Senior Software Engineer (Java + Kotlin) and AWS (Hybrid work: 2 days per week from the Berlin office)

Project - the aim you'll have

Industry & Brand Overview Our client is a leading e-commerce company specialized in fashion, shoes, accessories, beauty – i.e. retail / online fashion platform. We are seeking an experienced Senior Software Engineer with strong cloud expertise — especially in AWS and Kubernetes — and the ability to deliver scalable, high-quality solutions. The ideal candidate combines deep technical knowledge with solid engineering fundamentals, a hands-on development approach, and a passion for modern technologies. Knowledge of JavaScript will be an additional advantage.

Position - how you'll contribute

 

  • Design, develop, and maintain backend services using Java and Kotlin.
  • Build scalable, resilient cloud-native solutions leveraging AWS services and Kubernetes.
  • Collaborate with cross-functional teams to define architecture, technical requirements, and implementation approaches.
  • Ensure high code quality through best engineering practices, including code reviews, testing, and continuous integration.
  • Optimize system performance, reliability, and security across distributed environments.
  • Contribute to the design and evolution of microservices and cloud infrastructure.
  • Troubleshoot complex issues across the stack and drive root-cause analysis.
  • Stay up to date with emerging technologies and propose improvements to enhance the platform.
  • (Nice to have) Integrate or collaborate on frontend or full-stack components using JavaScript when needed.
Expectations - the experience you need
  • 5+ years of professional experience in software engineering, with a strong focus on Java and Kotlin.
  • Proven experience building cloud-native applications on AWS.
  • Hands-on expertise with Kubernetes and containerized application development.
  • Solid understanding of distributed systems, microservices architecture, and system design principles.
  • Strong knowledge of CI/CD pipelines, testing practices, and modern development workflows.
  • Ability to write clean, maintainable, and well-structured code.
  • Experience working in agile environments and collaborating with cross-functional teams.
  • Strong problem-solving skills and the ability to troubleshoot complex technical issues.
  • Excellent communication skills and a proactive, ownership-oriented mindset.
  • Openness to hybrid working (2 days a week from the Berlin office).
Additional skills - the edge you have
  • Familiarity with JavaScript and willingness to contribute to full-stack tasks when needed.
Our offer – professional development, personal growth
Hover on each benefit to learn more
Decide on the form and conditions of your employment
*Applicable in: Poland & Latam & MD/RO
Flexible employment and remote work
*Applicable in: Poland & Latam & MD/RO
Work with the latest technologies for industry leaders
*Applicable in: Poland & Latam & MD/RO
International projects with leading global clients
*Applicable in: Poland & Latam & MD/RO
Travel to clients’ and work in their environments
*Applicable in: Poland & MD/RO
International business trips
*Applicable in: Poland & MD/RO
Work comfortably in a relaxed and inspiring atmosphere that does not enforce a dress code
*Applicable in: Poland & Latam & MD/RO
Non-corporate atmosphere
*Applicable in: Poland & Latam & MD/RO
Develop your skills at work – language classes come to you
*Applicable in: Poland & MD/RO
Language classes
*Applicable in: Poland & MD/RO
Develop your competences and skills through skill centers and webinars
*Applicable in: Poland & MD/RO
Internal & external training
*Applicable in: Poland & MD/RO
Take care of the health of you and your loved ones
*Applicable in: Poland & MD/RO
Private healthcare and insurance
*Applicable in: Poland & MD/RO
Work out, swim and enjoy other fun activities
*Applicable in: Poland & MD/RO - monthly sport budget
Multisport card
*Applicable in: Poland & MD/RO - monthly sport budget
Take part in activities that support your physical and mental health
*Applicable in: Poland & Latam & MD/RO
Well-being initiatives
*Applicable in: Poland & Latam & MD/RO
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  • Senior Software Engineer (Java + Kotlin) and AWS (Hybrid work: 2 days per week from the Berlin office)
    Software Development, Java, Kotlin, REF1843U, Kraków, B2B/UOP

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