TP Crafter
Thanaphoom Babparn

Backend Development Excellence

Engineering robust, scalable backend solutions to solve complex business problems with precision and innovation

Services

Requirements Analysis & Backend Development

Translating business requirements into robust backend solutions using Java, Kotlin, Rust, or Go.

Legacy Code Migration

Modernizing outdated systems while ensuring business continuity and improved performance.

Technical Consulting

Expert guidance for entrepreneurs and graduate projects, focusing on architecture, scalability, and best practices.

Technical Documentation & Review

Creating comprehensive documentation, technical reviews, and white papers for your services, including POC validation when needed.

Business Concept POC

Rapidly developing proof-of-concept solutions to validate your business ideas with technical feasibility analysis and practical implementations.

Achievement Highlights

Mission-Critical System Optimization

Enterprise

Re-engineered a personalized asset delivery system, replacing a legacy multi-tenant solution with a streamlined Spring Boot 3.2 (Kotlin) application using coroutines and asynchronous caching. Achieved 8,000 RPS with minimal latency, exceeding peak demand of 7,000 RPS.

Kotlin
Spring Boot
Performance

Large-Scale System Migration

Data Processing

Led the migration of 36 Spark-Scala ETL jobs and 51 data lake tables to a new architecture, achieving a cost reduction of 548,000 yen daily (200 million yen annually) while maintaining data integrity and system performance.

Scala
Spark
ETL

High-Volume Notification System

FinTech

Spearheaded the architecture and development of high-throughput, low-latency push notification services handling 120+ million daily notifications for diverse use cases, including transactional and promotional campaigns.

Java
Microservices
Scalability

Cross-Functional Workflow Automation

Marketing Tech

Designed and implemented a timeline notification delivery system from scratch, including drafting, requirements analysis, and implementation with Kotlin, Spring WebFlux, Cadence Workflow, and Kafka integration. Reduced 100 hours per month for the marketing team and increased annual GMV by 4M JPY.

Kotlin
WebFlux
Kafka

My Approach

01

Analyze

Thorough understanding of business requirements and technical constraints before proposing solutions.

02

Design

Creating robust, scalable architectures with a focus on correctness, performance, and maintainability.

03

Implement

Clean, efficient code using modern best practices and appropriate technologies for each problem.

04

Deliver

Timely execution with clear documentation and knowledge transfer to ensure long-term success.

Technical Expertise

Languages

Java 21+
Kotlin
Rust
Go
TypeScript

Frameworks

Spring Boot
Spring WebFlux
Quarkus
Micronaut
Actix
Axum
Spark

Technologies

Kubernetes
Docker
RDBMS
MongoDB
Redis
Kafka
RabbitMQ
Cloud Native

Working Model

Project-Based Engagement

I work on a project basis rather than hourly, dedicating 4-5 hours daily outside regular working hours to ensure focused and effective delivery.

Availability Hours

Weekdays

8:00 PM - 12:00 AM (ICT/JST)

Weekends

8:00 AM - 10:00 PM (ICT/JST)

* Time zone is ICT or JST, depending on my current location.

Project Approach
  • Clear project scope and deliverables defined upfront
  • Transparent timeline and milestone-based delivery
  • Regular updates and communication throughout the project
  • Knowledge transfer and documentation included in every project

Get In Touch

Ready to discuss your project?

Send an email with your requirements to:

[email protected]

I'll get back to you within 1-2 business days with a response to your inquiry.