Senior .NET Backend Engineer — Cloud-Native Impact

Fyld; Porto; On-site; EUR 52,000 - 75,000; Full time

Job summary

Fyld is hiring a Senior .NET Backend Developer to build modern, cloud-native solutions that deliver real business impact. You will work on scalable distributed systems using .NET, Azure, and AWS in a collaborative, growth-oriented environment.

Ideal candidates have strong C# expertise, backend experience, and a passion for clean architecture, testing, and continuous learning. English fluency is essential as projects span international teams and clients.

Qualifications

• Degree in Computer Engineering, Software Engineering, or a related field.
• 4+ years of experience in Backend Development.
• Strong experience with NET Core / .NET 6+ / .NET 8.
• Solid knowledge of C#, ASP.NET Core, RESTful APIs, and Microservices Architecture.
• Experience designing and implementing scalable and resilient distributed systems.
• Knowledge of relational databases (EF Core, SQL Server, PostgreSQL).
• Experience with Azure cloud services and AWS (nice to have).
• Docker, containerized apps and Kubernetes knowledge is a plus.
• CI/CD proficiency with Azure DevOps, GitHub Actions, or GitLab CI.
• Understanding of Clean Architecture, SOLID, design patterns, and DDD.
• Messaging architectures (Kafka, RabbitMQ, Azure Service Bus).
• Observability tools and IaC (Terraform, Bicep, CloudFormation).
• Fluent in English.

Skills

C#

ASP.NET Core

RESTful APIs

Microservices

Distributed Systems

Entity Framework Core

SQL Server

PostgreSQL

Azure Functions

Azure Service Bus

Azure Storage

Azure Key Vault

Azure API Management

Azure Monitor

Application Insights

AWS Lambda

ECS / EKS

S3

RDS

API Gateway

CloudWatch

IAM

Docker

Kubernetes

CI/CD

Azure DevOps

GitHub Actions

GitLab CI

Clean Architecture

SOLID principles

Design Patterns

DDD

Kafka

RabbitMQ

Terraform

Bicep

CloudFormation

English

Education

Bachelor's degree in Computer Engineering / Software Engineering or related field

Tools

Azure DevOps

GitHub Actions

GitLab CI

Terraform

Bicep

CloudFormation

Job description

Fyld is hiring a Senior .NET Backend Developer to build modern, cloud-native solutions that deliver real business impact. You will work on scalable distributed systems using .NET, Azure, and AWS in a collaborative, growth-oriented environment.

Ideal candidates have strong C# expertise, backend experience, and a passion for clean architecture, testing, and continuous learning. English fluency is essential as projects span international teams and clients.