About the role

Senior Integrations Engineer architecting backend systems for an AI company. Lead critical integrations and payment flows in a fast-paced, dynamic environment.

Responsibilities

Own end-to-end execution for backend systems and infrastructure
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
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
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 DualEntry 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 DualEntry’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: PostgreSQL, 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.

Equity: $30,000+ USD
Time Off: 27 PTO days (incl. public holidays)
Remote-first team - the fastest team you will have ever worked with
Visa sponsorship option for relocation to NYC within 2+ years
Enjoy a learning & development budget for courses, certifications, and language learning to keep growing your skills
Work where you feel most productive at co-working spaces or from your home office with support for setup, internet, and phone