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Senior .NET Developer + English

Remote from Spain·Added 11 days ago

SG Tech

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Overview

Job details

Permanent contract
Per the ad.
Fully remote
Per the ad.

Requirements

Have the right to work in Spain
SG Tech doesn't mention sponsorship in the ad.
Work in English
English is required, per the ad.
Have 5+ years of experience
Senior-level role.
Higher vocational training (FP Grado Superior)
“Grado universitario o Formación Profesional de Grado Superior.” — per the ad.

This job was automatically translated to English.

Pay & benefits

What you'll get

Permanent contract with us.
Possibility of 100% remote modality.
Reference workplace in San Fernando de Henares, Madrid.
Schedule from Monday to Thursday of nine hours daily, with flexible entry between 08:00 and 09:00 and exit between 17:00 and 18:00.
Intensive seven-hour workday on Fridays.
Intensive seven-hour workday daily during July and August.
The position requires availability to travel.
Work team provided by the project due to security requirements.
Professional development.
Job stability.
Open salary based on experience, plus access to flexible compensation.

Requirements

What we're looking for

University degree or Higher Level Vocational Training.
At least five years of experience in .NET development in enterprise environments.
At least three years working with C# and Visual Basic.NET in business applications.
Experience in base data modules or core components supporting other systems.
Solid experience with Microsoft SQL Server and stored procedures.
Proficiency in .NET Framework 4.x and development with C#.
Ability to maintain and evolve existing code in Visual Basic.NET.
Development of backend components and business logic.
Validation and consistency of master data and work with registration, modification, synchronization, and querying processes of base data.
Advanced use of stored procedures, functions, views, and transactions.
Query optimization and performance analysis.
Data access via ADO.NET and Entity Framework where appropriate.
Experience in layered architectures and ability to work on legacy code.
Impact analysis, incident correction, and controlled evolution.
Regular use of Git, participation in code reviews, and work with a defined branching strategy and delivery version control.
Minimum English B2+ or C1, both conversational and in reading and writing.
Availability to travel.

Nice to have

Experience with WinForms or WPF.
Knowledge of Clean Code and SOLID principles.
Knowledge of Repository and Service Layer patterns.
Knowledge of unit testing and functional validation.
Experience with DBA teams.
Knowledge of deadlock analysis and concurrency.
Knowledge of documenting database structures and business rules.
Experience in core or transversal systems.
Experience in 24x7 environments and production support.
Knowledge of change control and traceability.

The role

We need to hire a Senior .NET Backend Developer with at least five years of experience to participate in a project in the Mobility sector. The position offers the possibility of working in a 100% remote modality.

What you'll do

The selected person will develop backend components and business logic with .NET Framework 4.x and C#, and will perform the maintenance and evolution of existing code in Visual Basic.NET. They will work with base data modules and core components that support other systems, including the validation and consistency of master data and the processes of registration, modification, synchronization, and querying.

Likewise, they will work with Microsoft SQL Server, stored procedures, functions, views, and transactions, optimizing queries and analyzing performance. They will participate in impact analysis, incident correction, and the controlled evolution of legacy code, using layered architectures and data access via ADO.NET and Entity Framework where appropriate.

About SG Tech

Serviguide BPO is a business process outsourcing and technology services company based in Madrid, Spain. It provides a wide range of services including IT consulting, software development, systems engineering, and technical support across sectors such as aerospace, defense, banking, insurance, and public administration. The company operates as a staffing and project-based services provider, offering both on-site and remote roles for clients across Spain and internationally.

Serviguide BPO has a strong presence in Spain, with job opportunities spanning Madrid, Barcelona, Gijón, and A Coruña, among other locations. The company frequently hires for roles requiring specialized technical skills, including SAP, .NET, Java, DevOps, and embedded systems, and offers many 100% remote positions. For international professionals, Serviguide BPO provides opportunities to work on high-tech projects in sectors like space systems, defense, and air traffic management, though most roles require Spanish language proficiency and EU work authorization.

Industry: BPO
Headquarters: Madrid, Spain
In Spain: Madrid, Barcelona, Gijón and 1 more
Website: serviguidetech.com

Good to know if you are moving

Serviguide BPO is headquartered in Madrid, Spain, and has offices in several Spanish cities, including Barcelona, Gijón, and A Coruña.
The company offers many 100% remote positions, which can be attractive for international professionals seeking flexibility.
Most roles require Spanish language proficiency, so non-Spanish speakers may face language barriers.
The company works on projects in sectors like aerospace, defense, and banking, providing opportunities for specialized engineers and IT professionals.
International candidates will likely need a valid EU work permit or Spanish visa, as the company does not appear to offer visa sponsorship.

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