Launch global accounts, payments, cards, and stablecoins under your brand with one integration. Local rails in 65+ countries, real-time settlement, your economics. Backed by a16z.
About the role
We are looking for engineers who enjoy building and shipping quickly, learning how other teams work, and seeing their work change how an entire company operates. As a Senior Software Engineer on the Data & AI team, you'll expand Lighthouse, our internal data and AI platform, into the layer that lets every function at Lightspark run on trusted data and AI agents.
What they're looking for
- 4+ years experience shipping and maintaining production systems, data engineering, ML engineering, and backend/full-stack backgrounds all fit
- You've built an internal platform or workflow system that other teams adopted, not just features on top of one
- You've built with LLM APIs, agent frameworks, and MCP in production, beyond prompting, and you know what belongs in code versus a model
- Strong fundamentals in TypeScript/Node or Python and the willingness to work in both, plus fluency with a cloud data warehouse such as BigQuery, Snowflake, or Databricks
- You can sit with a non-technical team, understand how their work actually happens, and come back with a system
- Comfortable working with ambiguity in a startup environment
More about this role
Lightspark is creating the Money Grid, modern, open financial infrastructure that makes payments accessible, affordable, and instant for businesses and users worldwide. We're challenging the status quo, updating the current system, and empowering our partners to build better solutions. Together, we're building the most advanced financial infrastructure, open, instant, and global, inspiring a future where anyone, anywhere can access the full potential of digital money.
We are looking for engineers who enjoy building and shipping quickly, learning how other teams work, and seeing their work change how an entire company operates. As a Senior Software Engineer on the Data & AI team, you'll expand Lighthouse, our internal data and AI platform, into the layer that lets every function at Lightspark run on trusted data and AI agents.
Most of the value in applied AI comes from the connective work: wiring models to a company's data, its tools, and the way people actually work, then getting the result adopted. We've built that layer for analytics, where Lighthouse now handles most of what our team used to do by hand and is used across the company. This role extends it to Sales, Finance, Ops,...
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