Sintong Panjaitan's Resume

Sintong Panjaitan

Detail oriented Back End Engineer dedicated to building high-quality products.

Jakarta, Indonesia

About

Experienced Senior Back-End Engineer with 8 years in the finance industry, specializing in building scalable, high-performance financial applications. Strong expertise in Java (Spring Boot,), Python (Flask), SQL (PostgreSQL, mariaDB, oracle), and cloud deployment (GCP). Skilled in API development, payment gateway integration, financial compliance, and system optimization. Successfully transitioned systems from monolithic architectures to microservices, improving performance and scalability. Experienced in integrating third-party services and ensuring system reliability across financial applications.

Work Experience

Akseleran

2020 - Present

Senior Back End Engineer

Akseleran is a P2P lending crowdfunding platform in Indonesia that connects SMEs with investors.
  • Cloud Deployment & Performance Scaling - Transitioned system architecture from 2 monolithic servers to a microservices framework with over 30 decoupled services, boosting scalability, resilience, and performance.Used GCP tools like Kubernetes, Pub/Sub, Compute Engine, Cloud Storage (Bucket), and Logging/Monitoring, solving major performance issues and improving scalability.
  • Lending System Development – Engineered and maintained loan lifecycle processes, including loan creation, lender investments, borrower disbursements, repayments, and payouts.
  • Third-Party API Development – Built APIs that enabled external companies to integrate Akseleran’s services into their platforms.
  • Payment Gateway Integration – Integrated multiple payment gateways and banking APIs, including Midtrans, Xendit, and BCA SNAP, to enable seamless fund transfers for lenders and borrowers.
  • Compliance & Transaction Reporting – Managed financial data reporting to regulatory bodies, ensuring compliance with industry regulations.
  • Digital Signature Integration – Integrated Privy to enable secure and legally compliant document signing.
  • Customer Engagement Analytics – Integrated CleverTap to provide marketing teams with customer insights for better targeting.
  • Python
  • Flask
  • PostgreSQL
  • Google CLoud Platform

MyIndo

2016 - 2020

Java Developer

MyIndo is a technology solutions company helping businesses digitize their operations.
  • Garuda Indonesia – Ticket Refund System
    • Improved and maintained the refund ticket processing system using Java (ZKoss framework) and Oracle DB.
  • Banking Project – ATK & Stationery Management System
    • Designed and developed the Sistem Pengendalian ATK dan Barang Cetakan from scratch using Struts 2, JSP, and MariaDB.
  • NU Mobile App Development
    • Developed the back-end and implemented news scraping from NU Online.
    • Integrated DOKU payment gateway for seamless transactions.
  • Java
  • Spring boot
  • Struts 2
  • Oracle
  • PostgreSQL
  • Thymeleaf

Education

Del Institute of Technology

2013 - 2016
Associate Degree in Informatics Engineering (A.Md)

Perbanas Institute

2017 - 2020
Bachelor's Degree in Information System (S.Kom)

Skills

  • Python
  • Flask
  • Java
  • Design Systems
  • Sprig boot
  • API
  • Thymeleaf
  • Google Cloud Platform