Senior Frontend Developer - React

Posted 4 Days Ago
Be an Early Applicant
London, England
Hybrid
Senior level
Fintech • Professional Services • Consulting • Energy • Financial Services • Cybersecurity • Generative AI
Be Yourself at Work, Make a Difference, and Act with Integrity are our values at Capco.
The Role
As a Senior Frontend Developer, you'll build responsive web applications using React and modern JavaScript, optimize performance, and collaborate with cross-functional teams.
Summary Generated by Built In

Senior Frontend Developer (React)

Location: London (Hybrid) | Practice Area: Technology & Engineering | Type: Permanent

Bring modern web applications to life in the world of financial services

The Role

As a Senior Frontend Developer at Capco, you’ll craft clean, responsive, and secure web applications that enhance digital experiences for global financial clients. Working in an agile environment, you’ll help shape UI solutions using React and modern JavaScript technologies. You’ll play a key role in both hands-on development and guiding best practices across teams.

What You’ll Do

  • Build performant and maintainable user interfaces using React (Hooks, Context Suspense) and Typescript
  • Develop responsive cross-browser compatible layouts using modern CSS (Flexbox, Grid), CSS-in-JS or modular CSS, and component libraries such as MUI or Tailwind
  • Optimise application performance using techniques like code-splitting, memorization, and lazy loading.
  • Ensure secure application development following OAuth2, OpenID Connect, and JWT principles
  • Collaborate closely with backend, design, and product teams to shape engaging user journeys
  • Contribute to team learning through code reviews, mentoring, and sharing best practices

What We’re Looking For

  • Strong proficiency in JavaScript (ES5/ES6+) and Typescript
  • Hands-on experience building production application in React 18+
  • Solid understanding of state management (Context API, Redux Toolkit, or similar)
  • Experience consuming RESTful APIs and handling async data with modern patterns
  • Strong CSS skills including Flexbox, Grid, and CSS pre-processors like SASS/LESS
  • Familiarity with modern build and tooling ecosystems such as Vite, Webpack or similar
  • Experience with frontend testing using Jest, React Testing Library, Cypress or Playwright
  • A passion for UI performance, quality, and delivering clean code

Bonus Points For

  • Exposure to Vue, Angular, or Next.js in production environments
  • Understanding of secure application design and frontend performance optimisation
  • Experience deploying applications in CI/CD pipelines
  • Working knowledge of design systems, component-driven development and tools like Storybook
  • Strong debugging skills and ability to work in fast-paced agile teams
  • Curiosity for new technologies and experimentation

Why Join Capco

  • Deliver high-impact technology solutions for Tier 1 financial institutions
  • Work in a collaborative, flat, and entrepreneurial consulting culture
  • Access continuous learning, training, and industry certifications
  • Be part of a team shaping the future of digital financial services
  • Help shape the future of digital transformation across FS & Energy.

Benefits

We offer a competitive, people-first benefits package designed to support every aspect of your life:

  • Core Benefits: Discretionary bonus, competitive pension, health insurance, life insurance and critical illness cover.
  • Mental Health: Easy access to CareFirst, Unmind, Aviva consultations, and in-house first aiders.
  • Family-Friendly: Maternity, adoption, shared parental leave, plus paid leave for sickness, pregnancy loss, fertility treatment, menopause, and bereavement.
  • Family Care: 8 complimentary backup care sessions for emergency childcare or elder care.
  • Holiday Flexibility: 5 weeks of annual leave with the option to buy or sell holiday days based on your needs.
  • Continuous Learning: Your growth, your way - minimum 40 hours of training annually. Take your pick; workshops, certifications, e-learning. Also, Business Coach assigned from Day One: Get one-on-one guidance to fast-track your goals and accelerate your development.
  • Healthcare Access: Convenient online GP services.
  • Extra Perks: Gympass(Wellhub), travel insurance, Tastecard, season ticket loans, Cycle to Work, and dental insurance.

Inclusion at Capco We’re committed to making our recruitment process accessible and straightforward for everyone. If you need any adjustments at any stage, just let us know – we’ll be happy to help. We value each person’s unique perspective and contribution. At Capco, we believe that being yourself is your greatest strength. Our #BeYourselfAtWork culture encourages individuality and collaboration – a mindset that shapes how we work with clients and each other every day.


Top Skills

CSS
Css-In-Js
Cypress
JavaScript
Jest
Mui
Playwright
React
React Testing Library
Tailwind
Typescript
Vite
Webpack

What the Team is Saying

Sarvani
Michael
Josh
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The Company
HQ: London
6,000 Employees
Year Founded: 1998

What We Do

Capco, a Wipro company, is a global management and technology consultancy specializing in driving transformation in the energy and financial services industries. Capco operates at the intersection of
business and technology by combining innovative thinking with unrivalled industry knowledge to fast-track digital initiatives for banking and payments, capital markets, wealth and asset management, insurance,
and the energy sector. Capco’s cutting edge ingenuity is brought to life through its award-winning Be Yourself At Work culture and diverse talent.

TRUSTED ADVISORS - Our collaborative and entrepreneurial approach position us as trusted long-term partners to our clients.

DEEP EXPERTISE - Clients look to us for clear guidance, proven expertise, and the support they need to set their companies up for success.

DISRUPTIVE SOLUTIONS- We do not provide off -the-shelf answers to clients’ challenges. Instead, we work in close collaboration to understand the issues, and craft disruptive, bespoke solutions.

ACCOUNTABILITY AND OWNERSHIP - We recognize every client has distinct needs and expectations, and we take ownership and accountability for the solutions we design, build, and deliver.

Why Work With Us

We support and encourage an inclusive culture, entrepreneurial outlook and independent thinking. Capco is not about organizational charts and rigid hierarchies – we want all employees to feel that Capco is their firm to own and run. We believe diversity powers innovation. Be Yourself At Work (#BYAW) is an integral and underlying part of our culture

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Capco Offices

Hybrid Workspace

Employees engage in a combination of remote and on-site work.

Typical time on-site: Not Specified
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