At a Glance
- Tasks: Lead the development of AI-powered sales infrastructure and build innovative calling systems.
- Company: Throxy, a fast-growing London AI startup transforming sales for top companies.
- Benefits: Competitive salary, dynamic work environment, and opportunities for rapid career growth.
- Other info: Join a small, talented team in an AI-native environment focused on innovation.
- Why this job: Make a real impact with cutting-edge AI technology in a high-growth startup.
- Qualifications: Deep computer science background, expert in TypeScript and AWS, with AI development experience.
The predicted salary is between 80000 - 100000 £ per year.
throxy is a venture-backed London AI startup building vertical sales agents that automate prospecting, calling, and booking to deliver revenue outcomes for Fortune 500s and high-growth startups.
As a Staff Engineer at throxy, you will lead the development of our AI-powered sales infrastructure, moving beyond simple tools to deliver guaranteed revenue outcomes. You’ll own end-to-end projects—from custom scraping engines to autonomous calling systems—working alongside a senior, AI-augmented team to scale a business already seeing monthly growth.
Why this role is remarkable:
- Build outcome-oriented AI systems that directly drive revenue for global enterprises, ensuring your technical contributions have immediate, measurable business impact.
- Join a high-growth, venture-backed startup with proven product-market fit that is scaling rapidly month-over-month while maintaining a small, high-calibre engineering team.
- Work in an AI-native environment where tools like Cursor and Claude are fundamental to the workflow, allowing for rapid iteration and shipping within a 72-hour offer cycle.
What You Will Do:
- Architect and build a next-generation dialer infrastructure from scratch, integrating autonomous AI agents at the core of the calling experience.
- Develop an AI inbound SDR system capable of autonomously handling thousands of monthly callbacks to qualify leads and book meetings.
- Engineer sophisticated intelligence layers and custom prospecting engines that extract signals from calls to optimize targeting and lead generation logic.
The ideal candidate:
- Possesses a deep computer science background and is a full-stack generalist with expert-level proficiency in TypeScript and AWS environments.
- Demonstrates 1.5+ years of experience using AI development tools like Cursor or Claude and has built multiple end-to-end products from scratch.
- Exhibits a player-coach mentality, having previously led technical projects at high-calibre companies like Stripe, Revolut, or FAANG while remaining hands-on in execution.
Staff Engineer / Tech Lead at throxy in London employer: Jack & Jill
At Jack & Jill, we pride ourselves on being an exceptional employer that fosters a dynamic and innovative work culture. Our team enjoys a range of benefits including flexible working arrangements, professional development opportunities, and a collaborative environment that encourages creativity and growth. Located in a vibrant area, we offer unique advantages such as access to cutting-edge technology and the chance to work with industry leaders in AI-driven marketing strategies.
StudySmarter Expert Advice🤫
We think this is how you could land Staff Engineer / Tech Lead at throxy in London
✨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 Staff Engineer / Tech Lead at throxy in London
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.
