Software Authentication Engineer

We are seeking a Software Authentication Engineer (REMOTE) for a full time and direct hire role for one of our amazing partners in the United States. This role is remote but you MUST be living in the United States and be a US Citizen for Green Card Holder. This role does NOT offer sponsorship its NOT a consulting role and we do NOT work with 3rd parties!

This role focuses on designing and supporting AWS-based serverless integrations that link a captive portal WiFi platform with hotel Property Management Systems (PMS) and guest loyalty platforms across the globe. You will leverage C#/.NET and AWS Serverless technologies to create and enhance integrations that allow hotel guests to authenticate using room details charge purchases directly to their folios and enroll in loyalty programs seamlessly through the captive portal experience.

Responsibilities:

• Design develop test and support AWS Serverless applications using C#/.NET that integrate with third-party PMS and loyalty system APIs
• Build SQS-driven processing workflows for guest authentication room charge transactions configuration updates and loyalty enrollment requests
• Develop integrations with REST and SOAP APIs including OAuth2/Cognito authentication token lifecycle management and secure credential storage through AWS SSM Parameter Store
• Create and maintain DynamoDB schemas supporting configuration management session persistence and token storage
• Write and maintain unit tests using modern mocking frameworks
• Utilize AI-powered development tools such as GitHub Copilot and agentic coding assistants to streamline development improve efficiency and reduce repetitive work
• Partner with engineering product and UX teams to translate business requirements into scalable high-performing platform capabilities
• Diagnose and resolve issues within distributed serverless production environments
• Participate in peer code reviews and help establish consistent engineering standards across integration services
• Contribute within an Agile development environment operating on two-week sprint cycles
• Ensure security best practices are embedded throughout the SDLC including secure handling of PII credential protection and data masking techniques
• Participate in an on-call support rotation

Requirements:

• 25 years of software engineering experience with proficiency in C# (experience 8 or more recent versions preferred)
• Strong SQL development and querying skills
• Hands-on experience building and deploying AWS Lambda or comparable serverless solutions
• Working knowledge of AWS services including SQS DynamoDB API Gateway SSM Parameter Store Step Functions and CloudWatch
• Experience integrating with RESTful APIs and implementing OAuth2 authentication flows
• Solid understanding of software architecture principles dependency injection and testable application design
• Familiar with Git CI/CD practices and Infrastructure-as-Code tools such as CloudFormation or AWS SAM
• Experience writing unit tests and utilizing mocking frameworks
• Understanding of AWS networking fundamentals
• Comfortable incorporating AI-assisted coding tools like GitHub Copilot Cursor or Claude into daily workflows
• Experience delivering production software within Agile teams
• Strong interest in helping scale an established cloud platform while contributing to the development of new integrations and capabilities

Preferred Experience:

• Exposure to hospitality technology standards and concepts such as FIAS OHIP folios reservations and NoPost flags
• Strong SQL experience including stored procedures query optimization and MSSQL performance tuning
• Experience using AWS Step Functions for orchestration and workflow management
• Familiarity with Go or other languages supporting edge or on-premise services
• Experience with Redis/ElastiCache and OpenSearch technologies
• Knowledge of monitoring and observability tools such as Datadog and Sumo Logic
• Experience developing or consuming MCP (Model Context Protocol) servers for AI integrations with custom APIs and data sources
• Hands-on experience using agentic AI workflows including prompt engineering AI task delegation and validation of AI-generated code for quality and security

All qualified applicants will receive consideration for employment without regard to race color national origin age ancestry religion sex sexual orientation gender identity gender expression marital status disability medical condition genetic information pregnancy or military or veteran status. You must be legally authorized to work in the United States without current or future sponsorship.