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Backend Engineer (Typescript) (50K€-65K€)

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Joppy

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

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

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

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

Culture fit

Technical challenge (4h)

Technical interview

Reference calls

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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) ( -65K€)
🏢 Joppy
📍 Madrid