- Singapore
Full Time Lead - Principal Test Development Engineer (Technology) - Contract Jobs, Salary up to SGD 17,000 in QUESSCORP SOLUTIONS PTE. LTD. - Maukerja
Lead - Principal Test Development Engineer (Technology) - Contract
QUESSCORP SOLUTIONS PTE. LTD.
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Position Summary
We are seeking a highly skilled
Lead / Principal Test Development Engineer (Technology)
to lead the strategy, architecture, and implementation of scalable test solutions for data-intensive, AI-driven, distributed, and mission-critical systems.
The ideal candidate will possess deep expertise in software quality engineering, test automation, performance engineering, big data technologies, AI/ML system validation, and distributed platforms. This role requires a hands-on technical leader who can establish quality frameworks, drive automation maturity, optimize system performance, and ensure the reliability of large-scale production systems.
The successful candidate will have a proven record of improving system quality, automating testing at scale, validating intelligent recommendation algorithms, and delivering measurable business impact through engineering excellence.
Key Responsibilities
Technical Leadership
Define and execute the organization's quality engineering and test technology roadmap.
Serve as the technical authority for test automation, performance engineering, AI system validation, and distributed systems testing.
Establish best practices, standards, and governance across software quality engineering initiatives.
Mentor test engineers and software development teams on modern testing methodologies and quality-driven development practices.
Lead cross-functional quality initiatives involving Engineering, Data Science, Product Management, DevOps, and Infrastructure teams.
AI, Machine Learning & Recommendation System Testing
Design and execute test strategies for AI-powered recommendation and decision-making systems.
Validate machine learning models for accuracy, reliability, scalability, robustness, and fairness.
Build testing frameworks for recommendation engines, prediction models, ranking algorithms, and personalization systems.
Develop methodologies for data quality validation, model drift detection, algorithm benchmarking, and regression testing.
Establish monitoring and validation mechanisms for production AI services.
Big Data & Distributed Systems Testing
Design comprehensive test plans and test cases for large-scale distributed applications built on:
Hadoop
Spark
Flink
Kafka
Debezium
Cloud-native data platforms
Validate end-to-end data ingestion, transformation, processing, storage, and reporting pipelines.
Develop automated validation frameworks for data integrity, consistency, reconciliation, and lineage verification.
Ensure reliability and quality of real-time and batch processing systems.
Performance & Scalability Engineering
Lead performance testing initiatives for enterprise-scale systems, APIs, data platforms, and microservices architectures.
Design and execute load, stress, endurance, scalability, and capacity testing programs.
Drive throughput optimization and latency reduction initiatives.
Develop performance test frameworks using:
JMeter
K6
Grafana
InfluxDB
Prometheus
Analyze bottlenecks and work closely with engineering teams to optimize system architecture and infrastructure performance.
Test Automation Architecture
Architect and develop enterprise-level automated testing frameworks.
Build reusable automation platforms supporting:
UI Testing
API Testing
Integration Testing
Data Testing
Regression Testing
End-to-End Testing
Develop automation solutions using:
Python
Selenium
Behave
PyTest
CI/CD pipelines
Promote BDD, TDD, and continuous testing practices.
Drive automation adoption to significantly reduce manual testing effort and improve release velocity.
Data Quality Engineering
Design and implement comprehensive data validation frameworks.
Develop automated solutions to verify:
Data completeness
Data accuracy
Data consistency
Data reconciliation
Regulatory reporting data
Support quality assurance for large-scale financial, taxation, compliance, and analytical data platforms.
Build synthetic data and data-mocking platforms to accelerate testing activities.
Reliability & Production Quality
Lead root cause investigations for critical production incidents.
Establish preventive quality controls to eliminate recurring defects.
Drive defect prevention and continuous quality improvement programs.
Ensure production readiness through risk assessment, resilience validation, and operational testing.
Platform & Tooling Development
Lead development of internal quality engineering platforms and productivity tools.
Build centralized solutions for:
Test execution management
Performance testing
Test reporting
Data generation
Test environment orchestration
Improve engineering efficiency through automation and self-service capabilities.
Required Qualifications
Bachelor's or higher in Automation Engineering Technology, Computer Science, Software Engineering, Information Systems, Data Engineering
10+ years of experience in software testing, quality engineering, or test development.
Working experience on e-commerce platforms is mandatory
Strong experience working onsite in China and Singapore is mandatory.
Proven experience testing large-scale distributed systems and data platforms.
Strong background in AI/ML application testing and recommendation systems validation.
Extensive experience building automation frameworks from the ground up.
Experience leading major quality transformation initiatives.
Demonstrated success in high-growth and technology-driven environments.
AI recommendation systems and intelligent customer targeting platforms.
