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Staff Software Engineer — DevPlatform (Java, AWS)

Duetto Research
Location
Croatia; Spain ; United Kingdom
Posted
2 months ago
Department
Engineering
What they actually want (must-haves)
  • 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 — AWS Kinesis, Kafka, or equivalent
  • Strong system design fundamentals: domain decomposition, modularity, schema evolution
  • AWS production experience across EKS/ECS, S3, SQS/SNS, and IAM
  • A demonstrated track record of driving architecture decisions and authoring design docs without formal authority
Nice to have
  • Working proficiency in Python for tooling, automation, or data workflows
  • Experience with MongoDB at scale — indexing, aggregation pipelines, sharding
  • Hands-on experience with AI-assisted development: LLM coding agents, prompt engineering, or MCP tooling
  • Experience evolving large monoliths toward modular or service-oriented architectures
  • Familiarity with the hospitality domain — PMS/CRS systems, rate management, or demand forecasting
What the job really is

As a Staff Software Engineer on the Dev Platform team at Duetto, you will be responsible for the architecture and evolution of the Java/Spring platform, which processes millions of rate decisions daily. Your role involves driving domain decomposition, defining service boundaries, and leading modernization initiatives while integrating AI-augmented engineering practices. You will also mentor engineers, design event-driven data flows, and enhance the platform's observability and performance.

Things to weigh
  • No salary listed
  • Role involves significant architectural authority and influence without formal management responsibilities
  • The platform is in a live transition from monolith to microservices, indicating a dynamic work environment
Job score2.4/5
Benefits1/5
Freshness1/5
Career value5/5
Role clarity5/5
Pay transparency0/5

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