Senior Frontend ReactJS Developer

• Senior Frontend ReactJS Developer

Location: Wroclaw, Poland

Work mode: 3- day hybrid

Exp level: 8+ yrs

• Key Responsibilities:
• Develop and maintain features within React-based portfolio reporting applications, including saved report packages, report generation and search functionality.
• Modernize existing applications by migrating them to Vite and an enterprise design system.
• Support the migration of legacy ExtJS applications and screens to React.
• Build, integrate and troubleshoot GraphQL and REST APIs between front-end applications and back-end microservices.
• Diagnose issues such as slow or failing API queries, incorrect request payloads and front-end performance problems.
• Deploy UI builds to QA environments, manage release branches, and support regression testing and production releases.
• Work closely with back-end developers, QA teams, release management and product owners to deliver business and regulatory improvements.
• Contribute to Agile development, Test Driven Development and DevOps practices.

Your Team

You will be part of a globally distributed Portfolio Performance Reporting team responsible for applications that support portfolio returns, asset allocation, holdings and client reporting.

The team works collaboratively across front-end development, back-end engineering, data, QA, product and application support functions, with a strong focus on application quality, stability and continuous improvement.

Your Expertise

• Bachelor's or Master's degree, preferably in Computer Science or a related discipline.
• Minimum 8 years of hands-on front-end development experience, preferably within banking or financial services.
• Strong proficiency in React, TypeScript and JavaScript. Mandatory
• Hands-on experience with GraphQL, such as Apollo Client, and REST API integration, including debugging communication between browser applications and back-end services. Mandatory
• Experience with modern front-end build tools, particularly Vite. Mandatory
• Strong understanding of Git branching, version control and release workflows. Mandatory
• Experience migrating legacy front-end applications, such as ExtJS, to React. Preferred
• Experience working with enterprise UI/design systems. Preferred
• Familiarity with data-heavy UI frameworks such as AG Grid. Preferred
• Experience troubleshooting front-end performance issues and memory leaks.
• Knowledge of wealth management, portfolio reporting, performance returns, holdings or financial reporting would be an advantage.
• Comfortable working with cloud-based development environments and containerized deployments.
• Good understanding of Agile, Test Driven Development and DevOps practices.
• Strong analytical and problem-solving skills with attention to detail.
• Strong communication skills and ability to work with senior stakeholders and globally distributed teams.
• Collaborative approach to problem-solving and working within diverse, cross-functional teams.

Key Skills

Mandatory: React | TypeScript | JavaScript | GraphQL | REST APIs | Vite | Git | Front-End Development

Preferred: ExtJS Migration | AG Grid | Apollo Client | Enterprise Design Systems | Microservices | DevOps | Wealth Management | Portfolio Reporting

• What We Offer
• Long-term international project
• International and experienced team
• Professional development opportunities
• Exposure to large-scale enterprise solutions
• Stable project and long-term cooperation
• Collaborative and multicultural working environment