Software Engineer (Frontend) (£175k–£200k + Equity) at well-funded data infrastructure startup

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Software Engineer (Frontend)

Salary

£175k–£200k + Equity

Company Description

Well-funded data infrastructure startup

Job Description

As a senior frontend-leaning full-stack engineer, you will own the entire user experience for a mission-critical data orchestration platform. You will build complex DAG visualizations and cost observability tools using React and TypeScript, ensuring data teams can trust and monitor their AI workflows through a high-performance, power-user interface.

Location

London, UK

Why this role is remarkable

• Ship to production multiple times daily within a high-velocity, 10-person engineering team.
• Backed by top-tier VCs and prominent industry angels from major data tech leaders.
• Significant equity stake in a pre-seed company shaping the future of AI-native data workflows.

• Design and implement complex frontend features including DAG visualizations and lineage graphs.
• Partner directly with customers to prototype, iterate, and ship features without design bottlenecks.
• Contribute to the Python/FastAPI backend and AWS serverless infrastructure to support full-stack delivery.

• At least 5+ years of experience building and scaling production-grade web applications.
• Deep mastery of React and TypeScript with a strong eye for UI/UX craft and performance.
• Comfortable working as a generalist in a fast-paced environment with a customer-centric mindset.

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.

Next steps

Step 1. Visit the job listing.

Step 2. Click 'Talk to Jack', or go straight there: https://www.jackandjill.ai/jobs/software-engineer-frontend-175k-200k-equity-at-well-funded-data-infrastructure-s-710dea79-aa2c-4d34-9f90-f590f185ef90?utm_source=linkedin&utm_medium=job_post&utm_campaign=featured_role_710dea79-aa2c-4d34-9f90-f590f185ef90

Step 3. Talk to Jack so he can understand your experience and ambitions.

Step 4. Jack will make sure Jill (the AI agent working for the company) considers you for this role.

Step 5. If Jill thinks you're a great fit and her client wants to meet you, they will make the introduction.

Step 6. If not, Jack will find you excellent alternatives. All for free.

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.