Senior Java Engineer at Stivlon Consulting

Job Summary

• We are looking for an experienced Senior Java Engineer to join our client's engineering team in Abuja.
• The successful candidate will be responsible for designing, developing, and maintaining scalable, secure, and high-performance backend systems using Java and related technologies.
• You will play a key role in system architecture, code quality, and mentoring junior engineers while collaborating closely with cross-functional teams.

Key Responsibilities

• Design, develop, and maintain robust backend applications using Java
• Build and scale distributed systems, APIs, and microservices
• Lead architectural decisions and contribute to system design discussions
• Write clean, maintainable, and well-tested code following best practices
• Optimize application performance, scalability, and reliability
• Conduct code reviews and enforce engineering standards
• Mentor junior and mid-level engineers, providing technical guidance
• Collaborate with product managers, frontend engineers, QA, and DevOps teams
• Integrate databases, message queues, and third-party services
• Troubleshoot, debug, and resolve complex production issues
• Contribute to technical documentation and system diagrams.

Required Qualifications & Experience

• Bachelor’s degree in Computer Science, Engineering, or a related field (or equivalent experience)
• 6+ years of professional software development experience
• Strong proficiency in Java (Java 8+) and object-oriented programming
• Extensive experience with Spring Boot, Spring MVC, and Spring Security
• Solid understanding of microservices architecture and RESTful APIs
• Experience with relational databases (PostgreSQL, MySQL, Oracle)
• Knowledge of ORM frameworks such as Hibernate/JPA
• Experience with multithreading, concurrency, and JVM performance tuning
• Familiarity with build tools such as Maven or Gradle
• Proficiency with Git and collaborative development workflows.

Preferred / Nice-to-Have Skills:

• Experience with Kafka, RabbitMQ, or other message brokers
• Exposure to cloud platforms (AWS, GCP, Azure)
• Experience with containerization and orchestration tools (Docker, Kubernetes)
• Knowledge of CI/CD pipelines and DevOps practices
• Familiarity with reactive programming (Spring WebFlux, Reactor)
• Experience in FinTech, enterprise systems, or high-traffic applications.

Soft Skills & Competencies:

• Strong problem-solving and analytical abilities
• Excellent communication and teamwork skills
• Ability to work independently and take ownership of projects
• Leadership mindset with experience mentoring engineers
• High attention to detail and commitment to quality.