Arc

Staff Software Engineer

Arc

full-time

Posted on:

Location Type: Hybrid

Location: New York City • New York • 🇺🇸 United States

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Salary

💰 $180,000 - $300,000 per year

Job Level

Lead

Tech Stack

Distributed SystemsRuby on Rails

About the role

  • Lead architecture and development of Arc’s finance and AI systems
  • Own end-to-end design for major platform surfaces across cash management, treasury, and debt marketplace.
  • Contribute to Arc’s AI agent, *Archie*, evolving from insights → supervised actions → controlled execution inside the bank.
  • Build mission-critical, high-reliability financial infrastructure
  • Scale our banking rails, KYC/KYB onboarding flows, ledgering systems, and fund movement pipelines.
  • Deeply consider safety, audibility, and security in every decision.
  • Drive Arc’s automation roadmap
  • Automate lending workflows (target: 90% automation).
  • Power the AI CFO agent’s ability to take actions, not just deliver insights.
  • Own strategic technical decisions
  • Identify and implement “fast moving water” opportunities.
  • Influence product direction with a strong owner mindset.
  • Mentor engineers and elevate engineering quality across the team.

Requirements

  • 5–7+ years of software engineering experience (strong IC track record).
  • Startup experience + exposure to at least one mid-size or large engineering environment.
  • Strong system design fundamentals and experience scaling distributed systems.
  • Solid understanding of LLMs, agents, embeddings, or vectorized workflows.
  • Background in fintech, treasury, payments, or regulated environments (Preferred).
  • Experience with document understanding, orchestration agents, or AI feature development (Preferred).
  • Familiarity with high-security data systems, audibility, or compliance-heavy infra (Preferred).
Benefits
  • The total rewards package at Arc includes base salary, equity (stock options), and benefits.

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard skills
software engineeringsystem designdistributed systemsLLMsagentsembeddingsvectorized workflowsautomationdocument understandingorchestration agents
Soft skills
leadershipmentoringinfluencingstrategic decision makingowner mindset