Senior Fullstack Developer

We are a forward-thinking team focused on delivering high-quality software solutions. Our projects span across modern web applications, data-driven platforms, and enterprise-grade systems. We value innovation, collaboration, and continuous learning. The product that we’re working on:-Developing print, eMail & mobile push products – from personalization & templating to sending the communication via service provider-Creating UI based definition of a specific push communication including definition regarding dispatch (time/trigger) and structure of the activityWe are looking for a skilled Senior Fullstack Developer with expertise in requirement elicitation, conceptual work, Spring Boot, Next.js, and Data Reports Creation to join our team.

Your responsibilities:

• Support Crew Trinity during requirement elicitation

• Reverse engineering existing functionality

• Develop and maintain scalable backend services using Spring Boot

• Build responsive and performant frontend applications using Next.js

• Design and generate insightful data reports for internal and external stakeholders

• Collaborate with cross-functional teams to define, design, and ship new features

• Ensure code quality through unit testing and code reviews

• Optimize applications for maximum speed and scalability

Your Profile:

• Proven experience with Spring Boot and Java

• Strong proficiency in SQL for working with relational databases or similar thechnologies like BigQuery

• Experience in building and optimizing data quiring from BigQuery and Postgres tables

• Experience with data visualization/reporting tools (e.g., Thoughtspot or custom dashboards)

• Strong proficiency in Next.js, React, and modern JavaScript/TypeScript

• Familiarity with RESTful APIs and microservices architecture

• Good understanding of CI/CD pipelines and DevOps practices

• Experience in deep requirement analysis and development of technical solutions

• Excellent problem-solving and communication skills

• Experience with cloud platforms (GCP, AWS, Azure)

How about?

• Employment contract?

  Of course. With us you do not have to worry about stable employment.

• Benefits?

  We have them! Among other: corporate incentive program, sport card, private medical care.

• Lunch card?

  With the cooperation extended and permanent contract, you will receive additional funds to use for meal purchases.

• Working in a hybrid model?

  Of course! ! You work with us 2 days a week from home.

• Work wherever you want?

  In PAYBACK you have the opportunity. Working 100% remotely, also from European countries for 15 days a year.

• ‎Flexible working hours?

  Sounds great! We start working between 7 to 10.

• Trainings?

  Of course. We provide training to develop hard and soft skills.

• Convenient location?

  Sure! We invite you to our new office at Rondo Daszyńskiego, but we are currently also working remotely.

• Dress code?

  We definitely say no. There are no rigid dress code rules in our company, sneakers are more than welcome.

• Friendly atmosphere at work?

  Yes! In PAYBACK, people are the most important asset‎.

• ‎Something is missing?

  Open communication is our priority, so dare to ask!‎