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Wise · Tallinn, Estonia

# Senior Software Engineer I - Payment Processing Platform

Tallinn, Estonia Full-time Senior individual contributor Software Engineering 

Listed on Wise’s official careers site. Posted February 10, 2026. Check that it is still open and apply there.
[Apply on Wise’s careers site →](https://jobs.smartrecruiters.com/Wise/744000108484376-senior-software-engineer-i-payment-processing-platform)

[OpenNash Jobs](https://jobs.opennash.com/) / [Wise](https://jobs.opennash.com/companies/wise/) / Senior Software Engineer I - Payment Processing Platform

## Job description

Payment Processing Platform Our goal is to provide reliable and scalable services that can be used by all the other product teams in the company. We provide such systems for transfers, and payouts domains. We want our platform to be easy to use, integrate, and extend, while also enforcing good practices, risks mitigation, and maintaining high performance.

### What does it take

A strong product mindset and passion for user experience, you prioritise work with the customers in mind and make data-driven decisions to fix customer pain-points Great communication skills to drive cross team projects The ability to articulate complex, technical concepts to non-technical audience You enjoy writing testable, easy to extend, high-quality code You have solid Java 11 plus knowledge, experience with Spring framework and microservice best practices Advocate for best coding practices, code reviews and open feedback Experience Distributed and Concurrent Systems Hands on knowledge of microservice architecture patterns Experience working with relational databases, messaging queues and designing schemas

## Qualifications

What does success look like?: You’ll have onboarded and found your place through understanding your team and tribe vision and how you can contribute You’ll understand how our values can help you guide your work You’ll understand the reasons behind problematic payments and customer difficulties and how to go about solving them You’ll be raising the automation level to enable scaling of the product Understand our customers and the impact our product makes in their lives.

You’ll help us scale-up and build a world class money transfer product by finding solutions to our technical challenges and opportunities What you get back: The empowerment to solve problems your way and the freedom to have real impact on customers’ lives. Loads of development opportunities in a growing team through launching new products / features consistently in an in-demand region. A fun work environment with social activities and events Travel opportunities to other Wise offices around the world

## At a glance
- Posted by the employer: Feb 10, 2026
- First seen by OpenNash: Jul 16, 2026
- Last checked: Oct 18, 2026
- Listed for: 250 days
- Location: Tallinn, Estonia
- Employment type: Full-time[Apply on Wise’s careers site →](https://jobs.smartrecruiters.com/Wise/744000108484376-senior-software-engineer-i-payment-processing-platform)

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