Mid Level API Developer s Octopus by RTG

About Robusta Technology Group and Octopus
Robusta Technology Group (RTG) drives digital transformation through a comprehensive tech ecosystem, collaborating with local and international partners to build digital customer experiences, establish engineering hubs, and develop ventures across various industries. Octopus, a part of RTG, is a tech consultancy group with a decade of experience and a track record of over 300 projects in Europe, the Middle East, and North America. Octopus and Robusta aim to connect companies with global talent by creating tailored hub solutions.
Role Overview
We are seeking a Mid-Level API Developer (Integration Engineer) for an onsite, full-time position in KSA for a 4-month duration. This role involves designing, building, and maintaining the integration layer for a digital Residents and Tenants Portal. The developer will connect this portal with various third-party and enterprise systems, focusing on secure and reliable APIs and middleware to support authentication, e-signature, payments, access control, CRM integrations, and notifications. The ideal candidate will have 2-5 years of 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 for SSO, 2FA, password reset, and session management.
Develop integrations with e-signature platforms (*, DocuSign) for contracts and workflow support.
Integrate with CRM and leasing systems to synchronize unit listings, inquiries, leads, and other data.
Develop integrations with access-control systems for access cards, visitor codes, and vehicle registration.
Support payment and invoicing integrations, including invoice generation, proof-of-payment, and status synchronization.
Integrate with email and SMS notification gateways for alerts and confirmations.
Integrate external data feeds, such as weather and events APIs, as required.
Build middleware and orchestration logic to synchronize data and application states across 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 for integration environments and API access.
Support the promotion of integrations from testing to production environments.
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.
Maintain technical documentation, integration architecture diagrams, and operational runbooks.
Collaborate with developers, QA engineers, product teams, and external vendors for feature delivery.

Required Qualifications and Skills

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 (*, DocuSign, Adobe Sign).
Hands-on experience with SSO and identity providers (*, Azure AD, Okta, Auth0).
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 into technical solutions.
Strong troubleshooting and problem-solving skills.
Good understanding of integration testing and production support practices.
Strong communication and collaboration skills.

Preferred Qualifications

Experience working with access-control or physical-security system APIs (*, Genetec, Lenel).
Experience integrating with real-estate or leasing CRM platforms (*, Yardi, MRI, Salesforce, 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.

Work Environment
This is a full-time, onsite position located in KSA, with a contract duration of 4 months. The role requires close collaboration with client IT teams, vendors, developers, QA, and other stakeholders.