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Jack & Jill

Senior Product Engineer (£80,000 - £100,000 + Equity) at Userled

London
£80k – £100k/yr
Posted about 21 hours ago
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Job Title

Senior Product Engineer

Salary

£80,000 - £100,000 + Equity

Company Description

Userled.io is an early-stage London startup building a Generative Marketing platform that revolutionizes how B2B teams engage buyers through hyper-personalized campaigns. Operating from a Shoreditch tech hub, Userled.io enables businesses to navigate a cookie-less future by deploying swift, high-impact engagement strategies that drive capital-efficient growth at scale.

Job Description

As a Senior Product Engineer, you will join a core team with a culture of total ownership, making technical and strategic roadmap decisions without PMs. You will design scalable architectures using Golang and TypeScript, building world-class user experiences on AWS. Your work will directly enable customers to deploy sophisticated, automated marketing strategies.

Location

London, UK

Why this role is remarkable

  • Work in a high-autonomy environment where engineers act as product owners, making all first-principles decisions on feature planning, technical debt, and architectural direction.
  • Join an early-stage tech company on a rapid trajectory, tackling the massive shift toward Generative Marketing as third-party cookies are deprecated by major browsers.
  • Enjoy a premium employee experience including a Shoreditch office with a private gym, annual team off-sites to locations like Corfu, and high-spec Apple hardware.

Reasons to use Rodeo

I’m in my final year doing Economics and I don’t know whether to apply for grad schemes now or do a masters first. What do you think?

Honest answer — it depends on where you want to end up. A lot of top grad schemes (Big 4, civil service, banking) don’t need a masters. Let’s look at the ones you’d be competitive for now, and we can decide if a masters actually adds anything.

Also worth knowing: most autumn 2026 applications are open now. Timing matters more than you think.

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Grad scheme, placement, apprenticeship? Not sure what you want yet — that's fine. Your agent talks it through with you and turns "I have no idea" into a shortlist.

P

Graduate Consultant — 2026 Scheme

PwC·London, UK
£35,000/yr

Why you're a good match

Strong

Your economics background and your summer at a regional bank line up with what PwC looks for on the consulting scheme. Applications close in four weeks.

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It searches the market for you

Every day your agent scans the market matching roles against what actually matters to you, not just keywords on a CV.

Why you're a good match

You’ve got the grades and the economics background, and your bank internship is exactly the experience this scheme looks for. Apply soon — deadlines close within the month.

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Strong

Experience fit

Your summer at the bank plus your econometrics coursework map directly to the day-one responsibilities on this scheme — client modelling, market briefings, and deal support.

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Strong

Only hits

No noise. No "maybe this fits." Just roles with a clear explanation of why they're right — and where to focus when applying.

What You Will Do

  • Take full ownership of key product areas, contributing across the entire stack in Golang, TypeScript, and React to deliver beautifully crafted, world-class features.
  • Design and implement highly concurrent backend architectures and robust REST API contracts to support rapid scaling for both internal and public consumers.
  • Collaborate directly with customers to identify pain points and lead the architectural design of new features that solve complex B2B growth challenges.

The ideal candidate

  • Has extensive experience designing secure, message-driven backend systems and highly concurrent architectures using modern cloud infrastructure like AWS or GCP.
  • Demonstrates full-stack proficiency, particularly with Golang and TypeScript, and possesses a strong natural appreciation for what makes a high-quality product look and feel right.
  • Exhibits excellent communication skills, including the ability to write long-form technical documentation and represent engineering values both internally and to the wider community.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

Get help with your application

Your very own career expert that helps elevate your application to the next level.

Get help applying for this job

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

  • Jack's an AI agent for job searching and career coaching. He works for you.
  • Jill is the AI recruiter working for the company. She recruits from Jack's network.
  • If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.

Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.

We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

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“It took my CV and asked me questions relevant to understanding what kind of jobs to suggest for me. Suggestions were almost perfect. Jobs were exactly what I’ve been looking for.”

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Skills

Golang
TypeScript
React
AWS
Cloud Infrastructure
Backend Systems
REST API
Technical Documentation
Communication Skills
Product Ownership
Architectural Design
B2B Growth
Scalable Architectures
Concurrent Architectures
User Experience
Automated Marketing

Location

London, England, United Kingdom

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