Senior Frontend Engineer – AI Data Orchestration, Equity

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Jack & Jill is seeking a Senior Software Engineer (Frontend) to own the user experience for a crucial data orchestration platform in London. You will be responsible for building complex frontend features and collaborating with clients to ensure seamless functionality.

The role offers an attractive salary range of £175k–£200k along with equity in a starting company focused on shaping AI-native data workflows. Ideal candidates will have over 5 years of experience in web applications and proficiency in React and TypeScript.

#J-18808-Ljbffr”, “datePosted”: “2026-05-22”, “hiringOrganization”: { “@type”: “Organization”, “name”: “Jack & Jill”, “sameAs”: “https://uk.whatjobs.com/pub_api__cpl__439298862__4861?utm_campaign=publisher&utm_medium=api&utm_source=4861&geoID=33” }, “jobLocation”: { “@type”: “Place”, “address”: { “@type”: “PostalAddress”, “addressLocality”: “London” } } }
Company: Jack & Jill
Apply for the Senior Frontend Engineer – AI Data Orchestration, Equity
Location: London
Job Description:

Jack & Jill is seeking a Senior Software Engineer (Frontend) to own the user experience for a crucial data orchestration platform in London. You will be responsible for building complex frontend features and collaborating with clients to ensure seamless functionality.

The role offers an attractive salary range of £175k–£200k along with equity in a starting company focused on shaping AI-native data workflows. Ideal candidates will have over 5 years of experience in web applications and proficiency in React and TypeScript.

#J-18808-Ljbffr…

Posted: May 22nd, 2026