Backend Engineer (£40,000) at London software studio and legal-tech lab

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

Backend Engineer

Salary

£40,000

Company Description

London-based software studio and research lab building proprietary legal-tech and production systems

Job Description

As the first backend hire at this high-standard software studio, you will own the technical architecture and production health of revenue-critical systems. Working directly with the founder, you will build and operate Python (FastAPI) services, ensuring reliability and correctness are prioritized over shipping speed in a production-first environment.

Location

London, UK

Why this role is remarkable

• Rare opportunity to be the first backend hire, gaining total technical autonomy and direct collaboration with the founder on core product decisions.
• Join a studio that values engineering integrity and "correctness before scale," moving away from high-velocity ticket culture to deep operational ownership.
• Diverse impact across proprietary research software for the legal sector and stabilizing critical external systems where your code directly affects revenue.
  
  

What You Will Do

• Design, develop, and maintain robust APIs using Python (FastAPI), Postgres, and Redis for production environments.
• Take full responsibility for the deployment and operational health of services, ensuring high reliability under real-world loads.
• Architect and implement system improvements, including transitioning to event-driven architectures and optimizing infrastructure on AWS/Kubernetes.
  
  

The ideal candidate

• Has 4+ years of experience building and operating production-grade services with a strong command of Python and SQL (Postgres).
• Demonstrates a history of technical ownership, having successfully managed scaling or reliability projects from development through to production.
• Proficient with modern infrastructure tools such as AWS, Docker, or Kubernetes and understands the trade-offs of designing maintainable, explicit systems.
  
  

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/backend-engineer-40-000-at-london-software-studio-and-legal-tech-lab-a6a48746-eed4-437e-a382-a0648ccbe438?utm_source=linkedin&utm_medium=job_post&utm_campaign=featured_role_a6a48746-eed4-437e-a382-a0648ccbe438

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.