Mollie is Hiring Senior Software Engineer (PHP)

​Job Description

Mollie is one of Europe's fastest-growing fintech companies. We are looking for Senior software engineers who want to make an impact by working on next-generation financial APIs.

What will you be doing

You will be working with us on creatingcutting-edge,user-friendly financial productsandAPIswhich are used by tens of thousands of merchants on a daily basis.

We care for quality and well-designed user experiences—for engineers and non-engineers alike. This translates to clean, well-documented REST APIs and equally smooth dashboard interfaces for our merchants.

With multiple payments per second at any point of the day, code quality and system scalability are becoming increasingly important. Helping us build scalable systems by thinking ahead will be an important part of your work.

Next to our APIs, we are working on innovative financial solutions for our merchants. We are happy to share the details over a coffee, but it's safe to say we will put your skills to the test, allowing you to

grow and learn rapidly.

Our engineering workflow

'Ship early, ship often' is our philosophy.We like to break up big challenges into smaller ones, deploying gradual product iterations and improvements numerous times every day.

We uphold code quality through thorough and cooperative peer reviews, CI/CD build pipelines and gradual feature roll-outs. In other words, we do everything to make sure you feel comfortable pushing your changes to production on a daily basis.

Our architecture

We come from a monolithic background, with our core systems being written mostly in PHP. As our company started to scale up rapidly, we have scaled our infrastructure along with it by employing domain-driven design principles and moving towards a service-oriented architecture.

We are currently looking for senior engineers for the following engineering teams. You will be considered for all of these teams. We aim to match engineers to their ideal team based on their preferences and experience.

The Payment processing team, which is responsible for our most vital systems: the API layer and the payment status processing flow. This team is heavily involved in shaping our payment APIs, in adding payment methods, and in building new ways for consumers to pay.

The Credit card team, which builds the meticulous PCI-DSS-compliant sub-systems that process all of our credit card payments. As our company expands into countries that primarily use credit card, this team works on improving our credit card proposition and ensuring we can handle credit card traffic at scale.

The Onboarding & KYC team, which ensures merchants across Europe experience a smooth onboarding experience. The team aims to make the onboarding process as simple as possible through automation, for example by collecting required merchant onboarding information through third parties. The team works on moving to event-driven systems, as they work to simplify the many variables and states that are at play during the onboarding process.

What you have

• Minimum of 6 years experience with developing web applications, preferably using PHP / MySQL stacks
• Experience with continuous deployment or continuous integration
• Knowledge of modern queueing and caching systems like RabbitMQ, Redis, or Kafka
• Passion for collaboratively improving software design
• A knack for reducing system complexity, solving cross-team problems, and for striking the right balance between quality and moving fast
• Experience with domain-driven or service-oriented architectures at scale

Our selection procedure in a nutshell

Apply by clicking the button below. The more you share about yourself and the reason you apply at Mollie, the better!

Let's first have a 'coffee chat' to introduce Mollie, the role and get to know you. This can be at our office, but this could also be via phone, Hangouts or Skype.

During the interview phase (of max. two rounds), we'll inform you as soon as we've decided whether we'd like to proceed with you.

The interview phase may include a technical assignment to test your technical merits