Product Engineer / Member of Technical Staff in London

Product Engineer / Member of Technical Staff in London

London Full-Time 110000 - 150000 € / year (est.) No home office possible
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At a Glance

  • Tasks: Join a dynamic team to reinvent financial infrastructure with innovative tech solutions.
  • Company: Exciting YC-backed fintech startup in a unique converted church office.
  • Benefits: Competitive salary, equity reviews every quarter, and a vibrant team culture.
  • Other info: Collaborative environment with opportunities for rapid career growth.
  • Why this job: Make a real impact in the fintech space while working with cutting-edge technologies.
  • Qualifications: Experience in software engineering, especially with Go, TypeScript, or Python.

The predicted salary is between 110000 - 150000 € per year.

Overview: Wave are working with a business that launched 18 months ago, reached double-digit million ARR and are hiring two more engineers.

About the company:

  • Salary: £110-150k base, with quarterly salary and equity reviews trending toward £180k inside 6-9 months
  • Equity: Generous, reviewed every three months
  • Location: Spitalfields, London (5 days onsite)
  • Company: Series A, YC-backed fintech rebuilding the operating system for UK financial advice
  • Team: 6 engineers, hiring 2 more
  • Funding: $15M Series A, cashflow positive
  • Revenue: Double-digit million ARR in under 18 months

They’re building something different. A company with taste, intensity, originality, and deep care for the industry they serve. Their new HQ is a converted 150-year-old church in Spitalfields. They don’t want to build a normal company in a normal office with normal ambition. They’re the AI-powered operating system for financial advice. They automate the back office so advisers can spend more time being human.

The problem is simple. Only 8% of the UK gets financial advice, but around 50% want it. Advisers spend most of their time on admin. They’re closing that gap. The mission is to reinvent financial infrastructure so wealth and advice services can scale to one billion people. Financial peace of mind should be a right, not a privilege.

YC-backed, $15M Series A, cashflow positive, used by 20%+ of UK advice firms, and already at double-digit million ARR in under 18 months. The crazy part: they’ve done this with a tiny engineering team. The founding engineers came from Cred, Postman, Gojek, and Slice. Now they’re hiring two more.

How they work:

  • Move with direction, urgency and discipline
  • Make complexity feel simple
  • Build with bank-grade trust
  • Stay close to the domain and the user
  • Think clearly, write it down and share context
  • Own outcomes and raise the bar together
  • Stay obsessive

What’s in it for you?

  • Tight, in-person team. Six engineers today, eight after these hires, building together every day with no plans to scale much beyond that.
  • One of London’s most distinctive offices. A converted 150-year-old church in Spitalfields. Five days a week, in person, plus rare invite-only events hosted at notable academics’ homes.
  • Quarterly salary and equity reviews. The CEO has taken people from £80k to £180k inside a year where the slope has justified it.
  • Polyglot engineers wanted. Go, TypeScript or Python. Deep LLM and RAG integration in user-facing features.
  • Direct line to a founder-led commercial engine reinventing financial infrastructure.

About the roles:

They’re hiring top engineers who want to build with taste, speed and care. Two seats, same team, distinct flavours. Both roles share the foundation. Stack is Go, TypeScript and Python with LLMs and RAG integrated throughout.

You will work directly with Product, Design, and embedded chartered compliance officers and paraplanners. This is not a ticket-processing role. The team is intentionally moving away from rigid front-end, back-end, and QA silos. Manual QA is being deliberately replaced with automated testing. Live projects include real-time meeting capture and transcription pipelines, letter of authority orchestration, pension transfer review automation, and an FCA Consumer Duty compliance policy engine.

Member of Technical Staff (platform-leaning): You care about scalability, reliability, and the engine room. You will own systems end-to-end and own the foundations the rest of the product relies on. Stronger back-end or platform depth, with full-stack breadth.

