UI Frontend Developer

Posted 4 Days Ago
Be an Early Applicant
Budapest, HUN
In-Office
12M-20M Annually
Mid level
Fintech • Financial Services
The Role
Develop and maintain production-grade frontend applications using TypeScript and React.js. Build reusable UI components, manage application state with Redux, integrate REST APIs and OAuth-based authentication, optimize performance, and write automated tests. Collaborate with designers, backend developers, and product owners, participate in code reviews, mentor junior developers, and support secure, scalable cloud-based identity services.
Summary Generated by Built In

The Mid-level UI Frontend Developer will be an integral part of the Identity Innovation space within the Cloud Technology Service department. This intermediate-level position is responsible for the design, development, and implementation of robust and intuitive user interfaces. The primary objective is to build production-grade frontend applications, predominantly using TypeScript and React.js, that enhance user experience, streamline workflows, and support the automation and cost reduction initiatives across the firm. The successful candidate will ensure high-quality visual and functional standards are met within existing and planned technology frameworks, contributing to the strategic evolution of our cloud-based identity services.

Responsibilities:

  • Design, develop, and maintain high-quality, responsive, and performant user interfaces using TypeScript, React.js, and modern frontend technologies.
  • Implement state management solutions (e.g., Redux, Redux Toolkit) to ensure scalable and maintainable application state.
  • Collaborate with UI/UX designers, backend developers, and product owners to translate requirements into engaging and user-friendly web experiences.
  • Integrate frontend applications with various APIs and ensure seamless data flow and authentication (e.g., via OAuth-2 for SSO).
  • Develop reusable UI components and maintain a component storybook for consistency and efficiency across projects.
  • Ensure the technical feasibility of UI/UX designs and optimize applications for maximum speed and scalability.
  • Write comprehensive unit and integration tests for frontend components and applications.
  • Participate in code reviews, mentor junior team members, and contribute to continuous improvement of frontend development processes and best practices.
  • Ensure solutions and processes are in accordance with audit initiatives and requirements, consulting with Business Information Security Officers (BISOs) and Technology Information Security Officers (TISOs) as needed.

Qualifications:

  • Proven relevant experience in a Frontend Engineering role, with a strong focus on UI development.
  • Demonstrated experience working in a large, complex, and/or global environment, preferably within Financial Services.
  • Proven ability to manage technical projects or significant project components effectively.
  • Consistently demonstrates clear and concise written and verbal communication skills, especially in technical contexts.
  • Comprehensive understanding of software design principles, frontend architecture, and analytics tools to identify best practices.
  • Demonstrated analytic and diagnostic skills for troubleshooting and problem-solving.
  • Ability to work effectively in a matrix environment and partner with virtual teams.
  • Ability to work independently, prioritize tasks, and take ownership of various parts of a project or initiative from conception to deployment.
  • Ability to work under pressure and manage tight deadlines or unexpected changes in expectations or requirements in a fast-paced development environment.
  • Proven track record of contributing to operational process change and improvement through technical solutions.
  • Bachelor’s degree/University degree in Computer Science, Engineering, or a related field, or equivalent experience.

Must-Have Skills:

  • Programming Languages: TypeScript
  • Frontend Frameworks: React.js Fundamentals
  • State Management: Redux, Redux Toolkit
  • Styling: CSS, and experience with styling-in-JS libraries or pre/post-processors
  • Routing: Client-side routing in React applications
  • API Integration: Experience consuming RESTful APIs
  • Build Tools: Webpack, Vite
  • Authentication: Integration with SSO and Authentication providers via OAuth-2
  • Version Control: Git
  • Testing Frameworks: Experience with Jest, React Testing Library, Cypress, or similar
  • Component Documentation: Component Storybook
  • Containerization: Docker, Kubernetes

Nice-to-Have Skills:

  • Frontend Frameworks: Experience with Next.js or Gatsby
  • Advanced State Management: Familiarity with modern solutions like Recoil, Zustand, or Jotai
  • Performance Optimization: Techniques for optimizing web application performance
  • Real-time Communication: Experience with Web Sockets
  • An additional programming language like Python is a plus

What we can offer you:

By joining Citi Hungary, you will not only be part of a business casual workplace with a hybrid working model (up to 2 days working at home per week), but also receive a competitive compensation package and enjoy a whole host of additional benefits that support you (and your family) to be well, live well and save well:

