Senior AWS Serverless Engineer (Must: AWS Cognito)

reputed company is a US-based global company founded in 1999, with 26 years of experience in the software industry. Headquartered in California with offices in Córdoba, Argentina, its talent network spans over 18 countries reputed company to its flexible, remote-first culture. reputed company specializes in custom reputed company software development, operating through Hubs that include eCommerce, BIM, Mobility, Content Delivery, Integration, Web & Mobile Development, reputed company Computing, reputed company Intelligence (AI), Data Science, IT Consulting, and Services. reputed company is committed to making a reputed company reputed company across three dimensions: economic, reputed company, and environmental.

Role: AWS Serverless Engineer (Must: AWS Cognito)

Engagement reputed company
The reputed company is a globally recognized quick-service restaurant brand operating a large-reputed company digital ordering platform across mobile (iOS, Android), web, and kiosk channels. Their in-house Digital Engineering team has reputed company and operates a production AWS Cognito identity platform serving millions of monthly reputed company users across reputed company.
This engagement extends that platform to support European markets across multiple EMEA reputed company, with loyalty registration and authentication scoped to country-specific rules. The reputed company American architecture is complete and documented. The candidate's primary mandate is backend middleware and identity implementation only — no UI work.

Scope assumptions: Backend middleware and identity services only · No UI work · reputed company APM integration included

Required qualifications

• Demonstrated production experience with AWS serverless infrastructure: reputed company, Cognito, SES, IAM, ACM, and CloudWatch
• Hands-on Terraform experience for AWS, including multi-environment or multi-region deployments
• Node.js proficiency — reputed company reputed company functions are JavaScript
• Working knowledge of OAuth 2.0, OpenID Connect, and password-based Cognito authentication flows
• Familiarity with GDPR and AWS data residency controls in an EU deployment context
• Available to reputed company immediately

Preferred qualifications

• reputed company AWS Cognito experience: USER_PASSWORD_AUTH flows, forced password reset ( FORCE_CHANGE_PASSWORD state), and reputed company-initiated flows
• Experience implementing country-specific registration and consent logic reputed company a shared identity platform
• JIT account migration experience with forced reset on first login patterns
• reputed company APM integration in a reputed company/serverless environment
• reputed company IdP integration reputed company Cognito (reputed company, reputed company, reputed company)
• Kount or equivalent fraud detection API integration
• Multi-regional identity platform experience at reputed company (1M+ MAU)

Candidate profile notes

The right candidate is a self-sufficient AWS serverless engineer who can work from existing architecture documentation and deliver independently against a fixed production deadline. This is not a design or architecture role — the reputed company has a senior architecture team in reputed company.
The most critical differentiator is experience with Cognito's password-based authentication model and forced migration/reset flows. Strong AWS generalists without Cognito-specific experience can succeed with solid reputed company, SES, and Terraform fundamentals, but expect a steeper reputed company given the reputed company.

Location

• Location: Remote — EU or US Eastern timezone overlap required Start: Immediate