paymenttools

Senior Engineer

paymenttools

full-time

Posted on:

Location Type: Hybrid

Location: Berlin • Germany

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Job Level

Senior

Tech Stack

AWSCloudDistributed SystemsDockerGoogle Cloud PlatformGrafanaJavaKotlinKubernetesMicroservicesNoSQLPrometheusSpringSpring BootSpringBoot

About the role

  • Contribute to architecture and system design in a complex backend landscape, influencing how the system evolves
  • Be hands-on with coding, solving complex problems while mentoring and supporting the team
  • Evolve existing systems and ensure scalable, maintainable, and robust solutions
  • Make informed decisions in ambiguous or complex situations, balancing short-term delivery with longer-term system health
  • Collaborate closely with adjacent teams and stakeholders, ensuring clear communication of technical decisions
  • Actively mentor and coach team members, supporting their professional growth
  • Support the team in taking technical direction, helping shape systems and practices without being the sole decision-maker

Requirements

  • 7+ years of experience in backend engineering, ideally in high-throughput or regulated systems
  • Passion for coding, with deep knowledge of Java and/or Kotlin (JVM) and frameworks like Spring / Spring Boot
  • Experience with microservices, distributed systems, and API design
  • Proven experience in architectural decisions and system design at a senior level
  • Strong communication skills to explain technical concepts clearly and align teams and stakeholders
  • Experience with cloud environments (AWS or GCP) and Docker/Kubernetes
  • Knowledge of CI/CD, monitoring, and system operations (e.g., Prometheus, Grafana)
  • Solid understanding of security concepts (authN/authZ, encryption, secure data handling)
  • Strong experience with relational databases, ideally complemented by NoSQL
  • Curiosity for emerging technologies, e.g., AI-driven development or systems
  • Experience with concurrency and parallelism is a plus
  • Fluent English; German skills are a plus.
Benefits
  • Deutschland ticket, subsidized subscription
  • 1.000 euro annual learning and development budget + internal training platforms
  • Discounts on travel, fashion, technology,  and more through our corporate benefits 
  • REWE discount card for discounts for REWE group retailers 
  • JobRad, affordable bicycle leasing!
  • Company pension plan 
  • Insurance Services
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
JavaKotlinSpringSpring Bootmicroservicesdistributed systemsAPI designrelational databasesNoSQLCI/CD
Soft Skills
communicationmentoringproblem-solvingcollaborationdecision-makingcoachingprofessional growthinfluencingcuriosityadaptability