Front end web developer (html, css, javascript) Work, Jobs in London, Eng (with Salaries)

Software Engineer III - React / TypeScript, Gen AI, Frontend
JPMorganChase —London
- Full-time
- JavaScript
- Software development
- Agile
Shopify Developer
Oh Polly —London
- £50,000 - £70,000 a year
- Hybrid work
- JavaScript
- HTML
- Employee discount
- Gym membership
Quick apply
Senior Web & Digital Services Officer
Royal College of Veterinary Surgeons —London
- £43,000 a year
- Full-time
- Project management
- JavaScript
- Organisational skills
8d
Senior Front End Engineer
1st Formations —London
- £90,000 - £100,000 a year
- Full-time
- Hybrid work
- JavaScript
- HTML
Lead Frontend Engineer
Acre Software —London
- Remote
- JavaScript
- Software development
- In-person
- Annual leave
- Flexible schedule
Senior Front-End/Full-Stack Engineer
ONDA —London
- Hybrid work
- Computer Science
- Java
- JavaScript
Quick apply
Senior Software Engineer I (JavaScript))
RELX —London
- Full-time
- JavaScript
- APIs
- Agile
- Employee assistance programme
- Employee discount
Senior Frontend Engineer
elasticStage —King's Cross
- Full-time
- Hybrid work
- Computer Science
- Engineering
- JavaScript
- Annual leave
- Work from home
Quick apply
Senior Software Engineer I (JavaScript))
Elsevier —London
- Full-time
- JavaScript
- APIs
- Agile
- Employee assistance programme
- Employee discount
Web Development Apprentice
Joseph Gallagher Limited —Grays
- £15,600 a year
- Full-time
- Azure
- SQL
- JavaScript
- Annual leave
- Employee assistance programme
Scientific Customer Services & Technical Executive (Neasden, NW London)
Dazzle: Commercial & Office Cleaning | London —London
- £22,000 - £24,000 a year
- Hybrid work
- Computer Science
- Bachelor's degree
- JavaScript
Quick apply
UI Developer (Hedge Fund)
Durlston Partners —London
- £150,000 a year
- JavaScript
- APIs
- Communication skills
Senior Frontend Developer
Sonata One —London
- Azure
- Bachelor's degree
- JavaScript
FE Developer
Methods Business and Digital Technology —London
- Full-time
- Hybrid work
- Azure
- JavaScript
- APIs
- Employee assistance programme
Quick apply
Creative Technologist
Christie's —London
- Full-time
- Childcare
- JavaScript
- Agile
- Annual leave
- Employee assistance programme
Lead Front End Developer JD || Must have UK Government / PS experience
Amber Labs —London
- JavaScript
- APIs
- Agile
- Annual leave
- Employee discount
Quick apply
Sr. Frontend Engineer - Counter Adversary Operations Team (Hybrid, UK)
CrowdStrike —London
- Full-time
- AWS
- JavaScript
- HTML
Senior Frontend Engineer
TransPerfect —London
- Full-time
- Hybrid work
- Bachelor's degree
- JavaScript
- Software development
Quick apply
Software Developer-Backend (SFIA4)
Zaizi —London
- £60,000 - £75,000 a year
- Full-time
- Hybrid work
- DevOps
- SQL
- AWS
- Annual leave
- Work from home
Quick apply
Senior Software Engineer - React
Xantura —London
- Full-time
- Hybrid work
- Azure
- JavaScript
- APIs
- Annual leave
- Employee assistance programme
Quick apply

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front end web developer (html, css, javascript) jobs near london, eng

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

JPMorganChase -
London

Apply Now

Job details

Full-time

Qualifications

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

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.
Leverages enterprise-authorized AI coding assist tools within the work environment to improve code quality, delivery speed, and productivity across complex deliverables (e.g., code generation/refactoring, unit test creation, documentation), while validating outputs through peer review, automated testing, and secure coding standards; contributes learnings and reusable patterns to improve broader team effectiveness.
Applies knowledge of tools within the Software Development Life Cycle toolchain, including enterprise-authorized AI-assisted development and automation capabilities, to improve the value realized by automation.
Build Generative AI interface solutions using React and TypeScript, following CI/CD standards.
Actively use AI development tools for code generation, refactoring, debugging, documentation, and testing; work closely with Product, UX, and cross-functional partners to deliver capabilities in agile sprints.

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.
Hands-on experience using enterprise-authorized AI-assisted software development tools within the work environment (e.g., for coding, test creation, troubleshooting, or documentation) with demonstrated ability to critically evaluate, validate, and refine AI-generated outputs for correctness, performance, and security.
Understanding of responsible AI use in engineering workflows, including data sensitivity considerations, secure handling of inputs/outputs, and adherence to resiliency and security expectations; ability to guide peers on safe and effective usage within team practices.
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.

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.
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

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front end web developer (html, css, javascript) jobs in london, eng

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

Shopify Developer

Senior Web & Digital Services Officer

Senior Front End Engineer

Lead Frontend Engineer

Senior Front-End/Full-Stack Engineer

Senior Software Engineer I (JavaScript))

Senior Frontend Engineer

Senior Software Engineer I (JavaScript))

Web Development Apprentice

Scientific Customer Services & Technical Executive (Neasden, NW London)

UI Developer (Hedge Fund)

Senior Frontend Developer

FE Developer

Creative Technologist

Lead Front End Developer JD || Must have UK Government / PS experience

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

Senior Frontend Engineer

Software Developer-Backend (SFIA4)

Senior Software Engineer - React

I want to receive the latest job alerts for front end web developer (html, css, javascript) in london, eng

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