Junior Backend Engineer, Messaging & Microservices

At Nucleus, we build intelligent systems that depend on strong, reliable backend foundations. The quality of our backend infrastructure shapes how well our products perform, scale, and serve real users. We’re looking for a Junior Backend Engineer to join our team and help build the systems behind our products. In this role, you’ll work on message queues, microservice-based services, and basic DevOps tasks that keep our backend reliable and easy to operate.

What you’ll do

Help build and maintain backend services that communicate through message queues such as RabbitMQ, Kafka, or similar tools. Support a microservices architecture by working on small, focused services that connect through APIs and queues. Assist with basic DevOps tasks, including writing simple deployment scripts, working with CI/CD pipelines, and helping monitor services. Troubleshoot and debug issues related to service communication, performance, and reliability. Work with other engineers to improve backend code quality, service stability, and development workflows. Contribute to documentation for services, integrations, and internal processes.

What we’re looking for

Basic backend development experience through personal projects, internships, academic work, or a first full-time role. Familiarity with backend programming concepts and building REST APIs. Interest in learning message queues, distributed systems, and microservice-based design. Curiosity about DevOps practices such as CI/CD, monitoring, and automation. Comfort debugging issues and thinking through problems step by step. Good communication skills and a collaborative approach to working with others. Eagerness to learn, ask questions, and grow in a fast-moving engineering environment.

Why Nucleus At Nucleus, you’ll get hands-on experience with modern backend systems, including queues, microservices, and DevOps practices. You’ll work with a supportive team that values mentorship, steady growth, and thoughtful engineering. This is a place where junior engineers can learn quickly and contribute meaningfully. You’ll have the chance to work on production systems early and see the impact of your work firsthand. If you’re excited to build reliable backend systems and grow with a team working at the frontier of intelligent products, we’d love to hear from you.