Backend Software Engineer (Senior/Staff)

DualEntry; United States; Remote; USD 100,000 - 175,000; Full time

Job summary

DualEntry is hiring a senior backend engineer to own end-to-end backend systems and infrastructure. You’ll build APIs, services, and real-time accounting features while collaborating with founders, product, and frontend engineering to turn complex workflows into secure, scalable solutions.

We expect 8+ years of backend experience, strong PostgreSQL/SQL skills, and production-ready API design. AWS, CI/CD, and production readiness are essential.

Qualifications

• 8+ years of backend engineering experience.
• Strong PostgreSQL/SQL, ORMs, migrations, and schema design.
• AWS experience and production API design/testing.
• CI/CD, deployment, and production readiness.

Responsibilities

• Own end-to-end backend systems and infrastructure.
• Build APIs, services, and real-time accounting features.
• Collaborate with founders, product, and frontend engineers to simplify workflows.
• Design, implement, and ship production-ready features at high speed.
• Manage data migrations, scaling challenges, and integrations.
• Drive measurable outcomes that boost product velocity and stability.

Skills

Backend engineering

High-growth experience

English fluency

API design

Tools

PostgreSQL

SQL

ORMs

Migrations

Schema design

AWS

Job description

• Remote
• Remote , New York , United States

• $100,000 - $175,000 per year

About DualEntry

Founded in 2024, DualEntry is one of the world’s fastest-growing AI startups.

At DualEntry, the future of finance is being written today. ERP is one of the largest fintech markets in the world ($220,000,000,000+). Yet, tens of thousands of companies are still using on-premise systems, and the industry has not seen new entrants in more than 30 years.

Our AI-native ERP lets accounting teams achieve more in less time. $5M-ARR businesses to NYSE-listed companies trust DualEntry to automate away manual data entry work with AI. We’re finally making the one-person finance team a reality and putting the pain of legacy ERPs from the 1990’s in the past.

We operate with urgency and ownership. We move fast.

Why This Role Matters Now

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Since starting 18 months ago, we’ve raised $100,000,0000+ from world-class investors such as Lightspeed Venture Partners, Khosla Ventures, Contrary Ventures and Google Ventures, as well as more than 20 angel investors who’ve built, scaled, and exited some of the most impactful companies of the last decade.

We got there by moving incredibly fast and hiring an exceptionally sharp, hard-working and deeply committed team from leading tech and accounting companies — Ramp, Meta, Microsoft, Lyft, PwC, Deloitte, J.P. Morgan, Bloomberg, Sage, Xero and Intuit. And some of us don't have a fancy logo on our resume and are here for a shot to prove ourselves.

We’re a small team, growing fast with huge momentum - join early.

This is an intense, hands-on role with full ownership. We expect you to push for excellence and raise the bar.

Location:Remote - this role is available across all countries with 4hr+ overlap for the US ET timezone (NYC HQ)

Where you'll create impact

• You’ll own end-to-end execution for backend systems and infrastructure
• You’ll build APIs, services, and real-time systems handling complex accounting logic
• You’ll collaborate with founders, product, and frontend engineering to turn complex workflows into secure, performant systems
• You’ll design, implement, and ship production-ready features at high speed
• You’ll manage data migrations, scaling challenges, external integrations, and end-to-end reliability
• You’ll drive measurable outcomes that accelerate DualEntry’s product velocity and stability

What sets you up for success

• Hardcore work ethic and high agency
• 8+ years of experience in backend engineering
• Proven track record in high-growth, high-ownership environments
• Strong skills in PostgreSQL, SQL, ORMs, migrations, and schema design
• Experience with AWS or comparable cloud infrastructure
• Strong API design and testing experience
• Understanding of CI/CD, deployment, and production readiness
• Bonus: expertise in Python and modern frameworks (FastAPI, Flask, or Django)
• Ability to manage complex systems with evolving requirements
• Fluent English (C1+) with clear communication

How You Operate

Pragmatic: you like to move forward and make decisions based in reality (not theory). We don't debate if Cassandra has the most theoretical scalability -- we use Postgres until it breaks

Hard working: 'You can work long, hard, or smart, but [here] you can't choose two out of three