Based in Bandung, Indonesia
DAYUSMAN
TARDIAN.
A Senior Backend Engineer designing robust systems for high-load, transaction-critical environments with 6+ years of experience.
The Engineer
Philosophy
I break down complex distributed systems challenges and translate solutions into clean, maintainable code. Proven as both an individual contributor and a team lead across Golang, Node.js, and full-stack ecosystems.
Background
Bachelor of Applied Science in Informatics Engineering from Bandung TEDC Polytechnic (GPA 3.56). 6+ years designing and delivering robust backend systems for high-load, transaction-critical environments.
Experience
Selected Work
01
02/2023 – 05/2026
Backend Developer
PT. Elektronik Distribusi Otomasi Terkemuka (eDot)Bandung, West Java
- Revamped chat application by migrating to microservices architecture, improving scalability, modularity, and maintainability.
- Designed and implemented hexagonal architecture to enforce separation of concerns, resulting in cleaner codebase and easier testing.
- Optimized real-time communication and API performance using Redis, reducing response time to under 50ms.
- Designed idempotent transaction mechanisms using idempotency keys to ensure safe retries and prevent duplicate transaction processing.
- Built voucher calculation engine with prorated distribution per product, ensuring accurate discount allocation and financial consistency.
- Managed transaction state consistency between internal services and external systems, handling retries, partial failures, and duplicate requests.
- Applied asynchronous processing patterns to decouple services and improve system resilience under high load.
02
08/2022 – 02/2023
Backend Developer
Bas-It StudioBandung, West Java
- Improved deployment process by implementing CI/CD pipelines using Jenkins, ensuring faster and more reliable releases.
- Led daily progress updates and facilitated team discussions on bug fixes and feature enhancements.
- Optimized code structure to ensure clean code practices and improved data efficiency using MongoDB.
03
10/2019 – 07/2022
Fullstack Developer
PT Netindo Mediatama PerkasaBandung, West Java
- Led revamp of POS API using ExpressJS and redesigned admin dashboard using ReactJS, resulting in enhanced user experience.
- Led development of MLM application APIs and optimized backend logic for improved performance and easier maintenance.
- Integrated secure payment gateway using Xendit Service API, resulting in 50% reduction in transaction processing time.
- Developed and maintained LIMS India, a laboratory information management system, by fixing bugs and implementing new features.
- Led and managed a team of 4 engineers, providing clear briefs and work schedules, resulting in 20% increase in team productivity.
04
10/2018 – 07/2019
Frontend Developer
TyrannixBandung, West Java
- Developed travel planner application website using ReactJS, ensuring smooth and dynamic user experience.
- Implemented Redux for efficient state management across the application, improving performance and maintainability.
- Collaborated with backend team to ensure seamless API integration and optimal data exchange.
Portfolio
Featured Projects
Technical Stack
Tools of the trade
Languages & Runtime
GolangJavaScriptTypeScriptNode.jsJava Spring Boot
Frameworks & UI
ReactNext.jsNest.jsExpressJSRedux
Databases & Cache
MySQLPostgreSQLMongoDBRedisElasticsearch
Infrastructure & Tools
Micro-servicesCI/CDDockerRabbitMQGCPAWSJenkinsGit
APIs & Standards
GraphQLREST APIgRPCSocket.ioUnit Testing