Senior Frontend Developer - React
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Senior Frontend Developer - React
Location
UK - Edinburgh
Experience
Senior
Posted
Jul 10, 2026
Apply by
August 9, 2026
Applicants
0
Early applicantEasy applyFull-timeHybrid
Job Description
**Senior Frontend Developer (*React*) - Edinburgh**
Location: Edinburgh (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.
#LI-DNI
Key Responsibilities
- Build performant and maintainable user interfaces using React and TypeScript
- Develop responsive cross-browser compatible layouts using modern CSS and component libraries
- Optimize application performance using code-splitting, memorization, and lazy loading
- Ensure secure application development following OAuth2, OpenID Connect, and JWT principles
- Collaborate with backend, design, and product teams to shape user journeys
- Contribute to team learning through code reviews, mentoring, and sharing best practices
Skills Required
JavaScriptTypeScriptReactCSSFlexboxGridSASSLESSViteWebpackJestReact Testing LibraryCypressPlaywrightRESTful APIsOAuth2OpenID ConnectJWTRedux ToolkitContext APICollaborationMentoringCommunicationVueAngularNext.jsCI/CDStorybookDesign systemsDebuggingCuriosityExperimentation
Benefits
- Discretionary bonus
- Competitive pension
- Health insurance
- Life insurance
- Critical illness cover
- Mental health support (CareFirst, Unmind, Aviva)
- Maternity, adoption, and shared parental leave
- Paid leave for sickness, pregnancy loss, fertility treatment, menopause, and bereavement
- 8 complimentary backup care sessions
- 5 weeks of annual leave with option to buy or sell days
- Minimum 40 hours of annual training
- Business Coach assignment
- Online GP services
- Gympass (Wellhub)
- Travel insurance
- Tastecard
- Season ticket loans
- Cycle to Work
- Dental insurance
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