At a Glance
- Tasks: Own and solve complex problems, design AI systems, and mentor fellow engineers.
- Company: Throxy, a cutting-edge research lab in London focused on the future of sales.
- Benefits: Real ownership, fast-paced environment, and the chance to make a significant impact.
- Other info: Fast shipping culture; design on Monday, production by Friday!
- Why this job: Join a small, talented team and shape the future of AI-driven sales solutions.
- Qualifications: 6+ years in software engineering, expertise in TypeScript, and strong problem-solving skills.
The predicted salary is between 80000 - 100000 € per year.
About Throxy
Throxy is a small applied research lab working on the future of sales. We are a group of researchers, engineers, and technologists in London inventing at the edge of what's useful and possible. At Throxy, we are building agents that generate sales pipeline for our customers. If you're interested in the types of problems we're working on, we'd love to hear from you. We're a small, talent dense team moving extremely fast. Our engineers ship to production daily, talk directly to customers, and own problems end‑to‑end.
Role
As a Staff Engineer, you'll be one of the most senior ICs on the team. You won't be handed tickets, you'll be handed problem spaces and trusted to figure out the right thing to build, then build it. You'll set technical direction across multiple product surfaces, make the architectural calls that the next 50 engineers will live with, and stay hands‑on in the code while doing it. This is a player‑coach role. ~70% IC, ~30% leverage (design docs, reviews, mentoring, unblocking).
What You'll Do
- Own ambiguous, cross‑cutting problems end‑to‑end — from 'this is slow / broken / missing' to shipped and measured.
- Design the systems behind our AI agents, LLM evaluations, data pipelines, and provider waterfalls.
- Set technical standards for the codebase.
- Mentor senior and mid‑level engineers; raise the bar through code review and design review.
- Partner directly with the founders and Head of Engineering on roadmap and technical strategy.
- Talk to customers, watch them use the product, and turn that into shipped improvements within days.
What We're Looking For
- 6+ years of production software engineering experience (or equivalent scope) at a high‑velocity company.
- Deep expertise in TypeScript and modern web infra, we run Next.js (App Router), Trigger.dev, Postgres/Drizzle.
- Strong systems thinking: you've designed distributed systems, data pipelines, or large‑scale background job infrastructure that actually held up.
- Comfort with LLM‑based systems, prompt design, evaluations, agentic workflows, structured outputs. You don't need to have built foundation models, but you've shipped real LLM features and know where they break.
- Track record of going from zero → one on ambiguous problems without a PM holding your hand.
- Strong written communication, you can write a design doc that aligns a room.
- Bias to action. You'd rather ship a working v1 today than a perfect v1 next month.
Why Throxy
- Real ownership, small team, big surface area, your fingerprints will be everywhere.
- Senior bar, everyone you work with will sharpen you.
- AI‑native from day one, we're not retrofitting AI onto a legacy product.
- Speed, design doc on Monday, in production by Friday, in front of customers by next week.
Staff Engineer in London employer: throxy (yc p25)
Throxy is an exceptional employer for those seeking to make a significant impact in the tech industry. With a small, highly skilled team based in London, employees enjoy real ownership of their work, rapid deployment of innovative solutions, and direct collaboration with founders. The culture fosters continuous learning and mentorship, ensuring that every engineer is challenged and supported in their professional growth while working on cutting-edge AI technologies.
StudySmarter Expert Advice🤫
We think this is how you could land Staff Engineer in London
✨Tip Number 1
Network like a pro! Reach out to current employees at Throxy on LinkedIn or other platforms. Ask them about their experiences and the company culture. This not only shows your interest but can also give you insider info that might help you stand out in interviews.
✨Tip Number 2
Prepare for hands-on problem-solving! Since you'll be tackling ambiguous problems, practice articulating your thought process. Use examples from your past work where you identified issues and delivered solutions. This will show Throxy that you're ready to take ownership.
✨Tip Number 3
Show off your technical chops! Be ready to discuss your experience with TypeScript, distributed systems, and LLM features. Bring along any relevant projects or code samples to demonstrate your skills. This is your chance to shine!
✨Tip Number 4
Don’t forget to apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, it shows you’re serious about joining the Throxy team. Let’s get you in the door!
We think you need these skills to ace Staff Engineer in London
Some tips for your application 🫡
Show Your Passion:When you're writing your application, let your enthusiasm for the role and our mission shine through. We want to see that you’re genuinely excited about tackling the challenges we face at Throxy and how your skills can contribute to our innovative projects.
Tailor Your Experience:Make sure to highlight your relevant experience in software engineering, especially with TypeScript and modern web infrastructure. We love seeing how your past projects align with the problems we’re solving, so don’t hold back on those details!
Be Clear and Concise:We appreciate strong written communication, so keep your application clear and to the point. Use straightforward language to explain your thought process and how you've tackled ambiguous problems in the past. This will help us understand your approach and mindset.
Apply Through Our Website:Don’t forget to submit your application through our website! It’s the best way for us to receive your details and ensures you’re considered for the role. Plus, it shows you’re keen on joining our team at Throxy!
How to prepare for a job interview at throxy (yc p25)
✨Understand the Company and Its Vision
Before your interview, dive deep into Throxy's mission and the problems they're tackling. Familiarise yourself with their approach to sales and how they leverage technology. This will not only help you answer questions more effectively but also show your genuine interest in their work.
✨Showcase Your Problem-Solving Skills
Since the role involves owning ambiguous problems, prepare examples from your past experience where you've tackled complex issues without much guidance. Be ready to discuss your thought process and the impact of your solutions, as this aligns perfectly with what Throxy is looking for.
✨Demonstrate Technical Expertise
Brush up on your TypeScript and modern web infrastructure knowledge, especially around Next.js and data pipelines. Be prepared to discuss specific projects where you've designed or improved systems, as well as any experience with LLM-based systems. This will highlight your fit for the technical direction they need.
✨Communicate Clearly and Effectively
Strong written communication is key for this role. Practice articulating your ideas clearly, whether it's discussing a design document or explaining a technical concept. Being able to convey complex information simply will impress the interviewers and demonstrate your ability to align teams.
