Strong Middle/Senior Backend Serverless Developer, Node.js (plus remote)

Львів, Київ, Одеса, Харків, Івано-Франківськ JavaScript Intermediate Strong 15155

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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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