Product Engineer (speed-leaning): You care about velocity and shipping. You will sit close to the GTM team, pull pain points out of recent customer calls and build against them. Stronger product instincts, faster iteration cycle, more UI surface area.

Must-haves (both roles):

  • Senior product engineer or staff-level engineer with strong full-stack capability. Open to slightly more junior candidates if the trajectory is clearly there to reach staff inside three months.
  • Background in startups or scale-ups.
  • Comfort working from customer pain points rather than tickets.
  • Hands-on LLM or AI integration experience in user-facing features.
  • Genuinely keen to work five days onsite in London.

Role-specific:

  • MTS: stronger back-end or platform foundations, systems thinking.
  • Product Engineer: stronger product instincts, track record of owning features end-to-end.

Bonus points:

  • AWS familiarity. No GCP or Azure planned.
  • Platform competence alongside back-end.
  • Fintech, regulated industries, or compliance-heavy workflow experience.
  • Founding or early-stage hire at a high-growth startup.

If reinventing financial infrastructure sounds like your kind of thing, message me. Let me know which seat.

Product Engineer / Member of Technical Staff in London employer: Wave Group

Join a pioneering fintech company in Spitalfields, London, where innovation meets purpose. With a unique office in a converted 150-year-old church, you'll be part of a tight-knit team of engineers dedicated to reinventing financial infrastructure. Enjoy generous quarterly salary and equity reviews, alongside opportunities for personal growth and direct impact on a mission that aims to make financial advice accessible to all.

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Contact Detail:

Wave Group Recruiting Team

StudySmarter Expert Advice🤫

We think this is how you could land Product Engineer / Member of Technical Staff in London

Tip Number 1

Network like a pro! Reach out to people in the fintech space, especially those who work at companies similar to the one you're eyeing. A friendly chat can lead to insider info and maybe even a referral!

Tip Number 2

Show off your skills! If you’ve got a portfolio or side projects, make sure to highlight them during interviews. It’s a great way to demonstrate your hands-on experience and passion for product engineering.

Tip Number 3

Prepare for technical interviews by brushing up on relevant technologies like Go, TypeScript, and Python. Practice coding challenges and system design questions to show you’re ready to tackle real-world problems.

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, we love seeing candidates who are proactive about their job search!

We think you need these skills to ace Product Engineer / Member of Technical Staff in London

Full-Stack Development
Go
TypeScript
Python
LLM Integration
RAG Integration
Systems Thinking

Some tips for your application 🫡

Be Yourself:When you're writing your application, let your personality shine through! We want to see the real you, so don’t be afraid to show your passion for fintech and how you can contribute to our mission.

Tailor Your Application:Make sure to customise your application for the role you're applying for. Highlight your relevant experience and skills that align with what we're looking for in a Product Engineer or Member of Technical Staff.

Showcase Your Projects:If you've worked on any cool projects, especially those involving AI or LLMs, make sure to mention them! We love seeing practical examples of your work and how you’ve tackled challenges in the past.

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’re considered for the role you’re excited about!

How to prepare for a job interview at Wave Group

Know Your Tech Stack

Make sure you’re well-versed in Go, TypeScript, and Python. Brush up on your experience with LLMs and RAG integration, as these are crucial for the roles. Be ready to discuss specific projects where you've used these technologies.

Understand the Company’s Mission

Wave is all about reinventing financial infrastructure. Familiarise yourself with their goals and how they aim to close the gap in financial advice. Show genuine enthusiasm for their mission and be prepared to share how your skills can contribute to it.

Prepare for Real-World Scenarios

Expect questions that focus on problem-solving and real-world applications. Think of examples from your past work where you’ve tackled customer pain points or improved processes. This will demonstrate your ability to think critically and act swiftly.

Show Your Team Spirit

With a tight-knit team of engineers, it’s important to convey your collaborative spirit. Share experiences where you’ve worked closely with product and design teams, and highlight your ability to communicate effectively and own outcomes together.