Senior Software Engineer In React/javascript

Senior Software Engineer in React/JavaScript

Join our team at ISS STOXX – Market Intelligence, where you'll be at the forefront of building and maintaining our financial platforms in US, UK and Australia. As a leading provider of critical data, insight, and workflow solutions to global asset managers, insurance companies and distributors in the financial industry, we're committed to driving innovation and excellence. As a Senior Software Engineer, you will take ownership of complex technical projects, guide the development of high-quality code, and mentor junior engineers. You will be responsible for ensuring that the architecture, design, and implementation of our products are scalable and maintainable. You will also play a crucial role in collaborating with cross-functional teams to solve technical challenges and deliver holistic solutions that align with both business needs and technical requirements.

Responsibilities:

• Code Quality: Write clean, maintainable, and performant UI code using React.js, ES6+, and TypeScript while adhering to best practices and accessibility standards.
• Contribute to scalable and modular front-end architecture: Build reusable component libraries and collaborate on design systems aligned with business goals.
• Code Reviews: Lead and participate in peer code reviews, ensuring consistency and enforcing high-quality UI standards.
• Cross-Functional Collaboration: Work closely with Product Managers, Designers, QA, and Backend Engineers to implement user-friendly and robust UI features. Translate product and business requirements into functional and aesthetic front-end solutions.
• Leadership: Take ownership of UI projects. Mentor junior developers and promote front-end best practices within the team.
• Continuous Learning: Stay up-to-date with emerging front-end technologies and tools. Evaluate and adopt improvements to enhance productivity and product quality.
• Agile Practices: Participate in Agile ceremonies including sprint planning, daily standups, retrospectives, and backlog grooming to ensure delivery efficiency.
• Business Acumen: Understand the business context of the products and actively contribute to delivering technical solutions that align with both technical and business objectives.
• Global Collaboration: Communicate effectively with global business and technical teams, ensuring alignment on requirements, designs, implementation and timelines.

Qualifications:

• Experience: At least 7+ years of total and 6+ years of front-end development experience with a strong focus on building scalable web/mobile applications.
• JavaScript/Typescript Expertise: At least 3+ years of experience and proficiency in JavaScript (ES6+), including async/await, de-structuring, arrow functions, and modular programming. Hands-on experience with TypeScript for developing robust and type-safe UI applications.
• React Expertise: 3+ years of experience building applications with React.js using modern concepts like hooks, context, lazy loading, and code-splitting. Familiarity with Redux for managing application state. Familiarity with Webpack, Babel, ES Lint, Prettier, and modern front-end tool chains.
• React Native Experience: Experience building cross-platform mobile apps using React Native is a strong plus.
• User Behavior Analytics: Experience with user behavior analytics tools like Heap or error monitoring with Sentry.
• UI Design Intuition: Good with mobile-first and responsive web design.
• Front-End Testing: Experience with front-end testing libraries such as Jest, React Testing Library, or Cypress is a plus.
• Version Control: Expertise with Git and GitHub/GitLab. Comfortable with branching strategies, pull requests, and resolving merge conflicts.
• CI/CD: Exposure to CI/CD pipelines for front-end deployment (e.g., GitHub Actions, Jenkins, Vercel, Netlify).
• Agile Methodologies: Strong experience with Agile/Scrum software development practices and tools (e.g., Jira, Trello).
• Problem-Solving: Strong analytical skills with a demonstrated ability to identify and solve complex technical problems. Good debugging and troubleshooting skills, especially with browser compatibility and performance optimization.
• Mentorship: Proven ability to mentor junior developers, provide technical guidance, and help guide teams through challenges and upskilling.
• Communication: Excellent interpersonal and communication skills. Able to explain complex technical issues clearly to both technical and non-technical stakeholders.

Good to have:

• Containerization & DevOps: Experience with containerization (Docker, Kubernetes) and CI/CD pipelines is highly desirable.
• Additional Languages & Frameworks: Knowledge of additional JS frameworks (e.g., Vue, Svelte) or back-end Python Fast API and GraphQL. Familiarity with Lighthouse audits and Core Web Vitals.

What You Can Expect from Us

At ISS STOXX, our people are our driving force. We are committed to building a culture that values diverse skills, perspectives, and experiences. We hire the best talent in our industry and empower them with the resources, support, and opportunities to grow—professionally and personally.

Together, we foster an environment that fuels creativity, drives innovation, and shapes our future success.

Let's empower, collaborate, and inspire.

Let's be #BrilliantTogether.

About ISS STOXX

ISS STOXX GmbH is a leading provider of research and technology solutions for the financial market. Established in 1985, we offer top-notch benchmark and custom indices globally, helping clients identify investment opportunities and manage portfolio risks. Our services cover corporate governance, sustainability, cyber risk, and fund intelligence. Majority-owned by Deutsche Börse Group, ISS STOXX has over 3,400 professionals in 33 locations worldwide, serving around 6,400 clients, including institutional investors and companies focused on ESG, cyber, and governance risk. Clients trust our expertise to make informed decisions for their stakeholders' benefit.

ISS Market Intelligence (ISS MI) is a leading provider of data, insights, and market engagement solutions to the global financial services industry. ISS MI empowers asset and wealth management firms, insurance companies, distributors, service providers, and technology firms to assess their target markets, identify and analyze the best opportunities within those markets, and execute on comprehensive go-to-market initiatives to grow their business. Clients benefit from our increasingly connected global platform that leverages a combination of proprietary data, powerful analytics, timely and relevant insights, in-depth research, as well as an extensive suite of industry-leading media brands that deliver unmatched market connectivity through news and editorial content, events, training, ratings, and awards.