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- Tasks: Build innovative software that helps organisations navigate uncertainty using AI.
- Company: Exciting early-stage AI startup with a focus on impactful decision infrastructure.
- Benefits: Competitive salary, flexible work options, and opportunities for professional growth.
- Why this job: Make a real difference in AI technology while owning your projects end-to-end.
- Qualifications: Experience in software development with modern web technologies like React and Python.
- Other info: Join a dynamic team with experienced founders and excellent career advancement potential.
The predicted salary is between 36000 - 60000 £ per year.
Company Description: Early-stage AI decision infrastructure startup building software that helps organisations explore uncertainty using AI-powered synthetic audiences.
Job Description: Join a high-execution team building software that helps organizations explore uncertainty using AI-powered synthetic audiences. This role goes beyond typical SaaS CRUD development; you will design complex systems that make AI outputs trustworthy and actionable. You will own features end-to-end, making critical trade-offs between speed and long-term technical health.
Location: London, UK
Why this role is remarkable:
- Work on high-leverage decision infrastructure that goes far beyond simple AI wrappers or prompt engineering
- Massive ownership in a small, fast-paced team where your technical decisions will shape the platform for years
- Experienced, hands-on founders who value strong technical judgment and a bias toward execution and learning
What you will do:
- Build and ship production features using React, Next.js, Python, and FastAPI across the full stack
- Turn vague product problems into robust, working software that real users rely on for critical decisions
- Improve system performance and orchestration to ensure AI-driven outputs are reliable, scalable, and trustworthy
The ideal candidate:
- Significant experience shipping high-quality code in fast-moving, early-stage environments with high ambiguity
- Strong proficiency in modern web technologies including React, Python, and cloud infrastructure such as GCP
- A thinking-engineer mindset that balances pragmatism with deep care for system design and robustness
Next steps:
- Visit our website.
- Click 'Talk to Jack'.
- Talk to Jack so he can understand your experience and ambitions.
- Jack will make sure Jill (the AI agent working for the company) considers you for this role.
- If Jill thinks you’re a great fit and her client wants to meet you, they will make the introduction.
- 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.
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.
Product / Software Engineer employer: Jack & Jill
Contact Detail:
Jack & Jill Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Product / Software Engineer
✨Tip Number 1
Get to know Jack! He’s your go-to AI for understanding what you’re great at and what you want. Chat with him to make sure he highlights your skills when Jill is looking for candidates.
✨Tip Number 2
Be ready to showcase your experience with modern web technologies like React and Python. When you talk to Jack, mention specific projects where you’ve made a real impact—this will help him sell you to Jill!
✨Tip Number 3
Don’t shy away from discussing your problem-solving skills. The role involves turning vague product problems into solid software, so share examples of how you’ve tackled ambiguity in past projects.
✨Tip Number 4
Finally, keep an eye on our website for updates and new opportunities. We’re all about connecting you with the right roles, so make sure you’re in the loop!
We think you need these skills to ace Product / Software Engineer
Some tips for your application 🫡
Show Off Your Skills: When you're writing your application, make sure to highlight your experience with React, Python, and any cloud infrastructure you've worked with. We want to see how your skills align with the role, so don’t hold back!
Be Clear and Concise: Keep your application straightforward and to the point. We appreciate clarity, so avoid jargon and focus on what makes you a great fit for this high-execution team. Remember, less is often more!
Tailor Your Application: Make sure to customise your application for this specific role. Mention how your past experiences relate to building AI-powered software and tackling ambiguity. We love seeing candidates who take the time to connect their background to our needs.
Apply Through Our Website: Don’t forget to apply through our website! It’s the best way for us to get your application in front of Jill and ensure you’re considered for this exciting opportunity. Let’s get you started on this journey!
How to prepare for a job interview at Jack & Jill
✨Know Your Tech Stack
Make sure you’re well-versed in the technologies mentioned in the job description, like React, Python, and FastAPI. Brush up on your knowledge of these tools and be ready to discuss how you've used them in past projects.
✨Showcase Problem-Solving Skills
Prepare to talk about specific challenges you've faced in previous roles and how you turned vague problems into robust solutions. This is key for a role that involves designing complex systems.
✨Understand AI and Its Applications
Since the company focuses on AI-powered synthetic audiences, it’s crucial to demonstrate your understanding of AI concepts. Be ready to discuss how AI can be applied to decision-making processes and any relevant experience you have.
✨Emphasise Ownership and Execution
This role requires massive ownership, so come prepared with examples of how you've taken charge of projects from start to finish. Highlight your ability to make critical trade-offs between speed and long-term technical health.
