Sr.Full Stack Software Engineer

Overview

Role Purpose:

We are seeking an experienced Senior Full Stack Engineer (Architecture Focus) to join our dynamic product engineering team. The ideal candidate will combine hands-on coding expertise with strong architectural design skills, leading the development of scalable, secure, and high-performance web applications from the ground up.

We're building digital storefronts that deliver merchant-branded shopping experiences directly inside partner wallet and super apps. These storefronts are web-based interfaces hosted by us and displayed within a WebView in the partner's native mobile app. We integrate with partner SDKs and APIs to handle payments, user authentication, and session management seamlessly. Our engineering team is focused on developing a flexible and secure platform that supports multiple integration models and enables merchants to create customized user interfaces tailored to their brand and customer needs.

Key Responsibilities

System Design & Architecture

• Design scalable, distributed systems and microservices architectures
• Create system architecture diagrams and technical specifications
• Participate in architectural discussions and technical decision-making
• Design for high availability, performance, and fault tolerance
• Plan system scalability and capacity requirements
• Architect end-to-end solutions that seamlessly integrate frontend and backend systems
• Handle data flow and API integration between frontend and backend services
• Optimize application performance across the full stack
• Implement monitoring, logging, and error handling strategies

Frontend Development

• Develop responsive, user-friendly web interfaces using modern JavaScript frameworks
• Work primarily with Vue.js/React.js/ Angular for new projects and feature development
• Maintain and enhance existing applications built with Vue.js/React.js/ Angular
• Collaborate with UX/UI designers to implement pixel-perfect designs
• Ensure cross-browser compatibility and mobile responsiveness
• Implement state management solutions and optimize frontend performance
• Develop and maintain frontend unit tests and integration tests

Backend Development

• Design, develop, and maintain robust Java-based applications using Spring MVC
• Build and optimize RESTful APIs and microservices architectures
• Implement security best practices including authentication, authorization, and data protection
• Design and work with relational databases (MySQL, PostgreSQL, Oracle) including complex schema design
• Optimize database performance through query tuning, indexing strategies, and database design
• Implement caching strategies and performance optimizations
• Write comprehensive unit tests and perform thorough development testing

Other Responsibilities

• Mentor junior developers and conduct code reviews
• Contribute to technical documentation and best practices
• Collaborate with DevOps teams on deployment and infrastructure decisions

Key Skills and Competencies

• Solid experience with at least one modern frontend framework (Vue.js, Angular or React)
• Strong JavaScript, HTML5, and CSS3 skills
• Strong expertise in Java or other OOP languages with deep understanding of object-oriented programming principles
• Extensive experience with Spring Framework, including Spring MVC and/or Spring Boot
• Strong expertise in relational databases (MySQL, PostgreSQL, Oracle)
• System design experience with ability to architect scalable, distributed systems
• Experience with testing frameworks (JUnit, Jest, Cypress)
• Experience with RESTful API design and implementation
• Experience with service-oriented architecture
• Experience integrating with third party web services across a variety of technologies, e.g. REST, SOAP, SMPP
• Experience with some (or all) of the following technologies/frameworks/tools: JMS, JPA/Hibernate, Jersey, Jetty, Kubernetes
• Experience using agile methodologies and tools
• Experience with microservice architecture
• Experience with cloud platforms (AWS, Azure, GCP) and containerization technologies (Docker, Kubernetes)
• Understanding of version control systems (Git)
• Knowledge of build tools (Maven, Gradle) and frontend build processes (Webpack, Vite)
• Collaborate closely with QA team to develop effective test cases and provide support with technical expertise during QA testing
• Strong problem-solving and analytical thinking abilities
• Excellent communication skills and ability to work in a collaborative team environment
• Self-motivated with ability to work independently and manage multiple priorities
• Willingness to learn new technologies and adapt to changing requirements
• Strong attention to detail and commitment to code quality
• Experience mentoring junior team members

Qualifications

• 8+ years of professional in Full Stack software development experience with proven exposure to system architecture, solution design, and end-to-end application development
• Bachelors degree or equivalent in Computer Science Engineering or Information Technology