Senior Application Engineer: Scale FinTech Apps Hybrid

Mollie; Amsterdam; On-site; EUR 110,000 - 150,000; Full time

Benefits offered by this job

20 days abroad

Wellbeing budget

Lifestyle support

26 holiday days

Commuter benefits

Birthday off

WFH equipment budget

Hybrid working

Discounted lunch

Health insurance

Annual Mollieverse event

Job summary

Mollie in Amsterdam is seeking a Senior Engineer to build large-scale financial products and lead technical initiatives. You’ll shape architecture, mentor juniors, and own code quality across systems that process high transaction volumes, while collaborating with product and design to ship reliable features.

This role emphasizes delivery and engineering excellence, with opportunities to influence go-to-market strategies and expand into new markets as Mollie introduces new products like Mollie

Qualifications

• 6+ years of experience building large-scale applications, preferably in PHP or Java.
• Experience leading architectural decisions and technical initiatives.
• Mentoring junior developers and driving team growth.
• Excellent communication with stakeholders and a product-first mindset.

Responsibilities

• Build large-scale systems able to handle high transaction volumes.
• Develop products customers love by iterating from idea to delivery.
• Mentor junior engineers and share knowledge across the team.
• Lead technical initiatives from architecture design to implementation.
• Resolve complex problems with creative, data-driven approaches.
• Create comprehensive documentation for knowledge sharing.
• Own code quality and engineering excellence across systems.

Skills

6+ years experience

Large-scale apps

PHP/Java

Go/C#/Python

Architectural leadership

Mentoring

Communication

Product-first mindset

Tools

None

Job description

Mollie in Amsterdam is seeking a Senior Engineer to build large-scale financial products and lead technical initiatives. You’ll shape architecture, mentor juniors, and own code quality across systems that process high transaction volumes, while collaborating with product and design to ship reliable features.

This role emphasizes delivery and engineering excellence, with opportunities to influence go-to-market strategies and expand into new markets as Mollie introduces new products like Mollie