  • Cafeteria Program
  • Home Office Allowance (for colleagues working in hybrid work models)
  • Paid Parental Leave Program (maternity and paternity leave)
  • Private Medical Care Program and onsite medical rooms at our offices
  • Pension Plan Contribution to voluntary pension fund
  • Group Life Insurance
  • Employee Assistance Program
  • Access to a wide variety of learning and development programs, online course libraries and upskilling platforms, such as Udemy and Degreed
  • Flexible work arrangements to support you in managing work - life balance
  • Career progression opportunities across geographies and business lines
  • Socially active employee communities with diverse networking opportunities

Alongside these benefits Citi is committed to ensuring our workplace is where everyone feels comfortable coming to work as their whole self every day.  We want the best talent around the world to be energized to join us, motivated to stay, and empowered to thrive. 

Sounds like Citi has everything you need?

Then apply to discover the true extent of your capabilities. 

#LI-AE1

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Job Family Group: Technology

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Job Family:Systems & Engineering

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Time Type:Full time

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Primary Location Full Time Salary Range:12 211 560,00 Ft - 20 474 640,00 Ft

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Most Relevant Skills Please see the requirements listed above.

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Other Relevant Skills For complementary skills, please see above and/or contact the recruiter.

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Citi is an equal opportunity employer, and qualified candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other characteristic protected by law.

 

If you are a person with a disability and need a reasonable accommodation to use our search tools and/or apply for a career opportunity review Accessibility at Citi.
View Citi’s EEO Policy Statement and the Know Your Rights poster.

Skills Required

  • Relevant experience in a frontend engineering role focused on UI development
  • Experience working in a large, complex, or global environment, preferably in financial services
  • Ability to manage technical projects or significant project components
  • Strong written and verbal communication skills in technical contexts
  • Understanding of software design principles, frontend architecture, and analytics tools
  • Analytical and diagnostic skills for troubleshooting and problem-solving
  • Ability to work effectively in a matrix environment and with virtual teams
  • Ability to work independently, prioritize tasks, and own project or initiative components from conception to deployment
  • Ability to work under pressure and manage deadlines or changing requirements
  • Experience contributing to operational process change and improvement through technical solutions
  • Bachelor's degree in Computer Science, Engineering, or a related field, or equivalent experience
  • TypeScript
  • React.js fundamentals
  • Redux or Redux Toolkit
  • CSS and styling-in-JS libraries or pre/post-processors
  • Client-side routing in React applications
  • RESTful API integration
  • Webpack or Vite
  • SSO and OAuth 2.0 authentication integration
  • Git
  • Jest, React Testing Library, Cypress, or similar testing frameworks
  • Component Storybook
  • Docker and Kubernetes
  • Next.js or Gatsby
  • Recoil, Zustand, Jotai, or similar modern state management solutions
  • Frontend performance optimization
  • WebSockets
  • An additional programming language such as Python

Citi Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Citi and has not been reviewed or approved by Citi.

  • Healthcare Strength — Benefits coverage is positioned as comprehensive, including health, dental, and vision insurance plus on-site clinics, prescription drug support, and disability coverage. Family-building support such as fertility assistance is described as a notable differentiator within the overall package.
  • Retirement Support — Retirement benefits are framed as strong, highlighted by a 401(k) with matching and additional plan options like a Roth 401(k). Financial support is reinforced through discounts and broader financial guidance resources tied to the benefits ecosystem.
  • Wellbeing & Lifestyle Benefits — Wellbeing support extends beyond insurance through programs like an Employee Assistance Program, counseling/legal resources, and gym or wellness reimbursement. These offerings increase the perceived total rewards value even when cash compensation sentiment varies by role.

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The Company
HQ: Kwun Tong, Kowloon
223,850 Employees

What We Do

Citi's mission is to serve as a trusted partner to our clients by responsibly providing financial services that enable growth and economic progress. Our core activities are safeguarding assets, lending money, making payments and accessing the capital markets on behalf of our clients. We have 200 years of experience helping our clients meet the world's toughest challenges and embrace its greatest opportunities. We are Citi, the global bank – an institution connecting millions of people across hundreds of countries and cities.

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