Kreatifitas Sinergisme Teknoindo (KST) is a software company specialized in IT services and software product development. Among the key domains are retail, inventory-management, administration & back-office processing, manufacturing, e-commerce, and others. 

Our headquarter is in Jakarta, with team members working from several cities in Indonesia. We work primarily with small and midsize businesses, with clients from across Asia and Australia. 

 
Vision:

Our vision is to be a leading global IT company, trusted by its customers for consistently delivering quality software and service excellence; whilst at the same time also become a tech hub that educating and caring for its employees wellbeing, and collaborating with them for innovation and continuous improvement.  
 
 
Culture: 

We put both clients and employees at the centre of what we do. At KST, we encourage a proactive and open communication working culture.  

Below are KST core values and competencies, a list of specific attributes and behaviours we care about the most. The more these values sound like you, and describe the people you want to work with, the more likely you will thrive at KST: 

&starf; Willing to Learn: You learn rapidly and eagerly 

&starf; Observant – You listen well and seek to understand before reacting 

&starf; Respect - You adapt your style, and collaborate effectively with people of diverse background and cultures 

&starf; Knowledgeable – You are good at using data, take smart risks and think strategically 

&starf; Excellent – You are reliable, demonstrate strong performance and thirst for excellence 

&starf; Teamwork – You contribute, nurture, and make time to help colleagues 

&starf; Humble – You are quietly confident and openly humble 

&starf; Integrity – You are known for authenticity, transparency, and admit mistakes freely 

&starf; Creative – You are curious, open minded in search of new ideas and suggest better approaches 

&starf; Service – You seek what is best for KST, rather than what is best for yourself or your group 

Key Responsibilities

<ul>
	<li>Design, develop, test, and maintain scalable backend applications and services.</li>
	<li>Build, optimize, and maintain RESTful APIs to support web and mobile applications.</li>
	<li>Develop clean, efficient, secure, and maintainable code following industry best practices.</li>
	<li>Collaborate with Frontend Engineers, QA Engineers, Product Managers, and other stakeholders to deliver high-quality software solutions.</li>
	<li>Design and optimize database schemas, queries, and data models.</li>
	<li>Integrate third-party APIs and external services.</li>
	<li>Troubleshoot, debug, and resolve production issues in a timely manner.</li>
	<li>Optimize application performance, scalability, reliability, and security.</li>
	<li>Write unit tests, integration tests, and participate in code reviews to ensure code quality.</li>
	<li>Contribute to software architecture and technical design discussions.</li>
	<li>Participate in Agile/Scrum ceremonies, including sprint planning, daily stand-ups, and retrospectives.</li>
	<li>Maintain technical documentation for applications, APIs, and development processes.</li>
	<li>Monitor application health, logs, and system performance, and implement improvements when necessary.</li>
	<li>Continuously research and adopt new technologies, tools, and best practices to improve development efficiency.</li>
</ul>

Back End Developer

PT Reycom Document Solusi (RDS) is a corporation that consists of several companies working collaboratively in order to meet the need for digital solutions. RDS Group was created in 2003 in Jakarta under RDS has been expanded in establishing subsidiaries with the same business focus that provides a wide range of Integrated IT-based business management solutions in Indonesia and Asia. RDS Group has grown into 4 pillars of business focus: Business Process Outsourcing (BPO), System Integration, Printing and Creative Services, and Healthcare Management. As we accelerate our business growth, we recognize our greatest asset is our Human Resources. We invite motivated and experienced professionals to join our dynamic team and contributor to our success. Explore an exciting career at RDS, where opportunities and excellence converge.

Reycom Document Solusi (RDS Group)

<ul>
	<li>Menyediakan API dengan Server-side logic</li>
	<li>Melakukan pengembangan Framework yang reusable</li>
	<li>Melakukan optimalisasi API untuk Speed dan scalability</li>
	<li>Melakukan implementasi keamanan dan proteksi data</li>
	<li>Mendesain dan implementasi solusi penyimpanan data dan struktur basis data</li>
	<li>Melakukan integrasi dengan Backend dan Third Party API</li>
	<li>Menulis code yang mudah dipahami dan dikembangkan yang berfokus pada performa dan kualitas</li>
</ul>

PT BFI Finance Indonesia Tbk (BFI Finance) is one of the long-established pioneers in the financing sector in Indonesia. Founded in 1982, BFI Finance is recognized as a company with a wide network, supported by more than 200 financing outlets across provinces. In 1990, the Company became one of the first multifinance companies to list its shares on the Jakarta Stock Exchange and Surabaya Stock Exchange (both now known as IDX), with the ticker code BFIN.

