Open to opportunities

christian lubosana

@christianlubosana

Message

I build cloud-native backend systems and agentic AI applications.

Philippines

Message

What I'm looking for

I'm looking to build cloud-native backend systems and agentic AI products, with ownership across architecture, DevOps, observability, and reliable delivery.

I've built cloud-native banking systems at ING, IBM, and FFUF Manila, leading legacy migrations, infrastructure automation, and reliable Java, Kotlin, and AWS services. At ING, I established ELK, Prometheus, and Grafana observability that reduced incidents and downtime by roughly 25% in Accounts and Cash Management.

I've also moved into agentic AI, building an LLM-agnostic multi-agent pipeline that creates and sandbox-tests applications, plus a real-time Taglish voice agent for qualifying insurance leads. I enjoy owning DevOps, API design, microservices, code quality, and mentoring developers.

Experience

Work history, roles, and key accomplishments

Current

Fullstack Software Engineer

Current

ING

Nov 2022 - Present (3 years 9 months)

Led strategic migration of legacy applications to the cloud, architecting scalable solutions with Java Spring Boot and Apache Camel. Owned DevOps initiatives, established observability with ELK, Prometheus, and Grafana, reducing incidents by roughly 25%.

Java Spring Boot Apache Camel AWS Terraform Docker ELK Prometheus Grafana DevOps Microservices API Design

Senior Application Developer

IBM

Sep 2021 - Nov 2022 (1 year 2 months)

Designed a highly available, fault-tolerant solution to replace a legacy batch process using Java Spring Boot REST APIs on AWS. Decreased cloud resource deployment time by 70% with Terraform and boosted team productivity by 20% through Salesforce integrations and CI/CD.

Java Spring Boot AWS Terraform Salesforce CI CD REST APIs High Availability Fault Tolerance

Application Developer

FFUF Manila Inc.

Aug 2020 - Aug 2021 (1 year)

Deployed two major REST API projects in Spring Boot (Kotlin and Java), raising client satisfaction metrics. Reduced development provisioning time by 50% by automating Azure cloud resource setup with Terraform and onboarded the team to TDD workflows.

Kotlin Java Spring Boot REST APIs Azure Terraform

Jr. Software Developer

LST Systems and Technologies Management Inc.

Aug 2018 - Jul 2020 (1 year 11 months)

Modernized a legacy Inventory Management System into a maintainable microservice architecture, improving service availability by 20% via Prometheus and Grafana monitoring.

Microservices Prometheus Grafana Monitoring Inventory Management