• Develop and execute robust Redis caching strategies, TTL management, eviction policies, and cache invalidation patterns to minimize database load.
• Lead performance optimization and scaling initiatives on live high-traffic systems with demonstrable, measurable results.
• Perform rigorous production debugging, fault isolation, and comprehensive root-cause analysis (RCA) for complex backend anomalies.
• Build and secure RESTful APIs, ensuring high concurrency, low latency, and adherence to enterprise security standards.
• Write comprehensive unit and integration tests using JUnit and Mockito to maintain high code coverage and software quality.
• Collaborate closely with cross-functional software architects, DevOps engineers, and product stakeholders in Dubai, UAE.
• Participate in Agile sprint planning, code reviews, technical spike investigations, and architectural refactoring sessions.
• Ensure strict adherence to CI/CD deployment automation, Git version control best practices, and enterprise coding standards.

Required Qualifications & Skills

• Bachelor’s or Master’s degree in Computer Science, Software Engineering, Information Technology, or a related technical field.
• Minimum 8+ years of professional hands-on software development experience specializing in Java and Spring Boot microservices.
• Deep specialized expertise in PostgreSQL database administration, advanced schema design, indexing, and complex query performance tuning.
• Extensive practical experience implementing Redis caching architectures, TTL/eviction tuning, and database load reduction.
• Proven track record of scaling live production systems and achieving measurable performance optimization results.
• Strong troubleshooting proficiency in production debugging and structured root-cause analysis (RCA).
• Solid working knowledge of RESTful API design, unit/integration testing frameworks, CI/CD pipelines, and Agile methodologies.
• Professional availability for immediate onsite contract employment in Dubai, UAE (UAE-based immediate joiners only; Email: [e-mail]).

Nice-to-Have Skills

• Hands-on experience with asynchronous messaging brokers such as Apache Kafka or RabbitMQ.
• Containerization and orchestration experience using Docker and Kubernetes.
• Familiarity with observability platforms including Grafana, Datadog, Prometheus, and distributed tracing tools.
• Prior working experience in fintech, e-commerce, banking, or fast-paced technology consulting enterprises in the GCC region.
• Advanced background in reactive programming (Spring WebFlux) and cloud-native deployments on AWS or Azure.

Salary & Contract Details

• Salary/Rate: Competitive and commensurate with senior engineering experience
• Deadline: Open until filled
• Notice Period: Immediate Start Required (UAE-based immediate joiners)
• Contract Duration: 6-Month Contract (Onsite in Dubai, UAE)

Recruitment Pro Tip

When applying for senior Java backend roles focusing on high-volume scaling, ensure your resume explicitly highlights your measurable performance optimization metrics, Redis TTL/eviction strategies, and PostgreSQL query tuning expertise.