PT BFI Finance Indonesia Tbk

<ul>
	<li>Melakukan pendekatan persuasif dan penagihan konsumen yang memiliki keterlambatan pembayaran &gt;90 hari</li>
	<li>Melakukan pemberian SP kepada konsumen yang mengalami keterlambatan pembayaran</li>
	<li>Menjaga hubungan kerja yang baik dengan konsumen dan pihak terkait (ormas, eksternal / professional collector, mata elang, dll)</li>
	<li>Melakukan penarikan barang jaminan konsumen yang bermasalah</li>
</ul>

Collection Back End Asset Penempatan Cirebon

LeapFroggr Inc. is a technology company that operates SeriousMD & NowServing. Together, SeriousMD & NowServing is a healthcare platform, whose sole mission is to "improve healthcare through technology."

Our company culture revolves around excellence, family and community, cooperation and sharing.

LeapFroggr Inc.

The position is responsible for the server side of web applications logic and integrations. The person should be able to develop and maintain functional and stable web applications to meet the company’s needs.

Responsibilities

<ul>
	<li>Participate in the entire application lifecycle, focusing on coding and debugging</li>
	<li>Write clean code to develop functional web applications</li>
	<li>Troubleshoot and debug applications</li>
	<li>Perform tests to optimize performance</li>
	<li>Collaborate with Front-end developers to integrate user-facing elements with server side logic</li>
	<li>Gather and address technical and design requirements</li>
	<li>Follow emerging technologies</li>
	<li>Liaise with developers, designers, and system administrators to identify new features</li>
</ul>

<ul>
	<li>Menangani collection bucket di atas 210/180 hari untuk product Car/Motorcycle.</li>
	<li>Melakukan proses rekrut eksternal collector sampai dengan registrasi.</li>
	<li>Mengevaluasi kinerja eksternal collector yang sudah direkrut.</li>
	<li>Bekerjasama dengan pihak ketiga untuk proses pencapaian dicabang</li>
</ul>

Back End Collection Branch Bekasi 5 Cibubur

Kompas Gramedia, through its more than 50 years of history, is striving for one goal: enlightening and empowering Indonesia. To ensure that we are able to serve the nation for another 50 years, we are undergoing a digital transformation; strengthening and expanding our solid business pillars by developing new digital business initiatives.

Our vision is to enlight all the people in Indonesia with all the knowledge we have.

Kompas Gramedia

<ol>
	<li>Build and maintain GraphQL schemas and resolvers for the CMS using TypeScript on the Apollo Server framework.</li>
	<li>Work with the existing Golang services running behind the GraphQL Apollo Server layer.</li>
	<li>Test, maintain, and recommend software improvements to ensure strong functionality and optimization.</li>
	<li>Help the DevOps team determine deployment strategies for the applications being handled.</li>
	<li>Facilitate root cause analysis of system issues.</li>
	<li>Work with experienced team members to conduct root cause analysis of issues, review new and existing code, and/or perform unit testing.</li>
	<li>Identify ideas to improve system performance and impact on availability.</li>
	<li>Resolve complex technical design issues.</li>
	<li>Develop technical specifications and plans.</li>
	<li>Analyze user requirements and convert requirements into design documents.</li>
	<li>Leverage AI coding assistants and agentic workflows ("vibe coding") to accelerate development without compromising code quality.</li>
</ol>

Back End Engineer [Freelance] at Corporate IT&IS

Cetta is an online language academy run by young Indonesians with an interactive and inclusive learning system. We are on a mission to make Indonesian as an actual World Citizen. Cetta provides a synchronous online language Academy since 2020. Currently offers 6 language courses including English, Japanese, Mandarin, Korean, French, and German with more languages to cover in the future.

