Airwallex Limited

Senior Software Engineer, Data Platform & AI Enablement

Airwallex Limited$150K — $180K *
Information Technology
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • 5+ years of experience in large-scale distributed systems or infrastructure platforms
  • Strong understanding of computer science fundamentals, including distributed systems and networking protocols
  • Proficient in Java, Kotlin, or Go
  • Hands-on experience with Kafka, Flink, Spark, Kubernetes, or OLAP engines
  • Demonstrated ownership of complex technical challenges from design to production stability
  • Curiosity about emerging tech in AI/ML infrastructure and real-time systems

Responsibilities

  • Lead technical decision-making and custom development for core infrastructure components
  • Deep-dive into performance tuning and systems internals to ensure millisecond-level accuracy
  • Develop and integrate AI-driven products through scalable vector indexing and real-time data streaming
  • Own the full software development lifecycle for distributed systems processing petabytes of data
  • Advocate for elite software engineering practices, helping to enhance productivity across teams
  • Mentor mid-level engineers through design reviews and technical leadership

Benefits

  • Work in a dynamic environment with a global presence
  • Opportunity to tackle complex, high-visibility problems
  • Collaborate with exceptional teammates
  • Chance to accelerate personal and professional growth
  • Be part of shaping the future of global payments and banking
Full Job Description
About the team:

The Knowledge Platform team is at the heart of our company's data and AI strategy. We are building the foundational infrastructure that empowers the entire company to leverage data, AI, and ML into business impact. We accomplish this by creating platforms that handle the entire data and AI/ML lifecycle, simplifying the interface while providing proper safety and governance. This includes managing our data infrastructure (Databricks, Spark, Kafka, etc.), the technology to serve that data to our users (RAG, MCP, etc.), and the platform to host and govern these AI/ML models.

In 2026, our team's overarching mission is to evolve our full data ecosystem-encompassing both platform and models-into a fully AI agent-ready infrastructure; we will empower customers to engage directly with the data platform to extract actionable value through capabilities like analytics and natural language querying, while also upgrading the platform to deliver robust, real-time performance for instant, data-driven decision-making.

What you'll do

In this role, you will lead the architecture and construction of core infrastructure components, taking full ownership of technical decision-making and custom development from foundational storage to high-availability service layers. You will perform deep-dives into systems internals and performance tuning-focusing on state management, checkpointing, and exactly-once semantics-to ensure millisecond-level accuracy and reliability across 30+ global regions. A significant portion of your impact will involve developing the "Knowledge Platform" to power AI-driven products through scalable vector indexing, agentic workflows, and real-time data streaming.

Beyond the initial build, you will own the full SDLC for high-performance distributed systems that process petabytes of data at a global scale. As a champion of engineering rigor, you will advocate for elite software practices and contribute to shared tooling, SDKs, and automation frameworks that enhance productivity across the entire organization. Finally, you will serve as a technical beacon and mentor for mid-level engineers, driving high-quality project delivery through meticulous design reviews and hands-on technical leadership.

This is a hybrid role based in San Francisco.

Who you are:
  • Experience: Have 5+ years of experience building and operating large-scale distributed systems or infrastructure platforms.
  • First Principles Thinking: Possess a deep understanding of computer science fundamentals, including distributed systems, memory management, and networking protocols.
  • The "Builder" Stack: Are proficient in Java, Kotlin, or Go. You should have hands-on experience (or the desire to deep-dive) into the internals of Kafka, Flink, Spark, Kubernetes, or OLAP engines.
  • Ownership Mindset: Have a proven track record of taking 0-1 ownership of complex technical challenges, from initial design to production stability.
  • Curiosity & Impact: Are intrinsically motivated to explore emerging tech in AI/ML infrastructure and real-time systems to create tangible business impact.


Preferred Qualifications:
  • Hands-on design experience in crafting data processing patterns for a modern Lakehouse architecture.
  • Contribute to the design and development of standard framework modules, high-performance services, and client libraries for big data using tools like GCP, Databricks, BigQuery, DataProc, Kafka, Kubernetes, Spark, DataFlow, Google Cloud Storage, and Airflow.
  • Excellent written and verbal communication skills tailored for diverse audiences (leadership, users, company-wide).
  • Ability to rapidly evaluate various technologies and conduct proof of concepts to drive architecture design.
  • Experience thriving in a complex environment.

About Airwallex Limited

Airwallex is a financial technology company that provides cross-border payment solutions for businesses. The company was founded in 2015 by a group of entrepreneurs from Australia and China. Airwallex's platform allows businesses to make and receive payments in multiple currencies at competitive exchange rates. The company has raised over $400 million in funding to date and has offices in several countries, including Australia, China, the United States, and the United Kingdom.
Learn more about Airwallex Limited
Size
800 employees
Industry
Founded
2015

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