Tristan Mahinay
Tech Community Leader, Innovator & Open-source Committer
Building enterprise applications and contributing to open-source projects. Passionate about Java, Spring Boot, and cloud technologies.
About Me
Tech Community Leader & Open-source Committer
Tristan Mahinay is a results-driven technical leader specializing in enterprise software development, API design, and microservices. With deep expertise in modern Java and cloud technologies, he has successfully led end-to-end projects, driving innovation, efficiency, and cost savings for businesses.
A recognized Full Stack Capability Leader, Innovations Leader and mentor, Tristan is passionate about building strong developer communities, leading the Java User Group Philippines and Apache Kafka Manila, and sharing insights through blogging and industry discussions. His proven track record of delivering high-impact solutions makes him a valuable asset in driving technology transformation.
Career at a Glance
Experience
August 2021 – Present
Tech Lead & Solutions Architect
IBM
Leading hybrid cloud transformation and client management in the insurance industry. Architecting modular batch applications and Generative AI solutions.
- Designed Modular architecture for batch applications saving the client $170,000+ annually with 600% cost savings.
- Proposed Generative AI Architectures for Insurance Legal/Member Marketing offering 95% effort reduction.
- Pioneered transformation of batch workloads to Containerized Architecture saving $8,000 monthly.
- Reduced processing time from 2 hours to 20-30 minutes using Spring Batch and Kafka.
- Designed Legal Management UI/services with <100ms API response and <3s page load.
Oct 2020 – Aug 2021
Senior Software Engineer
Novare
Modernized applications for a major Philippine bank, focusing on greenfield/brownfield development of financial products.
- Built a universal transaction limit microservice for all financial products.
- Designed REST Architecture achieving < 100ms response time.
- Enhanced Payment Gateway to resolve timeout issues across financial channels.
July 2018 – Oct 2020
Associate Applications Engineer
Oracle
Developed utility SaaS products for energy and water customers, handling core billing implementation.
- Optimized SQL statement run time from seconds to milliseconds.
- Fixed high-severity bugs ensuring customers met go-live dates.
- Created responsive accessible UI using JavaScript, jQuery, and Oracle Extensions.
- Developed an automated bug portal to simplify the patching process.
Skills & Technologies
Technologies
- Java
- JavaScript
- TypeScript
- Shell
- Python
- Go
- Kotlin
- Groovy
- SQL
Frameworks & Libraries
- Spring Boot
- Spring Batch
- Spring Kafka
- Quarkus
- ReactJS
- Jakarta EE
- Hilla
Cloud & DevOps
- AWS
- Red Hat OpenShift
- GCP
- Kubernetes
- Helm
- Docker
- Jenkins
- GitHub Actions
Databases
- Oracle
- Microsoft SQL
- MySQL
- MongoDB
- PostgreSQL
- Redis
AI & Data
- IBM watsonx.ai
- Spring AI
- InstructLab
- Kafka
- Elasticsearch
Tools & Testing
- Git
- Maven
- Gradle
- JUnit
- Mockito
- Postman
- JMeter
- Datadog
Systems Design
- Microservices
- Event-driven
- Batch Processing
- Reactive Programming
- Distributed Systems
Engagements & Community
Java User Group Philippines
Community Leader2023 - PresentLeading the largest Java community in the Philippines. Organizing meetups, workshops, and conferences to foster knowledge sharing enabling Java developers in the country.
Apache Kafka Manila
Community Organizer2024 - PresentCo-organizing meetups for Apache Kafka enthusiasts in Manila. Facilitating discussions on event-driven architecture and streaming technologies.
Confluent Community Catalyst
Awardee2025Recognized as a Confluent Community Catalyst for significant contributions to the Apache Kafka and Confluent community.
PH100 2025
Honoree2025Recognized as one of the top 100 professionals in the Philippines by Stellar PH.
Technical Speaker
Conference SpeakerVariousDelivering technical talks at international and local conferences on topics including Java, Cloud-Native, AI, and Software Architecture.