About this role
We are hiring a Senior Software Engineer in Seremban to build and maintain the software that connects semiconductor back-end equipment to the factory host. The role centres on SECS/GEM equipment control, legacy integration (SOAP), and handling wafer maps and test data across assembly and test lines. About the role You will own the software layer between back-end production equipment and the factory systems (MES, host, test data servers). Your work keeps machines connected, recipes and lots flowing correctly, and wafer maps and test results accurate from die attach through final test. The focus is back-end assembly and test, not wafer-fab (front-end) processing. It is also a backend and integration role: no web front-end or UI design work is expected, although you will maintain lightweight web pages and tools used by engineers. The existing codebase includes applications written in Ada. We do not expect Ada experience; strong C++ engineers who are willing to learn and maintain Ada code are a good fit. Key Responsibilities: Equipment integration and control Design, develop and maintain SECS/GEM interfaces (SEMI E4/SECS-I, E5/SECS-II, E30/GEM, E37/HSMS) between back-end equipment and host/MES systems. Integrate new and existing die bonders, wire bonders, moulding systems, testers, handlers and AOI tools, including collection events, alarms, variables, remote commands and recipe management. Support equipment qualification, factory acceptance and site acceptance testing for automation software. Legacy systems and interfaces Maintain and extend legacy integrations built on SOAP web services, XML and proprietary protocols. Maintain, debug and modernise existing Ada and C++ applications while keeping production lines running. Build connectors and adapters between legacy services and newer platforms, including message-bus based integration (e.g. JMS). Wafer maps and test data Develop and support software that handles wafer maps (e.g. SEMI E142, SINF/TSK and vendor formats) for die picking and bin tracking. Handle test data flows (e.g. STDF, bin summaries, lot/yield data) from testers to data servers and yield systems. Ensure data integrity and traceability across lots, wafers, strips and units. Support, quality and collaboration Provide second- and third-line support for production issues, including root-cause analysis and permanent fixes. Maintain Windows-based equipment PCs and servers: services, configuration, scheduled tasks, logs and patches in cooperation with IT. Build and maintain simple internal web tools (HTML, JavaScript, CSS) for engineering use. Write technical documentation, follow change-control procedures and participate in code reviews. Work with equipment, process, test and IT engineers, and with equipment vendors, to resolve interface issues. Mentor junior engineers and share knowledge within the team.