Full Stack Engineer at Mission-driven safety tech startup

This is a job that Jill, our AI Recruiter, is recruiting for on behalf of one of our customers. She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Full Stack Engineer

Company Description: Mission-driven safety tech startup

Job Description:
You will lead the development of a world-first safe mobile platform, replacing traditional telecommunications with intelligent safeguarding software. Working directly with the CTO, you will build and scale web and mobile applications that protect millions from digital harm using AI-driven detection and device-level controls across a modern TypeScript-based stack.

Location: London, UK

Why this role is remarkable:

• Work on technology that directly protects vulnerable individuals and children from digital harm at a global scale.

• Join a well-funded company backed by top-tier global investors with strong market traction and revenue.

• Collaborate with a world-class engineering team composed of alumni from leading global tech and safety organizations.

What you will do:

• Develop and maintain a full-stack platform including real-time web apps, mobile apps, and backend services.

• Design and implement frontend experiences across web and mobile using React and Kotlin Multiplatform.

• Build and optimize backend services using Hono, Postgres, and AWS to power high-scale network controls.

The ideal candidate:

• Extensive experience as a senior engineer or technical lead building quality products in lean, fast-moving teams.

• Strong proficiency across the stack, particularly with TypeScript, React, and modern backend architectures.

• Driven by real-world impact and the craft of shipping clean, reliable architecture for complex social challenges.

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.

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 our website.
Step 2. Click 'Talk to Jack'.
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.