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Senior Software Java Engineer
  • Kraków
Senior Software Java Engineer
Kraków, Kraków, Lesser Poland Voivodeship, Polska
ZEN.COM sp. z o.o.
7. 2. 2026
Informacje o stanowisku

technologies-expected :


  • Spring Boot
  • Microsoft SQL Server
  • Redis
  • MongoDB
  • Elasticsearch
  • Apache Kafka

technologies-optional :


  • Java
  • Kotlin

about-project :


  • ZEN.COM is a smart financial app designed for your everyday life – at home and on the go. We make payments, online shopping, and personal finance management fast, secure, and effortless. With ZEN, you can enjoy cashback on purchases, full control over your spending, and peace of mind thanks to purchase protection. A built-in multi-currency account lets you spend abroad or shop internationally with great exchange rates and no hidden fees.
  • We are looking for a Senior Java Software Engineer to join our Engineering team. If you are seeking for a challenging projects in a start-up environment with high autonomy and ownership this offer is for you.

responsibilities :


  • Take ownership of microservices covering business domains in cooperation with Product Owner.
  • Design and implement microservices following established patterns and standards to ensure high quality and maintainability.
  • Propose paradigms, standards, patterns, and create common libraries and mechanisms.

requirements-expected :


  • 5+ years with Java and Spring.
  • In-depth knowledge of OOP paradigms, design patterns, and software development practices.
  • Proficiency in using DDD, EventSourcing, CQRS, Reactive Programming.
  • Java 17+ or Kotlin, Spring Boot 3.x for writing microservices.
  • Understanding of data persistence using MsSQL, Redis, MongoDB, and ElasticSearch.
  • Asynchronous message queue with Apache Kafka.
  • Understanding of protocols and security in web environment.
  • Ability to evaluate application performance.
  • Keen to learn and share knowledge about new technologies and the financial industrys inner workings.
  • Ability to find solutions and propose architectural changes.
  • Keen eye for clean code.

offered :


  • Future career opportunities with international exposure.
  • A supportive and diverse environment that promotes employee growth and learning.
  • Flexible working arrangements to suit your needs.
  • Private medical healthcare.
  • Motivizer card.
  • Life insurance.
  • Internal and external trainings.

benefits :


  • sharing the costs of sports activities
  • private medical care
  • remote work opportunities
  • flexible working time

  • Praca Kraków
  • Kraków - Oferty pracy w okolicznych lokalizacjach


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