Software Development Engineer in Test ( SDET )

PT Lentera Bangsa Benderang; Jakarta Barat; On-site; IDR 240,000,000 - 420,000,000; Part time

Job summary

BINAR is seeking a Software Development Engineer in Test (SDET) to design and build test automation frameworks from the ground up, applying developer-level Java to create scalable, reusable test code. You will drive performance testing, API validation, and data integrity checks to ensure quality across the CI/CD pipeline.

Responsibilities include writing SQL for data validation, integrating tests into CI/CD, and applying white-box and black-box testing strategies.

Qualifications

• Minimum 3 years as an SDET, QA automation, or software engineer focused on quality.
• Strong Java programming with OOP and design patterns for scalable test code.
• Proven ability to design and build test automation frameworks from scratch.
• Experience with performance & load testing using JMeter.
• Strong API testing skills (REST/SOAP) with tools such as REST Assured or Postman.
• SQL proficiency for data validation.

Responsibilities

• Design/build test automation frameworks from scratch.
• Write developer-level Java test code using OOP/design patterns.
• Conduct performance/load testing; analyze bottlenecks.
• Perform API testing (REST/SOAP) and validate responses.
• Write SQL queries to validate data integrity.
• Integrate tests into CI/CD pipelines (Jenkins/GitLab).
• Understand/testing types: unit/integration/functional/regression/performance.
• Study data flow from docs to design accurate tests.
• Estimate load (RPS/TPS) and prepare pre‑reqs for tests.

Skills

Java

OOP & Design Patterns

Test Automation

Performance Testing

API Testing

SQL

CI/CD

Git

Framework Design

Tools

Katalon

REST Assured

Postman

SoapUI

Job description

Software Development Engineer in Test ( SDET )

Role Summary

You will design and build test automation frameworks from the ground up, apply developer-level programming to create scalable, reusable test code, and drive comprehensive quality engineering practices (including performance testing and API validation) that go beyond conventional manual QA.

Key Responsibilities

• Design and build test automation frameworks from scratch (not just utilizing existing frameworks)
• Write developer-level test code in Java, applying OOP principles and design patterns to ensure scalability and reusability
• Conduct performance & load testing (scenario design, traffic simulation, and analysis of bottlenecks, response time, and memory leaks)
• Perform strong API testing (REST/SOAP) — including status code, data accuracy, and integration flow validation
• Write SQL queries to validate data integrity
• Integrate automated tests into CI/CD pipelines for continuous testing
• Understand and apply various testing types: unit, integration, functional, regression, and performance testing (white-box vs black-box)
• Study application data flow through technical documentation to design accurate test scenarios
• Calculate user projections, estimate RPS/TPS, and prepare pre‑requisites before executing performance tests

Requirements

• Minimum 3 years of experience as an SDET, Test Automation Engineer, or Software Engineer focused on quality engineering
• Strong developer-level Java programming skills, including solid understanding of OOP and design patterns for building scalable, reusable test code (not just scripting)
• Proven ability to design and build test automation frameworks from the ground up
• Experience with performance & load testing using JMeter — scenario creation, traffic simulation, and result analysis
• Strong API testing skills (REST/SOAP) using tools such as Katalon, REST Assured, Postman, or SoapUI
• Database & SQL proficiency (e.g., MySQL, PostgreSQL, or Oracle) for data integrity validation
• Experience integrating automated tests into CI/CD pipelines (Jenkins, GitLab CI)
• Familiar with version control: Git/Bitbucket/GitLab
• Solid understanding of testing concepts: unit, integration, functional, regression, and performance testing; white-box vs black-box testing
• Able to interpret application data flow from technical documentation (e.g., Confluence)
• Able to calculate user load projections, estimate RPS/TPS, and prepare performance test pre‑requisites
• Willing to work onsite (WFO) in West Jakarta

Work Arrangement

• Employment type: Contract
• Contract duration: 12 months (extendable)
• Location: West Jakarta
• Work type: On-site/Work from Office (WFO)
• Expected join date: August/September 2026 (immediate joiners are preferred)

BINAR was born in 2017 to advance Indonesia’s technology ecosystem. Our mission is to solve digital talent gap by upskilling and job matching.

We support people to build a career in digital industry or upskilling into digital related roles with the knowledge and skills needed to thrive through a structured learning journey and multiple learning styles to ensure each learner can reach mastery through their own preferred way.

Job Connect by BINAR is an IT & AI community for Indonesian digital talent. Built to help you grow your skills, expand your connections, and access impactful career opportunities with BINAR’s partner ecosystem.