Senior AI-Driven Metrology Software Engineer

ONTO INNOVATION SOUTHEAST ASIA PTE. LIMITED

Singapore

On-site

SGD 120,000 - 180,000

Full time

5 days ago

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Job summary

Onto Innovation Southeast Asia Pte. Limited designs and manufactures inspection and metrology tools for leading chipmakers.

This hands-on engineering role involves designing, building, and shipping agentic applications for semiconductor metrology, end-to-end ownership from design to release and support. You will work with system engineers and developers to transform complex data flows into reliable software, applying AI tools responsibly and ensuring quality, security, and performance in real

Qualifications

5+ years of professional software engineering, including 2+ years building applications with LLMs or agents that reached production.
Proficiency in Python, C++, or C#, and a strong grasp of data structures, design patterns, and object-oriented design.
Hands-on experience with LLM application engineering: tool calling, retrieval, prompt and context design, and evaluation.
Solid engineering practice: automated testing, code review, CI/CD, containers, and version control, with agile and DevOps ways of working.
Hands-on experience with AI-assisted development tools: writing clear prompts, critically reviewing generated code for errors and incorrect assumptions, and turning it into maintainable production code.
A working understanding of software security, intellectual property, data privacy, and responsible AI when using AI in enterprise software.
Strong analytical and troubleshooting skills for complex software systems, and the ability to research and solve hard technical problems independently.
Comfort moving between levels of abstraction, from system architecture to implementation details.
Experience developing software on Windows with Visual Studio and Azure DevOps.
Clear written and verbal communication with both engineers and non-specialists, and a genuine commitment to delivering quality software to customers.

Responsibilities

Build agentic applications for metrology, taking them from design through production release.
Connect agents to real systems. Integrate them with tools, data sources, and internal services through well-defined interfaces.
Build the application around the agent: the services, data flows, and user interfaces that engineers use every day.
Engineer for reliability. Automated testing, evaluation, CI/CD, and monitoring for software whose behavior is partly probabilistic.
Build quality in. Improve software quality through design and code reviews, unit testing, test automation in CI/CD pipelines, refactoring of legacy code, and static and dynamic analysis.
Deploy in fab conditions, including customer environments with strict performance, security, and data-control requirements.
Reason across the system. Work with system engineers to translate a metrology problem into well-scoped engineering work, and move between architecture and implementation details as needed.
Use AI coding tools well, to move faster while keeping ownership of design integrity and code quality. Apply them responsibly to coding, debugging, refactoring, documentation, and test generation, and maintain secure, reliable workflows for evaluating AI-generated code: human review, automated testing, static analysis, security scanning, and validation against requirements.
Raise the bar for the team. Run design and code reviews, document your decisions, and mentor less experienced engineers. Spot gaps and inefficiencies in software processes and toolchains, and drive improvements.