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459 Available Jobs for "javascript developer"

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Client Server

Application Security Engineer JavaScript

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Application Security Engineer (JavaScript / TypeScript Web) London / Remote to 80kDo you have expertise with application security combined with strong JavaScript / TypeScript...

The BoroughWork From Home

RedCat Digital

Tech Lead (Python, JavaScript)

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About the roleI am looking for a talented and experienced Full-stack Tech Lead to join an exciting data-driven technical consultancy, who are harnessing the power of data to help...

The BoroughAny

RedCat Digital

Tech Lead (Python, JavaScript)

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About the roleI am looking for a talented and experienced Full-stack Tech Lead to join an exciting data-driven technical consultancy, who are harnessing the power of data to help...

WhitehallAny

Client Server

Web Security Engineer JavaScript

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Web Security Engineer (JavaScript / TypeScript) London / Remote to 80kDo you have expertise with web security combined with strong JavaScript / TypeScript coding skills?You could...

The BoroughWork From Home

Quant Capital

Full Stack Javascript Software Engineer

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Challenge: Greenfield Trading platform, API development, industry specific challenges Firm: Well-known Fintech Trading Platform Vendor, Surbiton, 30 man flat global Dev Team Pay:...

WhitehallAny

Quant Capital

Full Stack Javascript Software Engineer

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Challenge: Greenfield Trading platform, API development, industry specific challenges Firm: Well-known Fintech Trading Platform Vendor, Surbiton, 30 man flat global Dev Team Pay:...

The BoroughAny

Jobleads-UK

Senior Software Engineer, JavaScript/TypeScript

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React work that powers markets rather than another customer-facing product. You'll build the web and desktop applications traders and market operators use to run, monitor and...

Greater LondonAny

Elsevier

Senior Software Engineer I (JavaScript))

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                                     Senior Software Engineer I (JavaScript)  Ready to build intelligent, high‑impact applications that push the boundaries of modern JavaScript...

The BoroughAny

Quant Capital

Team Lead Ruby / Frontend Developer

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Team Lead Ruby / Frontend DeveloperQuant Capital is urgently looking for a Lead Frontend Ruby or JavaScript Developer to join our high profile client.Our client is a brand new...

The BoroughAny

Quant Capital

Team Lead Ruby / Frontend Developer

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Team Lead Ruby / Frontend DeveloperQuant Capital is urgently looking for a Lead Frontend Ruby or JavaScript Developer to join our high profile client.Our client is a brand new...

WhitehallAny

Jobleads-UK

Backend Engineer - JavaScript & AWS

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Motorway is seeking a Backend Engineer to help build and scale our JavaScript stack. You will develop and maintain features, work with Node.js, Express, Sequelize, and our AWS...

Greater LondonAny

Quant Capital

Junior Full Stack Javascript Software Engineer

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Tech: Javascript, TypeScript, MongoDB, Angular, HTML5, CSS, BootstrapChallenge: Greenfield Trading platform, API development, industry specific challengesFirm: Well-known Fintech...

WhitehallAny

Quant Capital

Junior Full Stack Javascript Software Engineer

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Tech: Javascript, TypeScript, MongoDB, Angular, HTML5, CSS, BootstrapChallenge: Greenfield Trading platform, API development, industry specific challengesFirm: Well-known Fintech...

The BoroughAny

Client Server

AI Engineer C# .Net JavaScript SaaS

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AI Engineer / Full Stack Developer (C# .Net JavaScript Agentic AI) Reigate / WFH to 95kAre you a technologist with an AI first mindset and full stack C# development skills?You...

ReigateWork From Home

Nexus Jobs

Javascript with Agile Software Engineer - Central London

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Job Reference: NJ0210Date Posted: 1 September 2026Recruiter: Nexus JobsLocation: LondonSalary: 60,000 to 85,000Sector: I.T. & CommunicationsJob Type: PermanentWork Hours: Full...

The BoroughAny

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Client Server

Application Security Engineer JavaScript

Client Server

Work From HomeThe Borough
The Borough
Work From Home
Posted 3 days ago by Client Server

Job Description

Application Security Engineer (JavaScript / TypeScript Web) London / Remote to 80kDo you have expertise with application security combined with strong JavaScript / TypeScript coding skills?You could be progressing your career at a global leader in Computer Vision, AI and biometric identity, whose technology protects governments, critical infrastructure and some of the world's largest enterprises against identity fraud, deepfakes and sophisticated cyber threats.As an Application Security Engineer you'll collaborate closely with the web development team to ensure security is at the centre of all web based applications. Joining a specialist security team, you'll focus on offensive web security, acting as the bridge between Security and Engineering. You'll perform penetration testing, reverse engineering and vulnerability assessments, identifying security risks and working closely with developers to build secure, resilient web applications from the ground up.This is a highly collaborative role where you'll provide expert guidance on secure coding practices, influence architecture and design decisions and help embed security throughout the software development lifecycle.Location / WFH:You can work from home most of the time, meeting up with colleagues in the London office approximately twice a month for innovation sessions and team meetings.About you:You have strong experience in web application security and offensive security testingYou have hands-on expertise in penetration testing and reverse engineeringYou have a deep understanding of modern web security vulnerabilities and mitigation techniquesYou have commercial JavaScript experience, with TypeScript knowledge highly desirableYou're comfortable writing and reviewing production code, not just identifying vulnerabilitiesYou're collaborative and pragmatic, able to work closely with engineering teamsWhat's in it for You?Salary to 80kBonusEquityExcellent career progressionApply now to find out more about this Application Security Engineer (JavaScript / TypeScript Web) opportunity.