.Net Engineer

Qualifications,

Core C# Skills :

• C# 8+: Nullable types, pattern matching, records, async/await
• .NET Core/.NET 6+: Web API, dependency injection, configuration
• ASP.NET Core: Controllers, middleware, routing, model binding
• Authentication: JWT, OAuth 2.0, Identity Server

Data Access & Database :

• Dapper: Raw SQL queries, stored procedures, performance optimization
• Entity Framework Core: Code-first, migrations, change tracking
• MySQL: Query optimization, indexing, stored procedures, replication
• Redis: Caching strategies, distributed cache, session storage
• Database Design: Normalization, partitioning, database per service

Microservices Architecture :

• Design Principles: Single responsibility, bounded context, decentralized data
• Communication Patterns: Synchronous: HTTP/REST, gRPC and Asynchronous: Event-driven, pub/sub
• Design Patterns: API Gateway, Circuit Breaker, Saga, CQRS, Event Sourcing
• Service Discovery: Consul, Eureka, Kubernetes DNS
• Data Consistency: Eventual consistency, distributed transactions

Messaging & Event Streaming :

• RabbitMQ : Exchanges, queues, routing keys. Dead letter queues, message durability. Clustering, high availability
• Apache Kafka : Topics, partitions, consumer groups. Event sourcing implementation. Stream processing.
• Message Patterns: Request/reply, publish/subscribe, competing consumers.

Containerization & Deployment :

• Docker : Dockerfile, multi-stage builds, image optimization,
• Kubernetes : Pods, services, ingress, configmaps, secrets,
• Helm : Chart creation, templating, releases,
• Service Mesh : Istio basics (optional tapi nilai plus).

Testing Strategy :

• Unit Testing: xUnit/NUnit, mocking (Moq), test fixtures,
• Integration Testing: TestContainers, in-memory databases,
• Contract Testing: Pact untuk API contracts,
• Performance Testing: Load testing dengan NBomber/k6.

Monitoring & Observability :

• Logging: Structured logging (Serilog), correlation IDs,
• Metrics: Application metrics, custom counters,
• Tracing: Distributed tracing, OpenTelemetry,
• APM Tools: Application Insights, Prometheus + Grafana.

DevOps & CI/CD :

• Version Control: Git workflows, branching strategies,
• CI/CD: Azure DevOps, GitHub Actions, atau GitLab CI,
• Infrastructure: Terraform/ARM templates (basic),
• Deployment: Blue-green, canary deployments.

Security :

• API Security: Rate limiting, input validation, OWASP Top 10,
• Secrets Management: Azure Key Vault, HashiCorp Vault,
• Network Security: TLS, service-to-service authentication.

Performance & Scalability :

• Caching: Multi-level caching, cache invalidation strategies,
• Database Optimization: Query performance, connection pooling,
• Async Programming: Non-blocking I/O, parallel processing,
• Resource Management: Memory management, garbage collection tuning.

Middle Level (3-5 years) :

• Implement microservices dengan 70% teknologi di atas,
• Debug distributed systems issues,
• Design database schema dan optimize queries,
• Setup RabbitMQ/Kafka untuk messaging,
• Write comprehensive tests,
• Mentor 1-2 junior developers.

Senior Level (5+ years) :

• Design complete microservices architecture,
• Make technology decisions dan trade-off analysis,
• Performance tuning dan capacity planning,
• Lead technical discussions,
• Troubleshoot production issues,
• Mentor team dan code review leadership.

Additional Information :

• Project Location : Blue Bird Head office - Mampang, South Jakarta
• Industry : Transportation company.
• Working System : Full WFO.
• Duration : 06 months, possible extension.
• Joining Date : on Immediately (client need candidates available on in this November or December 2025).
• Qty : 03 persons.
• Level : Middle level or Senior level.
• Budget CTC Salary : 14 mio for Middle level (maximum) and 19 mio for Senior level (maximum).
• Interview step : There is skill test (via link, Algobash test) & interview session (if the passed of skill test).
• Laptop provided by Diksha or by Consultant (with laptop allowance).
• For this project not provided annual leave.

Notes :

• If candidates has previously taken the skilltest with the Bluebird team, please provide a different email address or new email address that has not been registered for the skill test by the Bluebird Team.
• Please share the profiles of candidates who are available in November or December 2025. The client team will arrange a skill test session (Algobash) for any candidates who are available to proceed with the selection process.