Job Information
Cornerstone OnDemand Principal Al Engineer - Java Full Stack in Pune, India
We are seeking a highly experienced Principal Backend Engineer with strong hands-on expertise in Java and Python to design, build, and scale enterprise-grade talent management platforms.
In this role, you will act as a technical leader—owning backend architecture, driving engineering excellence, and collaborating closely with product, data, and platform teams to deliver reliable, scalable, and high-performance systems.
In this role you will…
Design, develop, and optimize high-performance backend services using Java and Python
Lead the design and implementation of microservices-based architectures
Build and maintain RESTful APIs, data pipelines, and event-driven systems
Ensure system scalability, reliability, security, and performance
Collaborate with product, frontend, data, and platform teams to translate business needs into technical solutions
Drive backend best practices around code quality, testing, observability, and security
Mentor and review code for senior and mid-level engineers
Participate in architectural reviews and influence long-term platform strategy
Support production systems through monitoring, troubleshooting, and performance tuning
You have what it takes if you have…
Python Stack (Must Have)
Python 3.11+ – async/await, type hints, dataclasses
FastAPI & Pydantic – API development, request/response validation, OpenAPI specifications
SQLAlchemy – ORM usage, async queries, Alembic migrations
Async Programming – asyncio, async DB access, non-blocking I/O
Testing – pytest, async testing patterns, mocks, fixtures
Java Stack (Must Have)
Java 17 / 21 – modern Java features, records, pattern matching, virtual threads
Spring Boot 3.x – REST APIs, validation, Actuator, configuration management
Spring Data JPA – repositories, custom queries, entity relationships
Spring Security – JWT, OAuth2, authentication and authorization
Testing – JUnit 5, Mockito, integration testing, Testcontainers
Backend & Architecture
REST APIs – API-first design, OpenAPI/Swagger documentation
Microservices – service decomposition, inter-service communication
Data Pipelines & Events – asynchronous processing, messaging patterns
Database Design – relational databases, schema design, performance tuning
DevOps & Cloud
Docker – containerization, multi-stage builds
Build Tools
Maven (Java)
Pants / pip / poetry (Python ecosystem)
AWS – EKS, ECR, RDS
Cloud-Native Patterns – scalable deployments, resilience, fault tolerance
CI/CD, Monitoring & Collaboration
CI/CD – GitHub Actions, automated testing and deployments
Monitoring & Observability – logging, metrics, tracing, error tracking
Version Control – Git, pull requests, code reviews
Collaboration – working effectively in cross-functional agile teams
Extra dose of awesome if you have…
Experience with event-driven systems (Kafka, SNS/SQS, etc.)
Exposure to GraphQL or gRPC
Experience building SaaS platforms with multi-tenant architectures
Knowledge of security best practices and compliance requirements
Familiarity with AI/ML data pipelines or analytics platforms
Equal Employment Opportunity has been, and will continue to be, a fundamental commitment at Cornerstone OnDemand. All qualified applicants are given consideration regardless of race, color, gender, age, sexual orientation, national origin, marital status, citizenship status, disability, veteran status, or any other protected class as provided in applicable Federal, State, or Local fair employment laws. If you have a disability or special need that requires accommodation, please contact us at careers@csod.com