Interface designer javascript and Work, Jobs (with Salaries)

Senior Front End Engineer
1st Formations —London
- £90,000 - £100,000 a year
- Full-time
- Hybrid work
- JavaScript
- HTML
Software Engineer (Frontend)
Nevis Wealth —London
- Full-time
- English
- JavaScript
- APIs
- Annual leave
Technical UI Designer – 12 Month Contract
d3t —Runcorn
- Hybrid work
- C++
- JavaScript
- IT
- Free parking
- Flexible schedule
Senior Front-end JavaScript developer
Byte9 —London
- AWS
- Project management
- JavaScript
Junior Front-End Developer
Angel Solutions —Liverpool
- £25,000 - £30,000 a year
- Full-time
- Hybrid work
- JavaScript
- In-person
- HTML
- Annual leave
Quick apply
Founding Engineer
Jack&Jill —London
- From £240,000 a year
- Full-time
- Azure
- Java
- SQL
Quick apply
3d
Senior Frontend Engineer
Beyond Sports —Basingstoke
- £61,860 - £83,190 a year
- Full-time
- Hybrid work
- Continuous improvement
- JavaScript
- Leadership
Product Design Engineer
Oneiro Solutions —Edinburgh
- £50,000 - £85,000 a year
- Full-time
- Hybrid work
- JavaScript
- APIs
- Banking
Quick apply
8d
Software Engineer III - React / TypeScript, Gen AI, Frontend
JPMorganChase —London
- Full-time
- JavaScript
- Software development
- Agile
Full Stack Web Developer - Website Development (mid-level)
Moneycorp —London
- Full-time
- English
- JavaScript
- APIs
Cloud Frontend Engineer
Signaloid —Cambridge
- £45,000 - £60,000 a year
- Full-time
- Remote
- Computer Science
- Engineering
- Master's degree
Quick apply
Senior Frontend Engineer
elasticStage —King's Cross
- Full-time
- Hybrid work
- Computer Science
- Engineering
- JavaScript
- Annual leave
- Work from home
Quick apply
Senior Interaction Designer
Version 1 —Newcastle upon Tyne
- Full-time
- Hybrid work
- AWS
- JavaScript
- AI
- Employee assistance programme
- Employee discount
Quick apply
UI Engineer
National Grid —Warwick
- £55,000 - £65,000 a year
- Full-time
- Hybrid work
- Analysis skills
- JavaScript
- APIs
- Annual leave
- Life insurance
MERN Stack Developer (3–4 Years Experience)
Crystal Vision —Remote
- £750 - £1,200 a month
- Full-time
- Remote
- AWS
- Analysis skills
- JavaScript
Quick apply
Web Developer
Mediaworks —Newcastle upon Tyne
- Full-time
- Hybrid work
- JavaScript
- APIs
- Communication skills
- Annual leave
Front End Developer
Solirius Reply —London
- £40,000 - £65,000 a year
- Full-time
- Hybrid work
- Azure
- AWS
- Analysis skills
- Annual leave
- Employee assistance programme
Quick apply
Member of Technical Staff - Software Engineer
Tessl —London
- Full-time
- Hybrid work
- C++
- JavaScript
- APIs
Software Engineer, Full Stack - UK
Ema —London
- Full-time
- Remote
- Computer Science
- Bachelor's degree
- JavaScript
11d
Product Engineer, Frontend
Kinship —London
- Full-time
- JavaScript
- HTML
Quick apply

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Senior Front End Engineer

1st Formations
London

Apply Now

Job details

Full-time
£90,000 - £100,000 a year

Qualifications

CSS
React
Content management systems
Product development
JavaScript
Payroll
Figma
TypeScript
HTML

Full job description

About 1st Formations

At 1st Formations, we empower entrepreneurs to start, run, and grow their businesses with confidence.

Running a business shouldn’t be slowed down by company formation, statutory compliance, accounting, or payroll. From day one, these essentials should be seamless, reliable, and intelligently handled — freeing founders to focus on building and scaling.

