Company

Built to run the whole hotel, not just the front desk.

Sentinel Tech was founded in 2021 on a commitment we have not moved off since: a hotel should run its front office, point of sale and accounting on one platform and one database, instead of three systems and a monthly reconciliation. Sentec software now runs the operation at more than 200 properties across seven countries, certified to ISO 9001 and ISO/IEC 27001.

The Sentinel Tech team in the Jakarta office

200+

Hotels running on our solutions

2021

Founded in Indonesia, hotel people from day one

7

Countries with properties live

ISO

9001:2015 and 27001 certified

The story

One database, from the front desk to the general ledger.

Development began in January 2021 against a brief that has not changed since: build one system that covers the whole hotel. Most products sold as a PMS stop at the front desk, so point of sale and accounting live somewhere else, and every month ends in exports, re-keying and reconciliation. We committed to making that unnecessary, and to building it properly rather than quickly.

PT Sentinel Tech Indonesia was established in April 2021 and Sentec registered as the trademark. The platform was built for the browser, and for serverless infrastructure in AWS, from the first line of code. Those decisions were taken before we had a single customer, so that no property ever needs a server in its back office and the platform grows with our customers instead of being rebuilt around them.

Building it that way also protects our customers in a way they never have to manage themselves. There is no server in the hotel to patch, back up or replace, and nothing on our side runs long enough to go stale: every environment that runs Sentec software is created fresh from the current release and discarded when its work is done. Security updates reach every property at once, and a hotel never inherits a problem from last month's system.

The accounting module was the decisive commitment. Rather than oblige every hotel to license a third-party ERP and then keep it in step, we built finance ourselves, on the same database as the operation. It was the harder road and it took longer. It also removed the reconciliation problem completely, which is exactly what we set out to do. Before Sentec software, month-end at many of our properties meant three days or more of exports and re-keying between the front desk and accounting. Now the ledger is already there when the night audit closes.

Today Sentec software runs the largest privately held hotel chain in Southeast Asia, alongside other well-respected hotel groups and industry leaders, and independent properties. The same system and the same database, whether the property is a small boutique or a large city hotel.

One system, finance included

A hotel should not have to buy a separate accounting package, or middleware to keep it in step with the front desk. Finance is part of the platform.

Web-based, any device

Built for the browser from the first line, so a property is never tied to particular hardware, or charged extra for a tablet.

Priced for real hotels

No per-user licensing, so a hotel can put the system in front of every department that needs it.

Always current, never patched

Every property runs the current release, and nothing in our infrastructure lives long enough to fall behind or carry a problem forward.

Jan 2021

Development starts

A founding team, a two-year plan, and the architecture decisions that still hold today: browser-first, serverless in AWS, and one database for the whole hotel.

Apr 2021

Sentinel Tech established

PT Sentinel Tech Indonesia incorporated, sentineltech.com secured and Sentec registered as the trademark.

Late 2021

Accounting brought in-house

The finance module begins, built on the same database as the operation instead of licensing a third-party ERP.

2022

Billing and training built out

A customer portal and automated billing system, and dedicated training teams pairing a front office specialist with a finance specialist.

2023

First properties live

Version one delivered inside the original two-year plan, with front office, point of sale and accounting all running on one database.

2025

Recognized and certified

Named Indonesia Leading Hospitality Management System at ITTA 2025, with ISO 9001:2015 and ISO/IEC 27001 certification and 200+ properties live.

The team

Specialists in the departments the software serves.

Much of Sentinel Tech has run a hotel front desk or closed a hotel's books. The engineers who build the system sit beside the front office and finance specialists who train each property on it, so what ships is what works on a shift, not what looked good in a demo.

Jules Brookfield

Jules Brookfield

Founder, CEO

Owner and operator of hotels, hostels and restaurants for two decades, and a software developer before any of that. After twenty years of using the software the industry sells to hotels, he decided the better answer was to build it. Sets the platform direction and owns the technology decisions behind Sentec software.

Andi Mario

Andi Mario

Director of Development and Operation

Fifteen years in hospitality before Sentinel Tech. Runs development and day-to-day platform operations.

Nikolas Katuuk

Nikolas Katuuk

Director of Business Development

Twenty years in the hospitality industry. Works with hotel groups and owners on how Sentec software fits their operation and what the rollout will look like.

Putu Yudana

Putu Yudana

Project/Product Manager

Started as a software developer and worked his way up through the ranks on a love of the craft. Owns how the system behaves on shift, department by department.

Good governance

Working to the highest ethical and professional standards.

Our published policies govern how we behave on a customer’s property, how we protect their systems and how we handle the data that runs their business.

Data privacy

Privacy is a control, not a clause.

Guest and employee data is handled under strict security protocols, in full compliance with industry standards and local regulation in every market we operate in. Our information security management is certified to ISO/IEC 27001.

Consumer complaint service

0853-1111-1010

Ditjen PKTN, Indonesian language only. For complaints that cannot be resolved through our own support channels.

Awards and certifications

Audited, not self-declared.

ISO 9001:2015 certified

ISO 9001:2015

Quality management, certified by Global Inter Certification

ISO/IEC 27001 certified

ISO/IEC 27001

Information security management, certified by Global Inter Certification

ITTA 2025 award

ITTA 2025

Indonesia Leading Hospitality Management System

We’re hiring

Build the system 200+ hotels run on

We are hiring engineers, and front office and finance specialists who know how a hotel actually runs. The people who build Sentec software are the people who train the properties on it, so the work goes straight into the hands of the teams using it on every shift. If that sounds like your kind of job, we would like to hear from you.

Apply now
Two developers reviewing code together at a desk of monitors