Financial technology, credit systems, tax systems, or regulated platforms.
Encryption, security, and high-throughput transaction processing systems.
Data quality assurance for enterprise-scale analytics environments.
Blockchain-related testing, cryptographic platforms, or asset verification systems.
Performance optimization projects delivering significant gains in system throughput and scalability.
Development of internal testing platforms, quality engineering tools, or enterprise automation frameworks.
Technical Expertise
Programming & Automation
Python (Expert)
Selenium
Behave
PyTest
REST API Testing
UI Automation
Test Framework Design
Big Data Technologies
Hadoop
Spark
Flink
Kafka
Debezium
Data Warehousing Platforms
ETL/ELT Frameworks
Performance Engineering
JMeter
K6
Grafana
InfluxDB
Load Testing
Throughput Analysis
Capacity Planning
Cloud & DevOps
Docker
Kubernetes
Jenkins
GitLab CI/CD
Monitoring & Observability Solutions
Data & AI Quality
Data Pipeline Validation
Recommendation System Testing
ML Model Validation
Data Reconciliation
Statistical Analysis
Algorithm Verification
Disclaimer: The company is committed to ensuring the privacy and security of your information. By submitting this form, you consent to the collection, processing, and retention of the information you provide. The data collected (which may include your contact details, educational background, work experience and skills) will be used solely for the purpose of evaluating your qualifications for the position you're applying for. Your data will be stored securely and retained for the duration necessary to fulfill our hiring process. If you are not selected for the position, your data will be kept on file for a limited period in case future opportunities arise. You have the right to access, correct, or delete your data at any time by contacting us at Quess Singapore | A Leading Staffing Services Provider in Singapore (quesscorp.sg)
“This is in partnership with the Employment and Employability Institute Pte Ltd (“e2i”).
e2i is the empowering network for workers and employers seeking employment and employability solutions. e2i serves as a bridge between workers and employers, connecting with workers to offer job security through job-matching, career guidance and skills upgrading services, and partnering employers to address their manpower needs through recruitment, training, and job redesign solutions. e2i is a tripartite initiative of the National Trades Union Congress set up to support nation-wide manpower and skills upgrading initiatives. By applying for this role, you consent to Quesscorp Singapore’s PDPA and e2i’s PDPA. By submitting your application for this position, you consent to the collection, use, and disclosure of your personal data by Quesscorp and its recruitment partners, including Employment and Employability Institute Pte Ltd, for the purpose of i) employment facilitation and ii) data and statistical analysis. You may find out more information on the PDPA policies at Quesscorp website and [*************]."
We are seeking a highly skilled
Lead / Principal Test Development Engineer (Technology)
to lead the strategy, architecture, and implementation of scalable test solutions for data-intensive, AI-driven, distributed, and mission-critical systems.
The ideal candidate will possess deep expertise in software quality engineering, test automation, performance engineering, big data technologies, AI/ML system validation, and distributed platforms. This role requires a hands-on technical leader who can establish quality frameworks, drive automation maturity, optimize system performance, and ensure the reliability of large-scale production systems.
The successful candidate will have a proven record of improving system quality, automating testing at scale, validating intelligent recommendation algorithms, and delivering measurable business impact through engineering excellence.
Key Responsibilities
Technical Leadership
Define and execute the organization's quality engineering and test technology roadmap.
Serve as the technical authority for test automation, performance engineering, AI system validation, and distributed systems testing.
Establish best practices, standards, and governance across software quality engineering initiatives.
Mentor test engineers and software development teams on modern testing methodologies and quality-driven development practices.
Lead cross-functional quality initiatives involving Engineering, Data Science, Product Management, DevOps, and Infrastructure teams.
AI, Machine Learning & Recommendation System Testing
Design and execute test strategies for AI-powered recommendation and decision-making systems.
Validate machine learning models for accuracy, reliability, scalability, robustness, and fairness.
Build testing frameworks for recommendation engines, prediction models, ranking algorithms, and personalization systems.
Develop methodologies for data quality validation, model drift detection, algorithm benchmarking, and regression testing.
Establish monitoring and validation mechanisms for production AI services.
Big Data & Distributed Systems Testing
Design comprehensive test plans and test cases for large-scale distributed applications built on:
Hadoop
Spark
Flink
Kafka
Debezium
Cloud-native data platforms
Validate end-to-end data ingestion, transformation, processing, storage, and reporting pipelines.
Develop automated validation frameworks for data integrity, consistency, reconciliation, and lineage verification.
Ensure reliability and quality of real-time and batch processing systems.
Performance & Scalability Engineering
Lead performance testing initiatives for enterprise-scale systems, APIs, data platforms, and microservices architectures.
Design and execute load, stress, endurance, scalability, and capacity testing programs.
