Senior Backend Java + ADX​/KQL developer

Responsibilities

Java backend / event-driven processing

• Implement Event Hub consumption patterns: consumer groups, partition awareness, batching, checkpointing strategy, retries/DLQ, idempotency.
• Design and tune thread pools and scheduled work (e.g., backfills/replays/retries) with safe operational controls.
• Build robust JSON parsing/validation, schema evolution handling, and error routing.

• Write KQL queries for search/filter use cases and operational diagnostics.
• Profile and tune ADX queries (query plan/diagnostics), reducing p95 latency and cost for hot queries.
• Create clear query patterns and guardrails (parameterization, paging strategy, consistent query shapes).

• Define clean API contracts for search results: returned fields, filters, pagination semantics, error handling.
• Implement retrieval "views" carefully (versioned, testable, limited scope) to avoid a server-side dumping ground.
• Apply JWT authentication patterns and integrate with internal auth requirements.

• Senior-level experience shipping and operating production backend services.
• Java 17: concurrency/thread pools, scheduled work, resilience patterns, profiling (CPU/GC/threading).
• Event-driven systems (Event Hub/Kafka equivalents): idempotency, retries/DLQ, replay/backfill safety.
• ADX / KQL: proven ability to write and tune/profile queries (not just run them).
• API design: production experience building search/filter endpoints and retrieval endpoints with stable contracts.
• AKS/Kubernetes literacy: can deploy and debug your service (pods, logs, resources, probes, HPA basics).
• Security basics: JWT validation/claims awareness; practical Managed Identity understanding for accessing Azure services.

• Bachelor's degree in equivalent field.

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