Senior .NET and SQL Developer (w/ IoT experience)

Description:

We are seeking an experienced backend developer with strong skills in C#.NET and SQL Server, capable of building scalable systems that process high-volume device and telemetry data. This role involves working with IoT and data coming from devices, sensors, and telematics sources, ensuring performance and reliability in real-time environments. You will work closely with cross-functional teams to enhance and support cloud-based applications that interact with connected devices.

What will you do?

• Design and develop backend services using C#.NET Core 6 or 7.
• Build and maintain REST APIs for the ingestion and delivery of IoT data.
• Create optimized SQL queries, stored procedures, and ETL processes.
• Integrate with IoT protocols such as MQTT or AMQP.
• Implement solutions that support real-time and time series data.
• Participate in architectural decision-making for cloud-based systems.
• Support production applications and incident resolution.
• Collaborate with product, hardware, and firmware teams.
• Mentor junior engineers and contribute to code reviews.

Requirements:

• 7 or more years of experience with C#.NET development.
• Strong expertise in SQL Server including performance tuning and indexing.
• Hands on experience with IoT, telemetry or device integrated systems.
• Experience working with AWS services such as S3, EC2 or Lambda.
• Knowledge of distributed systems and microservices.
• Experience handling high data volume environments.
• Experience with Microsoft Power BI data warehousing.
• Experience working with AI APIs such as Azure, Anthropic or Google.
• Advanced English level for communication in global teams.
• Strong communication skills, teamwork mindset and focus on clean, maintainable code.

Nice to have:

• Experience with data streaming technologies such as Kafka or Event Hub.
• NoSQL knowledge such as Cosmos or MongoDB.
• Experience with GPS, geospatial data or fleet related solutions.
• Docker or Kubernetes exposure.