Sr Fullstack Developer

Sr Fullstack Developer Full Stack Java Software Developer This position is located at a client site five days a week in Pittsburgh, PA; Strongsville, OH; Dallas, TX; or Birmingham, AL. Are you an experienced software developer who enjoys building robust, scalable applications and providing technical leadership? CGI is seeking a Full Stack Java Software Developer at the Lead level to help design, develop, modernize, and deliver complex enterprise applications for the client. This is a hands on engineering role that combines architecture and implementation. You will make technical decisions, help engineering teams solve difficult problems, and lead technical execution within a team or significant application area. You will guide solutions from design through production while helping improve the quality, reliability, security, and maintainability of the systems you build. Design, develop, test, deploy, and support scalable, secure, and maintainable full stack applications. Serve as a hands on technical leader, contributing production quality code while guiding technical implementation. Design and build backend applications and services using Java, Spring, and Spring Boot. Develop modern web applications using technologies such as React, Angular, TypeScript, JavaScript, HTML, and CSS, depending on the application stack. Design and integrate RESTful APIs, services, and event driven or asynchronous components. Provide technical leadership throughout the software development lifecycle, from requirements and architecture through implementation, testing, deployment, and production support. Translate complex business and technical requirements into practical, maintainable software solutions. Lead technical design discussions and make architectural decisions involving application structure, APIs, integration patterns, data models, security, performance, scalability, and resiliency. Evaluate trade offs between competing approaches and clearly communicate technical recommendations to engineering and non engineering stakeholders. Perform code and design reviews and establish expectations for code quality, automated testing, observability, maintainability, and secure development. Diagnose and resolve complex production issues across application, integration, database, infrastructure, and distributed system boundaries. Improve application performance, availability, resilience, monitoring, and operational supportability. Identify and reduce technical debt while balancing modernization efforts with business delivery priorities. Design and implement solutions using relational and/or NoSQL data stores and sound data access patterns. Apply CI/CD, DevOps, automated testing, source control, and infrastructure or cloud native development practices to improve delivery quality and repeatability. Incorporate security throughout application design and development, including authentication, authorization, secrets management, dependency management, data protection, and secure coding practices. Mentor software engineers through design discussions, pairing, code reviews, troubleshooting, and knowledge sharing. Collaborate closely with Product Owners, Scrum Masters, architecture, security, infrastructure, operations, QA, and other engineering teams. Lead technical discovery and proof of concept efforts for new technologies or architectural approaches. Help develop reusable frameworks, libraries, reference implementations, development standards, and engineering best practices. At the Expert level, provide technical direction across multiple applications or engineering teams and influence broader technology strategy and architectural standards. Significant professional software development experience, with advanced expertise designing and building enterprise applications using Java. Strong experience with the Spring Framework and Spring Boot. Strong full stack development experience, including modern web development technologies such as React or Angular and JavaScript/TypeScript. Experience designing, developing, integrating, and supporting REST APIs and distributed services. Strong understanding of object oriented design, design patterns, data structures, application architecture, and software design principles. Experience with relational databases, SQL, data modeling, and persistence technologies such as JPA/Hibernate. Experience developing automated unit, integration, and/or end to end tests. Experience with Git based source control, build automation, and CI/CD pipelines. Demonstrated ability to troubleshoot complex application and production problems across multiple layers of a technology stack. Strong understanding of application security and secure software development practices. Experience performing technical design and code reviews. Demonstrated ability to lead technical initiatives and mentor other software engineers. Ability to communicate complex technical concepts, alternatives, risks, and trade offs to technical and non technical audiences. Ability to work effectively in an Agile/Scrum software development environment. JSON Web Token (JWT) Together, as owners, let's turn meaningful insights into action. Life at CGI is rooted in ownership, teamwork, respect and belonging. Here, you'll reach your full potential because… You are invited to be an owner from day 1 as we work together to bring our Dream to life. That's why we call ourselves CGI Partners rather than employees. We benefit from our collective success and actively shape our company's strategy and direction. Your work creates value. You'll develop innovative solutions and build relationships with teammates and clients while accessing global capabilities to scale your ideas, embrace new opportunities, and benefit from expansive industry and technology expertise. You'll shape your career by joining a company built to grow and last. You'll be supported by leaders who care about your health and well-being and provide you with opportunities to deepen your skills and broaden your horizons. Come join our team—one of the largest IT and business consulting services firms in the world.