Senior Backend Engineer - NodeJS

Summary

Join Factor Eleven as a Senior Backend Engineer to expand and optimize our digital advertisement SaaS suite. You will design microservices and back-end components using NodeJS, TypeScript, NestJS, Docker, AWS, and Apache Kafka. Responsibilities include developing server-side logic, maintaining databases and message busses, ensuring high performance, conducting code reviews, and mentoring team members. Success requires extensive NodeJS knowledge, AWS/Kafka familiarity, and GraphQL/REST API expertise. You'll contribute to a cross-functional team, working on a multi-tenant SaaS product and ad-serving network. The ideal candidate will be able to design, develop, test, and deliver scalable microservices and share their expertise with the team.

Requirements

• 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

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

Benefits

• 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