Staff Full-Stack Engineer

Posted 2 Days Ago
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New York, NY, USA
Hybrid
220K-300K Annually
Expert/Leader
Payments • Software
The Role
Build and own full-stack treasury products from data model through user interface. Lead technical decisions, shape product direction with product partners, use AI-assisted development tools, and collaborate with a distributed engineering team in Tel Aviv. The role requires deep backend and frontend expertise, rapid product development experience, and ownership appropriate for a staff-level engineer.
Summary Generated by Built In

Who are we?

Applied AI for liquidity.

Corporate finance teams still manage cash by hand — stitching together spreadsheets, bank portals and ERP data across Treasury, AR and AP. Most treasury tools stop at visibility: a dashboard someone still has to read, interpret and act on.

Nilus goes further. We're building an agentic workforce for treasury — AI agents that reconcile cash, forecast liquidity and automate finance ops across every bank and ERP, in one connected system for Treasury, AR and AP. 

We're a Series A company backed by Bessemer Venture Partners, Felicis, Perpetual Growth and Better Tomorrow Ventures, led by a team of ex-fintech pros transforming the finance function.

The role

This is our first senior engineering seat in New York. You'll work directly with our Head of AI, building the products we're investing in next, alongside our R&D team in Tel Aviv.

It's a hands-on staff role with real ownership. You'll build features end to end — data model through interface — and have genuine input into what we build, not only how.

What you'll do

  • Design and build new products and features across backend and frontend
  • Own technical decisions on the work you lead, and raise the engineering bar around you
  • Work closely with product on shaping what ships
  • Use AI coding tools (Claude Code, Codex) as a core part of how you work
  • Collaborate day to day with our engineering team in Tel Aviv

What we're looking for

  • 8–12+ years as a software engineer, at staff level or equivalent scope
  • Genuine full-stack depth — you've built and owned both backend and frontend
  • Strong command of our stack: TypeScript, Node.js, Postgres, tRPC, Vercel, AWS
  • Experience building products from the ground up, and comfort moving quickly
  • Fluency with AI-assisted development (Claude Code, Codex, or similar)

Nice to have

  • Product sense and experience partnering closely with PMs
  • Experience building agentic or LLM-powered product features
  • Fintech, payments, banking or treasury background
  • Experience working with a distributed engineering team across time zones

Compensation

The base salary range for this role is $220,000 – $300,000. Actual base pay will depend on experience, skills and scope. The role also includes equity and a full benefits package (medical, dental and vision).

Nilus is an equal opportunity employer. We consider all qualified applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, veteran status, or any other characteristic protected by law.

Skills Required

  • 8-12+ years of software engineering experience at staff level or equivalent scope
  • Genuine full-stack depth, including ownership of backend and frontend systems
  • Strong command of TypeScript, Node.js, Postgres, tRPC, Vercel, and AWS
  • Experience building products from the ground up
  • Comfort moving quickly in a product development environment
  • Fluency with AI-assisted development tools such as Claude Code or Codex
  • Product sense and experience partnering closely with product managers
  • Experience building agentic or LLM-powered product features
  • Fintech, payments, banking, or treasury experience
  • Experience working with distributed engineering teams across time zones
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The Company
HQ: New York, NY
21 Employees
Year Founded: 2021

What We Do

Nilus is a plug-and-play platform that automates reconciliation, reporting, and payment workflows to empower finance teams with financial transparency and complete control. By unifying data from your payment providers, banks, platform, and ERP, Nilus creates a single source of financial truth for all your payment activity. Nilus provides a seamless plug-and-play experience for financial operators. With our automated workflows, pre-built data connectors, and smart reconciliation algorithms, Nilus eliminates dependence on tech teams and spreadsheets to get the job done.

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