Mid-Level API Developer - Onsite - KSA - 4 months - Octopus by RTG

Robusta Technology Group RTG is a key driver of digital transformation by providing a holistic tech ecosystem RTG works with its local and international partners to help build digital customer experiences establish engineering hubs and build ventures across multiple industries and domains In this pursuit RTG serves as a catalyst for impact and growth through events spaces and content focused on creating impact and growth across the different interactions Octopus is proud to be part of the Robusta Technology Group RTG a leading tech consultancy group With a decade of experience and a successful track record of delivering over 300 projects across Europe the Middle East and North America RTG has established itself as a preferred employer in the Egyptian market Octopus and Robusta are building a bridge between Europe and Africa creating tailored hub solutions to connect companies with top talent across the globe.

About the Role

We are looking for an strong API Developer Integration Engineer strong to design build and maintain the integration layer connecting a digital Residents and Tenants Portal with various third-party and enterprise systems. You will be responsible for developing secure and reliable APIs and middleware that enable key platform capabilities including authentication e-signature payments access control CRM integrations and notifications. The ideal candidate has strong experience in backend development and API integrations with a solid understanding of API security authentication protocols webhooks and event-driven architectures.

Key Responsibilities

• Design develop and maintain RESTful APIs and integrations with third-party and enterprise systems
• Integrate with identity and authentication providers to support SSO 2FA password reset and session management
• Develop integrations with e-signature platforms such as DocuSign or similar solutions to support contracts addendums and termination workflows
• Integrate with CRM and leasing systems to synchronize unit listings inquiries leads offers and other relevant data
• Develop integrations with access-control systems for access cards visitor codes and vehicle registration
• Support payment and invoicing integrations including invoice generation triggers proof-of-payment workflows and payment-status synchronization
• Integrate with email and SMS notification gateways for alerts confirmations and renewal notifications
• Integrate external data feeds such as weather and events APIs where required
• Build middleware and orchestration logic to keep data and application states synchronized across multiple systems
• Define and maintain API contracts using strong OpenAPI Swagger strong
• Implement secure authentication and authorization mechanisms using strong OAuth2 OIDC and JWT strong
• Design robust error-handling retry and recovery strategies for integrations