At a Glance
- Tasks: Build AI agents for sales pipelines and develop core systems that drive revenue.
- Company: YC-backed AI-native platform with $6.2M funding, focused on innovation.
- Benefits: Competitive salary, equity options, and a chance to shape the future of AI.
- Other info: Dynamic startup environment with significant career growth potential.
- Why this job: Join a small team where your code directly impacts growth and innovation.
- Qualifications: 3-6+ years in fullstack development with TypeScript, React, and Next.js.
The predicted salary is between 75000 - 110000 £ per year.
A YC-backed AI-native revenue platform with $6.2M seed funding.
You will build autonomous AI agents that handle the work of outbound sales pipelines, moving beyond simple tools to deliver end-to-end results. As one of the first engineers at this post-seed startup, you will design and ship foundational systems including dialer infrastructure and automated prospecting engines that drive revenue for Fortune 500 customers.
Location: London, UK
Why this role is remarkable:
- Join a tiny, high-leverage team of three senior engineers where every line of code directly impacts month-over-month revenue growth and scales the core product.
- Work at the frontier of AI application, building a service where better models compound your work by making the platform faster and harder to compete with.
- Backed by YC S25 and top-tier investors with $6.2M in funding, offering the stability of product-market fit with the high-upside energy of a founding-stage company.
What You Will Do:
- Rebuild core dialer infrastructure from scratch, placing AI agents at the center of the communication loop to handle autonomous interactions.
- Develop AI Inbound SDR systems capable of autonomously converting thousands of monthly callbacks into qualified meetings for global enterprise clients.
- Architect intelligence layers that generate post-call insights and prospecting engines using custom scraping and AI qualification pipelines to find leads.
The ideal candidate:
- Has 3-6+ years of professional fullstack experience, specifically with TypeScript, React, and Next.js, and a computer science degree from a top-tier university.
- Demonstrates a history of shipping end-to-end systems at high-calibre tech companies like Stripe, Revolut, or FAANG, or within high-growth startup environments.
- Possesses builder instincts with experience in AI/LLM implementations such as RAG systems or autonomous agents, and is comfortable owning features from scope to deployment.
Fullstack AI Engineer - Equity & Growth (London) employer: Jack & Jill
Join a dynamic and innovative YC-backed AI-native revenue platform in London, where you will be part of a small, high-impact team that directly influences the company's growth trajectory. With competitive salaries, equity options, and the opportunity to work at the cutting edge of AI technology, this role offers not just a job but a chance to shape the future of sales automation. The collaborative work culture fosters creativity and personal development, making it an ideal environment for ambitious engineers looking to make a meaningful impact.
StudySmarter Expert Advice🤫
We think this is how you could land Fullstack AI Engineer - Equity & Growth (London)
✨Tip Number 1
Network like a pro! Reach out to folks in the industry, especially those who work at startups or in AI. Use platforms like LinkedIn to connect and engage with them. You never know who might have a lead on that perfect Fullstack AI Engineer role!
✨Tip Number 2
Show off your skills! Create a portfolio showcasing your projects, especially those involving TypeScript, React, and AI implementations. This is your chance to demonstrate your builder instincts and how you’ve shipped end-to-end systems.
✨Tip Number 3
Prepare for interviews by brushing up on your technical skills and understanding the latest trends in AI. Be ready to discuss your experience with autonomous agents and how you can contribute to rebuilding core dialer infrastructure.
✨Tip Number 4
Don’t forget to apply through our website! We’re always on the lookout for talented engineers who are eager to make an impact. Your next big opportunity could be just a click away!
We think you need these skills to ace Fullstack AI Engineer - Equity & Growth (London)
Some tips for your application 🫡
Show Off Your Skills:Make sure to highlight your fullstack experience, especially with TypeScript, React, and Next.js. We want to see how your skills align with what we’re building, so don’t hold back on showcasing your past projects!
Tailor Your Application:Customise your application to reflect our job description. Mention your experience with AI/LLM implementations and how you've shipped end-to-end systems. This helps us see that you’re not just a fit for the role, but also for our team culture.
Be Authentic:Let your personality shine through in your application. We’re a small team, and we value authenticity. Share your passion for AI and how you envision contributing to our mission at StudySmarter.
Apply Through Our Website:We encourage you to apply directly through our website. It’s the best way for us to receive your application and ensures you don’t miss out on any important updates from our team!
How to prepare for a job interview at Jack & Jill
✨Know Your Tech Stack
Make sure you’re well-versed in TypeScript, React, and Next.js. Brush up on your fullstack experience and be ready to discuss specific projects where you've used these technologies. Highlight any relevant AI/LLM implementations you've worked on, as this will show your fit for the role.
✨Showcase Your Problem-Solving Skills
Prepare to discuss how you've tackled complex challenges in previous roles. Think about specific examples where you’ve built end-to-end systems or improved existing processes. This is your chance to demonstrate your builder instincts and how you can contribute to the team’s success.
✨Understand the Company’s Vision
Research the company’s mission and recent developments, especially their focus on AI-driven solutions. Be ready to articulate how your skills align with their goals and how you can help drive revenue growth. Showing genuine interest in their vision will set you apart from other candidates.
✨Prepare Questions That Matter
Think of insightful questions to ask during the interview. Inquire about the team dynamics, the challenges they face, or how they measure success in this role. This not only shows your enthusiasm but also helps you gauge if the company is the right fit for you.
