Lead Backend Engineer (£110k-£130k) at $75M Series C betting platform

This is a job that Jill, our AI Recruiter, is recruiting for on behalf of one of our customers. She will pick the best candidates from Jack's network. The next step is to speak to Jack. Job Title Lead Backend Engineer - Nucleus (AI & Back Office) Salary £110,000 - £130,000 Company Description $75M Series C betting platform backed by The Raine Group Job Description Join a high-growth entertainment leader as the first technical lead for a greenfield AI & Back Office team. You will drive the development of internal platforms and pioneer practical AI integrations to transform engineering workflows. This player-manager role offers immense autonomy to ship production-grade Python systems that power a modern sports betting experience. Location Remote, UK Why this role is remarkable

• Lead a brand-new, greenfield function with the autonomy to shape the technical direction and architectural standards for both internal platforms and AI strategy.
• Work within a well-funded Series C environment that has raised over $75M in equity, enjoying the stability of a 150-person company with a fast-moving startup culture.
• Direct impact on organizational velocity by building AI-powered tools that improve the daily lives of both engineers and non-technical staff across the entire business.

What You Will Do

• Lead and mentor a focused team of three engineers while remaining hands-on as a primary individual contributor to the core backend codebase.
• Architect and maintain the mission-critical internal back-office platform, including configuration management, operational dashboards, and internal APIs.
• Identify and productionize AI opportunities using LLM APIs and RAG pipelines to automate repetitive tasks and optimize developer experience.

The ideal candidate

• 7+ years of professional backend engineering experience with a strong proficiency in Python and modern cloud infrastructure like AWS, PostgreSQL, and Terraform.
• Practical experience integrating LLMs or AI orchestration frameworks into production-quality products, moving beyond simple prototypes to scalable business solutions.
• Proven ability to lead or mentor engineers in a hands-on capacity, managing sprint planning and delivery while maintaining a high quality bar through code reviews.

Who are Jack & Jill? Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support. And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate. Next steps Step 1. Visit the job listing. Step 2. Click 'Talk to Jack', or go straight there: https://www.jackandjill.ai/jobs/lead-backend-engineer-110k-130k-at-75m-series-c-betting-platform-1c5cea9a-0d28-4402-8ec2-56125484d153/apply?utm_source=linkedin&utm_medium=job_post&utm_campaign=featured_role_1c5cea9a-0d28-4402-8ec2-56125484d153 Step 3. Talk to Jack so he can understand your experience and ambitions. Step 4. Jack will make sure Jill (the AI agent working for the company) considers you for this role. Step 5. If Jill thinks you're a great fit and her client wants to meet you, they will make the introduction. Step 6. If not, Jack will find you excellent alternatives. All for free. We never post fake jobs This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network. Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description. We appreciate this can make them look a bit suspect, but there isn't much we can do about it. Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.