Senior Java Backend Engineer (Oracle & PL/SQL)

高级 Java 后端开发工程师（Oracle PL/SQL）

职位简介

我们正在招聘一名经验丰富的 Senior Java Backend Developer（Oracle PL/SQL), 负责企业级后端系统开发、数据库业务逻辑设计及系统性能优化。

本职位以 Oracle 数据库开发为核心。 候选人必须具备扎实的 Oracle PL/SQL 开发经验，包括 Stored Procedure、Package、Function、Trigger 开发，以及 SQL 性能优化能力，并能参与大型企业系统开发及生产环境（Production Environment）维护。

如主要开发经验为 MySQL、PostgreSQL 或 SQL Server，而缺乏 Oracle PL/SQL 实战经验，将不符合本职位要求。

必须具备

工作经验

至少 5 年 Java 后端开发经验

至少 3 年 Oracle 数据库开发经验

具备企业级系统（Production Environment）开发、维护及问题排查经验

具备大型系统开发经验

Java 技术能力

熟悉 Java SE / Java EE

扎实的面向对象程式设计（OOP）

熟悉 MVC 架构

熟悉 Spring Framework（Spring Boot / Spring MVC）

熟悉 MyBatis / iBatis

具备 RESTful API 开发经验

具备多线程（Multi-threading）开发经验

Oracle 数据库（核心能力）

必须具备以下实际开发经验：

Oracle Database

PL/SQL

Stored Procedure

Package

Function

Trigger

SQL Performance Tuning（SQL 性能优化）

Query Optimization（SQL 查询优化）

其他技术能力

熟悉 Git 或 SVN

良好的系统分析、故障排查及性能优化能力

优先考虑

具备以下经验者将优先考虑：

OceanBase 数据库开发经验

MongoDB

ClickHouse

大数据平台开发经验

AI 辅助开发工具经验（如 Cursor、Claude Code、GitHub Copilot）

系统整合（System Integration）经验

项目管理经验

带领开发团队经验

主要职责

负责企业级 Java 后端系统设计、开发、测试、部署及维护

开发 Oracle 数据库业务逻辑，包括 PL/SQL、Stored Procedure、Package、Function 及 Trigger

分析及解决系统缺陷、数据库问题及性能瓶颈

优化 SQL 查询及数据库性能，提升系统整体效率

开发及维护 RESTful API，并参与系统整合工作

使用 MongoDB、ClickHouse 及相关技术支持大数据查询及分析

支持生产环境系统，持续优化系统稳定性、性能及可扩展性

与产品、测试及跨部门团队合作，确保项目顺利交付

根据业务需求承担其他相关技术工作

任职资格

计算机科学、信息技术或相关专业本科及以上学历

具备良好的分析及问题解决能力

工作认真细致，责任心强，具备良好的团队合作精神

能独立完成工作，并能适应快节奏开发环境

语言要求

良好的英语书写及沟通能力

具备普通话沟通能力者优先，以支持与华语客户及合作伙伴的日常业务沟通

Senior Java Backend Developer (Oracle PL/SQL)

Position Overview

We are looking for an experienced

Senior Java Backend Developer (Oracle PL/SQL) to design, develop, and maintain enterprise backend applications, database business logic, and high-performance systems.

This role is primarily focused on Oracle database development. The successful candidate must have strong hands-on experience in Oracle PL/SQL development, including Stored Procedures, Packages, Functions, Triggers, and SQL performance tuning. You will also be involved in building scalable backend services, optimizing enterprise applications, and supporting large-scale production systems.

Candidates whose primary experience is limited to MySQL, PostgreSQL, or SQL Server without Oracle PL/SQL development experience are unlikely to be suitable for this role.

Must-Have Requirements

Applicants must meet all of the following requirements.

Experience

Minimum 5 years of Java Backend Development experience.

Minimum 3 years of Oracle Database Development experience.

Experience developing, maintaining, and supporting enterprise applications in a Production Environment.

Experience working on large-scale enterprise systems.

Java Backend Development

Strong proficiency in Java SE / Java EE.

Solid understanding of Object-Oriented Programming (OOP).

Good knowledge of MVC architecture.

Hands-on experience with Spring Framework (Spring Boot / Spring MVC).

Experience with MyBatis / iBatis.

Experience developing RESTful APIs.

Experience with multi-threaded application development.

Oracle Database (Core Requirement)

Hands-on experience with:

Oracle Database

PL/SQL

Stored Procedures

Packages

Functions

Triggers

SQL Performance Tuning

SQL Query Optimization

Other Technical Skills

Experience with Git or SVN version control.

Strong troubleshooting, debugging, and performance optimization skills.

Preferred Qualifications

Candidates with the following experience will have an advantage:

OceanBase database

MongoDB

ClickHouse

Big Data platforms

AI-assisted development tools (e.g. Cursor, Claude Code, GitHub Copilot)

System integration experience

Project management experience

Team leadership experience

Key Responsibilities

Design, develop, test, deploy, and maintain enterprise Java backend applications.

Develop Oracle database business logic using PL/SQL, including Stored Procedures, Packages, Functions, and Triggers.

Analyse, troubleshoot, and resolve application, database, and performance issues.

Optimise SQL queries and database performance to improve system efficiency.

Develop and maintain RESTful APIs and support system integration.

Support large-scale data processing using technologies such as MongoDB and ClickHouse where applicable.

Maintain and optimise production systems to ensure performance, stability, and scalability.

Collaborate with cross-functional teams to deliver high-quality software solutions.

Perform other related technical duties as assigned.

Qualifications

Bachelor's Degree in Computer Science, Information Technology, Software Engineering, or a related discipline.

Strong analytical and problem-solving skills.

Detail-oriented with a strong sense of ownership and accountability.

Able to work independently and collaborate effectively in a team environment.

Language Requirements

Good written and spoken English.

Mandarin is preferred to support communication with Mandarin-speaking clients, users, and business partners.