Cetta Online Class

<ul>
	<li>Membalas seluruh chat masuk dengan responsif dan ramah</li>
	<li>Mempersiapkan dan menjelaskan informasi terkait kelas, harga, link pendaftaran, dan placement test kepada calon murid sesuai panduan dan template yang telah disediakan</li>
	<li>Melakukan follow up kepada calon murid sesuai arahan dan target yang ditentukan</li>
	<li>Berdiskusi aktif dengan tim, terutama untuk pertanyaan atau kasus yang membutuhkan keputusan khusus dari PIC/atasan</li>
	<li>Mencatat leads atau inquiry penting secara rapi dan meneruskannya ke tim terkait</li>
	<li>Menjaga kualitas pelayanan agar tetap konsisten, ramah, dan sesuai standar perusahaan</li>
	<li>Memastikan data calon murid tercatat dengan baik dan mudah ditelusuri</li>
	<li>Melaporkan perkembangan chat masuk, follow up, dan pendaftaran secara berkala kepada atasan</li>
</ul>

Freelance Front End Admin Cetta Mandarin

PT IDX Solusi Teknologi Informasi (IDXSTI) was established in November 2018 as a subsidiary of Indonesia Stock Exchange (IDX) and other SRO’s KPEI and KSEI. IDXSTI was focusing on providing Information Technology (IT) services to Indonesia Capital Market Industry and other Financial Services. Our objective is to give the best IT solutions to the capital market industry in order to support the development of Indonesia Capital Market.

PT IDX Solusi Teknologi Informasi

<ul>
	<li>Design, develop, and maintain applications and system modules that support company's digital products and services.</li>
	<li>Implement clean, efficient, and maintainable code aligned with best practices and internal standards.</li>
	<li>Participate in requirement analysis, system design, and architecture discussions with Product, BA, and Engineering teams.</li>
	<li>Build and integrate systems using internal and external Application Programming Interfaces, including integration with market data or financial platforms.</li>
	<li>Ensure high performance, stability, and security through testing, code review, and optimization.</li>
	<li>Prepare and maintain technical documentation including system design and deployment guides.</li>
	<li>Collaborate with Quality Assurance Engineers to support testing and ensure high-quality releases.</li>
	<li>Troubleshoot issues in development, staging, and production environments.</li>
	<li>Contribute to continuous improvement initiatives and adoption of new technologies.</li>
	<li>Support deployment, monitoring, and maintenance activities with the infrastructure team.</li>
</ul>

System Developer

Integrated Future Consulting Group (IFCG) is a strategic consulting firm that focuses on business transformation with a unique approach and creative thinking solutions. We strive to assist businesses in navigating the complexities of sustainability strategies, fostering positive change. As sister company from Premysis Consulting which was founded in 1996, a leading business & management consulting firm in Indonesia, IFCG is steadfast in delivering exceptional consulting & training services, driven by our dedication to excellence and client success story with four big services to the client which is Cyber Security, Data Privacy, IT Strategy, & Green Consulting.


Integrated Future Consulting Group (IFCG)

Kami sedang mencari OutSystems Developer berpengalaman untuk ditempatkan pada salah satu perusahaan financing di Jakarta. Kandidat terpilih akan terlibat dalam pengembangan dan pemeliharaan aplikasi enterprise menggunakan platform OutSystems guna mendukung transformasi digital dan operasional bisnis perusahaan.

OutSystems Developer

PT. Indocyber Global Teknologi, an integrated information and technology system provider, dedicated to delivering highly effective solutions in the field of Information Systems. Our core business focuses on information technology services, digital marketing and IT infrastructure. 

PT. Indocyber Global Teknologi started with only 10 (ten) personnel, currently, after years of experience, we are supported by more than 200 consultants and developers.

PT. Indocyber Global Teknologi

Placement: At one of our clients at Jakarta Area (Insurance Company)

Working System: Full WFO

Employment Contract: PKWT/Contract

 

Job Description:

Architect &amp; Build: Develop scalable backend services using .NET and design intuitive, responsive mobile interfaces with Flutter.

End-to-End Ownership: Take charge of the full software development life cycle (SDLC), from conceptualization to deployment and maintenance.

API Integration: Design and implement RESTful APIs that connect our ecosystem efficiently.

Optimize: Ensure maximum performance, quality, and responsiveness of applications across various platforms (iOS, Android, and Web).

Collaborate: Work closely with product managers and designers to turn wireframes into functional, high-quality code.

.NET Developer

Solutech Indonesia Maju lahir dari kebutuhan pasar akan platform e-commerce yang khusus menyediakan barang-barang elektronik dengan harga terjangkau, produk asli, dan layanan pelanggan yang dapat diandalkan. Di tengah maraknya e-commerce umum yang menjual beragam kategori, pendiri Solutech melihat peluang besar untuk menghadirkan spesialisasi fokus pada elektronik.

