Lead Software Engineer (Kotlin)- Buyer Experience (f/m/d)

Ratepay • Berlin

Full-time

Berlin

from today

Here's What You'll Be Doing

Together we work on next-generation solutions for major online retailers and marketplaces, thereby developing the digital payment solutions of tomorrow's online world.

As a Lead Software Engineer (m/f/d) at Ratepay, you will make a significant contribution to our shared mission of building and developing secure and simple payment solutions for the online retail market, which still continues to grow.

Your tasks at Ratepay, among others:

Lead the development, operation, and continuous improvement of scalable software systems.
Integrate internal and external APIs in a microservices architecture, ensuring system interoperability.
Actively participate in the agile development process, collaborating with cross-functional teams to deliver features.
Support and groom the entire engineering team, fostering growth, knowledge sharing, and collaboration through methods like pair programming and code reviews.
Ensure adherence to best practices in software development to maintain high code quality.
Collaborate with the team and the Principal Engineer to make key technical decisions.
Ensure alignment between business objectives and technical implementation.

Your profile

At least 10 years of professional working experience in JVM based backend development
Hands-on expertise in Software Engineering using Kotlin, Spring/SpringBoot, Git, Maven, Docker, Jenkins and solid experience with cloud technologies (AWS)
Experience in leading and driving initiatives and projects
Very good conceptual knowledge about RESTful APIs, microservices, event-driven architecture (Apache Kafka), OAuth (Auth0) and Contract Testing via PACT
Experience in a customer facing full-stack environment and understanding of front-end technologies is a plus
Involvement in every step of the software lifecycle and internalisation of the DevOps approach ("you build it, you run it")
Self-organised work as well as collaboration within the team and with other teams at Ratepay to deliver high value to our stakeholders and merchants
Very good English language skills

Equal Opportunities & Diversity

We value our diversity and welcome everyone to our team. Regardless of ethnic and social background, religious beliefs, worldview, gender, sexual orientation, physical and mental limitations, age, marital status, educational background and nationality.
With over 250 employees and 40 different nationalities, we take our values seriously. These include; ownership, growth, integrity, collaboration, customer centricity and inclusion (4/7 of our C-Level Board members are female).

The sweet spot! Let’s talk perks.

We're more than just a workplace – we're a vibrant community of innovators, collaborators, and visionaries who love what we do and reward those who work with us. Here, your career isn't just a job. It's an opportunity to thrive, learn, and make a difference. Take a look at these great personalised benefits of working at Ratepay On a monthly basis, you can choose between mobility, fitness, food, training and much more.

Flexible working hours

Work remotely (EU for up to 4 weeks a year)

28 vacation days per annum

Financial security including Pension plan

Medical extras (Eye examination etc.)

Learning and development (Access to various self-development platforms such as language learning and skills enhancement.

Monthly lunches as well as Beets & Roots discounts

Community connect. We take certain days off to give back to the community as a unit. (Animal shelters, homeless aids, and various charities)

Ratepaw community: Our office has a floor which is dog-friendly. So, bring your pawsome pet to work when needed.

Gym memberships and fitness

Health & wellbeing

Our Recruitment Process

Step 1: Intro Call with a Senior Talent Partner

The first call with our recruiter is meant to be an introduction to ratepay, our culture and recruitment process.

We want to get to know you better, understand who you are beyond your CV and find out what excites you.

Step 2: Meet your future Manager

This step is designed to get to know your future manager and the role better.

During this conversation we will dive deeper into your experience and share more about the team you would work with and share expectations from both sides.

Step 3: Team interview & skill assessment

This step looks slightly different in different business areas but is to assess technical and culture add.

It usually consists of a role-specific case study or technical assessment as well as assessing values alignment with some senior members of the team you would be joining.

Step 4: Coffee chat (optional)

This step doesn't occur in every process, it depends on the role.

The coffee chat would generally take place with either a senior stakeholder from the business area you are joining such as a C-level leader or Head of department, or in some cases with a Senior HRBP.

Ready to shape the future of digital payments? Join our team

Apply now!

Want to learn more about other opportunities at ratepay? Explore our other departments:

Commercial Customer Service Data & Analytics Finance & Controlling Legal, Compliance, IT Security Marketing & Communications People & Organisation Product Risk Management Strategy & Special Projects Working students, Interns Initiative application