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

Description:

• We are looking for an experienced Senior Backend Engineer to expand and optimize our digital advertisement SaaS suite of applications.
• You will be using technologies such as NodeJS with TypeScript, NestJS federated GraphQL, Docker, AWS, and Apache Kafka.
• 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.
• You will 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.
• 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 Senior Backend Engineer will ensure the stable, fast, and secure exchange of data between servers and end-users, and successfully share that expertise with the wider team.
• This is a high-impact role for someone who thrives on elevating engineering standards and driving a forward-thinking, AI-first approach across the organization.
• Ultimately, you 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.

Requirements:

• You must have 5+ years of experience as a Backend Engineer or in a similar role.
• Strong proficiency in NodeJS with TypeScript, web stacks, libraries, and frameworks is required.
• You should have a working knowledge of front-end technologies such as HTML5 and CSS3.
• Experience with user authentication and authorization between multiple systems, servers, and environments is necessary.
• You should have a high familiarity with fundamental design principles behind scalable applications.
• You must be able to create database schemas that represent and support business processes.
• Good knowledge of event-driven architecture, message busses, and/or pub/sub-systems is required.
• Proven expert knowledge in implementing automated testing platforms and unit tests is essential.
• Superb interpersonal, communication, and collaboration skills are necessary.
• Excellent familiarity with git, npm, docker, and Jira is required.
• Extensive experience in mentoring teammates in a respectful, educative manner is necessary.
• Using AI tools such as Junie/Cursor is a nice to have.

Benefits:

• We offer transparent, above-market salaries.
• The position is 100% remote within Europe.
• Flexible work-hours and part-time models are available.
• You will be part of a fast-growing, highly-skilled team.
• In-person department and company events are organized.
• We provide a home office, co-working space, and work-together allowance.
• Personal and professional development courses from Udemy are available.
• Case by case relocation and visa support is offered.
• 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.