Sr. Data Engineer at Visa – SG - Singapore | Jobyssey

About Us
Visa is a world leader in payments technology, facilitating transactions between consumers, merchants, financial institutions and government entities across more than 200 countries and territories, dedicated to uplifting everyone, everywhere by being the best way to pay and be paid.

At Visa, you'll have the opportunity to create impact at scale — tackling meaningful challenges, growing your skills and seeing your contributions impact lives around the world.

Join Visa and do work that matters – to you, to your community, and to the world. Progress starts with you.

Job Description

Visa’s Technology Organization is a community of problem solvers and innovators, reshaping the future of commerce. We operate one of the world’s most advanced payment processing networks, enabling secure, reliable, and scalable transactions across millions of merchants, financial institutions, and consumers globally.

Our teams build and operate complex distributed systems at massive scale, solving challenges across payment flows, real-time data processing, cybersecurity, and next-generation digital platforms.

Within this, Value Added Services (VAS) – Digital Marketing is a key growth area for Visa, focused on building differentiated, data-driven solutions that extend the value of the Visa network beyond payments.

About the Team:

You will join a high-performing engineering team building GenAI-powered platforms and applications that enable innovation across Visa’s technology ecosystem.

The team focuses on:

Developing intelligent, AI-driven applications powered by large language models
Integrating generative AI capabilities into enterprise platforms and workflows
Building scalable systems that combine AI, data, and distributed architectures
Enabling automation, developer productivity, and intelligent decision-making

While these capabilities rely on strong data foundations, the primary focus is on applying AI and generative AI to solve real-world business problems at scale, with enterprise-grade security and reliability.

Job Summary:

Senior Data Engineers collaborate closely with product teams, business partners, and cybersecurity teams to define and deliver AI- and data-driven products and capabilities. In this role, you will help design and build scalable platforms that enable the adoption of generative AI across the organization.

You will play a key role in developing GenAI-powered applications and platforms, including integrating with leading large language models such as OpenAI and Anthropic, and enabling their safe, scalable, and efficient use in enterprise environments.

You will independently understand the broader data and AI ecosystem, including security, privacy, and governance requirements, and apply this knowledge to design robust and responsible solutions. You will contribute to technical designs, evaluate architectures and tools, and present scalable solutions to peers.

This role emphasizes building platforms and services that power AI and GenAI applications, while ensuring strong data foundations, system reliability, and enterprise-grade security.

Staying current with industry trends in AI, data engineering, and distributed systems, you will help drive innovation and continuously improve how technology is applied to solve complex business problems.

All roles require digital fluency, including hands-on experience or familiarity with Generative AI tools (e.g., Claude Code, Cline, Codex, and GitHub Copilot) to enhance developer productivity and enable intelligent engineering workflows.

Key Responsibilities:

Collaborate with cross-functional stakeholders to define requirements for AI- and data-driven features and platforms
Design and document scalable components that support AI/GenAI applications, APIs, and data workflows
Develop high-quality, secure, and maintainable code following engineering best practices
Build and enhance platform capabilities that integrate data, APIs, and AI models into production systems
Develop and integrate applications with large language model providers such as OpenAI and Anthropic to deliver GenAI-powered solutions
Design and implement prompt workflows, context handling, and orchestration patterns for GenAI use cases
Contribute to code reviews, incorporate feedback, and take ownership of platform components or services
Develop and maintain data pipelines, services, and orchestration workflows supporting AI use cases
Implement validation, monitoring, and data quality checks to ensure system reliability and accuracy
Apply security, privacy, and governance principles across data and AI systems
Troubleshoot issues across distributed systems and improve system observability and resilience
Build automation and tools to improve developer productivity, deployment efficiency, and platform operations
Support platform maintenance, upgrades, and security remediation activities

Visa requires at least 3 days in office, expectations of these days will be confirmed by your Hiring Manager.

Qualifications

Basic Qualifications:

2+ years of relevant work experience with a Bachelor's degree, or 5+ years of relevant work experience
Strong core programming skills in Java, Python, or similar languages
Experience building and operating microservices-based architectures and APIs
Experience working with real-time data streaming or event-driven systems
Experience working with cross-functional teams to clarify requirements and define technical solutions
Experience designing and documenting technical components for data platforms, services, or applications
Experience writing production-grade code and applying coding standards, security practices, and testing methodologies
Experience conducting unit testing and participating in integration or user acceptance testing
Experience building automation tools and frameworks supporting data processing or application workflows
Experience working with data extraction, transformation, and querying techniques across large datasets
Experience ensuring system reliability through data quality validation, monitoring, and performance tuning
Experience troubleshooting and resolving issues in distributed systems, data pipelines, or backend services
Experience supporting production systems, including software upgrades, maintenance, and security remediation

Preferred Qualifications:

3+ years of work experience with a Bachelor’s degree or 2+ years with an advanced degree
Experience working with Generative AI systems, including integrating large language models into applications
Hands-on experience building applications using LLM providers such as OpenAI, Anthropic, or similar platforms
Familiarity with modern GenAI development practices, including prompt design, context management, and orchestration patterns
Experience with backend platforms, APIs, and microservices architectures supporting AI-driven applications
Experience with data processing or streaming frameworks (Kafka)
Experience presenting technical designs and solutions to engineering peers
Experience staying current with emerging trends in AI, GenAI, and distributed systems, and applying them to real-world use cases
Experience participating in code reviews and mentoring engineers on best practices
Strong problem-solving skills and ability to work in fast-paced, ambiguous environments

Visa is an EEO Employer

Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, sexual orientation, gender identity, disability or protected veteran status. Visa will also consider for employment qualified applicants with criminal histories in a manner consistent with EEOC guidelines and applicable local law.

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