Reliability Engineer

Silith; Singapore; Hybrid; SGD 70,000 - 110,000; Full time

Job summary

Silith is seeking a Reliability Engineer to lead qualification and testing for silicon photonics and co-packaged optics products. You will drive failure analysis, reliability modeling, and long-term stability, partnering with design and manufacturing to ensure product durability across lifecycles.

You will own GR-468-based qualification plans, perform HTOL/HTS/TC/THB tests, and develop Weibull models and lifetime predictions, contributing to robust, scalable CPO solutions.

Qualifications

• Bachelor's degree in Electronics, Optoelectronics, Microelectronics, or related fields.
• 3+ years of reliability engineering experience in semiconductor or optoelectronic devices.
• Knowledge of Telcordia GR-468-CORE reliability requirements for optoelectronic devices.
• Experience with reliability tests including HTOL, HTS, TC, THB, HAST, mechanical shock and vibration.

Responsibilities

• Own reliability qualification and QA activities for silicon photonic chips, optical engines, and CPO modules.
• Develop reliability qualification plans, test conditions, acceptance criteria, and validation procedures based on GR-468.
• Execute optoelectronic reliability tests (HTOL, HTS, TC, THB, HAST, SHOCK, VIBRATION).
• Evaluate lifetime reliability of CPO engines and key components (lasers, MZMs, PDs, TIAs).
• Monitor performance during testing (optical power, insertion loss, wavelength shift, BER).
• Perform failure analysis (RCA) and corrective actions per GR-468.

Skills

Reliability engineering

Cross-functional teamwork

Data analysis

Weibull analysis

Problem solving

Education

Bachelor's degree

Tools

Excel

JMP

Minitab

Python

SEM

X-ray

Job description

The Reliability Engineer will lead qualification and testing for silicon photonics and co-packaged optics (CPO) products. This role drives failure analysis, reliability modeling, and continuous improvements in product quality and long-term stability. Partnering closely with design and manufacturing teams, the Reliability Engineer ensures that products meet rigorous standards for durability and performance across their lifecycle.

Responsibilities:

• Own reliability qualification and quality assurance activities for silicon photonic chips, optical engines, CPO optical modules, and optoelectronic devices.
• Develop reliability qualification plans, test conditions, acceptance criteria, and validation procedures based on Telcordia GR-468-CORE reliability requirements for optoelectronic devices.
• Execute optoelectronic reliability tests including High Temperature Operating Life (HTOL), High Temperature Storage (HTS), Temperature Cycling (TC), Temperature Humidity Bias (THB), and mechanical stress tests.
• Evaluate lifetime reliability of CPO optical engines and key components, including lasers, MZMs, MRMs, PDs, TIAs, drivers, and related optoelectronic devices.
• Monitor optical and electrical performance during reliability testing, including optical power, insertion loss, extinction ratio, wavelength shift, PD responsivity, dark current, BER, and other critical parameters.
• Perform reliability failure analysis, root cause analysis (RCA), and corrective actions based on GR-468 requirements and test results.
• Build reliability databases and perform Weibull analysis, lifetime prediction, and reliability modeling.
• Drive reliability improvement activities with design, process, packaging, and test teams to improve product robustness and long-term stability.
• Support reliability qualification throughout EVT, DVT, PVT, and mass production stages for CPO products.
• Work with customers on reliability reports, qualification reports, and reliability data reviews.

Requirements:

• Bachelor’s degree or above in Electronics, Optoelectronics, Microelectronics, Semiconductor Engineering, Materials Science, Reliability Engineering, or related fields.
• 3+ years of reliability engineering experience in semiconductor, optical communications, optical modules, or optoelectronic devices.
• Strong knowledge of Telcordia GR-468-CORE reliability requirements for optoelectronic devices, with experience developing reliability qualification plans based on GR-468.
• Experience with optical product reliability qualification, including HTOL, HTS, Temperature Cycling, THB, HAST, Mechanical Shock, and Vibration testing.
• Understanding of optoelectronic device reliability mechanisms, including:
• Laser aging and lifetime prediction;
• PD responsivity and dark current degradation;
• Heater aging;
• Optical power degradation and wavelength shift.
• Experience with optical module/CPO reliability qualification processes, including EVT, DVT, PVT, and mass production introduction.
• Experience in reliability data analysis, including Weibull analysis, FIT rate, MTBF, and lifetime prediction.
• Experience operating reliability test equipment, including environmental chambers, humidity chambers, burn-in systems, optical measurement equipment, and electrical test equipment.
• Knowledge of semiconductor and optoelectronic failure analysis methods, including SEM, X-ray, cross-section analysis, and FA techniques.
• Experience with data analysis tools such as Excel, JMP, Minitab, or Python is preferred.
• Experience with CPO, 800G/1.6T optical modules, silicon photonics, optical engines, or high-speed optical communication products is preferred.
• Strong analytical skills and ability to work in cross-functional teams.

Tools you will master and utilize daily: