NIGHTSHIFTENGINEERING AFTER DARKLET'S TALK
NIGHTSHIFT / PORTFOLIO FOUNDATIONSECTOR 01 — AFTER HOURS

Jeremy Yonathan Wibisono

Senior Java / Backend Developer

BUILT FOR
WHAT'S NEXT.

Java services. Secure banking integrations.
From backend design to production troubleshooting.

START CAREER ENTER GARAGE

ORIGINAL CONCEPT. REAL EVIDENCE ONLY.

Original graphite sports coupe in a cyan-lit nighttime garageNS—01 / ORIGINAL CONCEPTFORM MEETS FUNCTIONEXPLORE SHOWROOM ↗
01 / 06SCROLL TO EXPLORE ↓DESIGNED FOR THE NIGHT
JAVA / SPRING BOOTBANKING INTEGRATIONSBACKEND SYSTEMSPRODUCTION OWNERSHIP

JAKARTA, INDONESIA / BACKEND ENGINEERING / CAREER HISTORY FROM OWNER-SUPPLIED CV

01 / CAREER MODE

EXPERIENCE. WITHOUT THE NOISE.

Banking systems, secure APIs and integration delivery.
Responsibilities over inflated metrics.

May 2026 – Present

Senior Backend Developer

Bank BTN · via PT Intikom Berlian Mustika

Spring Boot services for digital banking and internal integrations.

  • Design REST APIs and Spring Data JPA/PostgreSQL persistence for parameter and theme-management services.
  • Implement JSONB-backed configuration and MinIO asset workflows.
  • Diagnose SIT/UAT integration issues across databases, authentication and downstream systems.
Apr 2025 – Apr 2026

Java Backend Developer

Bank Saqu · via Midas

Backend integrations across OBDX, OBCL and OBSCF banking platforms.

  • Develop services for digital banking transactions and operational workflows.
  • Build adapters transforming and uploading Acumatica and Data Lake files to GCP.
  • Support production stability through troubleshooting and cross-team issue resolution.
Sep 2024 – Apr 2025

Backend Software Engineer

Danamon · via Accord

Microservices for DBankPro 2 and Banking Officer onboarding.

  • Implement authentication and authorization with Spring Security and OAuth2.
  • Deploy to SIT/UAT through Jenkins; configure environment variables and ConfigMaps in Red Hat OpenShift.
  • Contribute to peer code reviews.
Mar 2024 – Sep 2024

Backend Software Engineer

Maybank · via Accord

KTA personal-loan backend services for M2U digital banking.

  • Design and maintain REST APIs supporting loan-processing workflows.
  • Resolve production issues and document API contracts and technical specifications.
Jul 2021 – Nov 2024

Fullstack Software Engineer

PT Lviors Jaya Sentosa

Authentication, payments, reporting and desktop business applications.

  • Build Spring Boot authentication APIs and configure Spring Security/OAuth2.
  • Develop Next.js functionality, Midtrans integrations and Express.js/JasperReports reporting.
  • Build invoice applications with Java Swing and JavaFX; contribute to maintainability and code reviews.

Dates follow the supplied CV, including overlapping engagements.

02 / MY GARAGE

SELECTED BUILDS.

Explore the systems behind the interface.
Open a case file for implementation details.

ENGINEERING / CASE FILE

TradeChrono

Personal trading platform connecting backend services, self-hosted data infrastructure and an MT5 bridge.

  • NestJS
  • PostgreSQL / Supabase
  • Redis
  • Python
  • Linux / Nginx
EXPLORE TradeChrono DETAILS
  • Design and operate backend/infrastructure on Ubuntu VPS with reverse proxy, DNS and TLS.
  • Build a Python MT5 bridge using Wine and Uvicorn, with isolated terminal instances and service lifecycle management.
  • Troubleshoot deployment, database, networking and runtime dependencies across the platform.

Personal project · documented in supplied CV

VISIT TradeChrono ↗

ENGINEERING / CASE FILE

Wedding Platform

Digital invitation platform with guest responses, wishes and owner-facing RSVP management.

  • NestJS
  • TypeScript
  • Prisma
  • PostgreSQL
  • BullMQ
EXPLORE Wedding Platform DETAILS
  • Public invitation RSVP submission and wishes endpoints, with request throttling.
  • Owner-authenticated RSVP summaries and guest-management workflows.
  • NestJS API with Prisma data access and background-job infrastructure.

Engineering project · features corroborated by repository source

03 / PERFORMANCE TUNING

UNDER THE HOOD.

Tools connected to engineering work.
No arbitrary percentages or proficiency scores.

Backend systems

Java / Spring Boot

Banking services, Spring Security, Spring Data JPA and REST APIs.

Web interfaces

Angular / TypeScript

Typed application development; Angular powers this portfolio.

API services

NestJS

TradeChrono backend and invitation-platform services.

Data & messaging

PostgreSQL / Redis / Kafka

Relational persistence, Redis-backed infrastructure and Kafka messaging.

Delivery & operations

Docker / Microservices

Container tooling, banking microservices and Linux service operations.

Boundaries & trade-offs

System Architecture

Authentication, integration adapters, service lifecycle and production troubleshooting.

04 / BLACKLIST

PROOF. NOT HYPE.

Selected delivery evidence from the CV.
No invented awards or outcome metrics.

01 / SECURITY

Authentication in banking services

Spring Security and OAuth2 for Danamon onboarding and Spring Boot authentication APIs at Lviors.

CV / DANAMON + LVIORS
02 / INTEGRATION

Banking platforms and cloud adapters

OBDX, OBCL and OBSCF integration work; adapters transforming Acumatica and Data Lake files for GCP at Bank Saqu.

CV / BANK SAQU
03 / OPERATIONS

Backend-to-infrastructure ownership

TradeChrono service operations, reverse proxy, DNS/TLS and Python MT5 bridge lifecycle on Linux.

CV / PERSONAL PROJECT

05 / WORLD MAP

SEE THE SYSTEM.

TradeChrono component map.
High-level view based on the supplied project description.

TRADECHRONO / COMPONENT VIEW
TRADING INTEGRATIONPython / UvicornWine / MT5 terminals

Component overview, not an exact request-flow or network-topology claim. Redis message semantics and API-to-bridge protocol are not specified by the CV.

06 / DRIVER PROFILE

BEHIND THE BUILD.

JEREMY / BACKEND ENGINEERING

Jeremy Yonathan Wibisono

Senior Java / Backend Developer based in Jakarta, Indonesia. Experience across digital banking, secure APIs, authentication, service integrations and production support.

Hands-on ownership spans implementation, deployment, troubleshooting and cross-functional delivery.

Bachelor of Computer Science · University of Surabaya · 2017–2022

REQUEST CV / DISCUSS A ROLE ↗

NEXT DESTINATION / CONTACT

GOOD SYSTEMS.
GREAT CONVERSATIONS.

Discuss a Java backend role, a systems integration
or an engineering problem worth solving.

EMAIL JEREMY ↗

jeremyyonathan@hotmail.com

Java backend services · Banking integrations · Systems engineering