Senior Full Stack Engineer

LanguageWire

. Develop and maintain applications, including front-end interfaces, back-end services, and databases .

Posted 9/30/2026full-timeSpainSeniorWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in C# and the .NET ecosystem, including .NET Core/.NET 6+ and ASP.NET Web API, while effectively collaborating in agile environments. Proficient in CI/CD practices, automated testing, and mentoring developers to enhance team performance and code quality.

Highest-signal resume keywords

C# Programming.NET EcosystemCI/CD PracticesAgile DevelopmentVue.js Front-End Development

ATS Keywords

Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills

C#.NET Core.NET 6+ASP.NET Web APIPythonRESTful API DesignEntity FrameworkLINQMSSQLPostgreSQL

Soft Skills

Problem-SolvingCommunicationCollaboration

Tools & Technologies

GitDockerKubernetesTerraformHelmAzureAWSGCPVuexPinia

Industry Keywords

Microservices ArchitectureEvent-Driven SystemsSecurity Best PracticesAutomated TestingTDDBDD

Tech Stack

Tools & technologies

ASP.NETAWSAzureCloudDockerEntity FrameworkGoogle Cloud PlatformJavaScriptKafkaKubernetesMicroservicesPostgresPythonRabbitMQTerraformTypeScriptVue.js.NET

About the role

Key responsibilities & impact

Develop and maintain applications, including front-end interfaces, back-end services, and databases
Contribute to 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
Own products and solutions, eliminating 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 technical expertise and assist in customer meetings
Own CI/CD pipelines to ensure seamless operations
Help shape the technical direction, architecture, team culture, and practices of a newly formed team
Mentor mid-level and junior developers
Deliver major features to production with measurable impact
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
Extensive 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
Front-end experience with Vue.js and/or TypeScript
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 effectively 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, Friday Bars, Summer parties, and Christmas parties
Private health insurance
FlexiWire 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