Sr. Fullstack Developer (JAVA)

Job description:Sr. Fullstack Developer (JAVA)Job Locations: PK - KarachiType: Regular Full-Time (3 Months Contract)Working hours: 12 pm – 9 pm Pakistan timeVision: Transforming how the world discovers, develops, and unleashes cyber talent.Mission: We’re not just filling skills gaps—we’re redefining how companies hire, grow, and retain the people who power their security future.At QuickStart, we are committed to upholding the following core values:Passion |Respect | Accountability | Innovation | Speed | Execution [ PRAISE ]Job SummaryWe are looking for a skilled and motivated Sr. Fullstack Developer (JAVA) with at least 3 years of hands-on experience in developing robust, scalable, and high-performance applications. You will play a key role in designing and building backend systems, APIs, and microservices that support mission-critical business functions.This is an excellent opportunity for a developer who is passionate about clean code, system architecture, and delivering high-quality software in a collaborative environment.Key ResponsibilitiesDesign, develop, test, and deploy high-quality Java applicationsBuild and maintain backend services using Spring Boot or other Java frameworksDevelop and integrate RESTful APIs for internal and external useCollaborate with frontend developers, DevOps, QA, and product managersOptimize performance and scalability of applicationsHands-on experience with AI-assisted development tools such as GitHub Copilot and ChatGPTFollow Agile development practices and participate in daily stand-upsRequired Skills & Qualifications3+ years of professional experience in Java developmentStrong understanding of Core Java, OOP principles, and design patternsHands-on experience with Spring Boot, Spring MVC, and Spring DataExperience in building RESTful web servicesProficiency in SQL and relational databases like MySQL, PostgreSQL, or OracleFamiliarity with Git or other version control systemsBasic understanding of Maven or GradleExperience with unit testing frameworks like JUnit or TestNGPreferred (Nice to Have)Experience with Microservices architectureExposure to Cloud platforms (AWS, Azure, GCP)Familiarity with Docker or KubernetesUnderstanding of message queues (Kafka, RabbitMQ)Prior experience in Agile/Scrum environmentsEducationBachelor’s or Master’s Degree in Computer Science, Software Engineering, or a related fieldJob Types: Full-time, ContractContract length: 3 months