Senior Java Engineer (Commerce Platform) for Cebu-onsite

gamigo AG; Cebu City; On-site; PHP 1,200,000 - 1,800,000; Full time

Benefits offered by this job

Diverse international team

Room to grow

Casual dress

Government contributions (SSS, PhilPro

Company events

Wellness days

Health insurance

13th Month Pay & Overtime Pay

Job summary

gamigo AG is seeking a Senior Java Engineer to own the core commerce and account management platform powering our US game portfolio. You will lead modernization of a legacy app, ensuring security and reliability across PC and console ecosystems.

Key duties include migrating MSSQL to PostgreSQL, moving services to Google Cloud Platform, implementing SSO with third‑party providers, maintaining API integrations with Steam, PlayStation, Xbox and Nintendo, and working with FreeMarker templates and

Qualifications

• Expert Java proficiency with deep experience in Java development.
• Hands-on experience with Spring (Spring Web Flow) and Apache Struts.
• Strong MSSQL experience; PostgreSQL or migration experience preferred.
• Experience with FreeMarker (.ftl) or similar templating.
• Containerization with Kubernetes (K8s).
• Build automation with Maven and AMQ (ActiveMQ) for messaging.
• Experience with OAuth2, OIDC, or SAML for SSO.
• Experience with payment gateway integrations or e-commerce platforms.
• Migration of legacy monoliths to microservices or modern cloud infrastructures.

Responsibilities

• Lead Platform Modernization to update core libraries for security and performance.
• Architect and execute MSSQL to PostgreSQL database migration.
• Implement new features including SSO integrations with providers.
• Maintain API integrations with Steam, PlayStation, Xbox and Nintendo.
• Maintain backend and frontend with FreeMarker templates and Spring Web Flow.
• Collaborate remotely with US leadership via Jira and GitLab.

Skills

Java

Spring Web Flow

Apache Struts

MSSQL

PostgreSQL

FreeMarker

Kubernetes

Maven

AMQ

OAuth2/OIDC/SAML

Cloud/Security

Tools

GCP

Jira

GitLab

Kubernetes

Maven

ActiveMQ

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 onJavaand migrating it to modern infrastructure and security standards.

About the Role

• 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 fromMSSQL to PostgreSQL.
• Feature Engineering:Implement new critical features, including Single Sign-On (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 usingFreeMarker (.ftl)templates andSpring 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 withJavadevelopment and maintenance.
• Framework Experience:Hands-on experience withSpring(specificallySpring Web Flow) andApache Struts.
• Database Skills:Strong experience withMSSQL; familiarity withPostgreSQLor database migration projects is highly preferred.
• Server-Side Templating:Experience withFreeMarker (.ftl)or similar template engines.
• Containerization & Orchestration:Strong experience deploying and managing applications onKubernetes(K8s).
• Build & Messaging:Proficiency withMavenfor build automation andAMQ(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.

Soft Skills:

• 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.

Benefits

• Join adiverse, international teamof colleagues from over 30 countries, where shared goals and a variety of perspectives make us stronger
• Take on meaningful challenges that come with real responsibility andplenty of room to growin our dynamic environment
• Dress comfortably! We keep things casual here, so you’re free to wear what feels right for you
• Benefit frommandatory government contributions,including SSS, PhilHealth, and Pag-IBIG, for your peace of mind
• Make work more fun withexciting company eventslike our annual Halloween party, Christmas celebration, and team outings
• Recharge with anadditional 3 Wellness daysthroughout the year, next to the statutory vacation days and public holidays
• Enjoyhealth insuranceupon regularization to keep you and your loved ones protected
• Receive your13th Month Pay and Overtime Payas part of a fair and rewarding package