Senior Full Stack Engineer

LanguageWire is a global leader in language and content services, dedicated to helping brands achieve their full global potential. Since our founding in 2000, we have continuously evolved and developed unique technology to facilitate seamless multilingual communication. Our worldwide network of language experts, coupled with an intuitive online platform, makes it effortless for brands to translate and manage multilingual content., As our Senior Full Stack Engineer, you will have the chance to help modernize our core application and develop valuable features for our translators, customers and internal experts. You will collaborate with several experienced engineering teams and contribute to bringing new products and services to life using a cloud-native tech stack. Your focus will be on modernizing the frontend and adding new functionalities both in frontend and backend.

The team you'll be a part of

At LanguageWire, innovation is deeply embedded in our culture. We have a suite of .NET and Python microservices at the backend, providing critical support for our products. These microservices are essential to the success of our platform, contributing to our mission of simplifying workflows for everyone.

In our team, you will work alongside senior, mid-level, and junior full stack developers, a senior frontend developer, as well as a dedicated Product Manager and a QA specialist. This diverse mix of skills and experience creates a collaborative environment where everyone contributes to building high-quality solutions.

If you want to make a difference, make it with us by...

• Developing and maintaining applications, including front-end interfaces, back-end services, and databases

• Contributing to the architecture, design and implementation of new features and improvements

• Implementing best practices for code quality, testing and deployment automation

• Ensuring high-quality software through active participation in code reviews

• Actively engaging in sprint retrospectives, refinements, daily stand-ups, and other team processes

• Taking full ownership of the products and solutions you develop, eliminating bugs early in the process through TDD/BDD and other tests

• Sharing knowledge and support fellow developers, QA professionals, and support teams

• Supporting team leaders with your expert knowledge and assist in customer meetings

• Collaborating with our Site Reliability Engineer (SRE) on CI/CD pipelines to ensure seamless operations

In one year, you'll know you were successful if...

• You are fully integrated as part of the team and have built strong working relationships.

• You actively contribute to maintaining a positive, collaborative, and knowledge-sharing team atmosphere.

• You take full ownership of products and solutions, having delivered several major features to production with measurable impact.

• You share your expertise by mentoring mid-level and junior developers, helping them grow and succeed.

• You contribute to improving team processes, code quality, and technical decision-making.

• Motivational and engaging with a "can do" attitude, fostering a positive team environment.

• Strong problem-solving skills and communication skills.

• Solid understanding of software architecture, design patterns, and best practices.

• Extensive experience with C# and the .NET ecosystem (.NET Core/.NET 6+, ASP.NET Web API, etc.)

• Proficiency with relational databases, particularly MSSQL and/or PostgreSQL

• Hands-on experience with Entity Framework (EF Core) and LINQ

• Solid understanding of RESTful API design and integration

• Familiarity with asynchronous programming and performance optimization in .NET

• Ability to contribute to front-end codebases using Vue.js and/or TypeScript, collaborating closely with full-stack and frontend developers

• Basic understanding of frontend build tools and state management (Vuex, Pinia, or similar).

• Experience with version control systems (e.g., Git) and CI/CD practices

• Experience with automated testing frameworks (unit, integration, and end-to-end).

• 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: CI/CD pipelines, Infrastructure as Code (Terraform, Helm, etc.), Docker, Kubernetes, cloud services (Azure, AWS, or GCP).

This will make you stand out

• Experience with Python

• Knowledge of microservices architecture and event-driven systems

• Familiarity with message brokers (e.g., RabbitMQ, Kafka, Azure Service Bus)

• Strong focus on testing practices (unit testing, integration testing, test automation)

• Awareness of security best practices in software development

• Ability to mentor others and foster knowledge-sharing within the team

* Enjoy flat hierarchies, responsibility and freedom, direct feedback, and room to stand up for your own ideas * Internal development opportunities, ongoing support from your People Partner, and an inclusive and fun company culture * International company with over 400 employees. Offices in Copenhagen, Aarhus, Stockholm, Varberg, London, Leuven, Lille, Paris, Munich, Hamburg, Zurich, Atlanta, Finland and Valencia * For this role, we have a full-time FlexiWire@home option for remote work. Of course, you are always welcome at the office to collaborate and connect with your colleagues. The role requires to work from Spain. * We take care of our people and initiate many social get-togethers from Friday Bars a to Summer or Christmas parties. We have fun! * 200 great colleagues in the Valencia office belonging to different business departments * Excellent location in cool and modern offices in the city center, with a great rooftop terrace and a view over the Town Hall Square * Private health insurance * Working in an international environment-more than 20 different nationalities * A dog friendly atmosphere * Big kitchen with access to organic fruits, nuts and biscuits and coffee. * Social area and game room (foosball table, darts, and board games) * Bike and car parking About LanguageWire At LanguageWire, we want to wire the world together with language. Why? Because we want to help people & businesses simplify communication. We are fueled by the most advanced technology (AI) and our goal is to make customer's lives easier by simplifying their communication with any audience across the globe. Our values drive our behavior We are curious. We are trustworthy. We are caring. We are ambitious. At LanguageWire, we are curious and intrigued by what we don't understand. We believe relationships are based on honesty and responsibility, and being trustworthy reinforces an open, humble, and honest way of communicating. We are caring and respect each other personally and professionally. We encourage authentic collaboration, invite feedback and a positive social environment. Our desire to learn, build, and share knowledge is a natural part of our corporate culture.