Backend Engineer (.NET/C#)

Backend Engineer (.NET/C#) — Freelance via Shakers

A leading global tech company is looking for a

Backend Engineer (.NET/C#)

to join an internal-products team powering critical business operations. Fully freelance role, contracted through Shakers.

What you'll do Develop and own backend features end-to-end on internal products: design, implementation, delivery, monitoring in production. Participate actively in architectural discussions and code reviews. Translate business requirements (with PMs) into scalable, event-driven solutions. Optimize PostgreSQL schemas and query performance. Collaborate with Design and Frontend to define robust API contracts. Build and maintain background processing and asynchronous workflows.

Stack

.NET (C#) · PostgreSQL · Azure Service Bus · Hangfire · Azure · Terraform (nice to have) · DDD (nice to have)

Must-have 3–5 years building and deploying web applications. Strong .NET/C# with solid OOP foundations. Proficiency with PostgreSQL: efficient queries and schema optimization. Hands-on with background jobs (Hangfire) and event-driven architecture with message brokers (Azure Service Bus or similar). Automated testing (unit + integration) and CI/CD pipelines. Understanding of distributed systems. Proficiency in

English and Portuguese .

Nice-to-have Domain-Driven Design (DDD). Microsoft Azure + Terraform (IaC). Other message brokers (RabbitMQ).

Conditions 100% freelance via Shakers. Hybrid Porto ⏱ Duration: +6 months, long-term project, full-time dedication.

Apply through Shakers — freelance tech talent platform.