Back End Developer in London

Back End Developer in London

London Full-Time 32000 - 48000 £ / year (est.) No home office possible
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At a Glance

  • Tasks: Own core systems, shape APIs, and ship production code from day one.
  • Company: Join a high-growth AI venture studio with a focus on creator-led businesses.
  • Benefits: Earn £400/day, enjoy upskilling allowance, and access top AI tools.
  • Why this job: Make a visible impact quickly in a dynamic, low-ego environment.
  • Qualifications: Experience in Python development and a passion for B2C products.
  • Other info: Work directly with the CTO and gain rapid exposure to real projects.

The predicted salary is between 32000 - 48000 £ per year.

You’ll step in as a Founding Engineer within an early-stage AI venture studio that builds and launches creator-led B2C software businesses at speed. This is a backend-leaning role (circa 80% backend) where you will own core systems end to end, shaping APIs, designing data models, and shipping production code used by real users from day one. You won’t be handed Jira tickets and told what to build. Instead, you’ll work directly with the CTO, making architectural decisions.

This is a contract role for someone who thrives in ambiguity, enjoys high ownership, and wants to make a visible impact quickly, without the drag of corporate process.

What They’re Looking For (Non-Negotiables)

  • Ideally, you’ve worked in B2C businesses or VC-backed startups where products scaled rapidly and engineering had to keep up.
  • You naturally take responsibility, communicate clearly, and act with intent, with more founder mentality than feature factory.
  • You’re comfortable building things that don’t yet have perfect answers.

What You’ll Work With

  • Python development at a high level
  • FastAPI or adjacent Python backend frameworks
  • API design and backend architecture fundamentals
  • PostgreSQL and/or MongoDB
  • React or React Native for frontend collaboration
  • AWS serverless infrastructure
  • Docker for bespoke services

Nice to Haves

  • B2C mobile or consumer product experience
  • Experience in VC-backed or hyper-growth environments
  • Node.js development alongside Python
  • Vector databases such as Chroma and embedding pipelines
  • LangChain, CrewAI, or similar AI orchestration frameworks
  • Practical security and data privacy awareness
  • Linear or similar planning tools
  • Experience with image modelling AI systems
  • AI-assisted development using tools such as Claude Code

Why Join / Projects

This venture studio partners directly with large creators (often with 1M+ followers) as co-founders, meaning every product launches with built-in distribution, immediate users, and fast feedback loops. Under the hood, you’ll be building on an internal AI-first factory made up of reusable components, agent-driven workflows, and a growing knowledge graph that improves with every product shipped. The goal is simple: launch high-quality ventures dramatically faster than traditional startups. You’ll gain exposure, ownership, and shipping velocity that would usually take years to accumulate, all compressed into a contract where your work directly shapes real products in the wild.

Employee Benefits

  • £400 per day contract rate
  • Outside IR35
  • Upskilling allowance
  • Access to best-in-class AI development tools
  • High-autonomy, low-ego engineering environment
  • London-based, with flexibility for the right contractor

Back End Developer in London employer: Prism Digital

Join a dynamic and innovative AI venture studio where you will play a pivotal role as a Founding Engineer, working closely with the CTO to shape core systems and make impactful architectural decisions. Enjoy a high-autonomy, low-ego work culture that fosters rapid personal and professional growth, while leveraging cutting-edge AI development tools in a flexible London-based environment. This is an exceptional opportunity to gain unparalleled exposure and ownership in a fast-paced setting, allowing you to see the direct results of your contributions from day one.
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Contact Detail:

Prism Digital Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Back End Developer in London

✨Tip Number 1

Network like a pro! Reach out to people in the industry, attend meetups, and connect with potential colleagues on LinkedIn. You never know who might have the inside scoop on job openings or can refer you directly.

✨Tip Number 2

Show off your skills! Create a portfolio showcasing your best projects, especially those that highlight your backend development expertise. Make sure to include any work with Python, FastAPI, or relevant frameworks to catch the eye of hiring managers.

✨Tip Number 3

Prepare for interviews by practising common technical questions and coding challenges. Use platforms like LeetCode or HackerRank to sharpen your skills. Remember, they want to see how you think and solve problems, so be ready to explain your thought process!

✨Tip Number 4

Apply through our website! We’re always on the lookout for talented individuals like you. By applying directly, you’ll get noticed faster and can showcase your enthusiasm for joining our innovative team.

We think you need these skills to ace Back End Developer in London

Python Development
FastAPI
API Design
Backend Architecture
PostgreSQL
MongoDB
AWS Serverless Infrastructure
Docker
B2C Product Experience
VC-Backed Startup Experience
Node.js Development
Data Privacy Awareness
Communication Skills
Problem-Solving Skills
Adaptability

Some tips for your application 🫡

Show Your Passion for Python: When you're writing your application, let your love for Python shine through! Share specific projects or experiences where you've used Python and FastAPI to create something impactful. We want to see your enthusiasm and how you can bring that energy to our team.

Highlight Your Ownership Mindset: We’re looking for someone who thrives in ambiguity and takes ownership of their work. In your application, give examples of times when you’ve made architectural decisions or led a project from start to finish. This will show us that you’re ready to step into a founding engineer role with confidence.

Tailor Your Application to Us: Make sure your application speaks directly to what we’re looking for. Use the job description as a guide and highlight your relevant experience in B2C businesses or VC-backed startups. The more you align your skills with our needs, the better your chances!

Apply Through Our Website: Don’t forget to apply through our website! It’s the best way for us to receive your application and ensures it gets into the right hands. Plus, it shows you’re serious about joining our team at StudySmarter!

How to prepare for a job interview at Prism Digital

✨Know Your Tech Stack

Make sure you’re well-versed in Python, FastAPI, and the other technologies mentioned in the job description. Brush up on your API design and backend architecture fundamentals, as you'll likely be asked to discuss these in detail.

✨Show Your Problem-Solving Skills

Prepare to demonstrate how you've tackled ambiguous problems in the past. Think of examples where you took ownership and made architectural decisions without a clear roadmap. This will show that you have the founder mentality they’re looking for.

✨Communicate Clearly

Practice articulating your thoughts clearly and concisely. Since this role involves working closely with the CTO, being able to communicate your ideas effectively is crucial. Consider doing mock interviews to refine your communication skills.

✨Understand the Business Context

Familiarise yourself with B2C businesses and the startup environment. Be ready to discuss how engineering can keep pace with rapid product scaling. Showing that you understand the business side will set you apart from other candidates.

Back End Developer in London
Prism Digital
Location: London
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  • Back End Developer in London

    London
    Full-Time
    32000 - 48000 £ / year (est.)
  • P

    Prism Digital

    50-100
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