Backend Developer (IAM / Security Focus) – Integration & Backend Team

Backend Developer (IAM / Security Focus) – Integration & Backend Team Work model: fully remote in RomaniaAssignment type: B2BProject length: 6 months + extensions.Project language: English.Industry: Ad Tech industryAbout the RoleWe are hiring a Senior Backend Developer with a strong focus on identity and access management (IAM) and security. You will be responsible for designing and maintaining secure, scalable backend systems, ensuring robust user authentication and compliance with best practices. ResponsibilitiesDevelop and maintain backend services with a focus on IAM and security.Work with AWS Cognito and similar identity management solutions.Implement security best practices across backend microservices.Collaborate with frontend and integration teams to deliver secure end-to-end solutions.Contribute to code reviews, testing, and architectural discussions.Key RequirementsProven experience as a Backend Developer with a security/IAM focus.Hands-on experience with AWS Cognito or similar identity platforms.Strong understanding of security standards, authentication, and authorization.Solid knowledge of microservices architectures.Previous experience with SaaS, e-commerce, or Adtech is meritorious.