At a Glance
- Tasks: Build and scale AI hiring agents for major brands, impacting millions of applicants.
- Company: Leading enterprise candidate engagement platform with a dynamic team.
- Benefits: Competitive salary, equity options, and the chance to work on groundbreaking technology.
- Other info: Fast-paced environment with opportunities for rapid career growth.
- Why this job: Join a founding team and make a real impact in the AI hiring space.
- Qualifications: Experience with AI agents, full-stack skills in TypeScript and React.
The predicted salary is between 100000 - 120000 £ per year.
Leading enterprise candidate engagement platform with millions of users and a newly closed institutional funding round.
Location: London, UK
You will join a newly formed agents pod to build and scale autonomous hiring infrastructure for enterprise giants like Boots and the NHS. You will own the Talent Agent Engine, moving beyond simple chatbots to create stateful agents that source, score, and interview candidates within a high-stakes, high-compliance production environment.
Why this role is remarkable:
- Ship to millions: Your code will power hiring agents for massive brands like Boots, Compass Group, and the NHS, impacting millions of applicants.
- High‑stakes AI: Move beyond POCs to build production‑ready agents where accuracy and compliance are critical, not just 'demo magic.'
- Founding team energy: Join as one of the first engineers in a dedicated agents pod alongside a technical PM and founding marketer.
What You Will Do:
- Build and optimize the Talent Agent Engine, managing intent classification, tool orchestration, and validation harnesses for foundation model calls.
- Scale production agents like the Interview and Scoring Agents, ensuring they operate reliably under a domain‑specific stateful harness.
- Develop the Studio control plane and evaluation pipelines to bridge the gap between model prototypes and enterprise‑grade production reality.
The Ideal Candidate:
- Proven experience shipping real‑world AI agents to production using the Vercel AI SDK or stateful primitives like Cloudflare Durable Objects.
- Deep full‑stack proficiency with TypeScript, React, and serverless compute, with a strong obsession for evals and performance metrics.
- A bias for action who prefers shipping high‑quality iterations quickly over long‑term theoretical development cycles in a greenfield environment.
Product Engineer (£100k-£120k + Equity) at enterprise-scale AI hiring platform employer: Jack & Jill
As a leading enterprise candidate engagement platform based in London, we offer an exceptional work environment that fosters innovation and collaboration. Our team is dedicated to building cutting-edge AI solutions that impact millions of users, providing employees with unique opportunities for growth and the chance to work alongside industry pioneers. With competitive salaries, equity options, and a culture that values creativity and agility, we are committed to empowering our engineers to make a meaningful difference in the hiring landscape.
StudySmarter Expert Advice🤫
We think this is how you could land Product Engineer (£100k-£120k + Equity) at enterprise-scale AI hiring platform
✨Join Local Tech Meetups
Get out there and mingle with fellow developers by joining local tech meetups. It’s a fantastic way to meet people who might be working at Jack & Jill or know someone who does. Plus, you can pick up some trendy tech skills and trends while you're at it!
✨Contribute to Open Source Projects
Show off your coding chops by jumping into open-source projects. Not only does this give you practical experience, but it also gets you noticed in the dev community. You'll create a killer portfolio that speaks volumes about your skills to Jack & Jill.
✨Tap into Online Developer Communities
Don’t underestimate the power of online developer communities like GitHub, Stack Overflow, and even Reddit. Participate in discussions, share your projects, and build your visibility. We can often find opportunities through these channels that can lead to a full-time gig at companies like Jack & Jill.
✨Explore Job Boards Specifically for Tech Roles
Keep your eyes peeled on job boards that focus on tech roles. Sites like TechCareers or Stack Overflow Jobs can often have listings for companies like Jack & Jill that might not show up on broader job sites. Make it a habit to check these regularly, and don’t hesitate to apply directly through our website!
We think you need these skills to ace Product Engineer (£100k-£120k + Equity) at enterprise-scale AI hiring platform
Some tips for your application 🫡
Show off your coding skills:When applying for a software engineering role, it's super important to showcase your coding skills. Make sure your CV includes your tech stack, any relevant programming languages you’re comfortable with, and examples of projects you've worked on. If you have a GitHub profile, link it up! We love to see code in action.
Tailor your portfolio:For a full-time role, we’d expect to see some solid examples of your work in your portfolio. Make sure to include at least two or three projects that highlight your problem-solving skills and your ability to work with different technologies. Focus on the projects that are most relevant to the position at Jack & Jill.
Craft a killer cover letter:Your cover letter is your chance to stand out—make it personal! Explain why you want to work at Jack & Jill and how your skills align with the role. Show us your passion for software development. We dig enthusiastic candidates who understand the value of collaboration and continuous learning!
Be clear and concise:When it comes to writing your CV and cover letter, clarity is key. Avoid jargon that could confuse us and stick to simple, direct language. Highlight your achievements with quantifiable results where possible, and keep everything easy to read. A well-organised application goes a long way!
How to prepare for a job interview at Jack & Jill
✨Brush Up on Your Coding Skills
For a full-time software engineering role, it's crucial that we stay sharp with our coding abilities. Expect technical questions that might involve solving problems on the spot or discussing algorithms. Practise on platforms like LeetCode or HackerRank to get comfortable with the types of questions that often come up.
✨Know Your Tools and Frameworks
Make sure we’re well-acquainted with the tools and technologies listed in the job description. Familiarise ourselves with any specific frameworks or programming languages mentioned. If Jack & Jill uses React or Node.js, for instance, be ready to discuss how we’ve used them in previous projects or coursework.
✨Showcase Your Projects
Bring along a portfolio that highlights our best work. This could be code samples, GitHub repositories, or any side projects we’ve built. Make sure we can talk through our thought process for each project, especially the challenges we faced and how we solved them—this shows our problem-solving skills in action.
✨Prepare for Behavioural Questions
While technical skills are key, full-time positions also require cultural fit. Be ready to discuss our previous experiences and how we handle teamwork, conflict, and deadlines. Brush up on the STAR method—Situation, Task, Action, Result—to clearly articulate our past experiences when discussing how we've contributed to a team.
