Senior Full Stack Developer

Senior Full Stack DeveloperLocation: Plano, TX (On-site) Duration: 6 Months (Contract to hire) 2 Openings Interview – 1 round interview - in person interview Backend / Frontend – 50/50Job Description:Proven 10 years of experience in full-stack development with a 100% hands-on coding background (not an architecture-only role)Strong technical expertise in Java, Spring Framework / Spring Boot, JavaScript/TypeScript, ReactJS, Next.js, and AWS cloud services (EC2, S3, Lambda, RDS)Proficient in modern JavaScript (ES6+), HTML5/CSS3, component-driven UI development, and web performance optimizationStrong experience building microservices and RESTful API design/development; familiar with secure API practicesExperience with both SQL and NoSQL databases (data modeling, query optimization, and performance tuning)Hands-on experience with CI/CD pipeline implementation (Jenkins, GitLab CI, GitHub Actions) and version control with GitMonitoring and Logging: Experience with tools like Splunk, Dynatrace, CloudWatch, DatadogStrong knowledge of Agile methodologies (Scrum/Kanban) including sprint planning, stand-ups, backlog refinement, and retrospectivesProficient in automated testing frameworks (JUnit, Jest, React Testing Library) and containerization/orchestration technologies (Docker, Kubernetes)Hands-on AI skills development and agentic flow enablement experience (LLM/AI integrations, orchestration, guardrails, evaluation)Ability to lead code reviews, ensure coding standards, and build scalable frontend and backend solutions while remaining hands-onExcellent problem-solving and communication skillsAbout Us: InterSources Inc, a Certified Diverse Supplier, was founded in 2007 and offers innovative solutions to help clients with Digital Transformations across various domains and industries. Our history spans over 19 years and today we are an Award-Winning Global Software Consultancy solving complex problems with technology. We recognize that our employees and our clients are our strengths as the diverse talents and opportunities they bring to the table enable us to grow as a global platform and they are causally linked with our success. We provide strategic and technical advice, and we have expertise in areas covering Artificial Intelligence, Cloud Migration, Custom Software Development, Data Analytics Infrastructure & Cloud Solutions, Cyber Security Services, etc. We make reasonable accommodations for clients and employees and we do not discriminate based on any protected attribute including race, religion, color, national origin, gender sexual orientation, gender identity, age, or marital status. We also are a Google Cloud partner company. We align strategy with execution and provide secure service solutions by developing and using the latest technologies that thrive our resources to deliver industry-leading capabilities to our clients and customers, making it convenient for our clients to do business with InterSources Inc. Our teams also drive growth by refining technology-driven client experiences that put the users first, providing an unparalleled experience. This results in strengthening the core technologies of clients, enabling them to scale with flexibility, create seamless digital experiences and build lifelong relationships.