Backend Engineer

Job Description

Position Title: Backend Engineer

Position

Description:

Protingent Staffing has an exciting contract Backend Engineer opportunity located in Northridge, CA.

• Design and implement REST APIs using Smithy models
• Develop and maintain Coral Lambda Endpoint services using Kotlin/Java
• Build and maintain Cognito Lambda triggers using Type Script/Node.js
• Implement authorization and authentication mechanisms
• Develop policy management and tenant administration features
• Work with AWS Dynamo
  
  DB for data persistence
• Implement secure authentication flows with Cognito
• Design and maintain authorization policies using AWS Verified Permissions
• Handle sensitive data with proper encryption and access controls

• 5+ years of backend development experience
• Strong proficiency in Kotlin/Java and Type Script/Node.js
• Experience with AWS serverless architecture (Lambda, API Gateway, Cognito)
• Knowledge of infrastructure as code (CDK/Cloud Formation)
• Understanding of authentication/authorization patterns
• Experience with REST API design and implementation
• Tech Stack:
  Main Service: Kotlin-based Coral Lambda service handling core user management
  Cognito Lambdas: Type Script Lambda triggers for user lifecycle events
  CDK Infrastructure: Type Script‑based infrastructure definitions
  Client Libraries: Java and Type Script SDK generation
  API Models: Smithy-based service definitions
  Integration Tests: Kotlin-based comprehensive test suites

• Job Type: Contract
• Location:
  
  Northridge, Los Angeles, CA (Fully Remote)
• Pay Rate Range: $60‑90/hr
• Must be U.S. citizens

• Mid‑Senior level

• Contract

• Engineering and Information Technology

Protingent offers competitive salaries, insurance plan options (HDHP plan or POS plan), education/certification reimbursement, pre‑tax commuter benefits, Paid Time Off (PTO), and an administered 401(k) plan.

Protingent is an Award‑Winning provider of top‑tier Engineering and IT talent, trusted by companies at the forefront of innovation — from Software and Aerospace to AI, Clean Tech, Medical Devices, and Connected Technologies. We’re passionate about making a positive impact by connecting exceptional talent with meaningful opportunities and helping our clients build the future.