Senior Backend Cloud Developer (5 months project) Offline
Duration: Full-time, approximately 5 months (20 weeks)
Team Composition and Methodology
The client’s team operates in an agile environment, utilizing a modified scrum methodology. The larger team includes approximately 30 professionals, split into smaller, focused groups of 5–7 members each, led by Team Leads. Each team has distinct roadmaps and features to deliver. The structure is cross-functional, including developers, testers, and DevOps engineers, with access to dedicated environments.
Client Overview
Our client's customer base primarily comprises major global corporations, such as Facebook, IBM, Google, and many prominent international banks. These corporations manage numerous buildings worldwide, each equipped with an extensive array of remote devices. The challenge lies in efficiently managing and maintaining this vast network of equipment. To address this, our client has initiated a transformative Azure cloud project specifically tailored for commercial needs, with a primary focus on enhancing the functionality of conference rooms. This product is designed to aggregate data from these devices across the globe.
Product Stage
The product is a suite of XiO Cloud tools for remote registration and management of customer devices. It is already in production and currently in the maintenance and customization phase. One development team focuses on new features, while two other teams handle support and bug fixing. Resource assignment is dynamic and aligned with changing product and project priorities.
Key Responsibilities
- Take full ownership of complex technical problems and independently drive greenfield solution design and implementation.
- Design and build scalable, event-driven distributed systems from scratch using Azure.
- Implement background services that:
- Query lists of meeting spaces with calendar addresses.
- Integrate with Microsoft Graph API and Google APIs to fetch and monitor calendar events in real time.
- React to event changes and trigger updates on connected devices via internal REST APIs.
- Build services supporting both scheduled execution and reactive messaging logic.
- Integrate with internal REST APIs and external calendar provider APIs (MS Graph, O365, Google).
- Maintain and enhance existing Azure-hosted backend systems.
Contribute to system design discussions, challenge architectural assumptions, and ask critical integration questions (e.g., push vs. pull, security handling, credentials storage).
Requirements Core Technical Requirements
- 10+ years of commercial experience in backend development
- Expertise in C# and .NET (Core/6/7/8)
- Strong Azure experience, including:
- Azure Event Hubs (critical)
- Azure Service Bus (advanced use — async processing and message reaction)
- Azure Kubernetes Service (AKS) — understanding of scaling, orchestration, backend service operation
- Hands-on experience with:
- Event-based architecture and asynchronous processing
- Docker (development and deployment)
- Microservices within Kubernetes
- CI/CD pipelines using Azure DevOps and/or GitHub Actions
- Solid understanding of system scalability, parallelism, and horizontal scaling
Strong software design and problem-solving skills
Nice to Have
- Integration experience with Microsoft Graph API (especially calendar/O365)
- Familiarity with auth flows and secure credential handling in Microsoft 365
Experience with Google Calendar APIs
Mindset & Work Style
- Independent, proactive, and capable of driving implementation with minimal oversight
- Comfortable reasoning through system behavior, architecture, and edge cases
- Confident in collaborating with technical stakeholders and contributing to high-level design
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