Software Developer - Graph API Proxy

About Justera Group Justera Group AB is a leading Swedish IT consulting firm with great experience specializing in building high-performing technology teams and delivering end-to-end IT solutions. Led by dynamic female executives, Justera Group focuses on helping businesses harness the power of digital technologies to continuously evolve in today’s rapidly changing economy. The company has deep expertise in IT consultancy, software development, and recruitment services, providing clients with purpose-driven, well-trained consultants who consistently deliver efficient and effective results. Justera Group manages the entire talent lifecycle, from hiring to ongoing management, ensuring the right fit for each project on time and within budget. With their strong commitment to quality, collaboration, and client success, Justera Group is a trusted partner for technology innovation across Sweden. About the Role: We are looking for an experienced Software Developer / Architect with strong expertise in Microsoft Graph API, Azure, API gateways/proxies, and Infrastructure as Code (IaC). The assignment involves designing and developing a secure, scalable Microsoft Graph API proxy solution that enables customers to control and manage data exposure to third-party applications through granular, field-level access controls. You will work closely with an internal technical team and contribute to the architecture, development, deployment, security, and documentation of the solution. Key Responsibilities: Design and develop a scalable Microsoft Graph API proxy architecture Implement granular, field-level access control for data exposed through the proxy Design secure API gateway and proxy patterns Develop Infrastructure as Code (IaC) to enable automated and repeatable customer deployments Build configuration interfaces and tooling for managing customer data access policies Integrate and work with Microsoft Identity Platform and OAuth 2.0 Ensure the solution follows Azure security, scalability, performance, and architecture best practices Consider multi-tenant SaaS architecture and deployment patterns Produce technical documentation, deployment guides, and operational procedures Contribute to security and compliance documentation Collaborate with internal stakeholders to refine architecture and implementation Requirements: We are looking for a senior-level professional with strong hands-on development and architectural experience in the following areas: Deep knowledge of Microsoft Graph API , including its architecture and endpoints Extensive experience with Microsoft Azure and cloud deployment patterns Strong proficiency in Terraform, Bicep, ARM templates , or equivalent IaC technologies Experience designing and developing API gateways and proxy solutions Strong understanding of OAuth 2.0 and the Microsoft Identity Platform Experience with multi-tenant SaaS architectures Strong understanding of API…