Member of Technical Staff, Platform Engineer

📋 Job Overview

Arca is a wealth management firm built from the ground up with AI. We're rebuilding wealth management from the inside with AI, creating an Iron Man suit for advisors that takes over low-leverage work so they can focus on what actually requires a human. The platform keeps a living understanding of each client, remembers details, and adjusts to life changes. We started by acquiring firms managing over $1B in client assets and are now growing client by client on the strength of the experience itself. We're a small team of 12 based out of NYC with a focus on engineering.

🏢 About Arca

Arca is a wealth management firm built from the ground up with AI. Most people get financial advice that's reactive: an annual check-in, a plan that's a document instead of a living thing, a relationship where you're one of three hundred clients your advisor is trying to remember. We think that's backwards. The kind of service that used to require a team of specialists behind you, the kind that makes you feel like the only person in the room, should be available to far more than the ultra-wealthy.

So we're building it. We're not SaaS — we are the wealth management business, rebuilding it from the inside with AI. Our platform is an Iron Man suit for advisors: it takes over the low-leverage work so they can focus on what actually requires a human, showing up with empathy, context, and judgment. Underneath, it keeps a living understanding of each client. It remembers the thing you mentioned once, six months ago. It notices when your life changes — a new job, a new kid, a market shift — and adjusts before you think to ask. You won't see the technology. You'll just notice your advisor seems to know you better than any financial professional ever has.

That's the product we're growing: client by client, on the strength of the experience itself. We started by acquiring firms managing over $1B in client assets, which gave us real advisors, real clients, and real financial outcomes to build against from day one. But acquisition was the starting line. The bet is that an advisor backed by this platform delivers something good enough that clients come to us on their own.

It's a $20T market, and we think it's ready to be rebuilt.

— Rron, CEO

The receipts

Stage: Series A, $64M raised

Backed by: General Catalyst, Index Ventures, Venrock

Board & Advisors: Former CEO of Vanguard, Former CFO of Schwab, Founder of Altruist, Morgan Housel (author of The Psychology of Money)

The team

We’re small on purpose. We’re a team of 12 based out of NYC and we’re engineering heavy with 8 engineers. We hail from high growth startups like Stripe, Ramp, Rippling, Plaid, Doordash, & Glean.

We’re fully in-office in Flatiron, five days a week—lunch together, coffee breaks, basketball games, happy hours.

🎯 The Role

As a Member of Technical Staff focused on Platform, you'll own the foundation everything else runs on. The infrastructure, backend systems, and developer experience that let a 12-person team ship agents into a regulated, high-stakes domain without slowing down. One framing we keep coming back to: agents are the primary users of our system of record, and they operate at scale, across every client, all the time. That puts unusual demands on the platform underneath — reliability, cost, and performance aren't afterthoughts, they're the product. If you build it, you own it.

✅ Key Responsibilities

• Build and own core infrastructure and backend systems. The services, data stores, and APIs that everything else is built on—designed for a workload where non-human agents are the heaviest, most constant users.
• Build safe execution for agents. The sandbox where agents write and run code and take real actions, plus the controls that let them reach our backend and databases without doing damage—versioned SDKs, scoped permissions, rate limits, isolation.
• Build developer experience and internal efficiency. The build, test, deploy, and observability tooling that determines how fast eight engineers can ship.
• Build performance and cost systems. The systems that keep agents fast and correct under real load, and keep our infrastructure spend sane as we scale.

📌 Required Qualifications

• Experience building and owning core infrastructure and backend systems.
• Experience with safe execution environments and security controls.
• Experience with developer experience and internal tooling.
• Experience with performance and cost optimization.

🎁 Benefits

Salary: $200K – $300K • Offers Equity • Offers Bonus

🛂 Visa & Eligibility