Identity & Security Core Developer — Passwordless & MFA

Horizontal Talent; Brooklyn (OH); On-site; USD 120,000 - 171,000; Full time

Job summary

Horizontal Talent seeks a Transmit Core Developer to design and deliver secure authentication experiences for digital banking platforms. You will work on identity orchestration, passwordless authentication, MFA, and integrations supporting a frictionless onboarding and login journey.

You will design and implement registration, login, and account recovery journeys, while integrating security APIs and SDKs across web and mobile banking apps.

Qualifications

• Hands-on experience with Transmit Security and the Mosaic platform.
• Strong knowledge of REST APIs, OAuth 2.0, OpenID Connect, and SAML.
• Development experience with Java, JavaScript, .NET, or similar enterprise technologies.
• Background in IAM and CIAM solutions.
• Experience with MFA, FIDO2, WebAuthn, and passkey authentication.
• Understanding of API security, token handling, and encryption concepts.
• Familiarity with cloud environments such as AWS, Azure, or hybrid setups.
• Experience working in Agile and DevSecOps environments.
• Ability to troubleshoot complex technical issues and communicate clearly across teams.

Responsibilities

• Design, build, and support customer identity and authentication solutions using Transmit Security and Mosaic platforms.
• Develop and enhance registration, login, multifactor authentication, and account recovery journeys.
• Integrate security APIs and SDKs into web and mobile banking applications.
• Configure identity orchestration flows and adaptive authentication policies.
• Support passwordless and passkey-based authentication initiatives.
• Partner with cybersecurity, fraud, risk, architecture, and digital banking teams to improve security and user experience.
• Investigate and resolve authentication issues, integration defects, and production support incidents.
• Contribute to architecture reviews and help ensure solutions align with security and banking standards.
• Create technical documentation, implementation guidelines, and support procedures.
• Assist with vendor collaboration and platform upgrade efforts.

Skills

Transmit Security

Mosaic platform

REST APIs

OAuth 2.0

OpenID Connect

SAML

Java

JavaScript

.NET

IAM

MFA

FIDO2

WebAuthn

AWS

Azure

Agile

DevSecOps

Troubleshooting

Tools

Okta

Job description

Horizontal Talent seeks a Transmit Core Developer to design and deliver secure authentication experiences for digital banking platforms. You will work on identity orchestration, passwordless authentication, MFA, and integrations supporting a frictionless onboarding and login journey.

You will design and implement registration, login, and account recovery journeys, while integrating security APIs and SDKs across web and mobile banking apps.