Senior Fullstack Engineer (.NET+ React)

Your Strategic Partner for HR, Payroll & Headhunting Solutions

We are seeking a highly skilled Senior Fullstack (.NET + React) Engineer to join our growing engineering team and help shape the future of productivity-driven software solutions. This role involves end-to-end software development, leveraging modern technologies across cloud platforms, backend, and frontend. If you're passionate about building high-performance, scalable applications in a collaborative and fast-paced environment—this opportunity is for you!

Location : Open to candidates located in Spain or Portugal (Remote - but the position requires travel to the UK for project-related activities)

Your Responsibilities

As a Senior Fullstack (.Net + React) Engineer, you will play a key role in designing, developing, and maintaining scalable cloud-based software applications. You will be part of a distributed and high-performing team that values clean code, modern architecture, and continuous improvement. Your work will directly contribute to delivering top-quality, intuitive solutions to clients across diverse industries.

What you'll do :

Develop and maintain robust RESTful APIs using C# and .NET Core.

Build modern and responsive web interfaces using React.

Design and implement scalable applications using AWS cloud and Terraform.

Leverage containerization technologies like Docker and Kubernetes to optimize deployment and scalability.

Collaborate with cross-functional teams to solve complex technical challenges.

Contribute to the design and architecture of microservices-based systems.

Write clean, maintainable code supported by unit and integration testing.

Implement and maintain CI / CD pipelines and Infrastructure as Code practices.

Stay current with technology trends and actively share knowledge with your peers.

Participate in project-related travel to the UK as needed.

Requirements

Minimum of 6 years’ hands-on experience in software development.

Proficiency in C# and .NET Core for backend development.

Strong experience with React for frontend development.

Cloud expertise with AWS and Terraform.

Experience building microservices and RESTful APIs.

Hands-on experience with Docker and Kubernetes.

Strong understanding of object-oriented programming, data structures, and algorithms.

Experience with relational databases like PostgreSQL.

Strong testing mindset with experience in unit / integration testing.

Familiarity with Okta, JWT, SSO, and MFA concepts.

Experience working in Agile environments and distributed teams.

Excellent English communication skills—both written and verbal.

What’s in It for You?

Career acceleration in a rapidly growing global tech organization.

Competitive salary and yearly bonus.

Hybrid work model with flexibility.

Monthly work-from-home allowance.

Travel opportunities to collaborate directly with international teams.

Opportunity to work alongside experts and contribute to cutting-edge solutions.

Ready to join a fast-moving, innovation-driven team? Apply now and help us build the products of tomorrow!