Senior Software Engineer, Aggregation & Search
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Job Description
Senior Software Engineer building scalable PostgreSQL, Java, and AWS systems for Chainalysis, a blockchain analytics platform. Owning aggregation, search, streaming, and AI-enabled operational automation.
Responsibilities:
- Own and improve the data ingest Java service for enriched transfer generation and aggregations
- Design and tune PostgreSQL transaction batching, indexing, and replication strategies
- Evaluate next-generation technologies through proofs of concept and latency benchmarks
- Write ADRs and contribute to delivering next-generation architecture to production
- Build and maintain scalable AWS API services handling thousands of requests per second
- Automate network onboarding end-to-end
- Debug production issues across microservices
- Define service-level objectives and participate in the on-call rotation
- Integrate LLM-based tools into daily engineering work
- Build agentic automation for incident triage, self-healing pipelines, and intelligent alerting
- Ship and iterate alongside product and design partners
Requirements:
- 8+ years with PostgreSQL in production, including schema design, query optimization, partitioning, replication, and performance tuning under write-heavy, high-throughput workloads
- 8+ years building Java Spring Boot services, including REST APIs, JDBC, connection pooling, and JVM performance profiling
- Experience with Kafka or equivalent streaming systems, including consumer groups, offset management, and partition lag debugging
- Track record operating distributed systems on AWS, including microservices, multi-silo deployments, and Terraform
- Strong cross-system debugging skills, tracing serving delays from Datadog metrics to Humio logs to code paths
- Comfort with AI-assisted development and agentic engineering practices
- PostgreSQL, Java Spring, and Kafka experience required
- Familiarity with AWS, Kubernetes, Terraform, Python, GitHub including GitHub Actions, Datadog, Humio, and PagerDuty
- Database migration experience, Flink, Spark, lakehouse formats, Kubernetes operations, mentoring, and RFCs/ADRs are nice to have
- Legally authorized to work for any employer in the United Kingdom without restrictions
- Must address whether future sponsorship is required
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