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Afes Oktavianus

@afesoktavianus

Software architect at TTM designing enterprise backend systems for sales, finance, and inventory operations.

At TTM, I architected backend systems supporting enterprise operations across sales, finance, and inventory. I improved workflow efficiency by 15% through service optimization and cross-system integration.

At PT Solusi Teknologi Sejati, I designed and implemented ERP architecture using Java and PostgreSQL, reducing processing time by 30%. I also developed secure API integrations and contributed to enterprise systems that improved operational efficiency.

Experience

Work history, roles, and key accomplishments

Software Engineer – ERP Architect

PT Solusi Teknologi Sejati

Jan 2023 - Dec 2025 (2 years 11 months)

Designed and implemented ERP architecture using Java and PostgreSQL, reducing processing time by 30%. Developed secure API integrations involving webhooks, third-party systems, and single sign-on (SSO).

Java PostgreSQL ERP API Integration Webhooks SSO Containerization DevOps

Senior Software Developer / System Architect

TTM Indonesia

Jan 2019 - Dec 2025 (6 years 11 months)

Architected backend systems supporting multi-division enterprise operations across sales, finance, and inventory. Improved workflow efficiency by 15% through service optimization and cross-system integration.

Java Spring Boot PostgreSQL backend architecture System Integration Database Optimization Mentorship Clean Architecture

IT Analyst – Government Financial Systems

East Java Provincial Government

Jan 2019 - Dec 2024 (5 years 11 months)

Improved system uptime by 10% through performance tuning and configuration optimization. Supported regulatory compliance and secure handling of financial data.

Performance Optimization Configuration Optimization Regulatory Compliance Financial Systems

R&D Engineer

PT Orlansoft Data System

Jan 2013 - Dec 2020 (7 years 11 months)

Led the migration of more than 10 desktop applications to scalable web-based systems. Developed a secure cryptocurrency transaction platform with external API integration.

Web Migration Cryptocurrency API Integration System Architecture