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Senior .NET Developer (IoT) at Voltex Electrical. Job Overview: . We’re seeking a . Senior Software Engineer . to lead the design and development of the backend systems that power our connected device ecosystem. You’ll architect scalable, secure, and modular APIs and services enabling . real-time communication . , . state synchronization . , and . cross-platform device interoperability . —with a strong focus on . IoT and Matter standards. . This is a senior, hands-on engineering role for someone deeply passionate about building robust systems that bridge hardware, cloud, and mobile experiences.. Key Responsibilities: . Design and develop high-performance backend services in . C# . .. Architect . cloud-agnostic . solutions deployable on . AWS . , . GCP . , . Azure . , or on-premises.. Build and maintain . REST APIs . with a focus on performance and scalability.. Implement . real-time event-driven systems . , including push notifications, web hooks, and messaging services.. Design and optimize . PostgreSQL . and . Redis . systems for relational, caching, and live data sync use cases.. Ensure observability through . Sentry . or similar tools for monitoring and performance tracing.. Implement strong . API security . (OAuth2/OIDC, JWT , rate limiting, input validation).. Manage . configuration synchronization . and . state consistency . between devices and cloud systems.. Build and deploy containerized services using . Docker . and . CI/CD pipelines . .. Maintain exceptional . code quality . , . SQL optimization . , and . documentation standards . .. Bachelor's degree in Computer Science, Information Technology, or a related field. . 8+ years of backend development experience using . C# . .. Proven track record in . designing scalable, modular microservices . .. Deep expertise in . PostgreSQL . and . Redis . for real-time and relational data management. Preferably with . MS SQL . experience.. Extensive experience building . REST APIs . from schema to integration.. Strong foundation in . API security. , . authentication. , and . authorization protocols . .. Proficiency with . Docker. , . CI/CD pipelines . , and . DevOps workflows . .. Experience with . background job processing . and . event-driven systems . .. Familiarity with . cloud-agnostic design . for multi-environment deployment.. Experience with . event-driven architectures . (MQTT , Kafka, RabbitMQ, etc.).. Excellent communication skills and collaborative mindset.. Works with initiative.. A great team player.. Preferred Qualifications (Bonus Points):. Strongly preferred and highly desirable. . You understand IoT architecture, device provisioning, state synchronization, and secure connectivity models.. Experience with . background job frameworks . (e.g., Celery, Hangfire, or custom queue-based systems).. Background in . telemetry. , . analytics. , or . device data pipelines . .. Azure on-premises is highly desirable. Company Location: Philippines.