Software engineering · Depok, Indonesia · since 2016

Software that improves how your business runs.

We are a team of engineers building and modernizing systems for airlines, banks, telcos, and government — and we open-source the tools we build along the way.

Start a conversation See our work

Trusted by

Telkomsel Garuda Indonesia Citilink Bank BNI MNC Bank CyberSource Antavaya

Industries

Domains we know deeply

Two decades of building business-critical systems across regulated, high-volume industries.

Airline

Booking, payments, and travel systems.

Telco

Carrier-scale platforms & integrations.

Government

Public-sector systems & portals.

Banking

Card centers & payment infrastructure.

eCommerce

Storefronts, checkout & fulfillment.

IT Infrastructure

24/7 operations & legacy modernization.

What we do

From first commit to 24/7 operation

We design, build, and run business-critical software — and stay accountable for how it performs.

Custom software engineering

Domain-driven systems built to fit how your business actually works — not the other way around.

Legacy modernization

Bring aging, business-critical applications up to today’s standards without halting operations.

Payments & integration

Payment gateways and system integrations that consolidate fragmented, costly workflows.

Infrastructure & operations

We run what we build — maintaining the full stack for reliable 24/7 operation.

Selected work

Outcomes for demanding clients

A few engagements where the work moved a real business metric.

Citilink Airline · Payments

A unified payment gateway across providers

We implemented a multi-provider payment gateway solution for Citilink, consolidating fragmented integrations and saving substantial operational costs.

Operational costs cut

Bank BNI Banking · Modernization

BNI Card Center, brought up to date

We modernized the BNI Card Center legacy website to keep up with today’s demands, while maintaining the entire infrastructure stack for smooth 24/7 operation.

24/7 uptime maintained

Telkomsel Telco · Business Systems

Travel management, streamlined

We built a travel management system for Telkomsel that reduced costs and improved a core internal business process end to end.

Process cost reduced

Open source

The building blocks, in the open

We extract the tools we rely on into open-source libraries for PHP, Symfony, and Doctrine. Read the code before you ever hire us.

rekalogika.dev → github.com/rekalogika →

rekalogika/analytics Pre-aggregated analytics for Doctrine entities. rekalogika/mapper Object mapper for PHP & Symfony. rekalogika/file High-level file abstraction over Flysystem. rekalogika/rekapager Offset & keyset pagination for PHP.

A small team that ships serious software

We are a group of highly motivated IT enthusiasts in Depok, Indonesia. We’ve spent years building and operating systems for some of the country’s largest airlines, banks, and telcos. Tell us about your business process — we’ll find a way to improve it.

Get in touch

Let’s improve your business process.

Tell us what you’re working on. We reply to every message.

Emailinfo@rekalogika.com Phone+62 812 2050213 WhatsApp+62 812 2050213

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