We’re a leading UK provider of company formation and compliance services, building a modern, fully integrated technology platform that supports founders at every stage of their journey. Our platform brings together formation, compliance, accounting, payroll, and ongoing business support in one cohesive experience.

No stitched-together services.
No legacy workflows disguised as software.

Just a single, scalable platform built for ambitious founders who want to move fast, stay compliant, and grow with confidence.

Why Join Us Now?

You’ll be joining a business with strong momentum, clear direction, and real opportunity for progression.

£18m annual revenue, including £9m ARR
Over 1 million companies formed
Certified B Corp and Carbon Neutral Business
Forecast to grow 5x–10x over the next three years

The Role

We're seeking a Senior Frontend Engineer who combines technical excellence with a sharp eye for detail and a passion for delivering beautiful, pixel-perfect user interfaces. In this role, you'll play a critical part in shaping the user experience of our product by transforming high-fidelity designs into seamless, responsive, and accessible web applications using React and Next.js.

You'll work closely with our product and design teams to shape the architecture of our frontend systems at the UK's leading company formation agent — 1 million+ companies formed since 2014.

Key Responsibilities

Develop, maintain, and optimise high-quality, responsive, and performant web applications using React and Next.js, ensuring a consistent experience across devices and browsers

Collaborate closely with product designers to translate Figma mock-ups into seamless, visually polished interfaces that meet both aesthetic and functional requirements
Write clean, maintainable, and efficient code adhering to modern development standards, accessibility guidelines, and industry best practices
Contribute to frontend architecture — defining scalable patterns, reusable components, and maintainable structures to support long-term product growth
Participate in code reviews and technical discussions, sharing knowledge and upholding code quality and consistency across the engineering team
Continuously improve application performance through profiling, optimisation, and modern tooling and techniques
Stay current with the latest trends and advancements in frontend development, particularly within the React / Next.js ecosystem

What we are looking for

10+ years building modern web applications, with deep production expertise in React and Next.js
Expert-level JavaScript and TypeScript, plus strong HTML and CSS — including responsive layouts, accessibility, and cross-browser compatibility
In-depth experience with Payload CMS
Proven ability to translate Figma designs into pixel-perfect, maintainable frontend code
Experience with analytics, A/B testing, and data-driven methods to understand user behaviour and inform feature development
Solid understanding of frontend performance — able to identify bottlenecks and implement effective solutions
Proactive, self-driven, and highly accountable — you take initiative, follow through, and hold yourself to a high standard
Grit and drive — comfortable diving into complex problems, experimenting, and iterating to find the best solution
Collaborative team player who thrives in a fast-paced, high-growth environment

What We Offer

£80-90k and comprehensive benefits package
Hybrid working model
Real opportunities for progression as the business scales
The chance to influence both customer experience and product development
A culture that values ownership, impact, and continuous learning

Equal Opportunities
1st Formations is an equal opportunity employer and is committed to creating a diverse and inclusive workplace. We consider all applicants for employment without regard to race, colour, religion, sex, national origin, sexual orientation, age, citizenship, marital status, criminal history, disability, or gender identity. We encourage individuals from all backgrounds to apply. If you have a disability or special need that requires accommodation, please let us know.

Compensation Range: £90K - £100K

Apply Now

Refine Your Search

interface designer javascript and jobs

Senior Front End Engineer

Software Engineer (Frontend)

Technical UI Designer – 12 Month Contract

Senior Front-end JavaScript developer

Junior Front-End Developer

Founding Engineer

Senior Frontend Engineer

Product Design Engineer

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

Full Stack Web Developer - Website Development (mid-level)

Cloud Frontend Engineer

Senior Frontend Engineer

Senior Interaction Designer

UI Engineer

MERN Stack Developer (3–4 Years Experience)

Web Developer

Front End Developer

Member of Technical Staff - Software Engineer

Software Engineer, Full Stack - UK

Product Engineer, Frontend

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