About the Business:

Global Link, a division of State Street Global Markets, is a leader in providing electronic trading platforms across multiple asset classes. Our platforms are used by 19 of the top 20 global asset managers to execute trades and manage post‑trade settlement processes.

The team builds high‑scale, mission‑critical trading applications handling hundreds of billions of dollars in AUM. Our products use modern web technologies on the front end and are integrated with distributed backend systems built on Java, Node.js, and Oracle. The platform is undergoing a major re‑architecture to microservices and cloud‑native deployment on AWS/Kubernetes.

Role Summary:

We are looking for a Senior Front‑End / UI Engineer with strong expertise in React JS, GraphQL, and modern UI frameworks to build highly responsive, performant, and intuitive user interfaces for electronic trading and analytics platforms.

The ideal candidate is hands‑on, passionate about UI engineering excellence, and experienced in building data‑intensive, real‑time web applications.

What You Will Be Responsible For:

Design and develop modern, scalable front‑end applications using React and related UI technologies.
Build reusable UI components and design systems with a focus on performance, usability, and accessibility.
Integrate UI applications with backend services via GraphQL and REST APIs.
Collaborate closely with backend, product, and UX teams to define UI architecture and data contracts.
Develop and maintain technical documentation, UI architecture diagrams, and component guidelines.
Participate in code reviews, ensuring high code quality and best practices.
Support deployment, testing, production rollout, and ongoing support activities.
Ensure compliance with security, privacy, and enterprise UI standards.

Required Qualifications:

Core Front‑End Skills (Priority #1)

Strong experience with React JS (functional components, hooks, context, state management).
Expert knowledge of JavaScript (ES6+) / TypeScript.
Strong understanding of HTML5, CSS3, responsive design, and cross‑browser compatibility.
Proven experience building high‑performance, data‑driven UI applications.

API & Data Integration (Priority #2)

Hands‑on experience with GraphQL (queries, mutations, schema understanding, Apollo/Relay).
Strong understanding of RESTful APIs and asynchronous data handling.
Experience handling real‑time or near real‑time data in UI applications.

UI Architecture & Tooling (Priority #3)

Experience with modern UI build tools such as Webpack, Vite, Babel.
Familiarity with micro‑frontend or modular UI architectures.
Experience deploying UI applications in cloud‑native environments (AWS, Kubernetes) is highly desirable.

Strong Plus / Nice‑to‑Have Skills:

UI frameworks and libraries such as Material UI, Ant Design, Tailwind, Styled Components.
State management libraries (Redux, Zustand, React Query).
Experience with real‑time UI technologies (WebSockets, SSE).
Testing frameworks such as Jest, React Testing Library, Cypress.
Experience working in financial services, trading, or analytics platforms.
Familiarity with CI/CD pipelines and DevOps practices for UI applications.

Candidate Profile:

Strong problem‑solving and communication skills.
Comfortable working in a small, elite, fast‑moving development team.
Passionate about UI performance, clean design, and user experience.

Why This Role Is Important to Us:

State Street Global Markets - GlobalLink - BestX® is a leading technology platform delivering independent, real‑time Best Execution and TCA analytics across FX, Fixed Income, Equities, Commodities, and Crypto.

Our UI applications are client‑facing and mission‑critical, enabling transparency, regulatory compliance, and decision‑making for over 140 global financial institutions. BestX has won the Risk Market Technology Award for Best Execution Product of the Year multiple times.

Why Join Us:

Work on cutting‑edge UI technology in a high‑impact financial domain.
Collaborate in a global, innovation‑driven engineering culture.
Build products that directly influence trading quality and regulatory outcomes.
Competitive compensation and flexible working environment.

About State Street

Across the globe, institutional investors rely on us to help them manage risk, respond to challenges, and drive performance and profitability. We keep our clients at the heart of everything we do, and smart, engaged employees are essential to our continued success.

We are committed to fostering an environment where every employee feels valued and empowered to reach their full potential. As an essential partner in our shared success, you'll benefit from inclusive development opportunities, flexible work-life support, paid volunteer days, and vibrant employee networks that keep you connected to what matters most. Join us in shaping the future.

As an Equal Opportunity Employer, we consider all qualified applicants for all positions without regard to race, creed, color, religion, national origin, ancestry, ethnicity, age, disability, genetic information, sex, sexual orientation, gender identity or expression, citizenship, marital status, domestic partnership or civil union status, familial status, military and veteran status, and other characteristics protected by applicable law.

Discover more information on jobs at

Read our

Lead Frontend Developer (React / GraphQL) - Assistant Manager