Lead Rust Engineer

ERNI

Madrid

Híbrido

EUR 90.000 - 140.000

Jornada completa

14 días+

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Ventajas ofrecidas por este puesto de trabajo

Certifications reimbursement

Private health insurance

Travel insurance

Additional day off per month

Emotional and legal support

Gym discounts

Flexible remuneration

Referral bonuses

23 vacation days

Language courses

Descripción de la vacante

ERNI is hiring a Lead Rust Engineer in Spain to steer the technical direction of a cross-functional team in the medtech domain. You will design, build and scale Rust services, ensure robust asynchronous processing and guide delivery with best practices.

You will lead by example, mentor engineers, promote CI/CD, and collaborate with Product, QA, DevOps and Architects to solve complex problems and deliver high-quality software.

Formación

Bachelor’s degree (or equivalent) in software/electrical engineering or a related field.
Strong Rust development experience (≥4 years) with ownership, borrowing, lifetimes, async/await.
Proficiency with Rust libraries/frameworks (Tokio, Actix-web, Rocket, Serde, SQL) and FFI.
Experience with Linux containers (Docker, Kubernetes) and basic scripting.
Experience with message brokers (RabbitMQ), event-driven architecture, event stores, event sourcing, actors.
Experience with applying design patterns relevant for distributed systems.
Exposure to AI-enabled software development practices and modern cloud-native architectures.
Familiar with DDD, TDD and BDD.
Fluent English.
SAFe/Agile experience is essential.

Responsabilidades

Define and communicate the team’s technical vision and architecture.
Convert business needs into scalable, secure solutions.
Design, build and maintain Rust services.
Lead async/concurrent development (Tokio, Serde, Actix, etc.).
Oversee deployments on Docker/Kubernetes.
Promote code reviews, automated tests and CI/CD.
Apply DDD, TDD/BDD and best practices for distributed systems.
Design reliable messaging and event-driven patterns.
Mentor engineers and remove technical blockers.
Foster a collaborative, inclusive team culture.
Support planning, estimation and prioritization.
Work with Product, QA, DevOps and Architects.
Coordinate technical dependencies across teams.
Communicate technical concepts clearly in Agile/SAFe ceremonies.

Conocimientos

Rust

Async programming

Linux containers

Docker

Kubernetes

Event-driven

DDD/TDD/BDD

SAFe/Agile

English

Code reviews/CI-CD

Educación

Bachelor's degree in software/electrical engineering or related field

Herramientas

Tokio

Actix-web

Rocket

Serde

SQL

Docker

Kubernetes

FFI

RabbitMQ

Descripción del empleo

Do you want to work for an International Service Delivery Center in Spain as a Lead Rust Engineer?

Join ERNI to build reliable, scalable software for the medtech domain that makes a real impact on patients. We’re looking for a hands‑on Lead Rust Engineer to set the technical direction of a cross‑functional team and drive high‑quality delivery.

The ideal candidate is an experienced Rust software engineer with a proven track record of leading technical initiatives in complex software environments. You enjoy solving challenging technical problems while empowering others to perform at their best.

You lead by example, encourage open communication, and create an environment where engineers can grow and deliver their best work.

What You Will Bring

Bachelor’s degree (or equivalent) in software/electrical engineering or a related field.
Strong, hands‑on Rust development experience (preferably more than 4 years) with deep understanding of core Rust concepts (ownership, borrowing, lifetimes) and asynchronous programming (async/await).
Proficiency with Rust libraries/frameworks (Tokio, Actix‑web, Rocket, Serde, SQL), and Foreign-Function Interfaces.
Experience with Linux containers (Docker, Kubernetes) and basic scripting.
Experience with message brokers (e.g. RabbitMQ), event‑driven architecture, event stores, event sourcing, and actor models.
Experience with applying design patterns relevant for distributed systems.
Exposure to AI‑enabled software development practices and modern cloud‑native architectures.
Familiar with Domain‑Driven‑Design (DDD), Test‑Driven Development (TDD) and Behavior‑Driven Development (BDD).
English fluent.
SAFe/Agile experience is essential.

Nice to have

Background in regulated domains
React and automated UI testing experience
German language skills
ISAQB or similar architecture qualification

You will be responsible for

Define and communicate the team’s technical vision and architecture.
Convert business needs into scalable, secure solutions.
Design, build and maintain Rust services.
Lead async/concurrent development (Tokio, Serde, Actix, etc.).
Oversee deployments on Docker/Kubernetes.
Promote code reviews, automated tests and CI/CD.
Apply DDD, TDD/BDD and best practices for distributed systems.
Design reliable messaging and event‑driven patterns.
Mentor engineers and remove technical blockers.
Foster a collaborative, inclusive team culture.
Support planning, estimation and prioritization.
Work with Product, QA, DevOps and Architects.
Coordinate technical dependencies across teams.
Communicate technical concepts clearly in Agile/SAFe ceremonies.

What if the project ends?

We work on a wide variety of projects, technologies, and sectors, allowing you to keep growing in different environments. If a project ends or you feel ready for a new challenge, we’ll find another one that aligns with your professional development.

Our working model

We ask you to be available for key meetings. Need to leave for a doctor’s appointment or to pick up your child from school? No problem. We trust you to deliver quality work within your 40‑hour workweek.

Our model is hybrid: we usually go to the office 2 days a week, but we love seeing each other’s faces; the best stories always happen in the office!

Benefits