SEEKING WORK | Berlin, CET | Remote: Yes | Full-time freelance or 20h+/week Experienced Go architect (15 years; Zalando, StreamElements). I untangle fragile mi

SEEKING WORK | Berlin, CET | Remote: Yes | Full-time freelance or 20h+/week Experienced Go architect (15 years; Zalando, StreamElements). I untangle fragile microservice architectures and make them boring again. I’ve modernized fragmented microservices for hyper-growth companies, migrated Riak → Postgres under hard deadlines, and turned chaotic legacy systems into stable, scalable platforms. Recent impact Overhauled business-critical messaging systems for high-volume, low-latency workloads. Simplified/retired 11+ microservices, reduced latency, and improved observability — enabling a hyper-growth partner launch ahead of competitors. Led discovery, design, and delivery of an auditable, multi-source, high-throughput inventory tracker — giving an e-commerce client immediate stability and a scalable foundation for years of growth. Migrated an auth database from Riak → Postgres under a hard deadline (World Cup traffic). Zero downtime and smooth scaling through peak load. Ideal clients Berlin/EU scale-ups with distributed systems complexity — fragile microservices, data-intensive platforms, or legacy architecture that's become a liability. €100+/hr retainer. Fixed-bid projects also considered. Available now for 3–6 months. The usual stack Go, Postgres, Kafka/NATS, Kubernetes, AWS/GCP Get in touch Email: barry@barryhennessy.com Portfolio/CV: barryhennessy.com