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We’re hiring a Backend Engineer for our client — someone who’ll own the backend systems that power our crypto and self‑custody platform. You’ll bring deep expertise in Go, TypeScript, RabbitMQ, and Kubernetes, paired with a passion for distributed systems, cryptography, and fintech.

What you’ll do

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- 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.

Your profile

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- 3+ years of backend experience building production systems in Go or TypeScript.

- Proven track record designing message‑driven architectures with RabbitMQ, Kafka, or similar.

- Strong knowledge of Kubernetes: deploying, scaling, and troubleshooting at scale.

- Familiarity with cryptographic concepts (key management, signatures, encryption) and a curiosity to dig deeper.





- You’re an individual contributor who loves solving hard problems, writing code end‑to‑end, and shipping reliable services.

Nice to haves

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- Background in Rust, or systems programming.

- Experience with Infrastructure as Code (Terraform, Cloud Deployment Manager).

- Open‑source contributions or side projects showcasing your distributed systems chops.

- Familiarity with observability tools (Prometheus, Grafana, OpenTelemetry).

Hiring Process

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- Culture fit

- Technical challenge (4h)

- Technical interview

- Reference calls

About Joppy

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Seniority level

Associate

Employment type

Full-time

Job function

Business Development

Industries

Technology, Information and Internet

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📌 Backend Engineer (Typescript) (50K€-65K€)
🏢 Joppy
📍 Barcelona