OpenCFO · 1 day ago
Founding Software Engineer
Seattle, WA
Full-time
Hybrid
Senior Level
$150K/yr - $220K/yrOpenCFO is building an AI-native operating system for the modern CFO office, aiming to unify complex finance systems into a single platform. The Founding Software Engineer will own critical backend systems and contribute to product and engineering culture from the ground up.
Computer Software
Responsibilities
Own core backend systems end-to-end, including APIs, data models, and services powering FX, payments, and financial workflows
Design and build scalable services in Go, with a strong focus on correctness, performance, and reliability
Work deeply with AWS infrastructure, including deployment, observability, security, and cost optimization
Design and operate Postgres schemas for financial-grade systems (idempotency, consistency, auditability)
Build and integrate AI-powered features using Gemini (and future LLMs) to automate workflows like reconciliation, invoice processing, and decision support
Collaborate directly with founders on product decisions, system architecture, and technical tradeoffs
Set engineering foundations: coding standards, system design patterns, CI/CD, and best practices
Move fast while maintaining quality, balancing startup speed with long-term maintainability
Qualification
Required
Strong experience with Go in production systems
Solid backend fundamentals: APIs, distributed systems, concurrency, and data modeling
Hands-on experience with AWS, including deploying and operating production services
Deep familiarity with Postgres, including schema design, indexing, and performance considerations
Comfort working in early-stage environments with ambiguity, ownership, and rapid iteration
Product mindset — you care about why you're building something, not just how
Strong problem-solving skills and the ability to make pragmatic tradeoffs
Preferred
Experience building fintech, payments, or financial systems
Exposure to LLMs / AI systems (Gemini, OpenAI, etc.) in real products
Experience with compliance-heavy systems (audit logs, permissions, approvals)
Previous startup or early-team experience
Benefits
Founding Equity: A substantial ownership stake (1.0% – 2.5%) in the company. You are a true partner in our success.
Comprehensive Health Coverage: 100% Premium coverage for Medical, Dental, and Vision insurance.
Radical Flexibility: We care about shipping, not hours. Work where and when you are most effective.
Early Exercise: Opportunity to early exercise your stock options for potential long-term tax savings (QSBS).
Company
OpenCFO
OpenCFO is an AI-native finance operations platform built for modern finance teams.
Founded in 2025
2-10 employees
Funding
Current Stage
Early StageCompany data provided by crunchbase