PT Solutech Indonesia Maju

Ringkasan Posisi

Kami sedang membangun website e-commerce dan mencari Backend Developer untuk menangani backend aplikasinya, mulai dari API, database, autentikasi, hingga integrasi pembayaran. Pengembangan tidak akan berhenti di e-commerce. Ke depannya akan berlanjut ke website dan aplikasi internal lain untuk mendukung operasional perusahaan, sehingga posisi ini akan menangani beragam project dalam jangka panjang. Seluruh pengembangan berjalan di atas stack Next.js dan dikerjakan bersama tim Frontend.

Tanggung Jawab Utama

Backend &amp; API

<ul>
	<li class="text-justify">Membangun dan mengembangkan API route handlers serta server actions di Next.js.</li>
	<li class="text-justify">Menjaga struktur kode tetap rapi dengan layered architecture (service &amp; repository) supaya mudah dikembangkan dan di-maintain tim.</li>
	<li class="text-justify">Menerapkan input validation dan error handling yang konsisten di setiap endpoint.</li>
</ul>

Database &amp; Data

<ul>
	<li class="text-justify">Merancang dan mengelola database schema dengan Prisma (ORM) di atas PostgreSQL, termasuk meng-handle migration.</li>
	<li class="text-justify">Menulis query yang efisien dan menjaga konsistensi data, terutama pada operasi yang membutuhkan database transaction.</li>
</ul>

Fitur E-commerce

<ul>
	<li class="text-justify">Mengerjakan fitur inti e-commerce: product catalog, cart, checkout, order, hingga inventory/stok.</li>
	<li class="text-justify">Mengintegrasikan layanan pihak ketiga seperti payment gateway, notification service (mis. email/WhatsApp), dan shipping/courier service.</li>
</ul>

Keamanan &amp; Autentikasi

<ul>
	<li class="text-justify">Membangun authentication dan authorization (mis. JWT via cookie httpOnly dan role based access control).</li>
	<li class="text-justify">Mengamankan aplikasi dari security vulnerabilities seperti SQL injection dan XSS, serta menjaga data user.</li>
</ul>

Performa &amp; Keandalan

<ul>
	<li class="text-justify">Menjaga aplikasi tetap responsif saat traffic tinggi, mis. lewat caching (Redis) dan query optimization.</li>
	<li class="text-justify">Menyiapkan logging dan error monitoring supaya masalah cepat terdeteksi sebelum berdampak ke user.</li>
</ul>

Kolaborasi &amp; Kualitas Kode

<ul>
	<li class="text-justify">Menyepakati struktur data dan API contract bersama Frontend Developer.</li>
	<li class="text-justify">Bekerja dengan rapi: Git, code review, dokumentasi secukupnya, dan testing sebelum rilis.</li>
	<li class="text-justify">Mendukung proses deployment ke server on-premise (mis. dengan Docker atau CI/CD).</li>
</ul>

This test unit measures the ability to identify patterns and inconsistencies in visual representations of data

With the vast information employees need to process and retain every day, attention to detail becomes a critical skill to have because of the efficiency it gives. Also, because thorough employees have more initiative to understand the cause and not just the effect, they do less of the unnecessary rework and produce more complete output. This test measures ability to identify patterns and inconsistencies in visual representations of data.

Attention to Detail

This test unit measures the ability to use inductive and deductive reasoning to draw logical conclusions from a given set of statements

Decisions are made every day from easy to more complex ones. Using a scientific approach to analyzing root-cause and finding results enable employees to work more independently. Logical reasoning also provides a foundation for experimentation which encourages insights and helps in the creation of new business opportunites. This test measures ability to use inductive and deductive reasoning to draw conclusions.

Logical Reasoning

Backend Developer

AdiData is an IT company focus in providing total IT Business Solutions, IT Infrastructures and IT Services to our customers. Our team has a lot of experiences in delivering the best IT Business Solutions, IT Infrastructures and IT Services with the latest trend, latest products/technologies and high quality of services.

PT Adi Data Informatika

Experience IT Developer

Backend Developer - Java Springboot (15 Orang)

Frontend Developer - Angular, Javascript (2 Orang)

Android Developer - Kotlin (10 Orang)

System Analyst (4 Orang)

AI Engineer - Phyton, Pandas, Numpys - (5 Orang)

Devops (2 Orang)

Integration Engineer (5 Orang)

IT Developer

CODE.ID was previously a business unit of INTEGRASI, a system integrator that also provided software services established in 1999. In 2014, CODE.ID becomes an independently run company which currently has around 100 passionate developers with a myriad numbers of skill sets. 

