Full Stack Engineer

In today's market, there is a unique duality in technology adoption. On one side, extreme focus on cost containment by clients, and on the other, deep motivation to modernize their Digital storefronts to attract more consumers and B2B customers. As a leading Modernization Engineering company, we aim to deliver modernization-driven hypergrowth for our clients based on the deep differentiation we have created in Modernization Engineering, powered by our Lightening suite and 16-step Platformation™ playbook. In addition, we bring agility and systems thinking to accelerate time to market for our clients. Headquartered in Bengaluru, India, Sonata has a strong global presence, including key regions in the US, UK, Europe, APAC, and ANZ. We are a trusted partner of world‑leading companies in BFSI (Banking, Financial Services, and Insurance), HLS (Healthcare and Lifesciences), TMT (Telecom, Media, and Technology), Retail & CPG, and Manufacturing space. Our bouquet of Modernization Engineering Services cuts across Cloud, Data, Dynamics, Contact Centers, and around newer technologies like Generative AI, MS Fabric, and other modernization platforms. Job Title: Full stack Developer - React Job Type: Full time permanent position Responsibilities: Client is seeking a Senior Full-Stack Developer who leverages AI-augmented development to build secure, scalable, and high-performance applications. This role is ideal for engineers who embrace AI tools as productivity enhancers and have a strong understanding of modern front‑end frameworks and backend architecture. Key Responsibilities Design, develop, and deploy full‑stack applications using React 19+, TypeScript, Python, Node.JS and modern backend frameworks or languages Architect scalable APIs and data‑driven services with attention to performance and reliability Implement secure authentication flows, error handling, and production‑grade monitoring Design and optimize database schemas and ensure efficient query performance Build responsive, accessible, and performant user interfaces Leverage AI coding assistants (e.g., GitHub Copilot, Cursor, Claude Code) to increase development velocity and code quality Contribute to internal developer tools, AI agent integrations, and LLM‑powered features Collaborate cross‑functionally with product, design, and DevOps teams in an agile environment Mentor engineers on AI‑augmented coding workflows and modern development practice Qualifications: 3+ years of full‑stack software development experience in production environments 2+ years of experience using TypeScript across front‑end and back‑end contexts Expert‑level proficiency in ReactJS and modern front‑end development patterns. Experience in Python is required. Scalable API design (REST or GraphQL) Database schema design and optimization Authentication and authorization best practices Concurrency and performance optimization Robust error handling and observability for production systems Hands‑on experience with cloud environments (AWS preferred) and microservice architectures Demonstrated use of AI coding tools in professional development settings Strong communication skills and a collaborative mindset Preferred Qualifications: Experience with Auth0 or federated SSO integrations Familiarity with LLM integration, RAG pipelines, or vector databases Knowledge of Infrastructure as Code (Terraform, CDK, or CloudFormation) Exposure to AI safety or responsible AI development Why join Sonata Software? At Sonata, you will have an outstanding opportunity to use your skills and imagination to push the boundaries of what is possible. To build solutions that solve some of the world’s toughest problems. You will be challenged, but you will not be alone. You will be joining a team of diverse innovators, all driven to go beyond the status quo to craft what comes next. Sonata Software is an Equal Opportunity Employer encouraging diversity in the workplace. All qualified applicants will receive consideration for employment without regard to race, national origin, gender identity, age, religion, disability, sexual orientation, veteran status, marital status or any other characteristics protected by law. #J-18808-Ljbffr