Principal Software Engineer
- Cornerstone
- 7 - 12 years
- Hyderabad
- 13 days ago
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Job Description
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 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
Job Classification
Industry: Software ProductFunctional Area / Department: Engineering - Software & QARole Category: Software DevelopmentRole: Head - EngineeringEmployement Type: Full timeContact Details:
Company: CornerstoneLocation(s): Hyderabad+ View Contact
Keyskills: Performance tuning Maven Database design Configuration management Agile JPA Troubleshooting Analytics Monitoring Python
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