Lead Application Architect / Full-Stack Application Engineer

Responsibilities
Design end-to-end application architecture, including front-end, backend, services, databases, and integrations.
Define application domains, workflows, business rules, data models, and relationships.
Design database schemas, persistence strategies, migrations, and data-access patterns.
Build secure authentication and authorization models, including RBAC, permissions, roles, and access policies.
Design APIs and service contracts for communication between application components and external systems.
Establish patterns for validation, error handling, auditability, logging, and transactional integrity.
Develop application services and backend logic using technologies such as Python, Java, C#, or Node.js.
Partner with front-end developers to define how user interfaces interact with application services and permissions.
Ensure applications meet enterprise requirements for security, scalability, reliability, and maintainability.
Contribute to technical standards, architecture documentation, code reviews, and engineering best practices.

Qualifications
5+ years of experience designing and developing production applications.




Robust understanding of application architecture, domain modeling, business logic, and service-oriented design.
Hands-on experience designing relational databases, schemas, queries, and data access layers.
Experience implementing authentication, authorization, RBAC, permissions, and security controls.
Robust API design experience, including REST and event-driven integrations.
Experience with cloud platforms, preferably AWS.
Proficiency in one or more backend programming languages.
Familiarity with contemporary front-end frameworks and the ability to define clear front-end/backend boundaries.
Experience with testing, CI/CD, observability, and production operations.
Strong communication skills and the ability to translate business needs into technical designs.

Preferred
Experience building enterprise, healthcare, pharmaceutical, or other regulated applications.
Familiarity with audit trails, data governance, privacy, and compliance requirements.
Experience integrating GenAI or agentic capabilities into traditional application architectures.
Knowledge of AWS services for application hosting, databases, identity, and APIs.

📌 Lead Application Architect, Full Stack Application Engineer Chennai
🏢 CHRYSELYS
📍 Chennai