Backend Engineer: APIs, Integrations & Scalable Systems

PT Telkomsel Ekosistem Digital; Jakarta Selatan; On-site; IDR 120,000,000 - 240,000,000; Full time

Job summary

INDICO, Telkomsel Group’s digital company, is seeking a Backend Developer to join our API and services team in Jakarta. You will develop, maintain, and enhance backend applications and system integrations that power telecommunication and digital business solutions.

You will collaborate with internal teams and partners, perform QA/UAT, troubleshoot issues, and document technical details. 1–3 years of experience and proficiency in at least one backend language (Java, PHP, Python, Go, or Node.js)

Qualifications

• Bachelor’s degree in Computer Science, Information Technology, Software Engineering, or related field.
• 1–3 years of experience as a Backend Developer, Software Engineer, or similar role.
• Strong experience in backend development and API development (ISO 8583 and JSON)
• Proficiency in at least one backend programming language, such as Java, PHP, Python, Go, or Node.js.
• Experience with REST API, web services, messaging, and system integration.
• Good understanding of databases, including SQL and/or NoSQL databases.
• Familiarity with Git/version control, debugging, testing, and API documentation.
• Experience supporting QA/UAT and troubleshooting of backend services.
• Strong analytical and problem-solving skills.
• Experience in telecommunications, digital services, fintech, or technology companies is a plus.

Responsibilities

• Develop, maintain, and enhance backend applications and services supporting telecommunication and digital business solutions.
• Develop and maintain system integrations, APIs, messaging services, and backend services.
• Collaborate with internal technical teams, business partners, and Telkomsel to implement and maintain integrated services.
• Perform QA and User Acceptance Testing (UAT) to ensure backend functionality and system integration meet business and technical requirements.
• Troubleshoot and resolve backend, API, and integration-related issues.
• Monitor backend application performance and contribute to system optimization and continuous improvement.
• Prepare and maintain technical documentation related to backend development and system integration.

Skills

Backend development

API development

REST API

SQL/NoSQL databases

Java

PHP

Python

Go

Node.js

System integration

QA/testing

Education

Bachelor’s degree in Computer Science, Information Technology, Software Engineering, or related field

Tools

Git

Job description

INDICO, Telkomsel Group’s digital company, is seeking a Backend Developer to join our API and services team in Jakarta. You will develop, maintain, and enhance backend applications and system integrations that power telecommunication and digital business solutions.

You will collaborate with internal teams and partners, perform QA/UAT, troubleshoot issues, and document technical details. 1–3 years of experience and proficiency in at least one backend language (Java, PHP, Python, Go, or Node.js)