Drive throughput optimization and latency reduction initiatives.
Develop performance test frameworks using:
JMeter
K6
Grafana
InfluxDB
Prometheus
Analyze bottlenecks and work closely with engineering teams to optimize system architecture and infrastructure performance.
Test Automation Architecture
Architect and develop enterprise-level automated testing frameworks.
Build reusable automation platforms supporting:
UI Testing
API Testing
Integration Testing
Data Testing
Regression Testing
End-to-End Testing
Develop automation solutions using:
Python
Selenium
Behave
PyTest
CI/CD pipelines
Promote BDD, TDD, and continuous testing practices.
Drive automation adoption to significantly reduce manual testing effort and improve release velocity.
Data Quality Engineering
Design and implement comprehensive data validation frameworks.
Develop automated solutions to verify:
Data completeness
Data accuracy
Data consistency
Data reconciliation
Regulatory reporting data
Support quality assurance for large-scale financial, taxation, compliance, and analytical data platforms.
Build synthetic data and data-mocking platforms to accelerate testing activities.
Reliability & Production Quality
Lead root cause investigations for critical production incidents.
Establish preventive quality controls to eliminate recurring defects.
Drive defect prevention and continuous quality improvement programs.
Ensure production readiness through risk assessment, resilience validation, and operational testing.
Platform & Tooling Development
Lead development of internal quality engineering platforms and productivity tools.
Build centralized solutions for:
Test execution management
Performance testing
Test reporting
Data generation
Test environment orchestration
Improve engineering efficiency through automation and self-service capabilities.
Required Qualifications
Bachelor's or higher in Automation Engineering Technology, Computer Science, Software Engineering, Information Systems, Data Engineering
10+ years of experience in software testing, quality engineering, or test development.
Working experience on e-commerce platforms is mandatory
Strong experience working onsite in China and Singapore is mandatory.
Proven experience testing large-scale distributed systems and data platforms.
Strong background in AI/ML application testing and recommendation systems validation.
Extensive experience building automation frameworks from the ground up.
Experience leading major quality transformation initiatives.
Demonstrated success in high-growth and technology-driven environments.
AI recommendation systems and intelligent customer targeting platforms.
Financial technology, credit systems, tax systems, or regulated platforms.
Encryption, security, and high-throughput transaction processing systems.
Data quality assurance for enterprise-scale analytics environments.
Blockchain-related testing, cryptographic platforms, or asset verification systems.
Performance optimization projects delivering significant gains in system throughput and scalability.
Development of internal testing platforms, quality engineering tools, or enterprise automation frameworks.
Technical Expertise
Programming & Automation
Python (Expert)
Selenium
Behave
PyTest
REST API Testing
UI Automation
Test Framework Design
Big Data Technologies
Hadoop
Spark
Flink
Kafka
Debezium
Data Warehousing Platforms
ETL/ELT Frameworks
Performance Engineering
JMeter
K6
Grafana
InfluxDB
Load Testing
Throughput Analysis
Capacity Planning
Cloud & DevOps
Docker
Kubernetes
Jenkins
GitLab CI/CD
Monitoring & Observability Solutions
Data & AI Quality
Data Pipeline Validation
Recommendation System Testing
ML Model Validation
Data Reconciliation
Statistical Analysis
Algorithm Verification
Disclaimer: The company is committed to ensuring the privacy and security of your information. By submitting this form, you consent to the collection, processing, and retention of the information you provide. The data collected (which may include your contact details, educational background, work experience and skills) will be used solely for the purpose of evaluating your qualifications for the position you're applying for. Your data will be stored securely and retained for the duration necessary to fulfill our hiring process. If you are not selected for the position, your data will be kept on file for a limited period in case future opportunities arise. You have the right to access, correct, or delete your data at any time by contacting us at Quess Singapore | A Leading Staffing Services Provider in Singapore (quesscorp.sg)
“This is in partnership with the Employment and Employability Institute Pte Ltd (“e2i”).
e2i is the empowering network for workers and employers seeking employment and employability solutions. e2i serves as a bridge between workers and employers, connecting with workers to offer job security through job-matching, career guidance and skills upgrading services, and partnering employers to address their manpower needs through recruitment, training, and job redesign solutions. e2i is a tripartite initiative of the National Trades Union Congress set up to support nation-wide manpower and skills upgrading initiatives. By applying for this role, you consent to Quesscorp Singapore’s PDPA and e2i’s PDPA. By submitting your application for this position, you consent to the collection, use, and disclosure of your personal data by Quesscorp and its recruitment partners, including Employment and Employability Institute Pte Ltd, for the purpose of i) employment facilitation and ii) data and statistical analysis. You may find out more information on the PDPA policies at Quesscorp website and [*************]."
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