surianto

Engineered high-concurrency transactional validation gateways for E-IPO and Warrants Redemption via Java and Spring Boot microservices. • Processed real-time multi-platform transactions (iOS/Android/Desktop) while enforcing strict balance validation rules. • Eliminated data race conditions and double-spending risks before routing payloads to external Exchange APIs. • Orchestrated automated financial backend lifecycles, handling allotment protocols and ledger settlements. Core Trading Back Office Infrastructure (Groovy/Grails, Angular) • Fully automated regulated investor RDN account signup pipelines via secure B2B Bank API integrations. • Developed secure, auto-filling and cryptographically auto-signed data streaming pipelines for partner banks. • Architected lightweight, zero-trust session validation using asymmetric RSA keys via secure browser cookies, bypassing high-overhead OAuth2/JWT for ultra-low latency. • Designed stateless, signed verification layers across distributed microservices for zero database lookup latency. • Enhanced notification messaging systems to process multi-recipient inputs with strict username validation filters. High-Throughput Asynchronous Messaging Engine (Java, Spring Boot) • Built an asynchronous multi-threaded engine in Spring Boot for parallel processing of sensitive financial data. • Optimized JVM thread pools and memory management to execute massive email blasts via local SMTP and APIs without leaks. • Automated secure generation and batch delivery of monthly financial reports, annual tax statements, and 9 templates.

Developed Java (spring framework) back-end elements of applications & Desktop webpages for Mobile based attendance (Android & IOS devices) with server side application running on multiple Wildfly API servers, using Oracle & Mongo database. Connected to over 30000 mobile users and growing, in hundreds of remote locations, across three time zones. Handles various types of employees with their own unique treatments such as: internal employees outsourced employees contracted employees external vendors Developed several back-end API for micro-service based applications for a private bank. Consolidate bank customer's asset and liabilities portfolios. Goal based planning investment, These projects are written in Java (spring boot framework) , with DB2 & Oracle Databases, developed in Agile development environment. There're many API(s) made by other vendors that provide data source for these projects. The data consumption is implemented by feign client interface. The application is deployed with Jenkins on Azure cloud service.

Below are projects that i have completed: HRD Information System. Completed alone with supervision from manager.Written in Visual Foxpro. Handling daily attendance data of over 3000 active employees for more than 4 years. Leasing / Financing Info System. With team. Written in Visual Foxpro. Handles customers & their leasing transaction data. Fingerprint attendance server. Connected to hundreds of fingerprint sensor machines across branch offices. Completed alone. Written in Borland Delphi. MySQL DB. More than 200 machines, over 3 time zones. Simple reporting Webpage for Attendance. Written in PHP language. Read data from remote fingerprint sensor through socket connections. Completed alone with supervision from manager. Reporting Web Apps for Attendance. Completed alone, written in Java and jQuery, deployed in Glassfish Server. Reporting Web Apps for Leasing / Refinancing business. Alone, written in Java, deployed in Glassfish Server. Oracle DB. Fixed Asset Web Application. Alone with supervision from manager. Written in Java and jQuery, deployed in Glassfish Server. Oracle DB. The project starts from December 2017 to October 2018. Working on Host to Host system to connect core leasing system to a private Bank through WSDL, SOAP message technology.