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.NET Developer at Alongside

Lisbon, , Portugal -

Full Time

Start Date

Immediate

Expiry Date

28 Apr, 26

Salary

0.0

Posted On

28 Jan, 26

Experience

2 year(s) or above

Remote Job

Yes

Telecommute

Yes

Sponsor Visa

Skills

C#, ASP.NET Core, Entity Framework Core, REST, Swagger, Hangfire, Unit Testing, Integration Testing, CQRS, Clean Architecture, DDD, SOLID, Design Patterns, SQL Server, React.js, TypeScript, CORS

Industry

Software Development

Description

Alongside is a technology consulting company that supports clients in end-to-end project development, creating specialized teams, and recruiting qualified talent — offering flexible solutions tailored to each organization's needs. We are looking for a skilled .NET Backend Developer to join our team! The main focus will be backend (80%), with regular frontend work (20%), primarily around API integration with React. Responsibilities: Work mainly on the Domain and Application Layers, implementing complex rules in the utilities sector Implement Command and Query handlers (CQRS) Work with Entity Framework Core, including mappings, migrations, and complex queries Implement REST controllers, API versioning, and authentication/authorization Document contracts and endpoints using Swagger/OpenAPI Configure and maintain background jobs with Hangfire Write unit and integration tests for domain, application, and infrastructure Collaborate with the frontend team to define and evolve API contracts Debug integration issues 3+ years of experience with .NET (C#) 2+ years with ASP.NET Core Web API Strong foundations in Clean Architecture, DDD, SOLID, and Design Patterns Proficiency in Entity Framework Core (migrations, queries, performance) Experience with relational databases such as SQL Server Frontend knowledge (not a developer role requirement, but important): Familiarity with React.js and understanding of TypeScript fundamentals Understanding of React Query for API consumption Basic knowledge of CORS, JWT tokens, and SPA authentication Nice-to-haves: Experience with Hangfire and distributed systems Familiarity with Event Sourcing or Event-Driven Architecture Experience with RabbitMQ, Azure Service Bus, or other message brokers Hybrid model: 3 days per week in the office (Lisbon); Employment Contract; Health Insurance; Meal Card.

Responsibilities

The main responsibilities include working on the Domain and Application Layers, implementing complex rules in the utilities sector, and collaborating with the frontend team to define API contracts. Additionally, the role involves implementing REST controllers and maintaining background jobs.