Senior Software Engineer, Backend & Infra

As a Senior Software Engineer focused on Backend & Infra at Lumino, your primary responsibilities will include designing and building robust backend systems and APIs for our decentralized machine learning platform. You'll take ownership of critical backend systems and ensure they are scalable, fault-tolerant, and high-uptime. This role requires engaging with a team of experts while implementing cutting-edge research that significantly impacts the AI training landscape.

To qualify for the Senior Software Engineer, Backend & Infra position at Lumino, you should have at least 7 years of software engineering experience with a strong focus on backend engineering and infrastructure. Furthermore, a proficiency in programming languages like Python, Golang, or Rust, familiarity with container orchestration tools like Kubernetes, and experience with cloud platforms such as AWS or GCP are vital.

In the Senior Software Engineer role at Lumino, you'll work on exciting projects that involve building scalable backend infrastructure for AI models. Your projects will include optimizing cloud-based systems, deploying solutions across thousands of GPUs, and collaborating on innovative solutions in decentralized and distributed machine learning.

At Lumino, you can expect a fast-paced and highly collaborative work environment where you have the autonomy to experiment and innovate. With a flexible working schedule consisting of three days in-office and two days of remote work each week, you’ll enjoy a dynamic workplace designed to foster creativity and efficient problem-solving.

Lumino offers a competitive salary along with a share of the equity pool as part of its benefits. Additionally, you’ll receive comprehensive medical, dental, and vision insurance, the equipment necessary for your role, subscriptions to tools like Github Co-Pilot, and a culture that supports collaboration, learning, and growth.

When answering this question, highlight your specific projects and technologies you’ve used, focusing on the backend languages you're proficient in and any infrastructure frameworks you have implemented. Discuss your role in designing scalable systems and how you ensured fault tolerance and efficiency.

Describe your methodology for API design, including considerations for security, usability, and scalability. It’s beneficial to reference any RESTful or GraphQL APIs you’ve built while addressing challenges you've encountered and how you resolved them.

Share your hands-on experience with tools like Kubernetes and Docker Swarm. Discuss how you have utilized these tools in your previous projects and any challenges you faced during deployment and management of containerized applications.

Provide a clear example of a critical issue you encountered, detailing the steps you took to troubleshoot and resolve it. Focus on your problem-solving skills and how effective communication with your team helped you methodically address the issue.

Highlight specific techniques you have employed for performance tuning, such as load testing, code optimization, and monitoring system metrics. Discuss how these strategies led to improvements and ensured high availability in previous projects.

Discuss your methods for staying informed about technology trends, including reading relevant publications, participating in tech communities, or attending conferences. Emphasize your passion for continuous learning and adapting to new innovations that can enhance your work.

This is your chance to express your enthusiasm for Lumino’s mission and culture. Connect your own experiences and values with the company's goals, showcasing how your skills can contribute to their vision of unlocking AI's potential.

Provide insights into your experience with various cloud platforms like AWS, GCP, or Azure. Discuss specific projects where you implemented cloud solutions, focusing on how these platforms facilitated scalability and enhanced efficiency for your backend systems.

Share examples of successful collaboration in past roles. Emphasize your communication skills, willingness to share ideas, and how you seek and give feedback to ensure a productive and innovative working environment.

Reflect on a notable project or accomplishment that you are particularly proud of. Detail the challenges you faced, what you learned, and how this specific achievement has shaped you as a Senior Software Engineer.