Staff Software Engineer — DevPlatform

New
D
Duetto ResearchHospitality Technology
Location: CroatiaFull-TimeStaff
Salary not disclosed
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Job Details

Experience
7+ years
Required Skills
AWSPostgreSQLJavaMongoDBMicroservices

Requirements

  • 7+ years building production backend systems at scale.
  • Deep expertise in Java, Spring Framework, Gradle, and JVM performance tuning.
  • Production experience with event-driven architectures such as AWS Kinesis or Kafka.
  • Strong system design fundamentals: domain decomposition, modularity, and schema evolution.
  • AWS production experience including EKS/ECS, S3, SQS/SNS, and IAM.
  • Demonstrated track record of driving architecture decisions and authoring design docs/RFCs.
  • Experience evolving large monoliths toward modular or service-oriented architectures.
  • Familiarity with AI-assisted development tools is preferred.
  • Working proficiency in Python is preferred.
  • Experience with MongoDB at scale is preferred.

Responsibilities

  • Own the architecture and technical roadmap of the Java/Spring monolith, driving domain decomposition and service boundaries.
  • Lead platform modernisation initiatives to improve modularity, reliability, and developer experience at scale.
  • Design and build event-driven data flows using AWS Kinesis and Spring Cloud Stream.
  • Operate and tune MongoDB, Redis, and PostgreSQL in a high-throughput, multi-tenant environment.
  • Strengthen platform observability through OpenTelemetry, Datadog, Prometheus, and Grafana.
  • Pioneer AI-augmented engineering workflows using Claude Code, Claude MPM, and internal MCP tools.
  • Mentor engineers across US and EU teams on code quality, system design, and technical standards.
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