Sr. Full Stack Software Engineer - Orchestration and Automation

Celonis

Madrid, Spain

Full Time

Posted April 1, 2026

Climate Technology

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Job Description

The Team is part of Orchestration Engine & Actions organization mainly focused on data and built-in actions.

Key Responsibilities

As a Senior Full Stack Software Engineer, you will play a key role in designing, building, and maintaining high-quality, scalable software solutions across the stack. You’ll contribute to both frontend and backend systems, ensuring seamless integration, performance, and reliability. You will collaborate closely with product managers, designers, and other engineers to translate business requirements into effective technical solutions that deliver exceptional user experiences.
Your experience in modern software development practices, code quality, and system design will help drive the team toward technical excellence. You’ll also mentor junior engineers, share best practices, and contribute to continuous improvement in engineering standards and workflows.
Design, develop, and maintain scalable, high-quality software solutions across the frontend and backend.
Collaborate with product managers, designers, and cross-functional teams to translate business requirements into technical implementations.
Ensure system reliability, security, and performance through thoughtful design and testing.
Write clean, maintainable, and efficient code following best practices and coding standards.
Participate in code reviews to ensure code quality, knowledge sharing, and adherence to architectural guidelines.
Contribute to system architecture discussions and help shape technical direction within the team.
Mentor and support junior engineers, fostering a culture of learning and technical excellence.
Troubleshoot, debug, and optimize existing systems to improve performance and user experience..

Requirements

5+ years of professional experience developing and maintaining full-stack applications.
Strong proficiency in Java (in addition, NodeJS is nice to have).
Solid experience with modern frontend frameworks (Angular and/or React).
Familiarity with RESTful APIs and microservices architectures.
Experience with relational and NoSQL databases (e.g., PostgreSQL, MySQL, MongoDB).
Understanding of cloud environments and deployment tools (e.g., AWS, Docker, Kubernetes, CI/CD pipelines).
Proven ability to write well-tested, maintainable, and scalable code.
Excellent problem-solving skills, attention to detail, and a collaborative mindset.
Strong communication skills and ability to work effectively in cross-functional teams.