Senior Full-Stack .NET/React Developer (English C1 mandatory)

Jordan martorell s.l.; A distancia; EUR 50.000 - 70.000; Jornada completa

Descripción de la vacante

A multinational technology company is seeking a Senior Full-Stack .NET/React Developer to join an ambitious international project in Spain. The role involves developing full stack cloud-based applications, collaborating across teams, and contributing to CI/CD pipelines. Candidates should have over 4 years of experience, strong abilities in .NET and React, and fluent English. The company promotes a flexible work culture with opportunities for professional growth and development.

Servicios

Health insurance

Bonus/referral/incentive programs

Competitive flexible benefits package

Additional vacation days

Training programs

Formación

• 4+ years of experience in full stack development.
• Strong knowledge of .NET Core / ASP.NET Core, C#, and React JS.
• Solid understanding/experience of microservices and cloud (Azure or AWS).

Responsabilidades

• Develop and maintain full stack cloud based web applications.
• Collaborate with product managers and designers for high-quality features.
• Contribute to CI/CD pipelines and deployment automation.

Conocimientos

Full stack development

Fluent English

Problem-solving skills

Teamwork abilities

Attention to detail

Herramientas

.NET Core

C#

React JS

Docker

Kubernetes

Descripción del empleo

UNISYS is a leading multinational technology company with more than 23, 000 professionals worldwide, driving digital transformation for global organizations across key industries.

We are currently looking to hire a Senior Full-Stack .NET/React Developer to join an ambitious, international project offering long‑term stability and growth.

You will be part of a collaborative, innovative, and multicultural environment, where knowledge sharing and professional development are core to our culture.

We offer immediate onboarding, the opportunity to work on high‑impact strategic initiatives, and collaboration within a high‑performing team with international exposure. At UNISYS, we actively promote flexibility, continuous learning, and a healthy work‑life balance.

Fluent English is a mandatory requirement, as you will be working in a global environment alongside international teams.

If you are seeking stability, career progression, and the opportunity to be part of a people‑centric company with a truly global footprint, UNISYS is the next step in your professional journey.

Main Tasks:

• Develop and maintain full stack cloud based web applications using .NET (C#) and React JS.
• Write clean, maintainable, and testable code with a strong focus on unit and integration test coverage in a microservice architecture environment
• Design and consume RESTful APIs and work with both relational and non-relational databases.
• Collaborate with product managers, designers, and fellow developers to deliver high-quality features.
• Participate in code reviews, technical discussions, and architectural planning.
• Contribute to CI/CD pipelines and deployment automation.
• Support containerized application development using Docker and Kubernetes.
• Must-Haves:
• 4+ years of experience in full stack development.
• Strong knowledge of .NET Core / ASP.NET Core, C#, and React JS.
• Experience working with relational (e.g. PostgreSQL, MySQL) and non-relational (e.g. MongoDB, Cosmos DB) databases.
• Solid understanding/experience of microservices, cloud (Azure or AWS), software testing practices and commitment to maintaining high test coverage.
• Good problem‑solving skills and attention to detail.
• Strong communication in English and teamwork abilities

Nice-to-Haves:

• Experience with Kubernetes and container orchestration.
• Familiarity with CI/CD tools (e.g. Azure DevOps, GitHub Actions, Jenkins).
• Exposure to cloud platforms like Azure or AWS.
• Understanding microservices architecture.
• Knowledge of Server‑Side React or Node.js for prototyping purposes
• Experience with GitHub Copilot.
• Become part of our "Winning Culture" and work on award‑winning projects in high‑end technological setting
• We offer a company own learning platform! Our goal is to help you realize your individual potential!
• "Wellbeing & Employee Assistance Program": Your (mental) health is important to us and is treated confidentially by a neutral party!
• Solid qualification-, performance- & competence‑based remuneration model, attractive pension scheme and various allowances
• Bonus/referral/incentive/recognition programs - we want you to feel appreciated at Unisys!
• We offer a health program on‑top as a 24/7 life and accident insurance as well as an additional medical insurance to make sure you receive the best treatment in any situation possibly occuring
• Your work‑life‑balance is a high good for us at Unisys, therefore we offer 2 additional holidays (24th and 31st of December) as well as an option to buy up to 5 additional vacation days
• Competitive flexible benefits package, including 100% remote work and a remote work allowance.
• On top of our Unisys university additional trainings and workshops are being at your free disposal