Lead .NET Full Stack Engineer

We're looking for a Lead Software Engineer to join our team in EPAM Spain in a remote working mode. This is a hands-on individual contributor role for an experienced technologist who will take full ownership of end-to-end application development. You will design, develop and deliver robust, scalable solutions using modern technologies with a strong focus on .NET, cloud and AI-driven tools. This role involves architecture design and technical execution rather than people management or pure consulting, making it ideal for an engineer passionate about execution, quality and technical excellence.
Responsibilities
Take full technical ownership of the application development lifecycle from design to deployment
Design and develop scalable, high-performance applications using .NET and ReactJS
Leverage AI-assisted development tools (e.g., GitHub Copilot) to accelerate delivery
Collaborate with product owners and engineering teams to ensure alignment with business objectives
Write clean, maintainable and well-documented code following best practices
Conduct code reviews and ensure adherence to quality standards
Troubleshoot, debug and optimize applications for performance and reliability
Implement and maintain CI/CD pipelines, containerized services and infrastructure as code
Advocate and apply modern architectural patterns such as microservices, serverless and event-driven design
Requirements
10+ years of hands-on experience delivering full-stack applications end-to-end
Strong proficiency with .NET technologies and ReactJS for frontend development
Expertise in Azure cloud services and MS SQL
Experience using AI development assistance tools (e.g., GitHub Copilot)
Solid understanding of software architecture patterns and system design principles
Familiarity with CI/CD pipelines, containerization (Docker, Kubernetes) and DevOps practices
Strong grasp of infrastructure as code concepts and tools
Excellent problem-solving and analytical skills with a focus on technical detail
Ability to work independently and take full responsibility for solution design and delivery
Effective communication skills for interaction with both technical and non-technical stakeholders
Nice to have
Experience with event-driven systems, messaging queues or serverless architectures
Familiarity with security best practices for enterprise-level systems