Javascript developer css html Work, Jobs in London, Eng (with Salaries)

Software Engineer III - React / TypeScript, Gen AI, Frontend
JPMorganChase —London
- Full-time
- JavaScript
- Agile
- AI
Senior Frontend Developer
Sonata One —London
- Azure
- Bachelor's degree
- JavaScript
Sr. Frontend Engineer - Counter Adversary Operations Team (Hybrid, UK)
CrowdStrike —London
- Full-time
- AWS
- JavaScript
- HTML
Full Stack Product Engineer (SAAS) - (hybrid)
Eventogy —London
- £65,000 - £75,000 a year
- Full-time
- Hybrid work
- Bachelor's degree
- JavaScript
- APIs
- Gym membership
Quick apply
Senior Frontend Engineer
TransPerfect —London
- Full-time
- Hybrid work
- Bachelor's degree
- JavaScript
- Software development
Quick apply
Senior Frontend Engineer
elasticStage —King's Cross
- Full-time
- Hybrid work
- Computer Science
- Engineering
- JavaScript
- Annual leave
- Work from home
Quick apply
Software Engineering Lead – PBSA Operations Platform (React, TypeScript)
Viridis Real Estate —London
- £75,000 - £85,000 a year
- Full-time
- Hybrid work
- Azure
- SQL
- JavaScript
- Annual leave
Quick apply
SharePoint Developer
Bauer Media Group —London
- Hybrid work
- SQL
- Analysis skills
- JavaScript
Ruby on Rails Developer - mid level
Unboxed Consulting Limited —East London
- £53,182 - £60,000 a year
- Full-time
- Hybrid work
- SQL
- AWS
- JavaScript
- Flexible schedule
Quick apply
6h
Front End Engineer - JS, Angular, React, Agile, Redux, Vanilla
ANDigital —London
- JavaScript
- Agile
- HTML
Quick apply
Senior Developer
Critical Mass —London
- Hybrid work
- Management
- AWS
- JavaScript
Senior Software Engineer, Dashboard Platform
Algolia —London
- £82,500 - £114,800 a year
- Remote
- English
- AWS
- JavaScript
- Work from home
Senior Front-End Engineer
Fuse Energy —London
- Full-time
- Hybrid work
- Bachelor's degree
- JavaScript
- No degree
- Annual leave
Quick apply
Web Development Apprentice
Joseph Gallagher Limited —Grays
- £15,600 a year
- Full-time
- Azure
- SQL
- JavaScript
- Annual leave
- Employee assistance programme
Senior Platform Engineer, Dashboard Platform
Algolia —London
- £82,500 - £114,800 a year
- Remote
- English
- AWS
- JavaScript
- Work from home
Senior Software Engineer - React
Xantura —London
- Full-time
- Hybrid work
- Azure
- JavaScript
- APIs
- Annual leave
- Employee assistance programme
Quick apply
Senior Front End Engineer
1st Formations —London
- £90,000 - £100,000 a year
- Full-time
- Hybrid work
- JavaScript
- HTML
Adobe Developer
Wunderman Thompson MAP —London
- English
- Java
- SQL
Software Engineer II, Android Performance Console
Google —London
- Java
- C++
- Bachelor's degree
8d
Lead Developer (Mobile)
Post Office Ltd —London
- Full-time
- Java
- SQL
- AWS
- Annual leave
- Employee assistance programme

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Software Engineer III - React / TypeScript, Gen AI, Frontend

JPMorganChase -
London

Apply Now

Job details

Full-time

Qualifications

UI development
CSS
React
Git
JavaScript
UX
WCAG
Agile
UI
AI
TypeScript
Communication skills
Debugging
HTML

Full job description

JOB DESCRIPTION

We have an exciting and rewarding opportunity for you to take your software engineering career to the next level.

As a Software Engineer III in the Securities Services team within the Commercial & Investment Bank, you will design and deliver secure, scalable technology products that drive business success. You will build and evolve a shared frontend platform and reusable UI patterns, focusing on performance, accessibility, and developer experience. You will help deliver AI-enabled user experiences and accelerate engineering velocity by responsibly using modern AI developer tools. Your work will directly impact our customers and the way we build technology.