CODE.ID has been established since 1999 and became a publicly listed company in Jakarta Stock Exchange in 2001 - as PT Integrasi Teknologi Tbk. It was back to be a private company in 2007.


Our Success Stories:

We successfully developed, deployed, and supported Information Technology Infrastructure for Komisi Pemilihan Umum (KPU) or the National Election Commission in 2004. We developed the election application and also distributed, installed, and  supported (7x24 hour) two data centers and 8000 VPN connected personal computers in 5,000 locations in the cities, rural areas, and remote areas all over Indonesia.

Code.id

<ul>
	<li>Mengembangkan aplikasi backend menggunakan ASP.NET Core atau .NET Core.</li>
	<li>Mendesain dan mengimplementasikan RESTful API.</li>
	<li>Mengembangkan fitur baru sesuai kebutuhan bisnis.</li>
	<li>Melakukan perbaikan bug dan peningkatan performa aplikasi.</li>
	<li>Menulis kode yang bersih (Clean Code) dan mudah dipelihara.</li>
	<li>Melakukan code review terhadap anggota tim.</li>
	<li>Menulis unit test dan integration test.</li>
	<li>Mengikuti standar coding perusahaan.</li>
</ul>

.Net Developer

Bumi Amartha Teknologi Mandiri or “AMARTEK” was established to provide information technology solutions. Our mission from the very first day has been to cultivate professional relationships with our clients to provide effective and reliable information technology solutions for their needs. The team at "AMARTEK" is equipped with a highly developed skillset developed over decades of experience not only in information technology but also in business processes across a range of industry sectors. This business experience makes us uniquely positioned to offer solutions promising greater operational efficiency, productivity gains and cost savings for each of our clients, regardless of their industry.

As an established technology-intensive company, we pride ourselves on providing a comprehensive suite of solutions comprising of Infrastructure Consultancy, on/offsite services, Custom software and web development, Talent Augmentation, and enterprise architecture consulting. Our team consistently delivers state-of-the-art solutions in various areas including, but not limited to: integrated business solutions, system applications, product development and professional services.

At "AMARTEK", we guarantee rapid, reliable and robust information technology solutions that work. 

PT Bumi Amartha Teknologi Mandiri

<ul>
	<li>Develop, maintain, and enhance Java-based applications.</li>
	<li>Design, develop, and optimize application features based on business requirements.</li>
	<li>Write clean, efficient, and maintainable code.</li>
	<li>Collaborate with cross-functional teams to deliver high-quality solutions.</li>
	<li>Troubleshoot, debug, and resolve application issues.</li>
	<li>Develop and optimize database queries using PostgreSQL and/or Microsoft SQL Server.</li>
	<li>Participate in code reviews and ensure adherence to coding standards.</li>
	<li>Support application deployment and maintenance in cloud environments (GCP/AWS) using CI/CD tools such as Jenkins.</li>
	<li>Create and maintain technical documentation as needed. Ensure application performance, security, and reliability.</li>
</ul>

Java Developer

NTT Indonesia Technology is part of NTT Ltd. companies in Indonesia.

NTT Ltd. is a leading global technology services company. Working with organizations around  the  world,  we  achieve  business  outcomes  through  intelligent  technology solutions.  For  us,  intelligent  means  data  driven,  connected,  digital  and  secure.  Our global  assets  and  integrated  ICT  stack  capabilities  provide  unique  offerings  in  cloud-enabling   networking,   hybrid   cloud,   data   centers,   digital   transformation,   client experience, workplace, and cybersecurity. As a global ICT provider, we employ more than 50,000 people in a diverse and dynamic workplace that spans 57 countries, trading in 73 countries and delivering services in over 200 countries and regions. Together we enable the connected future. 

NTT  Ltd.  helps  client  by  deliver  a  secure  and  connected  future  that  empowers  our people, clients, and communities. We’ve focused on market feedback to define our market aspiration which is to be a long-term strategic partner for our clients around the world by enabling their digital transformation, with our global capabilities, expertise and full-stack technology services delivered through our integrated services platform.

Visit us at services.global.ntt

NTT INDONESIA TECHNOLOGY 

<ul>
	<li>Designing and implementing Java-based applications.</li>
	<li>Analyzing user requirements to inform application design.</li>
	<li>Defining application objectives and functionality.</li>
	<li>Aligning application design with business goals</li>
	<li>Ensure high code quality through unit testing, integration testing, and code reviews.</li>
	<li>Troubleshoot and resolve application issues and bugs.</li>
</ul>

Kalibrr Job Search