Senior Backend Engineer for AI-Powered Systems

Mirage; York and North Yorkshire; On-site; GBP 85,000 - 120,000; Full time

Benefits offered by this job

Comprehensive health plans (medical,-d

Team off-sites

Job summary

Mirage is seeking backend engineers to design, build, and own end-to-end systems across services, APIs, data pipelines, and infrastructure, collaborating with product, design, client, and AI teams to turn ambitious ideas into reliable production systems.

The role suits senior or staff+ engineers who enjoy solving complex distributed systems challenges, scaling, and performance, and who have hands-on experience with LLMs and generative models.

Qualifications

• 5+ years of professional industry experience.
• Able to operate in a fast-paced environment and deliver end-to-end projects.
• Experience with LLMs / generative models.
• Startup founder or early engineer background.
• Strong problem solving fundamentals and learning ability.

Responsibilities

• Design, build, and own backend systems end-to-end (services, APIs, data pipelines, infrastructure).
• Solve complex challenges across distributed systems, scaling, concurrency, and performance.
• Integrate and operate large generative AI models in production, enabling new product experiences.
• Instrument, experiment, and iterate in production to improve system and product quality.

Skills

LLMs experience

Distributed systems

End-to-end ownership

Problem solving

Time management

Startup experience

Collaborative

Job description

Mirage is seeking backend engineers to design, build, and own end-to-end systems across services, APIs, data pipelines, and infrastructure, collaborating with product, design, client, and AI teams to turn ambitious ideas into reliable production systems.

The role suits senior or staff+ engineers who enjoy solving complex distributed systems challenges, scaling, and performance, and who have hands-on experience with LLMs and generative models.