Principal Frontend Developer (React)

Added: 04/06/2025
💼 Capco
🌍 UK - London
🕒 Full-time
💷
🏷️ react
🏷️ angular
🏷️ vue.js
🏷️ next.js
🏷️ javascript
🏷️ typescript
🏷️ redux
🏷️ mobx
🏷️ css
🏷️ webpack
🏷️ responsive design
🏷️ jest
🏷️ cloud
🏷️ docker
🏷️ kubernetes
🏷️ ci/cd
🏷️ oauth
🏷️ jwt

Job description Capco is a global technology and business consultancy focused on the financial services sector. They are looking for a Principal Frontend Developer to contribute to engaging projects with leading banks.

Responsibilities

  • Engineering best practices and continuous improvement.
  • Expertise in team domains and data flows.
  • Recommend tooling and solutions, influencing testing strategy.
  • Architect services and systems using design patterns.
  • Manage engineers, ensuring efficiency and quality.
  • Contribute to products and solutions, articulating value to customers.
  • Deliver critical business and customer-facing applications.
  • Communicate complex ideas effectively.
  • Stay updated on new technologies and experiment with them.
  • Contribute to the future of finance engineering.

Requirements

  • Exceptional JavaScript/TypeScript experience.
  • React (preferred), Vue.js, Next.js, Angular.
  • CSS: SASS/LESS, Bootstrap, SemanticUI, MaterialUI, Responsive design.
  • Security standards: OAuth2, OpenID Connect & JWT.
  • Understanding of asynchronous requests, partial page updates, and AJAX.
  • Experience with state management tools (Redux preferred).
  • Task runners: Webpack (preferred), Grunt.
  • Testing frameworks: Mocha, Jasmine, Chai, Jest, Enzyme.
  • CI/CD pipelines and containerization (Docker, Kubernetes).
  • Coaching and mentoring junior developers.
  • Debugging and resolving application issues.
  • Knowledge of cloud concepts and security technologies.

Benefits

  • Innovation-focused work culture.
  • Ongoing learning opportunities.
  • Flat organizational structure.
  • Diverse and inclusive culture.
  • Enhanced family-friendly benefits (maternity/adoption leave, sick leave, etc.)

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