Dentsu

Senior Backend Engineer

Dentsu
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6 months ago
Zürich, SwitzerlandSenior

Responsibilities

  • Design, develop, and maintain secure, scalable backend services and APIs using Kotlin and Spring Boot.
  • Build and operate Apache Kafka integrations with producers, consumers, Kafka Streams, Avro schemas, and exactly-once semantics.
  • Own data models, query optimization, schema migrations, replication, and connection pooling across PostgreSQL and MySQL.
  • Support deployment, monitoring, observability, CI/CD, and DevOps tooling on OpenShift and Kubernetes.
  • Apply OAuth2/OIDC, authentication, authorization, encryption, and other backend security practices.
  • Conduct code reviews, uphold engineering standards, mentor junior engineers, and provide technical guidance.
  • Create technical documentation for system design, implementation, and API contracts.

Requirements

  • At least 5 years of professional backend engineering experience.
  • Proficiency in Kotlin and strong hands-on experience with Spring Boot, including Spring MVC, Spring Security, Spring Data JPA, Spring Cloud, and Spring Actuator.
  • Strong Apache Kafka experience, including Kafka Streams, Schema Registry, and exactly-once semantics.
  • Proficiency with PostgreSQL and MySQL, including data modeling, query plans, replication, and HikariCP connection pools.
  • Practical experience with Kubernetes or OpenShift and familiarity with distributed systems, microservices architecture, and design patterns.
  • Familiarity with OAuth2/OIDC and backend security fundamentals, plus proficiency with Git and CI/CD practices.
  • German proficiency at B2+ level and business-proficient English.
  • A bachelor's degree in computer science or information technology, or equivalent experience, is preferred.
  • Experience in banking or fintech, Spring Cloud, distributed tracing, Flyway or Liquibase, and French or Italian is advantageous.

Benefits

  • 25 vacation days, two volunteer days, and three additional wellness days.
  • Mental Health First Aider and Employee Assistance program.
  • 40-hour work week with overtime compensation and flexible working hours.
  • Independent home-office management and a hybrid work arrangement in Zürich.
  • Ergonomically equipped office space, pet-friendly offices, and workation possibility.
  • Dentsu Academy access, on-site learning, online language courses, and 40 additional annual learning hours.
  • Corporate benefits platform, referral bonus program, and team events.

Tech Stack

Apache KafkaFlywayGitKotlinKubernetesMySQLOpenShiftPostgreSQLSpring Boot

Categories

Dentsu

About Dentsu

10,000+ employees

Dentsu is a global advertising and marketing services group that plans and buys media, develops creative campaigns, and builds data- and technology-led customer experiences for brands. It earns revenue from agency fees and media services across a network that includes Carat, iProspect, and Merkle. Founded in 1901 and headquartered in Tokyo, Dentsu is publicly traded in Japan and serves clients across many sectors worldwide.

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