Senior Software Engineer, Data Platform (PostgreSQL + Java Spring)

Chainalysis; Denmark; On-site; DKK 1,100,000 - 1,400,000; Full time

Job summary

Chainalysis is building the data platform for blockchain, cryptocurrency, and web3 with a Senior Software Engineer who excels in PostgreSQL and Java Spring Boot at scale. You will tackle data ingestion, optimize PostgreSQL, and explore a wide stack of modern technologies while contributing to production-ready architectures.

Join a role that emphasizes performance, reliability, and collaboration with product and design, as we deploy scalable APIs on AWS and push the boundaries of data-driven

Qualifications

• 8+ years PostgreSQL in production with design, optimization, replication and high-throughput tuning.
• 8+ years building Java Spring Boot services with REST APIs, JDBC, connection pooling, and JVM profiling.
• Experience with Kafka or equivalent streaming systems: consumer groups, offset management, partition lag debugging.
• Experience operating distributed systems on AWS across microservices and Terraform-managed deployments.
• Strong cross-system debugging skills tracing latency from metrics to logs and code paths.
• Comfort with AI-assisted development and agentic engineering practices.
• Bias to ship and iterate with product and design partners.

Responsibilities

• Own and improve the data ingest Java service for enriched transfers and aggregations.
• Design and tune PostgreSQL batching, indexing, and replication strategies for performance.
• Contribute to next-generation architecture with PoCs, latency benchmarks, and ADRs.
• Build and maintain scalable AWS API services handling thousands of requests per second.
• Help automate network onboarding end-to-end.
• Debug production issues across microservices, define SLOs, and participate in on-call rotations.
• Integrate AI tools and build agentic automation for incident triage and self-healing pipelines.

Skills

PostgreSQL

Java Spring Boot

Kafka

Tools

AWS

Kubernetes

Terraform

Python

GitHub Actions

DataDog

Humio

PagerDuty

Job description

Chainalysis is building the data platform for blockchain, cryptocurrency, and web3 with a Senior Software Engineer who excels in PostgreSQL and Java Spring Boot at scale. You will tackle data ingestion, optimize PostgreSQL, and explore a wide stack of modern technologies while contributing to production-ready architectures.

Join a role that emphasizes performance, reliability, and collaboration with product and design, as we deploy scalable APIs on AWS and push the boundaries of data-driven