Jack & Jill
Lead JavaScript Engineer - Encore at Mixcloud
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Job Title
Lead JavaScript Engineer - Encore
Salary
Not Disclosed
Company Description
Mixcloud is a music technology platform that recently acquired Encore Musicians, a leading marketplace for live performers that has processed over £27M in artist bookings. Together, they are solving meaningful challenges in the music industry, making live performances accessible globally while enabling musicians to build sustainable careers through intuitive digital experiences.
Job Description
As one of only two engineers at Encore, you will own the entire technical landscape across web, mobile, and infrastructure. You will lead high-impact projects like the USA launch and platform rebrand while mentoring a senior developer. This is a rare chance to shape a revenue-generating marketplace within the Mixcloud ecosystem.
Location
London, UK
Why this role is remarkable
- True technical ownership: You will be one of only two developers responsible for the entire platform, making critical decisions regarding tech stack, architecture, and technical strategy.
- High-growth momentum: Join following the 2024 acquisition by Mixcloud to lead a major US expansion and platform rebrand for a marketplace that has already helped artists earn £27m+.
- Direct cultural impact: Work on a product that brings live music to life's biggest moments, supported by a passionate team of musicians and DJs in a high-autonomy environment.
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What You Will Do
- Lead the full-stack development of the Encore platform, including the customer-facing web app, React Native mobile app, and Node.js backend services.
- Architect the technical expansion into the US market, building high-performance SEO landing pages and integrating payment solutions like Stripe for international users.
- Provide pastoral mentorship to another engineer while refining strategic technical projects, such as stack modernization and migrating legacy infrastructure to Railway and GCP.
The ideal candidate
- Lead-level experience in a production environment with deep proficiency across the TypeScript/JavaScript stack, specifically with React, Node.js, and Express.
- Proven ability to move fluidly between frontend product work and infrastructure/DevOps tasks using modern tools like Railway, Playwright, and cloud configurations.
- A product-first mindset with experience in two-sided marketplaces, capable of ruthlessly prioritizing technical tasks against commercial impact and identifying bottlenecks in the user journey.
Who are Jack & Jill?
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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.
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.
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