Senior Software Engineer

Our client is building the agentic infrastructure for the future of the world's largest financial institutions. They develop AI agents that handle millions of live, end-to-end interactions for Fortune 500 banks and insurers. With volume 3x-ing monthly, they are solving high-scale problems most startups never encounter: real-time voice AI, legacy banking integration, and complex US regulatory frameworks.

With over $1M revenue per employee and 12x YoY growth, this is a rare opportunity to join a high-traction, "AI-first" company where the product is already proven and the mission is to scale.

As a Software Engineer, 95%+ of your time will be spent coding and building. You will own core product features—from backend systems and APIs to voice infrastructure—shipping code daily that goes live for global financial giants.

- 5+ years of software engineering experience.
- You’ve previously worked at a Series A (or similar) startup and navigated the chaos of hypergrowth.
- Strong backend fundamentals with the ability to own features end-to-end (design to production).
- Proficiency in TypeScript and/or Python.
- Experience refactoring legacy infrastructure into sustainable, scalable architectures.

Our client values craft and ownership over process. While they use dailies and ticket grooming, the process remains light to keep the focus on building.

- They hire people whose judgment they trust and then get out of the way.
- You won't just pull from a backlog; you'll identify what needs to happen and build it.
- You will see a direct line between your code and enterprise revenue.

- Former Head of Eng or Tech Lead (Series A/B) who built core infra from scratch.
- A Senior Engineer who was among the first 10 hires at a success story and wants to do it again.
- Someone who has gone from zero to Series B/C and misses the high-autonomy phase.
- A Staff Engineer at a later-stage company who is tired of red tape and wants to move fast.