Senior iOS & API Integration Engineer

SIGMATECH; Jakarta Pusat; On-site; IDR 180,000,000 - 240,000,000; Full time

Job summary

SIGMATECH is seeking a skilled integration specialist to work across mobile and middleware platforms in a Jakarta-based environment. You will contribute to maintaining legacy Swift/Objective-C modules while leveraging Flutter or React Native for cross‑platform work and ensuring robust CI/CD pipelines.

Key focus areas include webMethods Flow Services, Java development, and secure, high-volume integration architecture across multiple environments.

Qualifications

• Experience with Swift and Objective-C for legacy code.
• Experience with Flutter or React Native and CI/CD.
• Experience with webMethods including Flow Services and Java.
• Strong knowledge of integration architecture, ESB, REST/SOAP APIs, JSON/XML and secure integration (OAuth, SSL/TLS, certificates).
• Experience in webMethods installation, migration, upgrade, deployment and environment management.
• Hands-on incident troubleshooting, debugging and performance tuning for Integration Server/ESB, esp. for high-volume transactions.
• Able to manage software production builds and deployments across multiple environments.
• Strong analytical, troubleshooting and problem-solving skills.

Skills

Swift

Objective-C

CI/CD

Troubleshooting

Debugging

Analytical skills

Problem solving

Tools

Flutter

React Native

webMethods

Flow Services

Java

OAuth

SSL/TLS

Job description

SIGMATECH is seeking a skilled integration specialist to work across mobile and middleware platforms in a Jakarta-based environment. You will contribute to maintaining legacy Swift/Objective-C modules while leveraging Flutter or React Native for cross‑platform work and ensuring robust CI/CD pipelines.

Key focus areas include webMethods Flow Services, Java development, and secure, high-volume integration architecture across multiple environments.