Lead Data Specialist

Lead Data Specialist (Full stack Data Science & Data Engineer)

Malaysia/Singapore

This is Worldline

Worldline helps businesses of all shapes and sizes to accelerate their growth journey - quickly, simply, and securely. We are the innovators at the heart of the payments technology industry, shaping how the world pays and gets paid. Our technology powers the growth of millions of businesses across 5 continents. And just as we help our customers accelerate their business, we are committed to helping our people accelerate their careers. Together, we shape the evolution.

The Opportunity

We are seeking a Lead Data Specialist with a strong hands-on background in data engineering to spearhead our advanced analytics and AI initiatives. This is a pivotal leadership role for a hands-on expert who is passionate about both building sophisticated machine learning models and shaping the data landscape they rely on. You will be the founding specialist of our data team, responsible for setting the technical vision, mentoring future members, and acting as the critical bridge between our data science/engineering efforts and business-facing AI applications. You will play a vital role in designing, building, and maintaining data architecture, ensuring it meets the needs of our data engineering and AI projects. In addition, you will be developing scalable and reliable data pipelines, optimizing data storage and retrieval, and ensuring data quality and security to create impactful AI-driven solutions.

Day-to-Day Responsibilities

• AI/ML Strategy:
• Contribute within a team of AI leads, and execute the data science roadmap, aligning with the business goal of delivering hyper-personalized customer experiences.
• Lead the full lifecycle of machine learning projects—from ideation and data discovery to model deployment, monitoring, and iteration.

• Mentor and guide other engineers and future developers, establishing best practices for modeling, code quality, and project execution.

• Advanced Modeling & Analytics:

• Develop and implement a range of machine learning models (e.g., recommendation engines, customer segmentation, propensity models, transaction fraud detection).
• Perform complex exploratory data analysis to identify key patterns and features that will drive business value.

• Translate complex business challenges into precise data science problems and deliver scalable, statistically robust solutions.

• Data Analytics Development & Collaboration:

• Design, develop, and maintain scalable, high-performance data pipelines and ETL processes to ingest, process, and transform large data sets from various sources into usable formats that meets business needs.
• Collaborate with LLM engineers to understand their data requirements and provide efficient data solutions to support their models that meet business objectives.
• Work with a team of AI engineers, product developers and network engineer to deliver end-to-end AI projects, from concept to production.

• Collaborate with product, engineering, and business teams to identify opportunities for AI integration and innovation.

• Data Infrastructure, Data lakehouse & Deployment:

• Support AI team to manage scalable AI infrastructure, ensuring efficient resource utilization and performance optimization.
• Jointly conduct capacity planning to support AI and data analytics workloads, on premise and cloud.
• Architect and implement robust cloud-based data solutions using technologies such as AWS (S3, Redshift, Glue), Azure (Data Lake, Synapse), or Google Cloud (BigQuery, Dataflow).
• Work with big data technologies such as Apache Hadoop, Spark, Kafka, and NoSQL databases (e.g., MongoDB) to efficiently handle large-scale data processing.
• Support the optimization of AI and data pipeline workloads using best practices (CI/CD, model versioning, monitoring, drift detection).
• Implement APIs and microservices for seamless integration into enterprise applications.
• Ensure data infrastructure and data management tools/platform aligns with security, compliance, and regulatory requirements (PCI-DSS, GDPR).

• Familiar with IBM i and z, especially on managing datalake and deploying datawarehouses

• Data Quality, Governance & Automation:

• Ensure data quality, integrity, and security throughout the data lifecycle by creating and enforcing data governance policies.
• Optimize ETL/ELT jobs and data pipelines for improved performance and scalability.
• Monitor, evaluate, and optimize pipelines (through AI agents usage) for continuous improvement and operational excellence.
• Implement data quality checks and validation processes.
• Develop and maintain data monitoring and alerting systems.
• Implement and maintain data governance.

• Establish the processes and tooling for deploying, monitoring, and maintaining machine learning models in a production environment to ensure reliability and performance.

• Technology & Innovation:

• Mentor and guide junior data scientists and engineers
• Collaborate with AI engineers, business analysts, and other stakeholders to identify data needs and deliver solutions that meet business objectives.
• Stay updated with industry trends and emerging technologies to enhance data service practices within the organization.

What are we looking for

We look for big thinkers. People who can drive positive change, innovate, step up and show what's next – people with passion, can-do attitude and a hunger to learn and grow. In practice this means:

• Qualifications & Skills:
• Bachelor's or Master's degree in Computer Science, Data Science, Engineering, or a related field.
• 10+ years of experience in data science, with strong emphasis on big data analytics, big data implementation, machine learning models, and implementing real-time/batch data jobs.
• Extensive experience with ETL tools and processes (e.g., Apache Airflow, Talend, Informatica).
• Proficiency in programming languages such as Python, Java, or Scala.
• Hands-on experience with cloud platforms (AWS, Azure, or Google Cloud) and their data services.
• Strong understanding of database technologies, both relational (e.g., PostgreSQL, MySQL, Db2) and non-relational (e.g., MongoDB, DynamoDB).
• Experience with infrastructure as code tools such as Terraform.
• Experience with stream processing technologies (e.g., Kafka, Kinesis).
• Experience with data visualization tools (e.g., Tableau, Power BI).
• Experience with machine learning concepts and frameworks (e.g., TensorFlow, PyTorch) is a must.
• Experience with data modeling, data warehousing, data lake house and data governance practices.
• Excellent problem-solving skills.
• Strong communication skills and the ability to convey complex technical concepts to non-technical stakeholders.
• Knowledge of regulatory and compliance standards in the payments industry (PCI-DSS, GDPR).

Perks & Benefits

At Worldline you'll get the chance to be at the heart of the global payments technology industry and shape how the world pays and gets paid. On top of that, you will also:

• Flexible benefits (
  applicable for Malaysia only
  )
• Special birthday leave
• Hybrid working model with flexibility
• Comprehensive health insurance coverage
• Professional development and training opportunities
• Global exposure working with teams across regions

Shape the evolution

We are pushing towards the next frontiers of payments technology, and we look for big thinkers to join our journey. People with passion, can-do attitude and a hunger to learn and grow. Here you'll work with ambitious colleagues from around the world, take on unique challenges as a team, and make a real impact on the society. And with our empowering culture, strong technology and extensive training opportunities, we help you accelerate your career. Wherever you decide to go. Join our global team of over 18,000 innovators across 40+ countries, and shape a tomorrow that is yours to own.

Learn more about life at Worldline