This is a pure frontend position with a strong AI focus: you will help deliver AI-enabled user experiences and raise engineering velocity by using modern AI developer tools responsibly (e.g., AI-assisted coding, debugging, and test generation), while maintaining a high bar for correctness, security, and quality.

Job Responsibilities:

Design, develop, and troubleshoot creative software solutions for technical challenges.
Write secure, high-quality production code and maintain UI logic that integrates with shared platforms.
Develop and maintain reusable React components and UI patterns for complex workflows.
Build high-performance, data-intensive user interfaces using profiling and optimization techniques.
Engineer accessible, inclusive experiences by partnering with UX and design teams.
Write and maintain automated tests (unit, integration, end-to-end) to ensure reliability and quality.
Collaborate with UX designers, product stakeholders, and developers to build custom UI components.
Develop tools and automated processes to streamline development and enhance developer experience.
Build Generative AI interface solutions using React and TypeScript, following CI/CD standards.
Work closely with Product, UX, and cross-functional partners to deliver capabilities in agile sprints.
Actively use AI development tools for code generation, refactoring, debugging, documentation, and testing.

Required Qualifications, Capabilities, and Skills:

Formal training or certification in software engineering.
Expertise in HTML, CSS, JavaScript, React, TypeScript, and state management.
Experience optimizing and debugging performance and memory issues in web applications.
Strong communication and collaboration skills with cross-functional teams.
Familiarity with agile methodologies, production readiness, and security-aware development.
Experience maintaining production UI code in large development teams.
Understanding of user experience principles and customer-oriented development.
Testing experience with component/unit and end-to-end tools (e.g., React Testing Library, Cypress, Playwright).
Experience building or integrating Generative AI features in frontend products.
Proficiency with CLI, Git, and CI/CD practices.
Regular use of AI coding tools with strong validation and code quality practices.

Preferred Qualifications, Capabilities, and Skills:

Exposure to cloud technologies and modern web delivery.
Experience with shared UI platforms or component libraries.
Strong accessibility engineering, including WCAG compliance and remediation.
Experience improving developer experience at scale.
Understanding of software best practices, development lifecycle, and Agile tools.

ABOUT US

J.P. Morgan is a global leader in financial services, providing strategic advice and products to the world's most prominent corporations, governments, wealthy individuals and institutional investors. Our first-class business in a first-class way approach to serving clients drives everything we do. We strive to build trusted, long-term partnerships to help our clients achieve their business objectives.

We recognize that our people are our strength and the diverse talents they bring to our global workforce are directly linked to our success. We are an equal opportunity employer and place a high value on diversity and inclusion at our company. We do not discriminate on the basis of any protected attribute, including race, religion, color, national origin, gender, sexual orientation, gender identity, gender expression, age, marital or veteran status, pregnancy or disability, or any other basis protected under applicable law. We also make reasonable accommodations for applicants' and employees' religious practices and beliefs, as well as mental health or physical disability needs. Visit our FAQs for more information about requesting an accommodation.

ABOUT THE TEAM

J.P. Morgan's Commercial & Investment Bank is a global leader across banking, markets, securities services and payments. Corporations, governments and institutions throughout the world entrust us with their business in more than 100 countries. The Commercial & Investment Bank provides strategic advice, raises capital, manages risk and extends liquidity in markets around the world.

Apply Now

Refine Your Search

javascript developer css html jobs in london, eng

Software Engineer III - React / TypeScript, Gen AI, Frontend

Senior Frontend Developer

Sr. Frontend Engineer - Counter Adversary Operations Team (Hybrid, UK)

Full Stack Product Engineer (SAAS) - (hybrid)

Senior Frontend Engineer

Senior Frontend Engineer

Software Engineering Lead – PBSA Operations Platform (React, TypeScript)

SharePoint Developer

Ruby on Rails Developer - mid level

Front End Engineer - JS, Angular, React, Agile, Redux, Vanilla

Senior Developer

Senior Software Engineer, Dashboard Platform

Senior Front-End Engineer

Web Development Apprentice

Senior Platform Engineer, Dashboard Platform

Senior Software Engineer - React

Senior Front End Engineer

Adobe Developer

Software Engineer II, Android Performance Console

Lead Developer (Mobile)

I want to receive the latest job alerts for javascript developer css html in london, eng

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