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Project Overview:

Our client is a leading software and services provider to communications and media companies, is looking for a skilled team to implement a People Services Mobile app for internal usage. The application aims to provide simple and user-friendly digital experience of the corporate services for Customer's employees and contractors. 

Responsibilities:

Strong Middle/Senior engineer with real project experience in designing and developing web application backends on AWS Serverless framework components including:

Authentication:

  • OAuth2: MS Azure Active Directory.
     
    Main:
  • IAM (Roles, Permissions);
  • API Gateway (REST APIs);
  • AWS AppSync (GraphQL APIs);
  • Lambda (Node.js);
  • DynamoDB;
  • CloudFront + Lambda@Edge + S3;
  • CloudFormation.
     
    Extra:
  • CloudWatch + X-Ray;
  • Systems Manager (Parameter Store);
  • Key Management Service.
     
    Maybe we will use in Cafeteria:
  • SQS;
  • SNS;
  • Step Functions.

Required experience:

  • Experience 3+ years with NodeJS backend development;
  • Understanding of OAUTH2/OIDC authentication patterns (including Auth Code and token refresh) and JWT token usage;
  • Clear understanding of Serverless development;
  • Experience with secure REST APIs development;
  • Experience working with GIT repository;
  • Experience working as part of distributed development team within an Agile SDLC scrum process.

Responsibilities:

  • New features detailed design and development;
  • Write unit tests for any developed features;
  • Complete code reviews and ensure design compliance on developed features;
  • Participate in feature demos at the end of each Sprint;
  • Work closely with Front-end and QA teams to guide and review test cases;
  • Independently troubleshoot issues and resolve problems both in code and in work environment.

Nice to have:

  • Familiarity with the following AWS services is a plus:
  • Lambda@Edge and Lambda authenticators;
  • AppSync GraphQL schemas and resolvers for DynamoDB, AuroraSQL, and HTTP 3rd party endpoints;
  • AWS Step Functions;
  • DynamoDB data modelling design and query pattern design;
  • Familiarity with Azure Graph API and Azure AD IDP a plus.
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