Senior Full Stack Engineer (£80k-£95k) at High-growth cybersecurity SaaS at Jack & Jill/External ATS

London, England, United Kingdom -

Full Time

Start Date

Immediate

Expiry Date

17 May, 26

Salary

95000.0

Posted On

16 Feb, 26

Experience

5 year(s) or above

Remote Job

Yes

Telecommute

Yes

Sponsor Visa

Skills

Typescript, React, Node.js, Aws, Ci/Cd, SaaS, Security, Architecture, Cloud-Native

Industry

Staffing and Recruiting

Description

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. Senior Full Stack Engineer Salary: £80k-£95k Company Description: High-growth cybersecurity SaaS Job Description: As a Senior Full Stack Engineer, you will drive the development of high-performance security products using TypeScript across the entire stack. You will build scalable features, optimize cloud infrastructure on AWS, and collaborate on complex architecture. This is a hands-on role focused on technical excellence and delivering robust solutions in a fast-paced environment. Location: London, UK Why this role is remarkable: Work at the forefront of the cybersecurity sector building mission-critical tools that protect global infrastructure. Join a well-funded startup backed by top-tier VCs with significant runway and a clear path to scale. Influence technical decisions and architecture within a high-calibre engineering culture that values innovation and speed. What you will do: Architect and implement end-to-end features using TypeScript, React, and Node.js. Manage and optimize cloud-native services within an AWS ecosystem to ensure high availability. Collaborate with product and design teams to translate complex security requirements into seamless user experiences. The ideal candidate: Deep expertise in TypeScript with professional experience building production-grade applications in React and Node.js. Proven track record working with AWS services and modern CI/CD pipelines in a cloud-first environment. Strong problem-solving skills and the ability to own technical projects from initial concept through to deployment. 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.

Responsibilities

The Senior Full Stack Engineer will drive the development of high-performance security products using TypeScript across the entire stack, architecting and implementing end-to-end features using TypeScript, React, and Node.js. Responsibilities also include optimizing cloud infrastructure on AWS and collaborating on complex architecture.