Senior Backend Engineer - Node.JS (Spain, remote, f / m / d)

F11; Logroño; A distancia; EUR 45.000 - 60.000; Jornada completa

Descripción de la vacante

A leading company in the ad-tech sector is seeking an experienced Senior Backend Engineer to enhance their multifaceted SaaS products. This role focuses on microservices using technologies like NodeJS, AWS, and Kafka, balancing performance with security. The job offers flexible remote work within Europe, competitive pay, and opportunity for professional growth in a vibrant team.

Servicios

Transparent, above-market salaries

100% remote within Europe

Flexible work-hours and part-time models

Personal and professional development courses from Udemy

Relocation and visa support on case basis

Formación

• 5+ years of backend development experience.
• Strong knowledge of microservices and event-driven architecture.
• Experience mentoring team members in a collaborative setting.

Responsabilidades

• Developing and maintaining microservices and backend components.
• Ensuring optimal performance for databases and front-end requests.
• Documenting server-side processes and providing technical support.

Conocimientos

NodeJS with TypeScript

AWS

Kafka

GraphQL

REST-APIs

Microservices

Testable Code

Interpersonal Skills

Team Mentoring

Educación

5+ years experience as Backend Engineer or similar role

Herramientas

Docker

Git

npm

Jira

Descripción del empleo

3 weeks ago Be among the first 25 applicants

YOUR MISSION

We are looking for an experienced Senior Backend Engineer to expand and optimize our digital advertisement SaaS suite of applications. Using technologies such as NodeJS with TypeScript, NestJS federated GraphQL, Docker, AWS and Apache Kafka, you'll be designing microservices and other back-end components, and integrating data storage, monitoring and protection solutions. Your primary focus will be the development of all server-side logic, definition and maintenance of central databases and message busses, and ensuring high performance and responsiveness to requests from the front-end. Additionally you'll conduct regular code reviews, provide guidance to other team members, and contribute to workload estimations, project planning and architecture discussions. You will join a cross-functional team under a Product Owner to contribute to our multi-tenant SaaS product and ad-serving network. To ensure success as a Senior Backend Engineer at Factor-Eleven, you should possess extensive knowledge of NodeJS based services, good knowledge of AWS and / or Kafka, great knowledge of GraphQL / REST-APIs and experience in a similar role. An accomplished SBE will be someone whose expertise results in the stable, fast, and secure exchange of data between servers and end-users, and who successfully shares that expertise with the wider team. Ultimately, a top-class Backend Engineer at F11 should be able to envision, plan, develop, test and deliver scalable microservices in an event-driven multi-tenant architecture, and teach others to do the same.

Your Responsibilities

• Developing and maintaining microservices and back-end components
• Ensuring optimal performance of databases and responsiveness to front-end requests
• Collaborating with developers, product owners and stakeholders on the design and integration of elements
• Developing high-performance applications by writing testable, reusable, and efficient code
• Implementing effective security protocols, data protection measures, and storage solutions
• Running diagnostic tests, repairing defects, and providing technical support
• Documenting server-side processes, including database schemas, message events and sagas, as well as preparing reports
• Recommending and implementing improvements to processes and technologies
• Provide mentorship and technical supervision to team-members

Requirements

YOUR PROFILE

• 5+ years experience as Backend Engineer or similar role
• Strong proficiency of NodeJS with TypeScript, web stacks, libraries, and frameworks
• Working knowledge of front-end technologies such as HTML5 and CSS3
• Experience with user authentication and authorization between multiple systems, servers, and environments
• High familiarity with fundamental design principles behind scalable applications
• Creating database schemas that represent and support business processes
• Good knowledge of event-driven architecture, message busses, and / or pub / sub-systems
• Proven expert knowledge Implementing automated testing platforms and unit tests
• Superb interpersonal, communication, and collaboration skills
• Excellent familiarity with git, npm, docker and Jira
• Extensive experience in mentoring teammates in a respectful, educative manner

WHY US?

Factor Eleven's tech department is the inhouse tech scale-up responsible for our SaaS product suite offering localized digital advertising to enterprises of all sizes and shapes. We're powering the engine that Factor Eleven is successfully built upon and elevate the possibilities of our product on a daily basis. We're working together to fulfill our ambitions as a top ad-tech provider by continuously leveling up the quality and expanding capabilities of the entire platform, as well as our engineering and product organization.

Join our amazing team in our mission to move digital localized advertisement forward and enjoy the freedom, camaraderie and perks of our fully remote operations.

• Transparent, above-market salaries
• 100% remote within Europe
• Flexible work-hours and part-time models
• Be part of a fast-growing, highly-skilled team
• In person department and company events
• Home office, co-working space and work-together allowance
• Personal and professional development courses from Udemy
• Case by case relocation and visa support

Please note that you need to be residing in and hold a work permit of a country in the European Union to be considered for this role. Seniority level

• Seniority level Mid-Senior level

Employment type

• Employment type Full-time

Job function

• Industries IT Services and IT Consulting

Referrals increase your chances of interviewing at F11 by 2x

Get notified about new Back End Developer jobs in Spain .

Python Backend Junior Software Engineer - Remote 4 days a week (Europe) Python Backend Junior Software Engineer - Remote 4 days a week (Europe)

Barcelona, Catalonia, Spain $30,000.00-$40,000.00 3 weeks ago

Python Backend Junior Software Engineer - Remote 4 days a week (Europe)

Madrid, Community of Madrid, Spain $30,000.00-$40,000.00 3 weeks ago

Madrid, Community of Madrid, Spain 1 year ago

Madrid, Community of Madrid, Spain 1 week ago

Madrid, Community of Madrid, Spain 1 month ago

Madrid, Community of Madrid, Spain €45,000.00-€60,000.00 8 months ago

Madrid, Community of Madrid, Spain 1 month ago

Backend Python Developer (Build & Release Engineer)

Madrid, Community of Madrid, Spain 3 weeks ago

Madrid, Community of Madrid, Spain 3 days ago

Santa Cruz de Tenerife, Canary Islands, Spain 3 weeks ago

We’re unlocking community knowledge in a new way. Experts add insights directly into each article, started with the help of AI.

J-18808-Ljbffr