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Paulus Pandu Windito

Senior Backend Engineer / Jakarta, ID

Pandu
Windito.

I build reliable backend systems for financial and enterprise platforms, from service design to production.

Java · Spring Boot · Kafka · Distributed systems

Download CV Get in touch
Paulus Pandu Windito
Engineer by profession.
Explorer by nature.

Currently at Integrity Asia, leading an ERP migration and mentoring two engineers.

Explore my work

01 / Selected work

Built for the real world.

Real constraints. Considered decisions. Measurable results.

01

Berijalan Technocenter · 2024

Sales Performance Dashboard

Replaced on-demand computation with a CDC and Kafka pipeline, without changing the legacy application.

Spring Boot, Kafka, CDC, Alibaba Cloud
Dashboard load timeFrom ~3 minutes to under 1 secondRead case study
02

Integrity Asia · 2025

ATS / HRIS Connector Platform

Connected client recruitment systems through configurable field mapping, idempotent processing, and rate limiting.

Spring Boot, Azure, Workday, Manatal
Client onboardingNo client engineering requiredRead case study
03

Integrity Asia · 2025

AI-Assisted Delivery Pipeline

Built an Azure DevOps workflow that plans, implements, and reviews routine fixes, with approval gates for complex work.

Azure DevOps, model routing, CI/CD
AI-assisted deliveryFrom ticket to reviewed changeRead case study
04

Research & development · Recent R&D

Search & Analytics Dashboard R&D

Explored PostgreSQL CDC feeding OpenSearch for complex search and ClickHouse for dashboard analytics with dynamic filters, facets, and grouping.

PostgreSQL, CDC, OpenSearch, ClickHouse
Recent R&DSeparate read paths for search and analyticsRead case study

02 / Experience

Ownership, end to end.

Full resume

Aug 2025 — Present

Integrity Asia

Software Engineer

Enterprise ERP platform migration. Senior-scoped in a flat title structure — I mentor and technically direct two junior engineers, and act as the primary translator between business requirements and buildable system design.

Jan 2023 — Aug 2025

Berijalan Technocenter

Senior Backend Developer

Architected and shipped five microservice platforms of three to nine services each — real-time messaging, CRM, telephony, vehicle insurance, sales performance — on Alibaba Cloud. Promoted to Senior after twelve months.

Apr 2025 — Aug 2025

Bank Saqu

Senior Backend Developer

Client placement via Berijalan. Designed and delivered virtual account features on Google Cloud for a digital bank, and hardened core banking services under banking-grade security and audit requirements. The only engineer to pass the technical assessment.

03 / Technical focus

Depth where it matters.

Languages

Java · Kotlin · TypeScript · C#

Backend

Spring Boot · Spring Cloud · .NET · Node.js · gRPC · REST

Data & messaging

PostgreSQL · Kafka · Redis · Change Data Capture pipelines

Search & analytics

OpenSearch · ClickHouse · dynamic filtering, facets, and grouping (R&D)

Reliability

Resilience4j — circuit breaker, retry, bulkhead · eventual-consistency design

Cloud & DevOps

Alibaba Cloud · Google Cloud · Azure · Docker · Jenkins · Argo CD

Frontend & testing

React · TypeScript · Angular · JUnit · Mockito

04 / Open source

The code is open.
So is the reasoning.

encrypted-search-service

Partial search over encrypted data using field-scoped HMAC tokens. The write-up covers the architecture, key rotation, and leakage trade-offs.

Explore the project GitHub

05 / Beyond the code

Good systems start
with understanding.

More about me

I own the system and the reasoning behind it: understanding business constraints, choosing service boundaries, and helping other engineers make sound decisions.

Away from the keyboard, I head for the mountains.

M.Sc. Informatics
Atma Jaya University Yogyakarta · GPA 3.74

B.Sc. Informatics
Atma Jaya University Yogyakarta · GPA 3.79

Let’s talk

Have a system in mind?

Paulus Pandu Windito
Jakarta, Indonesia · GMT+7