Senior Bank & Integrations Engineer

Why This Role Matters Now

Since launching 18 months ago, we’ve raised $100M with backing from Lightspeed, Khosla, and Google Ventures. We got there by moving incredibly fast and hiring the best and brightest talent. To accelerate that momentum, we’re growing our team. Come and join us at one of NYC’s fastest‑growing startups and have an impact on our product from day one.

As our Senior Bank & Integrations Engineer
, you’ll drive tens of integrations between Dual Entry and external providers end‑to‑end, build thousands of bank connections from the ground up, and coordinate reliable payments flows on the platform.

You’ll be joining at an early and defining moment. Your work will directly shape our product, customers, and trajectory.

See below what it’s like to work at Dual Entry:

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

Founded in 2024, Dual Entry is one of NYC’s fastest‑growing AI startups.

Dual Entry is changing the future of finance. Our AI‑native ERP lets teams achieve more in less time. $5M‑ARR businesses to NYSE‑listed companies trust Dual Entry to automate away busywork and fuel their growth with powerful reporting and insights. We’re making the one‑person finance team a reality and putting the pain of legacy ERPs from the 1990s in the past.

We operate with urgency and ownership. We move fast.

• Own end‑to‑end execution for backend systems and infrastructure

• Own secure connectivity with banks and partners by provisioning host‑to‑host connections (SFTP), managing endpoint setup, and handling SSH + PGP key exchange and rotations.

• Implement and validate end‑to‑end payment and data pipelines — from ISO 20022 parsing/validation (PAIN, CAMT) to real‑world bank testing (penny tests), reconciliation, and production readiness.

• Lead integration projects across both banking and enterprise systems, defining scope, designing the integration approach, and driving delivery for domestic + international payment flows.

• Build and maintain customer‑facing integrations between Dual Entry and third‑party platforms (AP/AR tools, billing, CRM, payroll, data warehouses), ensuring data accuracy, reliability, and clean sync behavior.

• Debug and resolve connectivity, payment, and statement issues by tracing through logs, monitoring/observability tools, file payloads, and database records.

• Increase reliability and scale by reducing manual work: automate onboarding and integration playbooks, standardize test frameworks, and build maintainable backend tooling that keeps pipelines stable.

• Drive measurable outcomes that accelerate Dual Entry’s product velocity and stability

• 8+ years building backend systems, ideally in high‑growth, high‑ownership environments where you ship fast and own outcomes end‑to‑end

• Deep expertise in Python and modern backend frameworks (FastAPI/Flask/Django)

• Strong database fundamentals:
  Postgre
  
  SQL, SQL, schema design, migrations, ORMs

• Experience building production‑grade APIs

• Hands‑on with cloud infrastructure (AWS preferred) and the full delivery lifecycle: CI/CD, deployments, monitoring and incidents

• Experience in payments, fintech, or financial services is strongly preferred

• Familiarity with payment rails and flows (SEPA, ACH, Wires, Faster Payments, CHAPS, Bacs) and payment messaging/file formats (PAIN, CAMT) is a plus.

• Able to operate in messy, evolving requirements — you design systems that scale while staying pragmatic.

• Clear communicator (C1+ English). You can collaborate with banks, customers, and teammates across time zones without things slipping.

• Hardcore work ethic and high agency

• Bonus: you’ve built bank integrations using H2H, SFTP or ISO 20022

• Significant equity ownership in one of the top AI companies in the world

• You’re joining early and will grow with Dual Entry

• Your feedback shapes the product directly

• High‑speed culture

• High‑trust environment with high expectations

• Ambitious mission - ERP is one of the largest B2B software markets in the world ($220bn per year), this is a once in a lifetime opportunity to build the next generation ERP in an…