Software Engineer

Our Clients; Mandaluyong; On-site; PHP 1,339,000 - 2,455,000; Full time

Job summary

Our Clients is seeking a Senior Developer to lead end-to-end design, development, and production support of enterprise apps spanning Java, Oracle DB, and modern front-end interfaces. You will build secure Spring Boot REST APIs, optimize SQL, and guide modernization of legacy systems.

You will collaborate across product, QA, and operations, apply Agile and DevOps practices, and ensure quality through code reviews and CI/CD pipelines.

Qualifications

• 5+ years hands-on software development delivering enterprise applications.

Responsibilities

• Design, develop, and maintain Java applications and RESTful microservices with Spring Boot.
• Optimize Oracle SQL queries and data models for performance.
• Develop frontend interfaces with React.js/Next.js and ensure API security (OAuth2, JWT).
• Support legacy modernization, refactor code, and drive platform upgrades.

Skills

Java

Spring Boot

React.js

Next.js

SQL optimization

OAuth2

JWT

CI/CD

Agile

DevOps

REST APIs

Tools

Oracle APEX

Git

Job description

Our client, a prominent technology services enterprise, is seeking a Senior Developer. This role is responsible for the end-to-end design, development, enhancement, and production support of enterprise applications spanning full-stack web architectures, core Java microservices, and high-performance Oracle Database environments. The developer will work across the full application lifecycle—optimizing complex SQL/database logic, building secure Spring Boot REST APIs, refactoring modern React/Next.js interfaces, and driving legacy platform modernization initiatives.

Key Responsibilities

Backend Engineering & Database Optimization

• Java & Microservices: Design, develop, and maintain robust Java applications and RESTful microservices using Spring Boot, implementing business logic and secure service-layer integrations.
• Oracle Database Engineering: Write, analyze, and optimize complex Oracle SQL queries, joins, subqueries, aggregations, and data-intensive batch operations; maintain relational data models and database objects.
• API Governance & Security: Develop and consume RESTful APIs, implementing modern authentication patterns (OAuth2, JWT) and seamless third-party platform integrations.

Frontend Engineering & Legacy Application Modernization

• Modern Web Development: Develop and maintain responsive frontend interfaces utilizing React.js, Next.js, and modern JavaScript frameworks.
• Oracle APEX & Platform Support: Support and develop applications built on Oracle APEX, ensuring operational stability and platform alignment.
• Legacy Refactoring: Analyze legacy codebases (including legacy testing, measurement, and CRM/Salesforce-integrated systems), systematically reducing technical debt and executing platform modernization strategies.

Delivery, Operations & Quality Assurance

• Application Lifecycle Support: Drive hands‑on coding, debugging, root‑cause analysis, and production incident resolution across all application layers (frontend, backend, and database).
• Agile & DevOps Practice: Participate in Agile sprint cycles, perform code reviews, maintain version control strategies, and leverage CI/CD pipelines for automated testing and continuous deployment.

Requirements

Education & Professional Experience

• Professional Tenure: Minimum of 5+ years of hands‑on software development experience delivering enterprise applications across Java and Oracle Database environments.
• Full Lifecycle Expertise: Proven track record spanning application design, hands‑on coding, continuous delivery, and Tier‑3 operational support.

Technical Competencies

• Backend Stack: Deep expertise in Java and Spring Boot framework for building scalable REST APIs and backend services.
• Database Mastery: Advanced proficiency in Oracle Database, SQL optimization, data modeling, and application‑to‑database performance tuning.
• Frontend Frameworks: Hands‑on development experience with React.js, Next.js, and modern JavaScript/TypeScript libraries.
• Low‑Code & Integration: Direct experience or working familiarity with Oracle APEX application development and maintenance.
• Security & Integration: Experience with API authentication protocols (OAuth2, JWT) and integration with enterprise platforms (e.g., Salesforce, legacy measurement systems).
• DevOps & Agile: Working knowledge of CI/CD delivery pipelines, Git branching strategies, automated testing, and Agile/Scrum delivery frameworks.