Programmer/ Java Developer

Java Full-Stack Developer
Location: Priskila Tower, Cengkareng, Tangerang (on-site)
Employment Type: Full-time
Salary: 8,000,000 - 12,000,000 - Negotiable, based on experience

PT Onmuse Industrial Indonesia (COCOUP Furniture) is looking for a versatile Java Full-Stack Developer who can independently handle system development, production deployment, and day-to-day server operations. The ideal candidate has a strong Java foundation, genuine full-stack ability, and hands-on experience managing production environments and troubleshooting.

Responsibilities

• Design, develop, maintain, and continuously improve business systems, admin panels, and internal company platforms.
• Develop Java-based backend services, including business logic, APIs, and database integration.
• Develop or contribute to frontend features to support end-to-end business workflows.
• Translate business requirements into system architecture, module breakdowns, and implementable technical solutions.
• Independently handle the full development cycle: requirements analysis, database design, backend and frontend development, API integration, testing, and deployment.
• Build and maintain admin panels, business systems, and internal tools.
• Perform feature iteration, performance optimization, code refactoring, and technology upgrades on existing systems.
• Install, configure, deploy, upgrade, and migrate company applications.
• Deploy and configure Java applications, databases, Nginx, Redis, and other common services in Linux environments.
• Build testing and production environments; manage releases, backup, and rollback procedures.
• Perform routine Linux server maintenance, monitoring, log analysis, and troubleshooting.
• Monitor and optimize server, database, and application resources.
• Manage server security, data backup, access control, and basic security protection.
• Diagnose and resolve production incidents quickly to maintain system stability and availability.
• Collaborate with business teams to clarify requirements and translate them into workable technical solutions.
• Create and maintain technical, deployment, API, and operational documentation.
• Identify technical issues, propose improvements, and drive their implementation.

Requirements

• Bachelor's degree in Computer Science, Informatics Engineering, Software Engineering, Information Technology, or related field preferred.
• Minimum 5 years of professional software development experience with the ability to work independently.
• Able to independently take ownership of a core application or module (not limited to backend development only).
• Strong command of Java fundamentals.
• Experience with Spring, Spring Boot, Spring MVC, MyBatis/MyBatis-Plus, or similar mainstream Java frameworks.
• Solid understanding of RESTful APIs, JSON, HTTP/HTTPS, multithreading, caching, transactions, exception handling, and common performance optimization techniques.
• Good coding discipline, architectural understanding, and strong problem-analysis skills.
• Proficient in MySQL, including schema design, SQL writing, indexing, and performance optimization.
• Experience with Redis or similar caching technologies.
• Proficient in HTML, CSS, JavaScript, and at least one modern frontend framework (Vue or React); Vue experience preferred.
• Able to independently build admin panels and business web interfaces, and perform frontend-backend integration.
• Hands-on experience with Linux server installation, configuration, and operations.
• Familiar with Nginx, Tomcat, Docker, and common deployment tools/environments.
• Able to independently deploy, upgrade, migrate, and troubleshoot Java applications in production.
• Able to analyze logs and diagnose CPU, memory, disk, and network issues; practical experience with backup, recovery, and basic server security.

Preferred

• Experience developing ERP, CRM, supply chain, warehouse, finance, enterprise management, or other large-scale business systems.
• Proficient in Docker, Docker Compose, Jenkins, Git, Maven, or related tools.
• Experience with microservices architecture such as Spring Cloud / Spring Cloud Alibaba.
• Experience with cloud platforms such as Alibaba Cloud, Tencent Cloud, or AWS.
• Experience in system architecture design, database architecture, or high-concurrency system optimization.
• Track record of independently taking a system from 0 to 1 and launching it for real-world use.
• Experience with server security, network configuration, SSL certificates, domains, and HTTPS deployment.

Benefits

• Competitive salary based on experience.
• Indonesian statutory benefits (BPJS Kesehatan & BPJS Ketenagakerjaan).
• THR (Tunjangan Hari Raya) as per Indonesian government regulation.
• Paid annual leave and Indonesian public holidays.