Remote Fintech Integration Engineer (Onboarding)

Atrium Staffing LLC; New York (NY); Remote; USD 69,000 - 112,000; Part time

Benefits offered by this job

Fully remote

Contract-to-hire potential

Atrium Care Package

Job summary

Atrium Staffing LLC is seeking an experienced Integration Engineer to support onboarding of banking and lending partners onto established integration frameworks. This role focuses on configuring, testing, and launching integrations with REST APIs and middleware, rather than designing new architecture.

You will work with financial institution partners and internal teams to gather requirements, map data, and validate end-to-end workflows.

Qualifications

• 6+ years in technical integrations or related roles.
• Strong REST API & JSON experience including authentication, mapping, and testing.
• Experience with middleware or iPaaS platforms and API-based integrations.
• Experience gathering requirements and translating workflows into integration plans.
• Ability to troubleshoot independently and drive implementations to resolution.
• Experience working with external customers or banking partners.

Responsibilities

• Own onboarding of banking partners from requirements through production launch.
• Configure and support integrations using REST APIs, SFTP, and existing core banking connectors.
• Translate business workflows into integration configurations and implementation plans.
• Collaborate with partner teams to resolve blockers and maintain launch readiness.
• Execute end-to-end workflow validation including onboarding, funding, and data updates.
• Troubleshoot API, data mapping, and middleware issues; support post-launch operations.

Skills

Integration engineering

REST APIs

Data mapping

iPaaS platforms

Banking fintech

Education

No degree required

Tools

Workato

MuleSoft

Boomi

Tray.io

Postman

SQL

Job description

Atrium Staffing LLC is seeking an experienced Integration Engineer to support onboarding of banking and lending partners onto established integration frameworks. This role focuses on configuring, testing, and launching integrations with REST APIs and middleware, rather than designing new architecture.

You will work with financial institution partners and internal teams to gather requirements, map data, and validate end-to-end workflows.