Full Stack Developer — Chicago, IL

Full-Stack Integration Developer

HCE8y GJXnkhSv is hiring a Senior Full-Stack Integration Developer. You’ll build secure enterprise web applications and integrate digital identity-verification solutions using Experian or comparable platforms. You’ll work closely with architects, cybersecurity teams, QA, infrastructure, and vendors to deliver accessible, auditable digital services.

Responsibilities

• Full-Stack Application Development: Design, develop, and maintain secure web applications, APIs, and business logic across the SDLC.

• Front-End UI Development and User Experience: Build responsive, accessible UIs for identity enrollment, verification workflows, form validation, and error handling.

• Back-End Services and Identity Verification Integration: Develop secure RESTful services that integrate Experian identity-proofing APIs, covering verification workflows, risk-signal processing, decision responses, and exception management.

• API Security, Authentication, and Authorization: Secure integrations using OAuth 2.0, OIDC, mTLS, API gateways, certificates, and secrets management.

• Identity Security, Data Protection, and Compliance: Apply NIST SP 800-63 principles, encryption, data masking, PII protection, and audit logging.

• Application Testing, Troubleshooting, and Performance Optimization: Run unit, integration, API, accessibility, performance, and security tests. Resolve defects through root-cause analysis.

• DevSecOps, Monitoring, and Release Management: Support CI/CD pipelines, code reviews, monitoring, SIEM integration, and controlled deployments with rollback procedures.

• Technical Documentation and Cross-Functional Collaboration: Maintain designs, API documentation, and runbooks. Work closely with architects, security, QA, and Experian vendor support.

Qualifications

• 5+ years of full-stack development and integration experience

• Strong HTML5, CSS3, JavaScript/TypeScript, and Angular or React skills

• Hands-on back-end and REST API development experience

• Experience integrating Experian or similar identity-verification services

• Solid knowledge of API security, authentication, and data protection

• Experience with Git, automated testing, CI/CD, and DevSecOps practices

Preferred experience

• Public-sector or digital identity project experience

• WCAG accessibility implementation

• API testing, vulnerability scanning, and performance monitoring tools

• Production support experience coordinating with external vendors