Senior Full Stack Developer - Java & React

ISS STOXX is actively looking for a Senior Software Engineer in React/JavaScript to join the Mumbai Team (Goregaon East).

Overview :

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.

#MIDSENIOR

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What You Can Expect from Us

Our people are the moving force behind our work. We are committed to building a culture that values diverse skills, perspectives, and experiences. If you have the skills, passion, and drive to help us bring clarity and transparency to capital markets, we want to work with you.

Together, we can grow your career in an environment that fuels creativity, drives innovation, and has real impact.

About ISS STOXX

ISS STOXX delivers world-class research, data, and technology solutions that empower capital market participants to pursue their visions with confidence. Our expertise spans indices, corporate governance, sustainability, cyber risk, and fund intelligence, giving clients the tools they need to uncover opportunities, manage risks, and navigate evolving regulations. We are made up of 4,000 professionals operating across 20 countries and serving approximately 5,000 clients, including many of the world’s leading institutional investors. Our scale and reach give us deep market knowledge, while our innovative methodologies allow us to offer our clients tailored insights that drive impact and success.

ISS Market Intelligence serves as a gateway to the global financial services industry, empowering market participants to assess target markets, identify opportunities for growth, and execute comprehensive go-to-market initiatives through a combination of proprietary data, powerful analytics, timely and relevant insights, in-depth research, and industry-leading media brands.

Visit our website: https://www.iss-stoxx.com/

Learn more: https://www.issmarketintelligence.com/

View additional open roles: https://www.iss-stoxx.com/about/careers/

ISS STOXX is an equal employment opportunity employer and does not discriminate against any employee or applicant because of race, color, ethnicity, creed, religion, sex, age, height, weight, citizenship status, national origin, social origin, sexual orientation, gender identity or gender expression, pregnancy status, marital status, familial status, mental or physical disability, veteran status, military service or status, genetic information, or any other characteristic protected by law (referred to as “protected status”). All activities including, but not limited to, recruiting and hiring, recruitment advertising, promotions, performance appraisals, training, job assignments, compensation, demotions, transfers, terminations (including layoffs), benefits, and other terms, conditions, and privileges of employment, are and will be administered on a non-discriminatory basis, consistent with all applicable federal, state, and local requirements.