Mid Level API Developer s Octopus by RTG📣 Job Ad

About Robusta Technology Group and Octopus

Robusta Technology Group (RTG) is a key driver of digital transformation, providing a holistic tech ecosystem and collaborating with local and international partners. RTG focuses on building digital customer experiences, establishing engineering hubs, and developing ventures across multiple industries. Octopus, a division of RTG, brings a decade of experience, having delivered over 300 projects across Europe, the Middle East, and North America, and works to connect companies with top talent.

The Role: API Developer (Integration Engineer)

We are seeking an API Developer (Integration Engineer) for a contract position based in Riyadh, Saudi Arabia. This role is central to designing, building, and maintaining the integration layer that connects a digital Residents and Tenants Portal with various third-party and enterprise systems. The successful candidate will develop secure and reliable APIs and middleware to enable key platform capabilities, including authentication, e-signature, payments, access control, CRM integrations, and notifications.

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 for contract 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 OpenAPI/Swagger.
• Implement secure authentication and authorization mechanisms using OAuth2, OIDC, and JWT.
• Design robust error-handling, retry, and recovery strategies for integrations.
• Implement webhook and event-driven handlers for asynchronous workflows.
• Coordinate with internal teams, client IT teams, and third-party vendors to manage integration environments, credentials, and API access.
• Support the promotion of integrations from sandbox/testing environments to production.
• Develop integration, API, and contract tests and support QA and UAT activities.
• Monitor API performance, logs, and error rates and troubleshoot integration issues during production and hypercare periods.
• Maintain technical documentation, integration architecture diagrams, and operational runbooks.
• Collaborate with developers, QA engineers, product teams, and external vendors to ensure successful delivery of integration-dependent features.

Required Qualifications and Experience

• 4+ years of experience in API development, backend development, or integration engineering.
• Strong hands-on experience building and consuming REST/JSON APIs in production environments.
• Solid understanding of OAuth2, OIDC, JWT, and webhook-based architectures.
• Experience integrating with at least one e-signature platform such as DocuSign, Adobe Sign, or a similar solution.
• Hands-on experience with SSO and identity providers such as Azure AD, Okta, Auth0, or similar.
• Strong proficiency in at least one backend technology such as ****, .NET, or Java.
• Experience working with API gateways, middleware, message queues, or iPaaS solutions.
• Experience with API testing tools such as Postman/Newman.
• Strong understanding of API security best practices, including rate limiting, input validation, authentication/authorization, and secrets management.
• Experience designing integrations and translating business requirements, user stories, and acceptance criteria into technical solutions.
• Strong troubleshooting and problem-solving skills.
• Good understanding of integration testing and production support practices.
• Strong communication and collaboration skills, with the ability to work effectively with technical and non-technical stakeholders.

Preferred Skills and Experience

• Experience working with access-control or physical-security system APIs, such as Genetec, Lenel, or similar.
• Experience integrating with real-estate or leasing CRM platforms such as Yardi, MRI, Salesforce, or Microsoft Dynamics.
• Experience with Azure API Management, MuleSoft, or similar API management/integration platforms.
• Experience working with event-driven architectures and message brokers.
• Experience working in enterprise integration or digital transformation projects.

Indicators of Success

• All required third-party and enterprise integrations are delivered, tested, and successfully pass UAT.
• APIs and integrations are secure, reliable, and scalable.
• Integration-related issues are identified and resolved within agreed SLAs.
• API and integration documentation is complete and clear enough to support the client's internal teams after handover.
• Smooth collaboration with client IT teams, vendors, developers, QA, and other stakeholders throughout implementation and production support.