Backend Architecture
Service boundaries, data flow and module design that keep long-lived systems maintainable as they grow.
Profile
Backend engineering for systems that must not fail
A decade of designing and delivering backend services across digital banking, education technology, recruitment platforms and billing systems.
Professional profile
I'm a Senior Backend Developer and System Engineer with over 10 years of experience in software development, enterprise application engineering, and digital banking systems.
My expertise includes designing scalable backend architectures, developing secure RESTful APIs, database optimization, authentication systems, and third-party service integrations.
Throughout my career, I have worked on enterprise banking applications, education technology platforms, recruitment systems, and billing management solutions.
I enjoy solving complex technical problems and building reliable systems that deliver real business value.
Key competencies
REST API Development
Readable, consistent and versioned APIs built with Django REST Framework, Spring Boot and Laravel.
Database Optimization
Schema design, indexing strategies and query tuning for relational databases at production scale.
Authentication & Authorization
JWT, Basic Authentication and Spring Security applied to access control across services and clients.
System Integration
Payment gateways, messaging workflows and third-party platforms integrated behind stable contracts.
Performance Engineering
Caching layers, profiling and production debugging to keep response times predictable under load.
Technical Skills
Technical Skills
Grouped by engineering domain rather than by percentage, covering the languages, frameworks, data stores and infrastructure used in production work.
Programming Languages
Primary languages used across backend services and tooling.
Backend Frameworks
Frameworks used to deliver production APIs and enterprise services.
Frontend
Enough frontend depth to deliver and integrate full features.
Database & Caching
Relational modelling, tuning and in-memory caching.
DevOps & Infrastructure
Runtime, delivery and server environments for backend systems.
Architecture & Security
Integration patterns and access control applied in production.
Career
Professional Experience
Backend development, system analysis and enterprise delivery for financial and education platforms.
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Senior System Engineer
October 2022 – June 2026PT Teknologi Edukasi Indonesia (LuarSekolah) Indonesia
- Designed scalable backend architectures.
- Developed secure REST APIs using Django REST Framework.
- Optimized database performance using Redis and indexing.
- Implemented JWT and Basic Authentication.
- Containerized backend applications using Docker.
- Integrated payment gateways and messaging services.
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System Analyst
May 2019 – September 2021PT Bank OCBC NISP Tbk Indonesia
- Developed enterprise RESTful API microservices.
- Worked with Java and Spring Boot.
- Managed Oracle Database.
- Optimized queries and database schemas.
- Managed application build configurations using Maven.
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Java Web Developer
September 2016 – May 2019PT Informasi Teknologi Indonesia Indonesia
- Developed Internet Banking and BackOffice applications.
- Worked with Java and Spring Framework.
- Designed Oracle database schemas and stored procedures.
- Implemented Spring Security.
- Performed production debugging and performance tuning.
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Java Web Developer
October 2015 – September 2016PT Pilar Bina Cakrawala (Paybil) Indonesia
- Developed Java application logic.
- Participated in requirements gathering.
- Supported testing and deployment.
Education
Diploma 3 — Information Management
Pasim National University
Selected projects
Looking for a senior backend engineer?
I work with teams that need dependable APIs, clean architecture and systems that hold up in production.