Responsibilities
Design and build core components of the Modeling library using TypeScript, Angular, and HTML5.
Develop graph rendering, dynamic layout, and interaction logic for complex process models and large datasets.
Use AI coding tools daily to accelerate development and solve graph-layout, rendering, and interaction challenges.
Collaborate with Product, UX, and engineering teams to turn modeling requirements into working features.
Write clean, tested code and contribute to technical decisions while mentoring other engineers.
Requirements
~5+ years of professional frontend engineering experience.
~ Strong hands-on mastery of TypeScript, Angular, and HTML5.
~ End-to-end ownership of complex visualization or graph-based systems.
~ Demonstrated ability to solve complex visualization problems involving fast interactions, dynamic graph layouts, and graph interactions.
~ Comfort driving technical decisions and mentoring other engineers.
~ Daily hands-on experience using AI coding tools such as GitHub Copilot, Cursor, or Claude Code.




~ Based in or near Madrid and available to work onsite part of the week in a hybrid role.
~ Good written and spoken English.
~ Experience with a graph layout library such as yFiles is preferred.

Benefits
Restricted Stock Units and merit-based refresh grants for full-time employees.
Inclusive parental leave providing 24 weeks of fully paid leave for primary carers and 12 weeks for supporting carers from the first day of employment.
Unlimited PTO where applicable and generous PTO globally, with a adaptable hybrid work model.
Learning and development through the 70-20-10 framework, mentorship programs, and a dedicated learning platform.
Subsidized Wellhub memberships, mental health counseling, and Wellness Weeks.
Paid annual Impact Days for community and environmental volunteering.
Inclusion Think Tank and annual Inclusion Days.
Mission-led work focused on process intelligence, AI-driven business operations, and sustainability.

📌 Frontend Software Engineer (España)
🏢 Celonis
📍 España