Senior Java Engineer (Cebu On-site)

Gamigo Philippines Inc.; Cebu City; On-site; PHP 1,200,000 - 1,800,000; Full time

Job summary

Gamigo Philippines Inc. seeks a Senior Java Engineer to own the core commerce and account management platform powering our US game portfolio.

You will lead modernization, secure, and migrate a legacy Java-based system to modern infrastructure across platforms (PC, PlayStation, Xbox, Nintendo, Steam). You will work autonomously in your time zone, collaborating with US leadership via Jira and GitLab, implementing SSO with providers and driving MSSQL to PostgreSQL migrations while optimizing

Qualifications

• Expert Java proficiency with deep experience in Java development and maintenance.
• Hands-on Spring Web Flow and Apache Struts experience.
• Strong MSSQL experience; familiarity with PostgreSQL or migration projects.
• Experience with FreeMarker templates (.ftl) or similar templating engines.
• Kubernetes deployment and orchestration experience.
• Maven build automation and ActiveMQ messaging experience.
• OAuth2, OIDC, or SAML for implementing SSO.
• Experience with payment gateway integrations or e-commerce platforms.
• Experience migrating legacy monoliths to microservices or modern cloud infrastructures.
• Self-starter with autonomy and cross-time-zone collaboration.
• Resilience and ability to untangle complex legacy dependencies.

Responsibilities

• Platform modernization: update core libraries and frameworks for security and performance.
• Database & Cloud Migration: migrate services from GCP and MSSQL to PostgreSQL.
• Feature Engineering: implement new critical features, including SSO integrations.
• Platform Integration: maintain API integrations with major gaming platforms (Steam, PlayStation, Xbox, Nintendo).
• Full-Stack Maintenance: backend and frontend using FreeMarker templates and Spring Web Flow.
• Autonomy & Communication: act as technical anchor in your region, collaborate with US leadership via Jira and GitLab.

Skills

Java

Spring Web Flow

Apache Struts

MSSQL

PostgreSQL

FreeMarker

Kubernetes

Maven

ActiveMQ

OAuth2/OIDC/SAML

SSO

APIs integration

Microservices

Tools

Maven

ActiveMQ

FreeMarker

Kubernetes

Jira

GitLab

Job description

We are looking for a Senior Java Engineer to take ownership of the core commerce and account management platform that powers our US game portfolio. This is a critical, high-impact role: you will be maintaining the backbone application that processes transactions and manages player identities across PC, PlayStation, Xbox, Nintendo, and Steam.

You will be the primary engineering lead in your time zone, working autonomously to stabilize, secure, and modernize a complex legacy platform. This role is ideal for an engineer who enjoys high-level problem solving—specifically, taking a robust, established application running on Java and migrating it to modern infrastructure and security standards.

Responsibilities:

Platform Modernization: Lead the effort to update core libraries and frameworks to improve security and performance.

Database & Cloud Migration: Architect and execute the migration of services from Google Cloud Platform (GCP) and assist in the database migration from MSSQL to PostgreSQL.

Feature Engineering: Implement new critical features, including SSO integrations with third-party providers.

Platform Integration: Maintain and improve API integrations with major gaming platforms (Steam, PlayStation, Xbox, Nintendo).

Full-Stack Maintenance: Maintain the backend logic as well as the frontend implementation using FreeMarker (.ftl) templates and Spring Web Flow.

Autonomy & Communication: Work independently as the technical anchor in your region, collaborating remotely with US-based leadership via Jira and GitLab.

Requirements:

Expert Java Proficiency: Deep experience with Java development and maintenance.

Framework Experience: Hands-on experience with Spring (specifically Spring Web Flow) and Apache Struts.

Database Skills: Strong experience with MSSQL; familiarity with PostgreSQL or database migration projects is highly preferred.

Server-Side Templating: Experience with FreeMarker (.ftl) or similar template engines.

Containerization & Orchestration: Strong experience deploying and managing applications on Kubernetes (K8s).

Build & Messaging: Proficiency with Maven for build automation and AMQ (ActiveMQ) for messaging.

Experience with OAuth2, OIDC, or SAML for implementing SSO.

Experience with payment gateway integrations or e-commerce platforms.

Experience migrating legacy monoliths to microservices or modern cloud infrastructures.

Self-Starter: Proven ability to work autonomously with minimal supervision; you are comfortable owning the technical direction of a project in your time zone.

Resilience: You aren't afraid of "spaghetti code."

You enjoy the challenge of untangling complex legacy dependencies to create a stable, modern system.