Software Engineer

Responsibilities

• Architecting the Future of Payments: Design and ship production services and APIs powering global payments, including some of our flagship products that move serious volume.
• AI-Augmented Engineering: You will heavily use claude code, codex, and in-house agentic coding tools to multiply your impact, automate common workflows, answer your own questions, and more. We're not stingy with tokens, and we expect you to get real leverage from these tools, not just autocomplete.
• Polyglot Fullstack Execution: You'll be shipping high-quality code across Python and TypeScript with the curiosity to chip in with other languages like Go and Rust.
• Fueling High-Velocity Growth: Build at the intersection of AI, fintech, and Bitcoin infrastructure (and eat well, lunch is on us)

Requirements

• We are seeking high-velocity builders who thrive in the "zero-to-one" phase of engineering and bring intensity to everything they create.
• Mission-Driven Technical Curiosity: You have a deep-seated interest in fintech, crypto, or related technologies. More importantly, you are energized by the challenge of bringing Bitcoin, stablecoins, and open payments to mass adoption through real-world applications.
• We will consider for employment qualified applicants with criminal histories in a manner consistent with the requirements of the State of California Fair Chance Initiative for Hiring.

Benefits

Additional Information

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're hiring new grads to help build the next generation of open payments infrastructure. You'll ship production code across our stack, work directly with senior engineers, and build APIs that large companies use to move real money around the world. We move fast and we expect a lot. You'll own real projects end-to-end early, with tight feedback loops from senior engineers, and the AI tooling (and unlimited token budget) to actually move at the pace we're hiring for. You'll learn a ton incredibly quickly, and you'll feel the thrill and pride of having a real impact on products that matter deeply to the company and our customers. If you want to be one of many cogs at a big company, this isn't it. If you want to ship something every day and see it matter, keep reading.

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