Senior Application Engineer at Mollie

✨ The Stack take on this Mollie job

• 🏢 This is Mollie's only job here right now
• 🛂 Visa: Highly Skilled Migrant permit. 30 or older: €5,942 a month guide
• 💡 No salary shown. Ask Mollie if it is above the minimum.

Updated 2026-11-01, from our data and official sources.

About the role

Responsibilities:
- Design and build large-scale payment and financial systems; own features end-to-end from concept through production.
- Iterate from idea to delivery: shape requirements, implement features, test, measure performance and refine based on customer feedback.
- Lead technical initiatives and architectural decisions; establish and promote engineering best practices and documentation.
- Mentor and coach junior engineers, participate in hiring and onboarding, and foster knowledge sharing across teams.
- Drive problem-solving during incidents and ensure systems meet standards for scalability, reliability and operational excellence.

Requirements:
- 6+ years of experience building large-scale applications with a strong track record of shipping production systems.
- Proficiency in PHP or Java; experience with Go, C# or Python is a plus and willingness to work in the primary stack.
- Proven experience leading architecture and technical initiatives and mentoring engineers to deliver end-to-end solutions.
- Strong communication skills, product focus and a bias for shipping high-quality customer-facing features.

Responsibilities

Design and build large-scale financial systems and products, shipping features end-to-end. Mentor junior engineers, lead architectural initiatives, and uphold engineering excellence across projects.

Requirements

6+ years in developing large-scale applications; proficiency in PHP or Java; experience with Go, C#, or Python; proven architectural leadership and mentoring; strong communication.

Key skills

• PHP — in 41 other listings on The Stack
• Java — in 334 other listings on The Stack
• Go — in 223 other listings on The Stack
• C# — in 45 other listings on The Stack
• Python — in 1142 other listings on The Stack
• Architecture — in 21 other listings on The Stack
• Mentoring — in 168 other listings on The Stack
• Leadership — in 34 other listings on The Stack
• Documentation
• Systems Design
• Scalability
• End-to-end Development

On The Stack (as of 2026-11-01)

• This is Mollie's only listing on The Stack.
• 56 visa-sponsored jobs in the Netherlands on The Stack, posted in the last 60 days.

Frequently asked questions about Mollie

Is this Senior Application Engineer role still open?

It was posted on 2026-10-31 and is listed as active on The Stack. Confirm on Mollie's application page before applying.

Does Mollie offer visa sponsorship?

This listing is marked as offering visa sponsorship. Eligibility rules are set by the employer, so check the details on Mollie's site.

Where is this role located?

The listing gives the location as Amsterdam, NL, Netherlands. It is marked on-site.

What skills does this role ask for?

The listing names: PHP, Java, Go, C#, Python, Architecture, Mentoring, Leadership, Documentation, Systems Design, Scalability, End-to-end Development.