AWS IoT Back-end Engineer

Required:

• 4+ years in backend, integration or solutions engineering, with strong C# / .NET (ASP.NET Core).
• Solid PostgreSQL experience: schema design, migrations, query tuning.
• EF Core is a plus.
• Hands-on AWS experience in production: S3, IAM, Secrets Manager, App Runner or ECS, CloudWatch.
• You can read and change IaC.
• Experience designing and consuming REST APIs, and writing unit and integration tests.
• Strong written and spoken English.
• You can run a technical call with a vendor, then document what was agreed.
• A customer-minded, ownership-driven approach: you follow a problem from the first report to the fix.

Key responsibilities :

• Rework and configure the existing AWS IoT Core infrastructure for new hardware/firmware.
• Configure and manage MQTT communication between devices and AWS.
• Build monitoring capabilities and dashboards for device connectivity, health, and status.
• Enable secure remote actions on devices, including:
  • OTA firmware updates
  • Device restarts
  • Remote commands/configuration
• Review and improve AWS IoT device provisioning, authentication, certificates, policies, and security.
• Migrate AWS workloads that are reaching end-of-life or are no longer appropriate, including migrating services from AWS App Runner to ECS.
• Support and improve AWS infrastructure, deployment pipelines, monitoring, logging, and alerting.
• Migrate the current email infrastructure from AWS to Microsoft Azure while ensuring existing AWS applications and automated email workflows continue working without disruption.
• Work with the existing engineering team to understand the current architecture and safely execute infrastructure changes.

Nice to have :

• Experience with IoT device fleets, telemetry or OTA update systems (MCUboot, firmware signing, rollback and rollout strategies).
• Python (FastAPI, boto3, pytest) and AWS CDK in Python.
• Experience with AWS Lambda and Step Functions, or ML pipelines.
• Observability: alarms, dashboards, structured logging.
• Next.js / React for small internal tools.
• Security-minded engineering: least-privilege IAM, secrets handling, input validation.

Benefits

Contrato a largo plazo.

• 100% Remoto.
• Vacaciones y PTOs.
• Posibilidad de recibir 2 bonos al año.
• 2 revisiones salariales al año.
• Clases de inglés.
• Equipamiento Apple.
• Plataforma de cursos en linea.
• Budget para compra de libros.
• Budget para compra de materiales de trabajo.
• Mucho más..
• Contrato a largo plazo.
• 100% Remoto.
• Vacaciones y PTOs.
• Posibilidad de recibir 2 bonos al año.
• 2 revisiones salariales al año.
• Clases de inglés.
• Equipamiento Apple.
• Plataforma de cursos en linea.
• Budget para compra de libros.
• Budget para compra de materiales de trabajo.

•Mucho más..