Backend Web Developer

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Overview

At Ultralytics, we relentlessly drive innovation in AI, building the world\’s leading YOLO models. We\’re looking for passionate individuals obsessed with AI, eager to make a global impact, and ready to excel in a dynamic, high-energy environment. Join our team and help shape the future of AI.

Location and Legalities

This full-time Backend Web Developer position is based onsite in our brand-new Ultralytics office in London, UK. Applicants must have legal authorization to work in the UK, as Ultralytics does not provide visa sponsorship.

Responsibilities

• Designing, building, and maintaining robust APIs using Python and FastAPI. These APIs are critical for managing user authentication, datasets, model training, and our inference API.
• Managing and optimizing our NoSQL databases (MongoDB) and caching layers (Redis) to ensure low latency and high availability for all HUB services.
• Developing and maintaining our cloud infrastructure on Google Cloud Platform (GCP) using Terraform for Infrastructure as Code.
• Deploying and scaling applications using containerization with Docker and serverless platforms like Google Cloud Run.
• Implementing and managing our CI/CD pipelines with GitHub Actions to automate testing and deployment, ensuring rapid and reliable releases.
• Integrating with third-party services for authentication, such as Clerk, and other essential functionalities.
• Collaborating closely with frontend and AI research teams to deliver seamless, end-to-end features for our cutting-edge AI models.

Qualifications

• 5+ years of backend development experience, with a strong portfolio of building scalable, production-grade web services.
• Expert-level proficiency in Python and significant experience with modern web frameworks like FastAPI or Django.
• Hands-on experience with NoSQL databases, specifically MongoDB, and in-memory data stores like Redis.
• Deep understanding of containerization with Docker and orchestration with Kubernetes.
• Proven experience with major cloud platforms (GCP is a strong plus) and serverless architectures like Cloud Run.
• Proficiency with Infrastructure as Code (Terraform) and building automated CI/CD pipelines using tools like GitHub Actions.
• Familiarity with modern authentication and authorization mechanisms; experience with services like Clerk is a bonus.
• Experience working in an AI/ML environment and understanding the lifecycle of training and deploying models like Ultralytics YOLO11 is highly desirable.
• Exceptional problem-solving abilities and a track record of thriving in a fast-paced, high-intensity startup culture.

Culture & Fit

Intense, high-performance environment with a focus on extraordinary results. Ultralytics operates at a relentless pace and values ownership, progress, and alignment with our mission and values. This is not a conventional workplace. We seek driven individuals prepared for the personal investment required to make a defining contribution to the future of AI.

Compensation and Benefits

• Competitive Salary: Highly competitive based on experience.
• Startup Equity: Participate directly in our company\’s growth and success.
• Hybrid Flexibility: 3 days per week in our brand-new office — 2 days remote.
• Generous Time Off: 24 days vacation, your birthday off, plus local holidays.
• Flexible Hours: Tailor your working hours to suit your productivity.
• Tech: Engage with cutting-edge AI projects.
• Gear: Brand-new Apple MacBook and Apple Display provided.
• Team: Become part of a supportive and passionate team environment.

If you are driven to redefine the capabilities of machine learning and eager to make a significant impact, Ultralytics offers an exceptional career opportunity.