Full-time

Back End Developer Engineer

Posted by Confidential • Barcelona, Provincia de Barcelona, Spain

📍 Barcelona, Provincia de Barcelona 🕒 February 23, 2026

About the Role

Web3 Insights is proud to represent a well-funded fast-growing company redefining how developers build secure, seamless, and scalable wallet infrastructure. We're hiring a Backend Engineer - someone who’ll own the backend systems that power our crypto and self‑custody platform. You’ll bring deep expertise in Go, and TypeScript.



Design, implement, and operate scalable, resilient backend services handling millions of API requests per month.

Author high‑performance microservices in Go and TypeScript , ensuring clean, maintainable code and robust test coverage.

Architect messaging workflows using RabbitMQ (or similar), optimizing for throughput, latency, and fault tolerance.

Manage and evolve our cloud infrastructure on GCP - VMs, Kubernetes clusters, CI/CD pipelines, networking, and monitoring.

Drive technical decisions: from database schema design to distributed cache strategies and sharding approaches.



3+ years of backe...

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