Full Stack Engineer

LanguageWire

. Develop and maintain applications, including frontend interfaces, backend services, and databases .

Posted 9/30/2026full-timeSpainMid-LevelSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in developing and maintaining applications across frontend and backend, with a strong focus on C#, .NET ecosystem, and RESTful API design. Proficient in agile methodologies, CI/CD practices, and mentoring team members to enhance code quality and technical decision-making.

Highest-signal resume keywords

C# Programming.NET Core/.NET 6+ASP.NET Web APIVue.js DevelopmentCI/CD Practices

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

PythonRESTful API DesignAsynchronous ProgrammingEntity Framework (EF Core)LINQAutomated TestingRelational DatabasesMicroservices ArchitecturePerformance OptimizationSecurity Best Practices

Soft Skills

Problem-SolvingCommunicationMentoringCollaborationTeam Process Improvement

Tools & Technologies

GitDockerKubernetesTerraformHelmAzureAWSGCPVuexPinia

Industry Keywords

Agile DevelopmentCode QualityTDDBDDEvent-Driven Systems

Tech Stack

Tools & technologies

ASP.NETAWSAzureCloudDockerEntity FrameworkGoogle Cloud PlatformJavaScriptKafkaKubernetesMicroservicesPostgresPythonRabbitMQTerraformTypeScriptVue.js.NET

About the role

Key responsibilities & impact

Develop and maintain applications, including frontend interfaces, backend services, and databases
Contribute to the architecture, design, and implementation of new features and improvements
Implement best practices for code quality, testing, and deployment automation
Participate actively in code reviews
Engage in sprint retrospectives, refinements, daily stand-ups, and other team processes
Take full ownership of products and solutions developed
Eliminate bugs early through TDD/BDD and other tests
Leverage AI-assisted development tools and workflows while maintaining code quality and rigor
Share knowledge and support fellow developers, QA professionals, and support teams
Support team leaders with expert knowledge and assist in customer meetings
Collaborate with the Site Reliability Engineer on CI/CD pipelines
Deliver major features to production with measurable impact
Mentor mid-level and junior developers
Improve team processes, code quality, and technical decision-making

Requirements

What you’ll need

Strong problem-solving and communication skills
Solid understanding of software architecture, design patterns, and best practices
Experience with C# and the .NET ecosystem, including .NET Core/.NET 6+ and ASP.NET Web API
Experience with Python
Solid understanding of RESTful API design and integration
Familiarity with asynchronous programming and performance optimization in .NET
Ability to contribute to frontend codebases using Vue.js and/or TypeScript
Basic understanding of frontend build tools and state management, such as Vuex or Pinia
Experience with version control systems such as Git and CI/CD practices
Experience with automated unit, integration, and end-to-end testing frameworks
Comfortable working in agile development environments and participating in sprint planning, code reviews, and peer mentoring
Ability to collaborate in cross-functional teams including product, design, and QA
DevOps experience with CI/CD pipelines, Infrastructure as Code such as Terraform and Helm, Docker, Kubernetes, and cloud services such as Azure, AWS, or GCP
Knowledge of microservices architecture and event-driven systems
Proficiency with relational databases, particularly MSSQL and/or PostgreSQL
Hands-on experience with Entity Framework (EF Core) and LINQ
Familiarity with message brokers such as RabbitMQ, Kafka, or Azure Service Bus
Awareness of security best practices in software development

Benefits

Comp & perks

Flat hierarchies, responsibility and freedom, direct feedback, and room to stand up for your own ideas
Internal development opportunities
Ongoing support from a People Partner
Inclusive and fun company culture
Social get-togethers, including Friday Bars and Summer or Christmas parties
Private health insurance
Hybrid work model with three days in the office and two days from home
International working environment
Dog-friendly atmosphere
Kitchen with organic fruits, nuts, biscuits, and coffee
Social area and game room with foosball, darts, and board games
Bike and car parking