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Backend Developer


Barcelona, España
Tiempo completo

We are looking to hire an experienced Backend Developer who possesses a passion for mobile and web technologies and will work with next-generation payment gateway platform to help us keep growing in the area of mobile payments, financial technology services. Your primary focus will be the development of all server-side logic, definition, and maintenance of the platform database, and ensuring high performance and responsiveness to requests from the front-end. You will also be responsible for integrating the front-end elements built by your coworkers into the platform. A strong understanding of front-end technologies is therefore necessary as well.
The office is located in Barcelona, Rambla Catalunya

Responsibilities for Backend Developer. Our candidate should work on the following areas:
- Collaborate with cross-functional teams to plan, analyze, design, and ship new platform features
- Develop application programming interfaces (APIs) to support platform functionality
- Suggest and implement new web-based products, applications, and protocols
- Fully responsible for backend application development in the team
- Implement new technologies and architectures to maximize application performance
- Remain up to date with the terminology, concepts, and best practices for coding modern web-based applications
- Work closely with colleagues to constantly innovate application functionality and design
- Integration of user-facing elements developed by front-end developers with server-side
- Coordinate cross-functionally to ensure project meets business objectives and compliance standards
- Building and documenting reusable code and libraries for future use
- Optimization of the platform application for maximum speed and scalability
- Implementation of security and data protection
- Design and implementation of data storage solutions
- Write code and tests, build prototypes, solve issues, profile and analyze bottlenecks
- Design high-performance and robust APIs to support mobile and web clients
- Manage and optimize scalable distributed systems on the cloud
- Optimization of web applications for performance and scalability
- Develop automated tests to ensure business needs are met and allow for regression testing
- Communicate with users to understand their needs and experiences

Skills and Qualifications:
- Proficient experience with software development tools and back-end programming languages/technologies/products using Java, JavaScript, Python, Node.js, MEAN stack, MySQL and PL/SQL, NoSQL databases
Strong experience in J2EE, Spring Boot, Angular, React.js, Docker, RabbitMQ, Kubernetes, CQRS, WebSockets
- Experience in MVC/MVVM concept and software design pattern, microservices architecture
- Strong knowledge in RESTful web services
- Expertise in cloud platforms like AWS, GCP
- Deep understanding of code versioning tools, such as GitHub, GitLab, automated unit testing, Gerkin, Jenkins, Selenium, DevOps skills
- Data migration, transformation, and scripting
- Experience with Agile or Scrum software development methodologies
Ability to multi-task, organize, and prioritize work

- Graduate from Information Technology, Computer Science or any related disciplines
- More than 5 years of hands-on proven backend development experience
- Good command of Spanish and English, with proper interpersonal skills - We offer a competitive remuneration package
- Candidate can work remotely

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Backend Developer
Barcelona, España
Rambla Catalunya, 66, 2do C