Full-stack (Kotlin) Engineer (m/f/d) - Team Payments

Description

Job Overview

• Role: Full-stack (Kotlin) Engineer (m/f/d) - Team Payments
• Company: Flix
• Location: Berlin, Berlin, Germany
• Employment Type: Full-Time
• Category / Department: Various
• Salary: Competitive / Not Disclosed — confirm during interview
• Listing Source: Arbeitnow

Job Description

At Flix, we offer a tech-driven environment where innovation meets real-world impact, with competitive pay, strong growth opportunities, and a culture of collaboration and ownership.  

As a Full-stack Engineer with a strong backend focus (Kotlin) you will help us build the future of payments for green and smart mobility. 

You'll join our Payments Team - the heart of our checkout experience - as part of our Demand Division. Your work will directly impact how millions of people pay, how quickly their transactions are processed, and how much revenue we generate. We continuously work to improve payment authorization and conversion rates, increase payment efficiency and revenue protection, and ensure data reliability. At the same time, we're integrating local payment methods across different markets and tackling complex engineering challenges along the way. 

We build our core services using Kotlin and Spring Boot, and our interfaces with TypeScript and React.js. We also maintain some legacy PHP systems — you don't need to love it, but you should be open to working with it when needed. 

Our Payments Team consists of four backend engineers, two frontend engineers and an Engineering Manager. 

About the Role

• Build the systems that move money fast, safely, and at scale 
• Design and ship features used by millions of users 
• Write clean, tested, production-ready code 
• Own features from idea to release 
• Work closely with business, UX, frontend, and backend engineers 
• Review code, pair program, and ship often 
• Improve existing systems and clean up legacy code 

About You

• 3-4 years of experience building backend or full-stack web applications, including at least 2 years working with Kotlin in a commercial setup 
• Some experience with frontend development with JavaScript/Typescript and any modern framework (React.js, Vue.js, Angular)  
• Open to working with PHP in legacy systems when needed - prior experience is not required, the team will support your learning
• Strong object-oriented programming skills with a focus on clean architecture and maintainable design 
• Solid experience working with relational databases 
• Hands-on experience with automated testing (unit, integration, component or UI)
• Hands-on experience deploying applications to production environments using CI/CD pipelines
• Clear written and spoken English communication skills
• A collaborative, team-first mindset 

Nice to have - we'll support you in developing these skills if needed: 

• Containerization and orchestration tools such as Docker and k8s 
• Familiarity with event-driven architectures and messaging systems (e.g., Kafka) 
• Exposure to AWS or other cloud platforms 

We recognize that everyone carries a unique set of valuable skills and experiences. If you think you could have an impact even though you don't meet 100% of the requirements, we still encourage you to apply. We want to hear from you!  

What We Offer

• Travel perks: 12 free Flix vouchers + 12 discount vouchers for friends & family. 
• Work from (M)Anywhere: Depending on your role, work from another location for up to 60 days per year. 
• Hybrid work model: We are an office-first company, but we offer flexibility to balance work and life. 
• Wellbeing support: Access confidential 1:1 counselling, courses, and stress management for yourself and up to four family members. 
• Learning & Development: Take advantage of language classes, training courses, and expert-led sessions to grow your skills. 
• Mentoring Program: Connect with experienced colleagues to gain insights and accelerate your career. 

To view more local benefits specific to each office location, please check out this link: Locations - Flix Career

Why Join Flix?

At Flix, we empower our teams to push boundaries and shape the future of mobility. As we continue to scale globally, we harness cutting-edge technology to make mobility smarter, more sustainable, and more affordable.

If you're looking for a place where you can drive change and redefine how millions of people travel, Flix is the place where you can lead your journey! 

Find Jobs in Germany on Arbeitnow

Salary & Compensation

The salary for this position has not been publicly disclosed. Compensation is typically determined based on your experience, skills, and interview performance. Use your research on industry benchmarks and the cost of living in the role's location to negotiate effectively.

In addition to base salary, many employers in this sector offer a comprehensive benefits package that may include:

• Annual or performance-based bonuses
• Health, dental, and vision insurance
• Provident Fund (PF) and Gratuity contributions (India)
• Paid Time Off (PTO), sick leave, and public holidays
• Professional development budget and learning allowances
• Stock options or Employee Stock Ownership Plans (ESOPs) at select companies
• Flexible or remote working allowances
• Parental leave and family health coverage

Note: The specific benefits offered by this employer should be confirmed during the offer stage. Not all benefits listed above may apply to every organisation or role type.

Work Arrangement

Type: On-Site / Full-Time

This is an on-site, full-time position. You will be expected to report to the office or designated work location during standard business hours, Monday through Friday. Some companies offer flexible start and end times or occasional work-from-home days at the manager's discretion. The company fosters a collaborative environment with open workspaces, dedicated meeting rooms, and structured team events.

Typical Interview Process

While each organisation structures its hiring differently, candidates for this type of role typically go through the following stages:

1. Resume and application screening
2. Introductory phone or video call with HR
3. Role-specific skill or competency interview
4. Final interview with the hiring manager or panel
5. Reference checks and offer discussion

Tip: Research the company's products, culture, and recent news thoroughly before each interview round.

About the Employer

Flix is the organisation posting this opportunity. While full company details are available on the original job listing, here is what you should research before applying:

• Company size and culture: Review the company's LinkedIn profile, Glassdoor reviews, and their official website to understand team size, work culture, and employee satisfaction.
• Products and services: Familiarise yourself with what the company builds, sells, or delivers. Being knowledgeable about their offerings will set you apart during interviews.
• Recent news: Search for any recent fundraising, acquisitions, product launches, or leadership changes — these often come up in interviews and signal company health.
• Location and offices: The role is based in or around Berlin, Berlin, Germany. Confirm office address, remote policy details, and travel requirements during the process.
• Where this listing was found: This job was sourced from Arbeitnow.

How to Apply & Preparation Tips

To apply for the Full-stack (Kotlin) Engineer (m/f/d) - Team Payments position, follow these steps:

1. Tailor your resume: Customise your CV to match the specific requirements listed in the job description. Use keywords from the posting to pass Applicant Tracking System (ATS) filters.
2. Write a compelling cover letter: Even if not mandatory, a concise cover letter demonstrating your enthusiasm and fit for the role significantly improves your chances.
3. Apply via the original listing: Use the apply link on the original job post to submit your application. Avoid applying through third-party channels that may delay or lose your submission.
4. Prepare for phone screening: Be ready for an initial call within 3–7 business days of applying. Have your resume and a quiet space ready.
5. Follow up professionally: If you haven't heard back in 7–10 business days, a brief, polite follow-up email to the recruiter is acceptable and often appreciated.

Disclaimer: This listing is aggregated from a public job board for informational purposes. JobSetuu does not guarantee the accuracy or current availability of this position. Always verify the details on the employer's official careers page before applying.