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Shakers

Viseu / Global

Backend Engineer (.NET/C#)

Job Description

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.

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