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# Senior Application Engineer

- **Company:** Mollie
- **Location:** Amsterdam, Netherlands
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), PHP (Programming Language), Systems Engineering, C Sharp (Programming Language), Software Quality, Python (Programming Language), Enterprise Software Applications
- **Published:** November 2, 2026
- **Apply:** https://www.adzuna.nl/details/5949581496

## About the Role

* 6+ years of experience in developing large-scale applications, preferably with PHP or Java. Experience with Go, C#, or Python is also valued but you are willing to work with PHP or Java.
 * Proven experience in leading architectural decisions and technical initiatives, delivering end-to-end solutions, and optimising processes.
 * Experience in mentoring junior developers and implementing strategies to drive team growth and skill development.
 * Excellent communication skills, with experience working effectively with various stakeholders. Can explain complex problems and solutions in simple terms.
 * Creative problem-solving skills and the ability to shape ideas with a product-first approach, as well as analyse and resolve complex issues.
 * Ability to hold yourself accountable for your tasks, and show a willingness to proactively identify and improve things, whether technical or business related.

## Description

* Building Large-Scale Systems: Designing and engineering systems that can scale to handle high volumes of transactions.
 * Developing Products Our Customers Love: Iterating from an idea to the final solution, shaping, building, testing, and measuring the performance of the features our customers love.
 * Mentorship: Providing guidance and support to junior team members, fostering their growth through mentoring, knowledge-sharing, and hands-on collaboration.
 * Tech Leadership: Leading technical initiatives from architecture design to implementation, ensuring engineering excellence.
 * Problem-Solving: Utilising your creative problem-solving skills and analytical abilities to resolve complex issues and contribute to our mission of making financial processes effortless.
 * Documentation and Knowledge Sharing: Creating comprehensive documentation to facilitate domain knowledge sharing and set up optimised processes.
 * Engineering Excellence: Owning the code quality and engineering excellence and best practices of our systems.