PRINCIPAL BACKEND DEVELOPER
PT. LOGIKA SARANA TEKNOLOGI
01.2026 - Current
SONY AMIN GUMELAR
TECHNICAL CONSULTANT ANALYST
Jakarta,JK
Summary
Experienced Senior Back-End Developer & Project Manager specializing in designing and building reliable, efficient, and scalable systems for high-traffic enterprise applications. Proven expertise in managing project budgets, timelines, and cross-functional teams while ensuring ISO 27001 compliance and UU PDP adherence. Combining strong analytical thinking with deep technical knowledge in microservices architecture, I deliver solution-oriented outcomes that drive measurable business impact. Actively leverage AI-powered tools to boost productivity by 30%, optimize system efficiency, and ensure deployment accuracy.
Skills
PROJECT & PROGRAM MANAGEMENT
✓ Agile/Scrum/Kanban & Waterfall Methodologies Sprint Planning & Execution
✓ Budget Planning & Cost Control Resource Allocation & Capacity Planning
✓ Risk Management & Mitigation Stakeholder Communication & Alignment
✓ SLA Management & Performance Monitoring Vendor Management & Procurement
✓ Strategic Planning & Roadmap Development Quality Assurance (SIT/UAT)
✓ Change Management & Process Improvement Project Portfolio Management
TECHNICAL LEADERSHIP & ARCHITECTURE
✓ Microservices Architecture & Distributed Systems System Design & Integration
✓ RESTful API Development & Optimization Database Architecture (SQL/NoSQL)
✓ Database Optimization & Performance Tuning CI/CD Pipeline Management
✓ Cloud Infrastructure & Scalability Message Queuing & Event-Driven Architecture
✓ ELK Stack Implementation Performance Engineering & Monitoring
✓ Code Review & Quality Standards High-Availability System Design
BUSINESS ANALYSIS & CONSULTING
✓ Requirements Analysis (BRD/FSD/TSD/UML) Technical-Business Translation
✓ Gap Analysis & Solution Architecture Process Flow Design & Optimization
✓ Cost-Benefit Analysis & ROI Calculation Root Cause Analysis (RCA)
✓ Incident Management & Post-Mortem Reports Continuous Improvement Initiatives
✓ Documentation & Knowledge Management
SECURITY & COMPLIANCE
✓ ISO 27001 Implementation & Auditing UU PDP & GDPR Compliance
✓ Audit Trail Systems & Security Logging Data Protection & Encryption
✓ Vulnerability Assessment & Risk Management Incident Response & Disaster Recovery
✓ Access Control & Authentication Security Standards Enforcement
LEADERSHIP & COMMUNICATION
✓ Cross-Functional Team Leadership (3-10 members) Mentoring & Coaching Developers
✓ Conflict Resolution & Mediation Executive Presentation & Reporting
✓ Negotiation & Stakeholder Management Remote & Distributed Team Collaboration
✓ Performance Evaluation & Talent Development
TECHNICAL STACK
Languages: PHP JavaScript/TypeScript Go Python Java SQL Java C
Databases: MySQL MsSQL Oracle PostgreSQL MongoDB Redis Elasticsearch Meilisearch Opensearch
PM Tools: Jira Confluence Trello Notion Miro Open Project
DevOps: Git Docker Jenkins GitLab/Github CI SonarQube ESLint PHPStan
Monitoring: ELK Stack Grafana Prometheus OTel (Jaeger)
Frameworks: Laravel CakePHP Zend Nodejs Express Fastify NestJS FastAPI Flask Springboot Echo
Testing: PHPUnit, Jest, Playwright, Postman
Timeline
SENIOR BACKEND DEVELOPER
ASSET DATA IO SDN BHD
06.2022 - 11.2022
SENIOR BACKEND DEVELOPER
PT. LOGIKA SARANA TEKNOLOGI
07.2018 - 12.2025
S.T - TEKNIK INFORMATIKA
UNIVERSITAS AHMAD DAHLAN
09.2014 - 05.2018
Work History
PRINCIPAL BACKEND DEVELOPER
PT. LOGIKA SARANA TEKNOLOGI
01.2026 - Current
- Served as the primary Technical & Business Consultant, analyzing client operational challenges and delivering tailored technical-business solutions such as feature enhancements and process optimization.
- Designed ERDs, documented database schemas, and contributed to microservices architecture planning.
- Applied the Outbox Pattern and CQRS to ensure data consistency, audit logging, and support Event Sourcing.
- Utilized the ELK stack to enhance search performance and reduce primary DB load.
- Led ISO 27001 compliance implementation including audit trail systems, data protection mechanisms aligned with UU PDP, and security logging.
- Implemented SonarQube standards, reducing code bugs to below 5%.
- Established and enforced SOPs for deployment processes, code review workflows, and incident response procedures, reducing deployment errors by 60% and improving MTTR (Mean Time To Recovery).
- Supervised and mentored a team of 3-8 developers, conducting technical guidance sessions, architecture reviews, and performance evaluations that improved team velocity by 50%.
- Built reusable boilerplates and automation tools, boosting team productivity by 30%.
- Conducted Root Cause Analysis (RCA) and produced detailed Incident Reports for long-term solutions.
- Led multiple small-scale projects within enterprise initiatives, ensuring alignment and on-time delivery.
SENIOR BACKEND DEVELOPER
PT. LOGIKA SARANA TEKNOLOGI
07.2018 - 12.2025
- Collaborated with other teams on security, automation and internal tools.
- Improved performance and reliability of databases, web services and other integrations.
- Deployed cloud infrastructure and distributed systems on AWS.
- Developed and maintained core product services, libraries and frameworks.
- Evaluated and developed new tools and technologies to help achieve company-level goals.
- Built databases and table structures for web applications.
- Supervised work of programmers, designers and technicians, assigned tasks and monitored performance against targets.
- Analyzed work to generate logic for new systems, procedures and tests.
- Documented software development methodologies in technical manuals to be used by IT personnel in future projects.
- Tested and deployed scalable and highly available software products.
- Authored code fixes and enhancements for inclusion in future code releases and patches.
SENIOR BACKEND DEVELOPER
ASSET DATA IO SDN BHD
06.2022 - 11.2022
- Migrated reporting and data listing from traditional RDBMS queries to a full-text document search engine (Meilisearch), reducing response times to under 100ms for high-volume endpoints.
- Collaborated with System Analysts to design and develop an initial data warehouse architecture, supporting cleaner data pipelines and more efficient reporting.
- Implemented CI/CD pipelines with comprehensive unit and feature testing, ensuring consistent code quality, faster deployments, and improved development workflow reliability.
- Tested functional compliance of company products.
- Designed and implemented scalable applications for data extraction and analysis.
Certification
- Certified [SQL for Data Analyst], [Simpli Learn]
- Certified [Project Management Essentials Certification], [Management and Strategy Institute]
- Certified [Business Management Essentials Certification], [Management and Strategy Institute]
Overview
8
8
years of professional experience
3
3
Courses & Certificates
Education
S.T - TEKNIK INFORMATIKA
UNIVERSITAS AHMAD DAHLAN
YOGYAKARTA 09.2014 - 05.2018