Sr. FullStack Java Engineer with good JavaScript knowledge at Wise Integration

<div> <div> <p>As a senior software engineer, you will join a skilled team of engineers building a unique product for financial data reporting. Green field project with a mixed tech stack and microservice architecture. You will play a role in developing using Java, Spring, Spring Boot, PostgreSQL, JavaScript, and TypeScript, and working with Node.js, React, Redux, and Saga.</p> <p>Your main focus would be working in the team that works on a very specific component in the application. You should have an exceptionally strong understanding of JavaScript (structures, performance, etc.). You should have exceptional skills with React + Redux, NodeJS, Typescript, and Redux Saga. Strong skills with PostgreSQL. Additionally, you should have strong JAVA, Spring, and Spring Boot knowledge. Have experience working with large-scale cloud-based applications (Azure).</p> </div> </div> Key Responsibilities – Java/JS Full-stack Developer • Software Development - Design, develop, and maintain scalable full-stack applications using Java (Spring Boot) and React.js. • Code Quality & PR Review - Conduct thorough peer reviews of pull requests to ensure code quality, maintainability, and adherence to best practices. • Scrum Ceremonies - Actively participate in Agile ceremonies, including daily standups, sprint planning, retrospectives, and backlog grooming. • Mentorship & Collaboration - Mentor junior developers, share knowledge across the team, and foster a culture of continuous learning. • Frontend Engineering - Build responsive and user-friendly interfaces using React, Redux, and modern UI libraries. • Backend Engineering - Develop robust RESTful APIs and microservices using Java, ensuring performance, security, and scalability. • Database Design & Optimization - Work with SQL (PostgreSQL, MySQL) and NoSQL (MongoDB, Cassandra) databases to design schemas, write efficient queries, and optimize performance. • Testing & Automation - Implement unit, integration, and end-to-end tests using tools like JUnit, Mockito, Cypress, or Selenium. • DevOps & CI/CD - Collaborate on CI/CD pipelines, containerization (Docker), and deployment strategies using tools like Jenkins or GitHub Actions. • Documentation & Reporting - Maintain clear technical documentation and provide regular updates on progress and blockers. Requirements • Bachelor's or Master's of Science. • 4-5 years of experience in software development. • JavaScript - Deep understanding of core JS concepts, including closures, async programming, and ES6+ features. • React + Redux + Redux Saga + TypeScript - Building scalable, maintainable, and high-performance SPAs with advanced state management and typed components. • Advanced HTML & CSS (huge plus) - Semantic markup, accessibility, responsive design, and cross-browser compatibility. • ECMAScript 6+ (Expert level) - Proficient in modern JS syntax and features such as arrow functions, destructuring, modules, promises, and async/await. • Node.js - Building RESTful APIs, microservices, and real-time applications with Express or similar frameworks. • Java, Spring, Spring Boot - Developing robust backend services, integrating with databases, and implementing business logic with enterprise-grade frameworks. • PostgreSQL - Schema design, query optimization, and transactional integrity. • Redis - In-memory data storage for caching, session management, and pub/sub messaging. • Application monitoring using tools like Prometheus, Grafana, ELK Stack, or New Relic to ensure uptime, performance, and quick issue resolution. • Experienced in Scrum of Scrums, sprint planning, retrospectives, and backlog refinement. • Comfortable working in cross-functional teams and managing dependencies across squads. • Strong communication skills for gathering requirements, presenting solutions, and managing expectations. • Experience in stakeholder engagement, demo sessions, and feedback incorporation. • Flexibility to work on backend or frontend. What we offer • Opportunity to be part of a global organization. • Encouraging working atmosphere, engaging activities, and extra benefits (e.g., additional medical insurance (covers gym subscription), team events, outreach activities, and others). • Hybrid work model with remote work opportunities ( 3/5 days weekly from the office). • Open, modern, and ergonomic work environment when working from the office with the multicultural community. • Opportunity to grow professionally and personally (e.g., Udemy) and continuously develop within the domain. • The salary range for this position is from 4.485 to 5.950 EURO gross before taxes.