Senior Backend Lead - AI/LLMs, Microservices & Mentorship

OneShot AI; Greater London; Hybrid; GBP 100,000 - 150,000; Full time

Job summary

OneShot AI is seeking an experienced senior software engineer to drive the end-to-end development of scalable backend and frontend features. You will write clean, testable code and apply TDD, design patterns, and best practices.

You will mentor engineers, raise code quality, and advocate CI/CD standards while leveraging AI/LLMs to boost productivity. Collaborating with cross-functional teams, you’ll ensure performance, reliability and strong test coverage across the platform.

Qualifications

• 8+ years of software development experience with Java/Spring Boot.
• Experience with REST APIs, microservices, CI/CD, Docker, Git, and Agile.
• Strong debugging, problem-solving and performance optimization skills.
• Exposure to AI/LLMs in engineering workflows.

Responsibilities

• Lead end-to-end development of scalable backend and frontend features.
• Write clean, testable code using best practices, TDD, and design patterns.
• Mentor engineers and drive code quality, reviews, and CI/CD standards.
• Leverage AI/LLMs and explore new tools to improve productivity.
• Ensure system performance, reliability, and strong test coverage.
• Collaborate with cross-functional teams on design, planning, and delivery.

Skills

Java/Spring Boot

REST APIs

Microservices

CI/CD

Debugging & performance optimization

Agile

Frontend development

Mentoring engineers

Tools

Docker

Git

Terraform

AWS/GCP/Azure

Job description

OneShot AI is seeking an experienced senior software engineer to drive the end-to-end development of scalable backend and frontend features. You will write clean, testable code and apply TDD, design patterns, and best practices.

You will mentor engineers, raise code quality, and advocate CI/CD standards while leveraging AI/LLMs to boost productivity. Collaborating with cross-functional teams, you’ll ensure performance, reliability and strong test coverage across the platform.